LT1724

LT1722/LT1723/LT1724 - Single, Dual, Quad 200MHz Low Noise Precision Op Amps

Document overview

• Manufacturer or author: Linear Technology Corporation
• PDF pages: 18

Technical content

Single, Dual, Quad 200MHz Low Noise Precision Op Amps The L T®1722/L T1723/L T1724 are single/dual/quad, low noise, low power, high speed operational amplifi ers. These products feature lower input offset voltage, lower input bias current and higher DC gain than devices with comparable bandwidth. The 200MHz gain bandwidth ensures high open-loop gain at video frequencies. The low input noise voltage is achieved with reduced supply current. The total noise is optimized for a source resistance between 0.8k and 12k. Due to the input bias current cancellation technique used, the resistance seen by each input does not need to be balanced. The output drives a 150Ω load to ±3V with ±5V supplies. On a single 5V supply the output swings from 1.5V to 3.5V with a 500Ω load connected to 2.5V . The amplifi er is unity-gain stable (C LOAD ≤ 100pF). The L T1722/L T1723/L T1724 are manufactured on Linear Technology’s advanced low voltage complementary bipolar process. The L T1722 is available in the SO-8 and 5-pin SOT-23 packages. The L T1723 is available in the SO-8 and MS8 packages. The L T1724 is available in the 14-lead SO package. Differential Video Line Driver

APPLICATIONS

n 3.8nV/√Hz Input Noise Voltage n 3.7mA Supply Current n 200MHz Gain Bandwidth n Low Total Harmonic Distortion: – 85dBc at 1MHz n 70V/μs Slew Rate n 400μV Maximum Input Offset Voltage n 300nA Maximum Input Bias Current n Unity-Gain Stable n Capacitive Load Stable Up to 100pF n 23mA Minimum Output Current n Specifi ed at ±5V and Single 5V n Low Profi le (1mm) SOT-23 (ThinSot™) Package n Video and RF Amplifi cation n ADSL, HDSL II, VDSL Receivers n Active Filters n Wideband Amplifi ers n Buffers n Data Acquisition Systems L, L T , L TC, L TM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Line Driver Mulitburst Video Signal 1/2 L T1723 R5 2k 750Ω 62.5Ω +VOUT VIN/2 62.5Ω LOAD 62.5Ω LOAD–VIN/2 –VIN

1723 TA01

–VOUT 125Ω CAT-5 TWISTED PAIR C1 5pF 1/2 L T1723 R4 2k VIN 75Ω SOURCE R2 75Ω 62.5Ω C2 5pF +VOUT 0.5V/DIV –VOUT 0.5V/DIV VIN 1V/DIV

1723 TA02

(Note 1) L T1722 TOP VIEW NC OUT NC NC –IN +IN V S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 150°C/W L T1722 OUT 1 V– 2 TOP VIEW S5 PACKAGE 5-LEAD PLASTIC TSOT-23 +IN 3 5 V+ 4 –IN+– TJMAX = 150°C, θJA = 250°C/W L T1723 TOP VIEW OUT B –IN B +IN B OUT A –IN A +IN A V S8 PACKAGE 8-LEAD PLASTIC SO A B TJMAX = 150°C, θJA = 190°C/W L T1723 OUT A –IN A +IN A V V OUT B –IN B +IN B TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP A B TJMAX = 150°C, θJA = 250°C/W L T1724 TOP VIEW S PACKAGE 14-LEAD PLASTIC SO OUT A –IN A +IN A V +IN B –IN B OUT B OUT D –IN D +IN D V +IN C –IN C OUT C –AD –BC TJMAX = 150°C, θJA = 100°C/W Operating Temperature Range (Note 4) ...–40°C to 85°C Specifi ed Temperature Range (Note 5) ....–40°C to 85°C

LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE L T1722CS8#PBF L T1722CS8#TRPBF 1722 8-Lead Plastic SO 0°C to 70°C L T1722IS8#PBF L T1722IS8#TRPBF 1722I 8-Lead Plastic SO –40°C to 85°C L T1722CS5#PBF L T1722CS5#TRPBF L TZB 5-Lead Plastic TSOT-23 0°C to 70°C L T1722IS5#PBF L T1722IS5#TRPBF L TZB 5-Lead Plastic TSOT-23 –40°C to 85°C L T1723CS8#PBF L T1723CS8#TRPBF 1723 8-Lead Plastic SO 0°C to 70°C L T1723IS8#PBF L T1723IS8#TRPBF 1723I 8-Lead Plastic SO –40°C to 85°C L T1723CMS8#PBF L T1723CMS8#TRPBF L TYC 8-Lead Plastic MSOP 0°C to 70°C L T1723IMS8#PBF L T1723IMS8#TRPBF L TZA 8-Lead Plastic MSOP –40°C to 85°C L T1724CS#PBF L T1724CS#TRPBF L T1724CS 14-Lead Plastic SO 0°C to 70°C L T1724IS#PBF L T1724IS#TRPBF L T1724IS 14-Lead Plastic SO –40°C to 85°C Consult L TC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container . Consult L TC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear .com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear .com/tapeandreel/

