LT1722CS8

LT1722 LINER | Alldatasheet

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n Video and RF Amplification n ADSL, HDSL II, VDSL Receivers n Active Filters n Wideband Amplifiers n Buffers n Data Acquisition Systems n 3.8nV/ÖHz Input Noise Voltage n 3.7mA Supply Current n 200MHz Gain Bandwidth n Low Total Harmonic Distortion: –85dBc at 1MHz n 70V/ms Slew Rate n 400mV 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 Specified at –5V and Single 5V Single, Dual, Quad 200MHz Low Noise Precision Op Amps The LT 1722/LT1723/LT1724 are single/dual/quad, low noise, low power, high speed operational amplifiers. These products feature lower input offset voltage, lower input bias current and higher DC gain than devices with compa- rable 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 150W load to –3V with –5V supplies. On a single 5V supply the output swings from 1.5V to 3.5V with a 500W load connected to 2.5V. The amplifier is unity- gain stable (C LOAD £ 100pF). The LT1722/LT1723/LT1724 are manufactured on Linear Technology’s advanced low voltage complementary bipolar process. The LT1722 is available in the SO-8 and 5-pin SOT-23 packages. The LT1723 is available in the SO-8 and MS8 packages. The LT1724 is available in the 14-lead SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. 1/2 LT1723 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 LT1723 R4 2k VIN 75Ω SOURCE R2 75Ω 62.5Ω C2 5pF Differential Video Line Driver Line Driver Mulitburst Video Signal +VOUT 0.5V/DIV

1723 TA02

–VOUT 0.5V/DIV DESCRIPTIO UFEATURES APPLICATIO SU TYPICAL APPLICATIO U

TJMAX = 150°C, qJA = 190°C/W ABSOLUTE AXI U RATI GSW WW U PACKAGE/ORDER I FOR ATIOUU W (Note 1) Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grades are identified by a label on the shipping container. Operating Temperature Range (Note 4)...–40 °C to 85°C Specified Temperature Range (Note 5) ... –40°C to 85°C ORDER PART NUMBER LT1722CS8 LT1722IS8 ORDER PART NUMBER S5 PART MARKING* LTZB LT1722CS5 LT1722IS5 TJMAX = 150°C, qJA = 250°C/W 1722 1722I S8 PART MARKING TOP VIEW OUT B –IN B +IN B OUT A –IN A +IN A V S8 PACKAGE 8-LEAD PLASTIC SO A B TOP VIEW NC OUT NC NC –IN +IN V S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, qJA = 150°C/W OUT 1 V– 2 TOP VIEW S5 PACKAGE 5-LEAD PLASTIC SOT-23 +IN 3 5 V+ 4 –IN+– ORDER PART NUMBER LT1723CS8 LT1723IS8 1723 1723I S8 PART MARKING TJMAX = 150°C, qJA = 100°C/W ORDER PART NUMBER LT1724CS LT1724IS 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 ORDER PART NUMBER LT1723CMS8 LT1723IMS8 LTYC LTZA MS8 PART MARKING 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, qJA = 250°C/W

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) 100 400 mV LT1722 SOT-23 and LT1723 MS8 150 650 mV IOS Input Offset Current 40 300 nA IB Input Bias Current 40 300 nA en Input Noise Voltage f = 10kHz 3.8 nV/ ÖHz in Input Noise Current f = 10kHz 1.2 pA/ ÖHz RIN Input Resistance V CM = –3.5V 5 35 M W Differential 50 k W CIN Input Capacitance 2p F Input Voltage Range + 3.5 4 V Input Voltage Range – –4 –3.5 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 = 500W 10 17 V/mV VOUT = –3V, RL = 150W 71 4 V / m V VOUT Output Swing R L = 500W , VIN = –10mV –3.2 –3.8 V RL = 150W , VIN = –10mV –3.1 –3.4 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/ ms Full Power Bandwidth 3V peak, (Note 8) 3.7 MHz GBW Gain Bandwidth f = 200kHz 115 200 MHz tS Settling Time A V = –1, 2V, 0.1% 91 ns AV = –1, 2V, 0.01% 112 ns tr, tf Rise Time, Fall Time A V = 1, 10% to 90%, VIN = 0.2VP-P, RL = 150W 6n s Overshoot A V = 1, VIN = 0.2VP-P, RL = 150W , RF = 0W 15 % Propagation Delay 50% V IN to 50% VOUT = 0.2VP-P, RL = 150W 3n s RO Output Resistance A V = 1, f = 1MHz 0.15 W Channel Separation V OUT = –3V, RL = 150W 82 90 dB IS Supply Current Per Amplifier 3.7 4.5 mA TA = 25°C, VS = –5V, VCM = 0V, unless otherwise noted.ELECTRICAL CHARACTERISTICS TA = 25°C. VS = 5V, VCM = 2.5V, RL to 2.5V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) 250 550 mV LT1722 SOT-23 and LT1723 MS8 350 800 mV IOS Input Offset Current 20 300 nA IB Input Bias Current 20 300 nA en Input Noise Voltage f = 10kHz 4 nV/ ÖHz in Input Noise Current f = 10kHz 1.1 pA/ ÖHz RIN Input Resistance V CM = 1.5V to 3.5V 5 32 M W Differential 55 k W CIN Input Capacitance 2p F Input Voltage Range + 3.5 4 V Input Voltage Range – 1 1.5 V 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 = 500W 41 0 V / m V VOUT Output Swing+ R L = 500W , VIN = –10mV 3.6 3.8 V Output Swing– R L = 500W , VIN = –10mV 0.9 1.4 V

