LF247

LF147-LF247 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

■ LOW POWER CONSUMPTION ■ WIDE COMMON-MODE (UP TO V CC +) AND DIFFERENTIAL VOLTAGE RANGE ■ LOW INPUT BIAS AND OFFSET CURRENT ■ OUTPUT SHORT-CIRCUIT PROTECTION ■ HIGH INPUT IMPEDANCE J–FET INPUT STAGE ■ INTERNAL FREQUENCY COMPENSATION ■ LATCH UP FREE OPERATION ■ HIGH SLEW RATE : 16V/µs (typ)

DESCRIPTION

These circuits are high speed J–FET input quad operational amplifiers incorporating well matched, high voltage J–FET and bipolar transistors in a monolithic integrated circuit. The devices feature high slew rates, low input bias and offset currents, and low offset voltage tem- perature coefficient. ORDER CODE N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) Part Number Temperature Range Package ND Example : LF347IN N DIP14 (Plastic Package) D SO14 (Plastic Micropackage) Inverting Input 2 Non-inverting Input 2 Non-inverting Input 1 CCV -CCV Output 3 Output 4 Non-inverting Input 4 Inverting Input 4 Non-inverting Input 3 Inverting Input 3 Output 1 Inverting Input 1 Output 2 LF147 - LF247 LF347 WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS March 2001

SCHEMATIC DIAGRAM (each amplifier) ABSOLUTE MAXIMUM RATINGS Symbol Parameter LF147 LF247 LF347 Unit VCC Supply voltage - note 1) 1. All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero reference level is the midpoint between VCC + and VCC ±18 V Vi Input Voltage - note 2) 2. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less. ±15 V Vid Differential Input Voltage - note 3) 3. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. ±30 V Ptot Power Dissipation 680 mW Output Short-circuit Duration - note 4) 4. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating is not exceeded Infinite Toper Operating Free-air Temperature Range -55 to +125 -40 to +105 0 to +70 °C Tstg Storage Temperature Range -65 to +150 °C Output Non-inverting input Inverting input VCC VCC 200/C87/C87100 /C87100 1.3k 30k 35k 35k /C871001.3k 8.2k

ELECTRICAL CHARACTERISTICS

VCC = ±15V, Tamb = +25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit Vio Input Offset Voltage (Rs = 10kΩ ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 31 0 mV DV io Input Offset Voltage Drift 10 µV/°C Iio Input Offset Current - note 1) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 1. The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature. 51 0 0 pA nA Iib Input Bias Current - note 1 Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 20 200 pA nA Avd Large Signal Voltage Gain (RL = 2kΩ , Vo = ±10V) , Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 200 V/mV SVR Supply Voltage Rejection Ratio (RS = 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax dB ICC Supply Current, Per Amp, no Load Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 1.4 2.7 2.7 mA Vicm Input Common Mode Voltage Range ±11 +15 -12 V CMR Common Mode Rejection Ratio (RS = 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax dB IOS Output Short-Circuit Current Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 40 60 mA ±Vopp Output Voltage Swing Tamb = 25°C R L = 2kΩ R L = 10kΩ Tmin ≤ Tamb ≤ Tmax R L = 2kΩ R L = 10kΩ 13.5 V SR Slew Rate V i = 10V, RL = 2kΩ , CL = 100pF, Tamb = 25°C, unity gain 12 16 V/µs tr Rise Time Vi = 20mV, RL = 2kΩ ,CL = 100pF, Tamb = 25°C, unity gain 0.1 µs Kov Overshoot Vi = 20mV, RL = 2kΩ , CL = 100pF, Tamb = 25°C, unity gain 10 GBP Gain Bandwidth Product f =100kHz, Tamb = 25°C, Vin = 10mV, RL =2kΩ , CL = 100pF 2.5 4 MHz R i Input Resistance 1012 Ω THD Total Harmonic Distortion f =1kHz, Av = 20dB, RL = 2kΩ , CL = 100pF Tamb = 25°C, VO = 2Vpp 0.01 en Equivalent Input Noise Voltage (RS = 100Ω, f = 1KHz) 15 ∅ m Phase Margin 45 Degrees Vo1/Vo2 Channel Separation ( Av = 100) 120 dB nV Hz

MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus LOAD RESISTANCE MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREE AIR TEMP. MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus SUPPLY VOLTAGE 02 4 68 1 0 12 14 16 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (V) R L = 10 kΩ Tamb = +25˚C SUPPLY VOLTAGE ( V)