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) LT1722 SOT-23 and LT1723 MS8 100 150 400 650 μV μV IOS Input Offset Current 40 300 nA IB Input Bias Current 40 300 nA en Input Noise Voltage f = 10kHz 3.8 nV/√ Hz in Input Noise Current f = 10kHz 1.2 pA/√ Hz RIN Input Resistance V CM = ±3.5V Differential 53 5 MΩ kΩ CIN Input Capacitance 2p F Input Voltage Range + Input Voltage Range – 3.5 4 –4 –3.5 V V CMRR Common Mode Rejection Ratio V CM = ±3.5V 80 100 dB PSRR Power Supply Rejection Ratio V S = ±2.3V to ± 5.5V 78 90 dB AVOL Large-Signal Voltage Gain V OUT = ±3V, RL = 500Ω VOUT = ±3V, RL = 150Ω V/mV V/mV VOUT Output Swing R L = 500Ω, VIN = ±10mV RL = 150Ω, VIN = ±10mV ±3.2 ±3.1 ±3.8 ±3.4 V V IOUT Output Current V OUT = ± 3V, 10mV Overdrive 23 50 mA ISC Short-Circuit Current V OUT = 0V, VIN = ±1V 35 90 mA SR Slew Rate A V = –1, (Note 7) 45 70 V/μs Full Power Bandwidth 3V Peak, (Note 8) 3.7 MHz GBW Gain Bandwidth f = 200kHz 115 200 MHz t S Settling Time A V = –1, 2V, 0.1% AV = –1, 2V, 0.01% 112 ns ns tr, tf Rise Time, Fall Time A V = 1, 10% to 90%, VIN = 0.2VP-P, RL = 150Ω 6 ns Overshoot A V = 1, VIN = 0.2VP-P, RL = 150Ω, RF = 0Ω 15 % Propagation Delay 50% V IN to 50% VOUT = 0.2VP-P, RL = 150Ω 3 ns RO Output Resistance A V = 1, f = 1MHz 0.15 Ω Channel Separation V OUT = ±3V, RL = 150Ω 82 90 dB IS Supply Current Per Amplifi er 3.7 4.5 mA TA = 25°C. VS = 5V , VCM = 2.5V , RL to 2.5V , unless otherwise noted. VOS Input Offset Voltage (Note 6) LT1722 SOT-23 and LT1723 MS8 250 350 550 800 μV μV IOS Input Offset Current 20 300 nA IB Input Bias Current 20 300 nA en Input Noise Voltage f = 10kHz 4 nV/√Hz in Input Noise Current f = 10kHz 1.1 pA/√Hz RIN Input Resistance V CM = 1.5V to 3.5V Differential 53 2 MΩ kΩ CIN Input Capacitance 2p F Input Voltage Range + Input Voltage Range – 3.5 4 1 1.5 V V TA = 25°C, VS = ±5V, VCM = 0V, unless otherwise noted.