The l denotes the specifications which apply over the temperature range of 0°C £ TA £ 70°C. VS = –5V, VCM = 0V, unless otherwise noted. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) l 700 mV LT1722 SOT-23 and LT1723 MS8 l 850 mV Input V OS Drift (Note 9) l 37 mV/°C IOS Input Offset Current l 350 nA IB Input Bias Current l 350 nA Input Voltage Range + l 3.5 V Input Voltage Range – l –3.5 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 = 500 W l 9V / m V VOUT = –3V, R L = 150 W l 6 V/mV VOUT Output Swing R L = 500 W , VIN = –10mV l –3.15 V RL = 150 W , VIN = –10mV l –3.05 V IOUT Output Current V OUT = –3V, 10mV Overdrive l 22 mA ISC Short-Circuit Current V OUT = 0V, V IN = –1V l 30 mA SR Slew Rate A V = –1, (Note 7) l 35 V/ ms GBW Gain Bandwidth f = 200kHz l 100 MHz Channel Separation V OUT = –3V, R L = 150 W l 81 dB IS Supply Current Per Amplifier l 5.45 mA SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS 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/ ms 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 = 500W 5n s Overshoot A V = 1, VIN = 0.2VP-P, RL = 500W 16 % Propagation Delay 50% V IN to 50% VOUT, 0.1V, RL = 500W 3n s RO Output Resistance A V = 1, f = 1MHz 0.19 W Channel Separation V OUT = 1.5V to 3.5V, RL = 500W 82 90 dB IS Supply Current Per Amplifier 3.8 5 mA TA = 25°C. VS = 5V, VCM = 2.5V, RL to 2.5V, unless otherwise noted.ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the temperature range of –40°C £ TA £ 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 900 mV LT1722 SOT-23 and LT1723 MS8 l 1100 mV Input VOS Drift (Note 9) l 31 0 mV/°C IOS Input Offset Current l 400 nA IB Input Bias Current l 400 nA Input Voltage Range + l 3.5 V Input Voltage Range – –3.5 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 = 500W l 8V / m V VOUT = –3V, RL = 150W l 5V / m V VOUT Output Swing R L = 500W , VIN = –10mV l –3.1 V RL = 150W , VIN = –10mV l –3.0 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/ ms GBW Gain Bandwidth f = 200kHz l 90 MHz Channel Separation V OUT = –3V, RL = 150W l 80 dB IS Supply Current l 5.95 mA SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage (Note 6) l 850 mV LT1722 SOT-23 and LT1723MS8 l 950 mV Input V OS Drift (Note 9) l 37 mV/°C IOS Input Offset Current l 350 nA IB Input Bias Current l 350 nA Input Voltage Range + l 3.5 V Input Voltage Range – l 1.5 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, R L = 500 W l 3V / m V VOUT Output Swing+ R L = 500 W , VIN = –10mV l 3.55 V Output Swing– R L = 500 W , VIN = –10mV l 1.45 V IOUT Output Current V OUT = 3.5V or 1.5V, 10mV Overdrive l 9m A ISC Short-Circuit Current V OUT = 2.5V, V IN = –1V l 11 mA SR Slew Rate A V = –1, (Note 7) l 30 V/ ms GBW Gain Bandwidth (Note 10) f = 200kHz l 100 MHz Channel Separation V OUT = 1.5V to 3.5V, R L = 500 W l 81 dB IS Supply Current l 5.95 mA The l denotes the specifications which apply over the temperature range of 0°C £ TA £ 70°C. VS = 5V, VCM = 2.5V, RL to 2.5V, unless otherwise noted. (Note 5)

