NJM8502 Precision, Dual, JFET Input Operational Amplifier ■ FEATURES ● Low Input Offset Voltage ■ PACKAGE OUTLINE VIO=400µV max. VIO=700µV max. (Ta= -40ºC to +125ºC) ● Low Input Offset Voltage Drift ∆VIO/∆T=10µV/ºC max. (Ta= -40ºC to +125ºC) ● Small Package MSOP8(VSP8) MEET JEDEC MO-187-DA ● Low Supply Current Icc=3mA max. ● High Slew Rate SR=20V/µs typ. ● Wide Bandwidth GBP=7MHz typ. ● Low Noise en=10nV/√Hz at f=1kHz typ. ● Low Input Bias Current IB=80pA max. at Ta=25ºC ● Guaranteed Temperature Topr= -40ºC to +125ºC ● Operating Voltage Vopr= ±4.5V to ±16V NJM8502R (MSOP8(VSP8)) ■ GENERAL DESCRIPTION The NJM8502 is a dual high precision JFET input operational amplifier featuring low offset, low offset drift, low bias current, high slew rate, low noise and wide operating temperature range. The precision performance, high speed and low noise make the NJM8502 especially suitable for filter and amplification of high speed and small signal in instruments, automated test equipment, sensors and other precision applications. ■ APPLICATIONS ● Current Sensor ● Photodiode Amplification ● Reference Voltage Circuit ● Automatic Test Equipment ■ PIN CONFIGURATION ■ PACKAGE DESCRIPTION +0.3 . 2.9−0.1 1 −INPUT A 2 +INPUT A 3 V− 4 A B 8 V+ 7 OUTPUT B 6 −INPUT B 5 +INPUT B 8 5 2.8±0.2 OUTPUT A 1 4.0±0.3 (Top View) 4 0.65 0.6MAX Ver. 01 -1- NJM8502 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25ºC, unless otherwise noted.) PARAMETER SYMBOL + RATING - UNIT Supply Voltage V /V ±18 V Common-Mode Input Voltage Range VIC ±18 (Note1) V Differential Input Voltage Range VID ±36 V Power Dissipation(Note4) PD 595(Note2), 805(Note3) Operating Temperature Range Topr -40 to +125 Storage Temperature Range Tstg -55 to +150 (Note1) For supply voltage less than ±18V, the absolute maximum rating is equal to the supply voltage. (Note2) EIA/JEDEC STANDARD Test board (114.3 x 76.2 x 1.57mm, 2layers, FR-4) mounting. (Note3) EIA/JEDEC STANDARD Test board (114.3 x 76.2 x 1.6mm, 4layers, FR-4) mounting. (Note4) See Figure “Power Dissipation Curve” when ambient temperature is over 25˚C. mW ºC ºC Power Dissipation Derating Curve 900 Power Dissipation Pd (mW) 800 (Note3) 700 600 500 (Note2) 400 300 200 100 0 0 25 50 75 100 125 150 Ambient Temperature Ta(deg) ■ RECOMMENDED OPERATING VOLTAGE PARAMETER Supply Voltage -2- SYMBOL V+/V- RATING MIN ±4.5 TYP - MAX ±16 Ver. 01 UNIT V NJM8502 ■ ELECTRICAL CHARACTERISTICS ●DC CHARACTER (V+/V-=±15V, Ta=25ºC, VICM=0V, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 80 400 µV Input Characteristics Input Offset Voltage Input Offset Voltage Drift (Note5) Input Bias Current VIO1 VIO2 Ta=-40ºC to +125ºC - - 700 µV ∆Vio/∆T Ta=-40ºC to +125ºC - 