ELECTRICAL CHARACTERISTICS T A = 25°C. VS = 5V , VCM = 2.5V , RL to 2.5V , unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CMRR Common Mode Rejection Ratio V CM = 1.5V to 3.5V 80 100 dB AVOL Large-Signal Voltage Gain V OUT = 1.5V to 3.5V, RL = 500Ω 4 10 V/mV VOUT Output Swing+ Output Swing– RL = 500Ω, VIN = ±10mV RL = 500Ω, VIN = ±10mV 3.6 3.8 0.9 1.4 V V IOUT Output Current V OUT = 3.5V or 1.5V, 10mV Overdrive 10 20 mA ISC Short-Circuit Current V OUT = 2.5V, VIN = ±1V 22 55 mA SR Slew Rate A V = –1, (Note 7) 40 70 V/µs Full Power Bandwidth 1V Peak, (Note 8) 8.7 MHz GBW Gain Bandwidth (Note 10) f = 200kHz 115 180 MHz tr, tf Rise Time, Fall Time A V = 1, 10% to 90%, VIN = 0.2VP-P, RL = 500Ω 5 ns Overshoot A V = 1, VIN = 0.2VP-P, RL = 500Ω 16 % Propagation Delay 50% V IN to 50% VOUT, 0.1V, RL = 500Ω 3 ns RO Output Resistance A V = 1, f = 1MHz 0.19 Ω Channel Separation V OUT = 1.5V to 3.5V, RL = 500Ω 82 90 dB IS Supply Current Per Amplifi er 3.8 5 mA The ● denotes the specifi cations which apply over the temperature range of 0°C ≤ T A ≤ 70°C. VS = ±5V , VCM = 0V , unless otherwise noted. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) LT1722 SOT-23 and LT1723 MS8 l l 700 850 μV μV Input VOS Drift (Note 9) l 37 μ V / ° C IOS Input Offset Current l 350 nA IB Input Bias Current l 350 nA Input Voltage Range + Input Voltage Range – l l 3.5 –3.5 V V CMRR Common Mode Rejection Ratio V CM = ±3.5V l 75 dB PSRR Power Supply Rejection Ratio V S = ±2.3V to ±5.5V l 76 dB AVOL Large-Signal Voltage Gain V OUT = ±3V, RL = 500Ω VOUT = ±3V, RL = 150Ω l l V/mV V/mV VOUT Output Swing R L = 500Ω, VIN = ±10mV RL = 150Ω, VIN = ±10mV l l ±3.15 ±3.05 V V IOUT Output Current V OUT = ±3V , 10mV Overdrive l 22 mA ISC Short-Circuit Current V OUT = 0V , VIN = ±1V l 30 mA SR Slew Rate A V = –1, (Note 7) l 35 V/μs GBW Gain Bandwidth f = 200kHz l 100 MHz Channel Separation V OUT = ±3V , RL = 150Ω l 81 dB IS Supply Current Per Amplifi er l 5.45 mA

ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the temperature range of 0°C ≤ T A ≤ 70°C. VS = 5V , VCM = 2.5V , RL to 2.5V , unless otherwise noted. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) LT1722 SOT-23 and LT1723 MS8 l l 850 950 μV μV Input VOS Drift (Note 9) l 37 μ V / ° C IOS Input Offset Current l 350 nA IB Input Bias Current l 350 nA Input Voltage Range + Input Voltage Range – l l 3.5 1.5 V V CMRR Common Mode Rejection Ratio V CM = 1.5V to 3.5V l 75 dB AVOL Large-Signal Voltage Gain V OUT = 1.5V to 3.5V, RL = 500Ω l 3 V/mV VOUT Output Swing+ Output Swing– RL = 500Ω, VIN = ±10mV RL = 500Ω, VIN = ±10mV l l 3.55 1.45 V V IOUT Output Current V OUT = 3.5V, or 1.5V , 10mV Overdrive l 9m A ISC Short-Circuit Current V OUT = 2.5V, VIN = ±1V l 11 mA SR Slew Rate A V = –1, (Note 7) l 30 V/μs GBW Gain Bandwidth (Note 10) f = 200kHz l 100 MHz Channel Separation V OUT = 1.5V to 3.5V, RL = 500Ω l 81 dB IS Supply Current l 5.95 mA The l denotes the specifi cations which apply over the temperature range of –40°C ≤ T A ≤ 85°C. VS = ± 5V , VCM = 0V , unless otherwise noted. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) L T1722 SOT-23 and L T1723 MS8 l l 900 1100 μV μV Input VOS Drift (Note 9) l 3 10 μV/°C IOS Input Offset Current l 400 nA IB Input Bias Current l 400 nA Input Voltage Range + Input Voltage Range – l l 3.5 –3.5 V V CMRR Common Mode Rejection Ratio V CM = ±3.5V l 75 dB PSRR Power Supply Rejection Ratio V S = ±2.0V to ±5.5V l 75 dB AVOL Large-Signal Voltage Gain V OUT = ±3V , RL = 500Ω VOUT = ±3V , RL = 150Ω l l V/mV V/mV VOUT Output Swing R L = 500Ω, VIN = ±10mV RL = 150Ω, VIN = ±10mV l l ±3.1 ±3.0 V V IOUT Output Current V OUT = ±3V , 10mV Overdrive l 20 mA ISC Short-Circuit Current V OUT = 0V , VIN = ±1V l 25 mA SR Slew Rate A V = –1, (Note 7) l 25 V/μs GBW Gain Bandwidth f = 200kHz l 90 MHz Channel Separation V OUT = ±3V , RL = 150Ω l 80 dB IS Supply Current l 5.95 mA