The l denotes the specifications which apply over the temperature range of –4 0°C £ TA £ 85°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) l 1000 mV LT1722 SOT-23 and LT1723 MS8 l 1200 mV Input VOS Drift (Note 9) l 31 0 mV/°C IOS Input Offset Current l 400 nA IB Input Bias Current l 400 nA Input Voltage Range + l 3.5 V Input Voltage Range – l 1.5 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 = 500W l 2V / m V VOUT Output Swing+ R L = 500W , VIN = –10mV l 3.5 V Output Swing– R L = 500W , VIN = –10mV l 1.5 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/ ms GBW Gain Bandwidth (Note 10) f = 200kHz l 90 MHz Channel Separation V OUT = 1.5V to 3.5V, RL = 500W l 80 dB IS Supply Current l 6.45 mA Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. 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 indefinitely. 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 specified performance from 0°C to 70°C. The LT1722C/LT1723C/LT1724C are designed, characterized and expected to meet specified 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 specified 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/2pV P Note 9 : This parameter is not 100% tested. Note 10 : This parameter is guaranteed through correlation with slew rate.

Supply Current vs Temperature Input Common Mode Range vs Supply Voltage Input Bias Current vs Common Mode Voltage Input Bias Current vs Temperature Input Noise Spectral Density Open-Loop Gain vs Resistive Load TYPICAL PERFOR A CE CHARACTERISTICSUW TEMPERATURE (°C) –50 SUPPLY 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 D(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 Total Noise vs Unmatched Source Resistance 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 Warm-Up Drift vs Time V OS Shift vs VCM and VS

TYPICAL PERFOR A CE CHARACTERISTICS UW VOS vs Temperature 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 Undistorted Output Swing vs Frequency 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 Undistorted Output Swing vs Frequency 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 Open-Loop Gain vs Temperature 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 Output Voltage Swing vs Supply Voltage 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 Output Short-Circuit Current vs Temperature 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 Gain and Phase vs Frequency Overshoot vs Capacitive Load Output Impedance vs Frequency 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

VS = –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 PERFOR A CE CHARACTERISTICS UW Gain vs Frequency, AV = 1 Channel Separation vs Frequency Power Supply Rejection Ratio vs Frequency Common Mode Rejection Ratio vs Frequency Gain vs Frequency, AV = –1 FREQUENCY (MHz) GAIN (dB) 10 100

1723 G19

TA = 25°C AV = 1 RF = 0Ω NO RL –5V 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 Gain vs Frequency, AV = 1 Slew Rate vs Temperature TEMPERATURE (°C) –5 0 SLEW RATE (V/µs)

1723 G40

–2 5 0 5 0 100 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+ Phase Margin vs Supply Voltage 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 Gain Bandwidth vs Supply Voltage 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

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 TYPICAL PERFOR A CE CHARACTERISTICS UW Slew Rate vs Supply Voltage Harmonic Distortion vs Frequency AV = 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 Harmonic Distortion vs Frequency AV = 1, VO = 0.2VP-P 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 Harmonic Distortion vs Frequency AV = 2, VO = 0.2VP-P Harmonic Distortion vs Frequency AV = 1, VO = 2VP-P Harmonic Distortion vs Frequency A V = 2, VO = 0.2VP-P 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 Harmonic Distortion vs Frequency AV = 2, VO = 2VP-P Harmonic Distortion vs Frequency A V = 1, VO = 2VP-P 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

Large-Signal Transient, AV = 1 AV = 1 50ns/DIV 1723 G34 RS = 500W RF = 0W Small-Signal Transient, AV = 1 AV = 1 50ns/DIV 1723 G35 RS = 0W RF = 0W CL = 0pF Small-Signal Transient, AV = 1 AV = 1 50ns/DIV 1723 G36 RS = 0W RF = 0W CL = 100pF Large-Signal Transient, AV = –1 AV = –1 50ns/DIV 1723 G37 RG = 500W RF = 500W Small-Signal Transient, AV = –1 AV = –1 50ns/DIV 1723 G38 RG = 500W RF = 500W CL = 0pF Small-Signal Transient, AV = –1 AV = –1 50ns/DIV 1723 G39 RG = 500W RF = 500W CL = 100pF 1V/DIV 50mV/DIV 50mV/DIV 1V/DIV 50mV/DIV 50mV/DIV TYPICAL PERFOR A CE CHARACTERISTICS UW Harmonic Distortion vs Frequency AV = 2, VO = 2VP-P 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 Settling Time vs Output Step

DC and AC performance, as well as noise and distortion. of less than ideal layouts than other high speed amplifiers. protection circuit is shown in Figure 1.

1723 F01

Figure 1. Input Stage Protection optimized for a source resistance between 0.8k and 12k. input noise current is the dominant contributor. capacitor also helps to reduce any peaking.

