PIN CONFIGURATION FEATURES ORDERING INFORMATION ABSOLUTE MAXIMUM RATINGS. D, F, N Packages

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1 DESCRIPTION The µa71 is a high performance operational amplifier with high open-loop gain, internal compensation, high common mode range and exceptional temperature stability. The µa71 is short-circuit-protected and allows for nulling of offset voltage. PIN CONFIGURATION D, F, N Packages OFFSET NULL 1 NC INVERTING INPUT 2 7 V + FEATURES Internal frequency compensation Short circuit protection Excellent temperature stability High input voltage range NON INVERTING INPUT V OUTPUT OFFSET NULL TOP VIEW Figure 1. Pin Configuration SL95 ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # -Pin Plastic Dual In-Line Package (DIP) -55 C to +5 C µa71n SOT97-1 -Pin Plastic Dual In-Line Package (DIP) to +7 C µa71cn SOT97-1 -Pin Plastic Dual In-Line Package (DIP) - C to +5 C SA71CN SOT97-1 -Pin Ceramic Dual In-Line Package (CERDIP) -55 C to +5 C µa71f 5A -Pin Ceramic Dual In-Line Package (CERDIP) to +7 C µa71cf 5A -Pin Small Outline (SO) Package to +7 C µa71cd SOT96-1 ABSOLUTE MAXIMUM RATINGS V S P D SYMBOL PARAMETER RATING UNIT Supply voltage µa71c ±1 V µa71 ±22 V Internal power dissipation D package 7 mw N package 117 mw F package mw V IN Differential input voltage ±3 V V IN Input voltage 1 ±15 V I SC Output short-circuit duration Continuous T A Operating temperature range µa71c to +7 C SA71C - to +5 C µa71-55 to +5 C T STG Storage temperature range -65 to +15 C T SOLD Lead soldering temperature (1sec max) 3 C NOTES: 1. For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. 199 Aug

2 DC ELECTRICAL CHARACTERISTICS T A = 25 C, V S = ±15V, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS µa71 µa71c Min Typ Max Min Typ Max V OS Offset voltage R S =1kΩ mv UNIT R S =1kΩ, over temp mv V OS / T 1 1 µv/ C I OS Offset current na Over temp. 3 na T A =+5 C 7. 2 na T A =-55 C 2 5 na I OS / T 2 2 pa/ C I BIAS Input bias current 5 5 na Over temp. na T A =+5 C 3 5 na T A =-55 C 3 15 na I B / T 1 1 na/ C V OUT Output voltage swing A VOL Large-signal voltage gain R L =2kΩ, V O =±1V, PSRR CMRR R L =1kΩ ± ±1 ± ±1 V R L =2kΩ, over temp. ±1 ±13 ±1 ±13 V R L =2kΩ, V O =±1V V/mV over temp V/mV Offset voltage adjustment range ±3 ±3 mv Supply voltage rejection ratio Common-mode rejection ratio R S 1kΩ 1 15 µv/v R S 1kΩ, over temp µv/v 7 9 db Over temp. 7 9 db ma I CC Supply current T A =+5 C ma T A =-55 C ma V IN Input voltage range (µa71, over temp.) ± ±13 ± ±13 V R IN Input resistance MΩ mw P D Power consumption T A =+5 C 5 75 mw T A =-55 C 5 1 mw R OUT Output resistance Ω I SC Output short-circuit current ma 199 Aug 31 2