ELECTRICAL CHARACTERISTICS The ● denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 85°C. VS = 5V , VCM = 2.5V, RL to 2.5V, unless otherwise noted. (Note 5) Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The inputs are protected by back-to-back diodes. If the differential input voltage exceeds 0.7V, the input current should be limited to less than 10mA. Note 3: A heat sink may be required to keep the junction temperature below the absolute maximum rating when the output is shorted indefi nitely. Note 4: The LT1722C/LT1722I, LT1723C/LT1723I, LT1724C/LT1724I are guaranteed functional over the operating temperature range of –40°C to 85°C. Note 5: The LT1722C/LT1723C/LT1724C are guaranteed to meet specifi ed performance from 0°C to 70°C. The LT1722C/LT1723C/LT1724C are SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V OS Input Offset Voltage (Note 6) LT1722 SOT-23 and LT1723 MS8 l l 1000 1200 µV µV Input VOS Drift (Note 9) l 31 0 μ V / ° C IOS Input Offset Current l 400 nA IB Input Bias Current l 400 nA Input Voltage Range + Input Voltage Range – l l 3.5 1.5 V V CMRR Common Mode Rejection Ratio V CM = 1.5V to 3.5V l 75 dB AVOL Large-Signal Voltage Gain V OUT = 1.5V to 3.5V, RL = 500Ω l 2 V/mV VOUT Output Swing+ Output Swing– RL = 500Ω, VIN = ±10mV RL = 500Ω, VIN = ±10mV l l 3.5 1.5 V V IOUT Output Current V OUT = 3.5V or 1.5V , 30mV Overdrive l 8m A ISC Short-Circuit Current V OUT = 2.5V, VIN = ±1V l 10 mA SR Slew Rate A V = –1, (Note 7) l 20 V/μs GBW Gain Bandwidth (Note 10) f = 200kHz l 90 MHz Channel Separation V OUT = 1.5V to 3.5V, RL = 500Ω l 80 dB IS Supply Current l 6.45 mA designed, characterized and expected to meet specifi ed performance from –40°C to 85°C but are not tested or QA sampled at these temperatures. The LT1722I/LT1723I/LT1724I are guaranteed to meet specifi ed performance from –40°C to 85°C. Note 6: Input offset voltage is pulse tested and is exclusive of warm-up drift. Note 7: Slew rate is measured between ±2V on the output with ±3V input for ±5V supplies and ±1V on the output with ±1.5V input for single 5V supply. (For 5V supply, the voltage levels are 2.5V referred.) Note 8: Full power bandwidth is calculated from the slew rate: FPBW = SR/2 πV P Note 9 : This parameter is not 100% tested. Note 10 : This parameter is guaranteed through correlation with slew rate.

TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current vs Temperature Input Noise Spectral Density Open-Loop Gain vs Resistive Load Total Noise vs Unmatched Source Resistance Warm-Up Drift vs Time V OS Shift vs VCM and VS Supply Current vs Temperature Input Common Mode Range vs Supply Voltage Input Bias Current vs Common Mode Voltage TEMPERATURE (°C) –50 SUPPL Y CURRENT (mA) 4.0 4.5 5.0 25 75

1723 G01

3.5 3.0 –25 0 50 100 125 2.5 2.0 PER AMPLIFIER VS = 5V VS = ±5V SUPPLY VOLTAGE (±V) INPUT COMMON MODE RANGE (V) 2 4 5

1723 G02

0.5 –0.5 –1.0 –1.5 –1.2 2.0 1.5 1.0 0.5 V /_275(VOS) < 500μV TA = 25°C INPUT COMMON MODE VOLTAGE (V) INPUT BIAS CURRENT (nA) 400 300 200 100 –100 –200 –300 –400

1723 G03

–3 –1 1 5 2–4 –2 0 4 VS = ±5V TA = –45°C TA = 125°C TA = 25°C TA = 85°C TEMPERATURE (°C) –50 INPUT BIAS CURRENT (nA) 25 75