Power dissipation is composed of two parts. The first 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 amplifier 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 amplifier is: PD(MAX) =( V + – V–)(IS(MAX)) + (V+/2)2/RL or PD(MAX) =( V + – V–)(IS(MAX)) + (V+ – VO(MAX))(VO(MAX)/RL) Example. Worst-case conditions are: both op amps in the LT1723IS8 are at T A = 85 °C, V S = –5V, R L = 150 W , VOUT = 2.5V. TJ(MAX) = 85°C + (203mW)(190°C/W) = 124°C which is less than the absolute maximum rating at 150°C. APPLICATIO S I FOR ATIOWU UU Circuit Operation The LT1722/LT1723/LT1724 circuit topology is a voltage feedback amplifier. The operation of the circuit can be understood by referring to the Simplified Schematic. The first 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 comple- mentary 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 LT1722/ LT1723/LT1724. SI PLIFIED SCHE ATICWW +IN R –IN Q10 VS+ VS– OUT 1723 SS Q11 C VBIAS I3 I4 I2I1

8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 5-Lead Plastic SOT-23 (Reference LTC DWG # 05-08-1633) 1.50 – 1.75 0.25 – 0.50 TYP 5 PLCS NOTE 3 DATUM ‘A’ 0.09 – 0.20 (NOTE 3) S5 SOT-23 0502 PIN ONE 2.80 – 3.10 (NOTE 4)

0.95 BSC

1.90 BSC

0.90 – 1.30 0.90 – 1.45 0.00 – 0.150.20 BSC 0.35 – 0.55 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. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) ATTENTION: ORIGINAL SOT23-5L PACKAGE. MOST SOT23-5L PRODUCTS CONVERTED TO THIN SOT23 PACKAGE, DRAWING # 05-08-1635 AFTER APPROXIMATELY APRIL 2001 SHIP DATE

3.85 MAX

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

1.22 REF

.016 – .050 (0.406 – 1.270) .010 – .020 0°– 8° TYP .008 – .010 (0.203 – 0.254) SO8 0502 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC N 2 3 4 N/2 .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 N

123 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)

14-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660) 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. MSOP (MS8) 0802 0.53 – 0.015 (.021 – .006) SEATING PLANE NOTE: 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 (.077) 0.254 (.010) 1.10 (.043) MAX 0.22 – 0.38 (.009 – .015) TYP 0.13 – 0.076 (.005 – .003) 0.86 (.034) REF 0.65 (.0256) BSC 0° – 6° TYP DETAIL “A” DETAIL “A” GAUGE PLANE 12 3 4 4.90 – 0.15 (1.93 – .006) 8 7 6 5 3.00 – 0.102 (.118 – .004) (NOTE 3) 3.00 – 0.102 (.118 – .004) NOTE 4 0.52 (.206) REF 5.23 (.206) MIN 3.2 – 3.45 (.126 – .136) 0.889 – 0.127 (.035 – .005) RECOMMENDED SOLDER PAD LAYOUT 0.42 – 0.04 (.0165 – .0015) TYP 0.65 (.0256) BSC 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 .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 l FAX: (408) 434-0507 l www.linear.com ª LINEAR TECHNOLOGY CORPORATION 2002 LT/TP 1002 1K REV A • PRINTED IN USA RELATED PARTS TYPICAL APPLICATIO U PART NUMBER DESCRIPTION COMMENTS LT1677 Single, Low Noise Rail-to-Rail Amplifier 3V Operation, 2.5mA Supply Current, 4.5nV/ ÖHz Max en, 60mV Max VOS LT1800/LT1801/LT1802 Single/Dual/Quad, Low Power, 80MHz Rail-to-Rail 1.6mA Supply Current, 350 mV VOS, 2.3V Operation Precision Amplifier LT1806/LT1807 Single/Dual, Low Noise 325MHz Rail-to-Rail Amplifiers 2.5V Operation, 550 mVMAX VOS, 3.5nV/ÖHz LT1809/LT1810 Single/Dual, Low Distortion 180MHz Rail-to-Rail Amplifiers 2.5V Operation, –90dBc at 5MHz Distortion LT1812/LT1813/LT1814 Single/Dual/Quad, 3mA, 750V/ ms Amplifiers 5V Operation, 3.6mA Supply Current, 40mA Min Output Current LT6202/LT6203/LT6204 Single/Dual/Quad, 100MHz, Low Noise Rail-to-Rail Op Amp 2nV/ ÖHz, 2.5mA on Single 3V Supply n:1 (n = 1) VL 100Ω LINE 50Ω 50Ω 1k 1k VR LINE RECEIVER 10pF 1k 1k 2k 10pF

1723 TA03

4- to 2-Wire Local Echo Cancellation Differential Receiver Amplifier