3 DC ELECTRICAL CHARACTERISTICS T A = 25 C, V S = ±15V, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS SA71C Min Typ Max V OS R S =1kΩ mv Offset voltage R S =1kΩ, over temp. 7.5 mv V OS / T 1 µv/ C I OS 2 2 na Offset current Over temp. 5 na I OS / T 2 pa/ C I BIAS 5 na Input bias current Over temp. 15 na I B / T 1 na/ C V OUT A VOL Output voltage swing Large-signal voltage gain UNIT R L =1kΩ ± ±1 V R L =2kΩ, over temp. ±1 ±13 V R L =2kΩ, V O =±1V 2 2 V/mV R L =2kΩ, V O =±1V, over temp. 15 V/mV Offset voltage adjustment range ±3 mv PSRR Supply voltage rejection ratio R S 1kΩ 1 15 µv/v CMRR Common mode rejection ration 7 9 db V IN Input voltage range Over temp. ± ±13 V R IN Input resistance.3 2. MΩ P d Power consumption 5 5 mw R OUT Output resistance 75 Ω I SC Output short-circuit current 25 ma AC ELECTRICAL CHARACTERISTICS T A =25 C, V S = ±15V, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS µa71, µa71c Min Typ Max R IN Parallel input resistance Open-loop, f=2hz.3 MΩ C IN Parallel input capacitance Open-loop, f=2hz 1. pf Unity gain crossover frequency Open-loop 1. MHz Transient response unity gain V IN =2mV, R L =2kΩ, C L 1pF t R Rise time.3 µs Overshoot 5. % SR Slew rate C 1pF, R L 2kΩ, V IN =±1V.5 V/µs UNIT 199 Aug 31 3

4 EQUIVALENT SCHEMATIC INVERTING INPUT V+ Q Q9 Q Q13 NON INVERTING INPUT Q1 Q3 Q2 Q R5 39KΩ 3pF R7.5Ω R 7.5KΩ Q1 Q15 Q1 R9 25Ω Q OUTPUT Q7 Q17 OFFSET NULL Q5 Q6 Q1 Q11 Q22 R1 5Ω Q2 R1 1KΩ R3 5KΩ R2 1KΩ R 5kΩ R 5kΩ R11 5Ω V OFFSET NULL SL96 Figure 2. Equivalent Schematic 199 Aug 31

5 TYPICAL PERFORMANCE CHARACTERISTICS PEAK TO PEAK OUTPUT SWING V Output Voltage Swing as a Function of Supply Voltage 55 o C < T A < +5o C R L > 2kΩ COMMON MODE VOLTAGE RANGE V + Input Common Mode Voltage Range as a Function of Supply Voltage o C < T A < +5o C POWER CONSUMPTION mw Power Consumption as a Function of Supply Voltage T A T A = 25o = 25o C C Input Bias Current as a Function of Ambient Temperature Input Resistance as a Function of Ambient Temperature Input Offset Current as a Function of Supply Voltage 5 1. INPUT BIAS CURRENT na V S = +15V INPUT RESISTANCE MΩ V S = ±15o C INPUT OFFSET CURRENT na Input Offset Current as a Function of Ambient Temperature Power Consumption as a Function of Ambient Temperature Output Voltage Swing as a Function of Load Resistance INPUT OFFSET CURRENT na V S = ±15o C POWER CONSUMPTION mw PEAK TO PEAK OUTPUT SWING V V S = +15V LOAD RESISTANCE kω SL97 Figure 3. Typical Performance Characteristics 199 Aug 31 5

6 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) SHORT CIRCUIT CURRENT ma Output Short Circuit Current as a Function of Ambient Temperature MEAN SQUARE VOLTAGE V 2 Hz Input Noise Voltage MEAN SQUARE VOLTAGE A 2 /Hz Input Noise Current K 1K 1K K 1K 1K TOTAL NOISE REFERRED TO INPUT µ Vrms Broadband Noise for Various Bandwidths 1 1kHz 1 1kHz 1 1kHz.1 1 1K 1K 1K VOLTAGE GAIN Open Looped Voltage Gain K 1K 1K 1M 1M PHASE DEGREES Open Looped Phase Response K 1K 1K 1M 1M SOURCE RESISTANCE Ω PEAK TO PEAK OUTPUT SWING V Output Voltage Swing R L = 1kΩ 1 1K 1K 1K 1M COMMON MODE REJECTION RATE db Common Mode Rejection Ratio K 1K 1K 1M 1M Figure. Typical Performance Characteristics (cont.) OUTPUT mv Transient Response 1% RISE TIME TIME µs R L = 2kΩ C L = 1pF SL9 199 Aug 31 6

7 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) 2 Power Bandwidth (Large Signal Swing vs Frequency) +V V OUT OUTPUT VOLTAGE (Vp p) 2 2 (VOLTAGE FOLLOWER) + 15 VOLT SUPPLIES THD < 5% + µa71 V 1KΩ 1 1 1K 1K 1K V SL99 Figure 5. Typical Performance Characteristics (cont.) 199 Aug 31 7

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