1723 G04

–20 –25 0 50 IB– IB– IB+ IB+ 100 125 –40 –60 VS = ±5V VS = 5V FREQUENCY (kHz) 0.01 0.1 100 0.1 in 1 10 100

1723 G05

INPUT VOLTAGE NOISE (nV/√Hz) INPUT CURRENT NOISE (pA/√Hz) en LOAD RESISTANCE (Ω) 100

74.0 OPEN-LOOP GAIN (dB)

76.5 79.0 81.5 84.0 89.0 1000 10000

1723 G06

86.5 TA = 25°C VS = ±5V, VO = ±3V VS = ±2.5V, VO = ±1V SOURCE RESISTANCE, RS (kΩ) TOTAL NOISE VOLTAGE (nV/√Hz) 0.01 1 10 100

1723 G07

0.1 0.1 100 VS = ±5V TA = 25°C f = 10kHz TOTAL NOISE RESISTOR NOISE RS TIME AFTER POWER-UP (SEC) OFFSET VOLTAGE DRIFT (μV) 20 40 60 80

1723 G08

TA = 25°C TYPICAL DATA VS = ±5V VS = ±2.5V COMMON MODE VOLTAGE (V) –300 VOS SHIFT (μV) –100 100 300 –200 200 –3 –1 1 3

1723 G09

5–4–5 –2 0 2 4 VS = ±6.3V VS = ±5V VS = ±4V VS = ±3V VS = ±2.5V TA = 25°C TYPICAL PART VS = ±6V

TYPICAL PERFORMANCE CHARACTERISTICS Open-Loop Gain vs Temperature Output Voltage Swing vs Supply Voltage Output Short-Circuit Current vs Temperature Gain and Phase vs Frequency Overshoot vs Capacitive Load Output Impedance vs Frequency VOS vs Temperature Undistorted Output Swing vs Frequency Undistorted Output Swing vs Frequency TEMPERATURE (°C) –60 –500 OFFSET VOLTAGE (μV) –400 –200 –100 60 80 100 200

1723 G10

–300 –40 –20 0 20 40 120 100 VS = ±5V TYPICAL PART VS = ±2.5V FREQUENCY (MHz) 0.1 OUTPUT VOLTAGE (VP-P) 11 0

1723 G11

AV = 1, RF = 0Ω, RIN = 500Ω AV = –1, RF = 500Ω VS = ±5V RL = 150Ω 2% MAX DISTORTION FREQUENCY (MHz) 0.1 OUTPUT VOLTAGE (VP-P) 1.0 2.0 3.0 4.0 11 0

1723 G12

5.0 0.5 1.5 2.5 3.5 4.5 AV = –1, RF = 500Ω VS = 5V RL = 500Ω 2% MAX DISTORTION AV = 1, RF = 0Ω, RIN = 500Ω TEMPERATURE (°C) –50 OPEN-LOOP GAIN (dB) 0 50 75

1723 G13

–25 25 100 125 VS = ±5V, VO = ±3V VS = 5V, VO = ±1V RL = 500Ω RL = 500Ω RL = 150Ω SUPPLY VOLTAGE (±V) 2.0 OUTPUT VOLTAGE SWING (V) 5.5 –0.5 –1.0 –1.5 –2.0 2.0 1.5 1.0 0.5 V 6.0 TA = 25°C VIN = 10mV RL = 500Ω RL = 500Ω RL = 150Ω RL = 150Ω TEMPERATURE (°C) –50 OUTPUT SHORT-CIRCIUT CURRENT (mA)65 110 0 50 75

1723 G15

–25 25 100 125 VS = ±5V VS = 5V SOURCE SOURCE SINK SINK FREQUENCY (MHz) GAIN (dB) PHASE (DEG) 0.01 1 10 100

1723 G16

–10 –10 0.1 PHASE GAIN ±5V ±5V TA = 25°C AV = –1 RF = RG = 500Ω CAPACITIVE LOAD (pF) OVERSHOOT (%)

1723 G17

20 30 40 60 70 80 90 100VS = ±5V RL = 500Ω VIN = 2VP-P f = 1MHz AV = –1, RF = 500Ω, RS = 0Ω AV = 1, RF = 0Ω, RS = 500Ω AV = 1, RF = 500Ω, RS = 0Ω FREQUENCY (MHz) 0.01

0.001 OUTPUT IMPEDANCE (Ω)

0.1 100 11 00.1 100

1723 G18

0.01 TA = 25°C VS = ±5V AV = 100 AV = 10 AV = 1

TYPICAL PERFORMANCE CHARACTERISTICS Channel Separation vs Frequency Power Supply Rejection Ratio vs Frequency Common Mode Rejection Ratio vs Frequency Slew Rate vs Temperature Phase Margin vs Supply Voltage Gain Bandwidth vs Supply Voltage Gain vs Frequency, AV = 1 Gain vs Frequency, A V = 1 Gain vs Frequency, A V = –1 FREQUENCY (MHz) GAIN (dB) 10 100