INPUT BIAS CURRENT versus FREE AIR TEMPERATURE LARGE SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT versus FREQUENCY SUPPLY CURRENT PER AMPLIFIER versus FREE AIR TEMPERATURE LARGE SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT versus FREQUENCY TOTAL POWER DISSIPATION versus FREE AIR TEMPERATURE COMMON MODE REJECTION RATIO versus FREE AIR TEMPERATURE 100 0.1 0.01 INPUT BIAS CURRENT (nA) -50 -25 0 25 50 75 100 125 TEMPERATURE (˚C) V CC = 15V FREQUENCY (Hz) DIFFERENTIAL VOLTAGE AMPLIFICATION (V/V) 100 100 1K 10K 100K 10M 1M DIFFERENTIAL VOLTAGE AMPLIFICATION (left scale) 180 R = 2k/C87 C = 100pF V = 15V T = +125°C L L CC amb PHASE SHIFT (right scale) 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 SUPPLY CURRENT (mA) -75 -50 -25 0 25 50 75 100 125 TEMPERATURE (˚C) V CC = 15V No signal No load 1000 400 200 100 DIFFERENTIAL VOLTAGE AMPLIFICATION (V/V) -75 -50 -25 0 25 50 75 100 125 TEMPERATURE (˚C) R L = 2kΩ V O = 10V V CC = 15V 250 225 200 175 150 125 100 TOTAL POWER DISSIPATION (mW)-75 -50 -25 0 25 50 75 100 125 TEMPERATURE (˚C) V CC = 15V No signal No load 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 SUPPLY CURRENT (mA) 02 46 8 10 12 14 16 SUPPLY VOLTAGE (V) Tamb = +25°C No signal No load

COMMON MODE REJECTION RATIO versus FREE AIR TEMPERATURE OUTPUT VOLTAGE versus ELAPSED TIME VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE EQUIVALENT INPUT NOISE VOLTAGE versus FREQUENCY TOTAL HARMONIC DISTORTION versus FREQUENCY -50 -25 0 25 50 75 100 125 COMMON MODE MODE REJECTION RATIO (dB) TEMPERATURE (˚C) -75 R L = 10 kΩ = 15VV CC tr OUTPUT VOLTAGE (mV) TIME (µs) 10% 90% OVERSHOOT R L = 2kΩ Tamb = +25˚C V CC = 15V 0 0.5 1 1.5 2 2.5 3 3.5 INPUT AND OUTPUT VOLTAGES (V) TIME (/C109s) = 15VVCC RL = 2 k/C87 = 100pFCL Tamb = +25°C OUTPUT INPUT EQUIVALENT INPUT NOISE VOLTAGE (nV/VHz) 10 40 100 400 1k 4k 10k 40k 100k FREQUENCY (Hz) A V = 10 R S = 100 Ω Tamb = +25˚C VCC = 15V 0.4 0.1 0.04 0.01 0.004 0.001 TOTAL HARMONIC DISTORTION (%) 100 400 1k 4k 10k 40k 100k FREQUENCY (Hz) A V = 1 T amb = +25˚C V CC = 15V = 6VV O (rms) A V = 1 T amb = +25˚C = 6VV O (rms) V CC = 15V

PARAMETER MEASUREMENT INFORMATION Figure 1 : Voltage Follower Figure 2 : Gain-of-10 Inverting Amplifier TYPICAL APPLICATIONS AUDIO DISTRIBUTOR AMPLIFIER -eI LF347 RL CL= 100pF 1k/C32/C87 10k/C32/C87 eo LF347 1M /C87 1/C109F Output A Output B Output C Input 100k /C87 100k /C87 100k /C87 100k /C87100/C109F VCC+ f = 100kHzO LF347 LF347 LF347

TYPICAL APPLICATIONS (continued) POSITIVE FEEDBACK BANDPASS FILTER OUTPUT A OUTPUT B /C49/C47/C52220pF 43k /C87 Input 1.5k /C87 43k /C87 220pF 43k /C87 16k /C87 /C49/C47/C52 30k /C87 Output A /C49/C47/C52 1.5k /C87 220pF 43k /C87 220pF 43k /C87 /C49/C47/C52 43k /C87 16k /C87 30k /C87 Output B Ground LF347 LF347 LF347 LF347 SECOND ORDER BANDPASS FILTER fo = 100kHz; Q = 30; Gain = 16 CASCADED BANDPASS FILTER fo = 100kHz; Q = 69; Gain = 16

14 PINS - PLASTIC DIP

Dim. Millimeters Inches a1 0.51 0.020 B 1.39 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 i 5.1 0.201 L 3.3 0.130 Z 1.27 2.54 0.050 0.100

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © The ST logo is a registered trademark of STMicroelectronics © 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom © http://www.st.com PACKAGE MECHANICAL DATA

14 PINS - PLASTIC MICROPACKAGE (SO)

Dim. Millimeters Inches A 1.75 0.069 a1 0.1 0.2 0.004 0.008 a2 1.6 0.063 b 0.35 0.46 0.014 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.020 c1 45° (typ.) D (1) 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 F (1) 3.8 4.0 0.150 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.020 0.050 M 0.68 0.027 S 8° (max.) Note : (1) D and F do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (.066 inc) ONLY FOR DATA BOOK. D M F 1 7 b e E LG C c1 A b1s