1723 G19

TA = 25°C AV = 1 RF = 0Ω NO RL ±5V CL = 100pF CL = 50pF CL = 0pF FREQUENCY (MHz) GAIN (dB) 10 100

1723 G20

TA = 25°C AV = 1 NO RL NO CL ±5V RF = 500Ω RF = 1k RF = 0Ω FREQUENCY (MHz) GAIN (dB) 10 100

1723 G21

TA = 25°C AV = –1 RF = RG = 500Ω NO RL ±5V CL = 100pF CL = 50pF CL = 0pF FREQUENCY (MHz) 0.1 –50CROSSTALK (dB) –30 –10 1 10 100

1723 G22

–70 –60 –40 –20 –80 –90 TA = 25°C VO = 6VP-P RL = 150Ω FREQUENCY (MHz) POWER SUPPLY REJECTION RATIO (dB) 100 0.01 1 10 100

1723 G23

0.1 TA = 25°C VS = ±5V AV = 1–PSRR +PSRR FREQUENCY (MHz) COMMON MODE REJECTION RATIO (dB) 100 110 0.01 1 10 100

1723 G24

0.1 TA = 25°C VS = ±5V TEMPERATURE (°C) –50 SLEW RATE (V/μs)

1723 G40

–25 0 50 100 75 100 125 TA = 25°C AV = –1 RG = RF = 500Ω VS = ±5V, SR+ VS = ±5V, SR– VS = ±2.5V, SR– VS = ±2.5V, SR+ SUPPLY VOLTAGE (±V) 2.5 PHASE MARGIN (DEG) 4.5

1723 G41

3.53 5 5.546 TA = 25°C AV = –1 VIN = –20dBm RG = RF = 500Ω RL = 500Ω CL = 5pF CL = 25pF CL = 55pF RL = 500Ω RL = 500Ω RL = 150Ω RL = 150Ω RL = 150Ω SUPPLY VOLTAGE (±V) 2.5 GAIN BANDWIDTH (MHz) 215

1723 G42

3 3.5 4.5 185 180 220 210 205 195 5 5.5 6 TA = 25°C AV = –1 VIN = –20dBm RG = RF = 500Ω CL = 25pF CL = 25pF RL = 150Ω RL = 500Ω CL = 5pF CL = 5pF CL = 55pF CL = 55pF

TYPICAL PERFORMANCE CHARACTERISTICS Harmonic Distortion vs Frequency AV = 2, VO = 0.2VP-P Harmonic Distortion vs Frequency A V = 2, VO = 0.2VP-P Harmonic Distortion vs Frequency A V = 1, VO = 2VP-P Harmonic Distortion vs Frequency A V = 1, VO = 2VP-P Harmonic Distortion vs Frequency A V = 2, VO = 2VP-P Slew Rate vs Supply Voltage Harmonic Distortion vs Frequency AV = 1, VO = 0.2VP-P Harmonic Distortion vs Frequency A V = 1, VO = 0.2VP-P SUPPLY VOLTAGE (±V) SLEW RATE (V/μs) SR+ SR+ SR– SR– 3 4 4.5 6.5

1723 G25

2.5 3.5 5 5.5 6 VIN_P-P = VS, VOUT_MES AT 2/3 OF VIN_P-P VIN = ±1.5V, VOUT_MES AT ±1V TA = 25°C AV = –1 RF = RG = RL = 500Ω FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G26

–50 VS = ±5V AV = 1 RF = 0Ω RIN = 0Ω VO = 0.2VP-P RL = 150Ω, 2ND RL = 500Ω, 2ND RL = 500Ω, 3RD RL = 150Ω, 3RD FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G27

–50 VS = 5V AV = 1 RF = 0Ω RIN = 0Ω VO = 0.2VP-P RL = 150Ω, 2ND RL = 500Ω, 2ND RL = 150Ω, 3RD RL = 500Ω, 3RD FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G28

–50 VS = ±5V AV = 2 RF = 500Ω VO = 0.2VP-P RL = 150Ω, 2ND RL = 150Ω, 3RD RL = 500Ω, 2ND RL = 500Ω, 3RD FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G29

–50 VS = 5V AV = 2 RF = 500Ω VO = 0.2VP-P RL = 150Ω, 2ND RL = 150Ω, 3RD RL = 500Ω, 2ND RL = 500Ω, 3RD FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G30

–50 VS = ±5V AV = 1 RF = 0Ω RIN = 500Ω VO = 2VP-P RL = 150Ω, 3RD RL = 500Ω, 3RD RL = 150Ω, 2ND RL = 500Ω, 2ND FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G31

–50 VS = 5V AV = 1 RF = 0Ω RIN = 500Ω VO = 2VP-P RL = 150Ω, 3RD RL = 500Ω, 3RDRL = 150Ω, 2ND RL = 500Ω, 2ND FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G32

–50 VS = ±5V AV = 2 RF = 500Ω VO = 2VP-P RL = 150Ω, 3RD RL = 500Ω, 3RD RL = 500Ω, 2ND RL = 150Ω, 2ND

TYPICAL PERFORMANCE CHARACTERISTICS Large-Signal T ransient, AV = 1 Small-Signal T ransient, A V = 1 Small-Signal T ransient, A V = 1 Large-Signal T ransient, AV = –1 Small-Signal T ransient, A V = –1 Harmonic Distortion vs Frequency AV = 2, VO = 2VP-P Settling Time vs Output Step FREQUENCY (MHz) 0.1 –100 HARMONIC DISTORTION (dBc)–90 –80 –70 –60 –40 11 0

1723 G33

–50 VS = 5V AV = 2 RF = 500Ω VO = 2VP-P RL = 150Ω, 3RD RL = 500Ω, 3RD RL = 500Ω, 2ND RL = 150Ω, 2ND SETTLING TIME (ns) OUTPUT STEP (V) 1.5 2.0 140

1723 G43

–0.5 –1.0 –3.0 80 100 12070 90 110 130 –2.0 3.0 2.5 1.0 0.5 –1.5 –2.5 VS = ±5V AV = –1 RF = 500Ω CF = 0pF 0.1% SETTLING 0.1% SETTLING 0.01% SETTLING 0.01% SETTLING Small-Signal T ransient, AV = –1 1V/DIV AV = 1 RS = 500Ω RF = 0Ω 50ns/DIV

1723 G34

AV = 1 RS = 0Ω RF = 0Ω CL = 0pF 50ns/DIV

1723 G35

AV = 1 RS = 0Ω RF = 0Ω CL = 100pF 50ns/DIV

1723 G36

AV = –1 RG = 500Ω RF = 500Ω 50ns/DIV

1723 G37

AV = –1 RG = 500Ω RF = 500Ω CL = 0pF 50ns/DIV

1723 G38

AV = –1 RG = 500Ω RF = 500Ω CL = 100pF 50ns/DIV

1723 G39

and AC performance, as well as noise and distortion. of less than ideal layouts than other high speed amplifi ers. circuit is shown in Figure 1. Figure 1. Input Stage Protection optimized for a source resistance between 0.8k and 12k. input noise current is the dominant contributor. helps to reduce any peaking.

1723 F01

Power dissipation is composed of two parts. The fi rst is due to the quiescent supply current and the second is due to on-chip dissipation caused by the load current. Worst-case instantaneous power dissipation for a given resistive load in one amplifi er occurs at the maximum supply current and when the output voltage is at half of either supply voltage (or the maximum swing if less than half supply voltage). Therefore P D(MAX) in one amplifi er is: P D(MAX) = (V+ – V–)(IS(MAX)) + (V+/2)2/RL or P D(MAX) = (V+ – V–)(IS(MAX)) + (V + – VO(MAX))(VO(MAX)/RL) Example. Worst-case conditions are: both op amps in the L T1723IS8 are at T A = 85°C, VS = ±5V , RL = 150Ω, VOUT = 2.5V. T J(MAX) = 85°C + (203mW)(190°C/W) = 124°C which is less than the absolute maximum rating at 150°C. Circuit Operation The L T1722/L T1723/L T1724 circuit topology is a voltage feedback amplifi er. The operation of the circuit can be understood by referring to the Simplifi ed Schematic. The fi rst stage is a folded cascode formed by the transistors Q1 through Q4. A degeneration resistor, R, is used in the input stage. The current mirror Q5, Q6 is bootstrapped by Q7. The capacitor, C, assures the bandwidth and the slew rate performance. The output stage is formed by complementary emitter followers, Q8 through Q11. The diodes D1 and D2 protect against input reversed biasing. The remaining part of the circuit assures optimum voltage and current biases for all stages. Low noise, reduced current supply, high speed and DC accurate parameters are distinctive features of the L T1722/L T1723/L T1724. +IN R ?–IN Q10 VS+ VS– OUT 1723 SS Q11 C VBIAS I3 I4 I2I1

1.50 – 1.75 (NOTE 4)2.80 BSC 0.30 – 0.45 TYP

5 PLCS (NOTE 3)

DATUM ‘A’ 0.09 – 0.20 (NOTE 3) S5 TSOT-23 0302 REV B PIN ONE

2.90 BSC

(NOTE 4)

0.95 BSC

1.90 BSC

0.80 – 0.90

1.00 MAX

0.01 – 0.100.20 BSC 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193

3.85 MAX

0.62 MAX 0.95 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 1.4 MIN2.62 REF

1.22 REF

(Reference L TC DWG # 05-08-1635)

(Reference L TC DWG # 05-08-1660 Rev F) MSOP (MS8) 0307 REV F 0.53 ± 0.152 (.021 ± .006) SEATING PLANENOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 0.18 (.007) 0.254 (.010) 1.10 (.043) MAX 0.22 – 0.38 (.009 – .015) TYP 0.1016 ± 0.0508 (.004 ± .002) 0.86 (.034) REF 0.65 (.0256) BSC 0° – 6° TYP DETAIL “A” DETAIL “A” GAUGE PLANE 12 3 4 4.90 ± 0.152 (.193 ± .006) 8 7 6 5 3.00 ± 0.102 (.118 ± .004) (NOTE 3) 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 0.52 (.0205) REF 5.23 (.206) MIN 3.20 – 3.45 (.126 – .136) 0.889 ± 0.127 (.035 ± .005) RECOMMENDED SOLDER PAD LAYOUT 0.42 ± 0.038 (.0165 ± .0015) TYP 0.65 (.0256) BSC 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference L TC DWG # 05-08-1610) .016 – .050 (0.406 – 1.270) .010 – .020 0°– 8° TYP .008 – .010 (0.203 – 0.254) SO8 0303 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC 1 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 8 7 6 5 .189 – .197 (4.801 – 5.004) NOTE 3 .228 – .244 (5.791 – 6.197) .245 MIN .160 ±.005 RECOMMENDED SOLDER PAD LAYOUT .045 ±.005 .050 BSC .030 ±.005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) PACKAGE DESCRIPTION

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However , no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. PACKAGE DESCRIPTION S Package 14-Lead Plastic Small Outline (Narrow .150 Inch) (Reference L TC DWG # 05-08-1610) N 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 14 13 .337 – .344 (8.560 – 8.738) NOTE 3 .228 – .244 (5.791 – 6.197) 12 11 10 9 5 6 7 N/2 .016 – .050 (0.406 – 1.270) .010 – .020 0° – 8° TYP .008 – .010 (0.203 – 0.254) S14 0502 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC .245 MIN N 1 2 3 N/2 .160 ±.005 RECOMMENDED SOLDER PAD LAYOUT .045 ±.005 .050 BSC .030 ±.005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear .com © LINEAR TECHNOLOGY CORPORATION 2002 LT 0909 REV B • PRINTED IN USA RELATED PARTS TYPICAL APPLICATION PART NUMBER DESCRIPTION COMMENTS LT1677 Single, Low Noise Rail-to-Rail Amplifi er 3V Operation, 2.5mA Supply Current, 4.5nV/ √Hz Max en, 60µV Max VOS LT1800/LT1801/LT1802 Single/Dual/Quad, Low Power, 80MHz Rail-to-Rail Precision Amplifi er 1.6mA Supply Current, 350µV VOS, 2.3V Operation LT1806/LT1807 Single/Dual, Low Noise 325MHz Rail-to-Rail Amplifi ers 2.5V Operation, 550µV MAX VOS, 3.5nV/√Hz LT1809/LT1810 Single/Dual, Low Distortion 180MHz Rail-to-Rail Amplifi ers 2.5V Operation, –90dBc at 5MHz Distortion LT1812/LT1813/LT1814 Single/Dual/Quad, 3mA, 750V/µs Amplifi ers 5V Operation, 3.6mA Supply Current, 40mA Min Output Current LT6202/LT6203/LT6204 Single/Dual/Quad, 100MHz, Low Noise Rail-to-Rail Op Amps 2nV/ √Hz, 2.5mA on Single 3V Supply 4- to 2-Wire Local Echo Cancellation Differential Receiver Amplifi er n:1 (n = 1) VL 100Ω LINE 50Ω 50Ω 1k 1k VR LINE RECEIVER 10pF 1k 1k 2k 10pF

1723 TA03