1.0 10 µV/ºC - 25 80 pA Ta=-40ºC to +125ºC - - 15 nA - 6 75 pA - - 500 pA IB1 IB2 Input Offset Current IIO1 IIO2 Common Mode Input Voltage Range Common Mode Rejection Ratio Voltage Gain Channel Separation Ta=-40ºC to +125ºC VICM1 CMR≥ 86dB -12.5 - +12.5 V VICM2 CMR≥ 80dB, Ta=-40ºC to +125ºC -12.5 - +12.5 V CMR1 VCM=-12.5V to +12.5V 86 108 - dB CMR2 VCM=-12.5V to +12.5V, Ta=-40ºC to +125ºC 80 - - dB Av1 RL=2kΩ, Vo= -13.5V to +13.5V 90 100 - dB Av2 RL=2kΩ, Vo= -13.5V to +13.5V, Ta=-40ºC to +125ºC 82 - - dB CS DC - 125 - dB Output Characteristics Maximum Output Voltage VOH1 RL=10kΩ, Ta=-40ºC to +125ºC +14.0 +14.2 - V VOL1 RL=10kΩ, Ta=-40ºC to +125ºC - -14.9 -14.6 V VOH2 RL=2kΩ, Ta=-40ºC to +125ºC +13.8 +14.1 - V - -14.8 -14.5 V VOH31 VOL2 RL=600Ω RL=2kΩ, Ta=-40ºC to +125ºC +13.5 +13.9 - V VOH32 RL=600Ω, Ta=-40ºC to +125ºC +11.4 - - V VOL41 RL=600Ω - -14.3 -13.8 V VOL42 RL=600Ω, Ta=-40ºC to +125ºC - - -12.1 V ICC1 GV=+1, RL=∞ - 2.6 3.0 mA ICC2 GV=+1, RL=∞, Ta=-40ºC to +125ºC - - 3.3 mA Supply Characteristics Quiescent Current Supply Voltage Rejection Ratio SVR1 V+/V-=±4.5V to ±16V 86 110 - dB SVR2 V+/V-=±4.5V to ±16V, Ta=-40ºC to +125ºC 80 - - dB MIN. TYP. MAX. UNIT (Note5) Guaranteed by endpoint limits. ●AC CHARACTER (V+/V-=±15V, Ta=25ºC, VICM=0V, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION Dynamic Performance Unity Gain Frequency Slew Rate Total Harmonic Distortion GV=+100, RL=2kΩ, CL=10pF - 7.0 - MHz +SR fT RISE, GV=+1, VIN=1Vpp, RL=2kΩ - 20 - V/µs -SR FALL, GV=+1, VIN=1Vpp, RL=2kΩ - 20 - V/µs THD f=1kHz, Gv=+1,RL=2kΩ - 0.0005 - % Noise Performance Input Voltage Noise VNI fo=1Hz to 100Hz - 0.18 - µVrms Input Voltage Noise Density en fo=1kHz - 10 - nV/√Hz Ver. 01 -3- NJM8502 ■ ELECTRICAL CHARACTERISTICS ●DC CHARACTER (V+/V-=±5V, Ta=25ºC, VICM=0V, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 80 400 µV Input Characteristics Input Offset Voltage Input Offset Voltage Drift (Note5) Input Bias Current VIO1 VIO2 Ta=-40ºC to +125ºC - - 700 µV ∆Vio/∆T Ta=-40ºC to +125ºC - 1.0 10 µV/ºC - 21 75 pA Ta=-40ºC to +125ºC - - 10 nA - 5 50 pA - - 500 pA IB1 IB2 Input Offset Current IIO1 IIO2 Common Mode Input Voltage Range Common Mode Rejection Ratio Voltage Gain Channel Separation Ta=-40ºC to +125ºC VICM1 CMR≥ 86dB -2.0 - +2.5 V VICM2 CMR≥ 80dB, Ta=-40ºC to +125ºC -2.0 - +2.5 V CMR1 VCM=-2V to +2.5V 86 108 - dB CMR2 VCM=-2V to +2.5V, Ta=-40ºC to +125ºC 80 - - dB Av1 RL=2kΩ, Vo= -3V to +3V 85 93 - dB Av2 RL=2kΩ, Vo= -3V to +3V, Ta=-40ºC to +125ºC 80 - - dB CS DC - 125 - dB +4.1 +4.3 - V Output Characteristics Maximum Output Voltage VOH1 RL=10kΩ, Ta=-40ºC to +125ºC VOL1 RL=10kΩ, Ta=-40ºC to +125ºC - -4.9 -4.7 V VOH2 RL=2kΩ, Ta=-40ºC to +125ºC +3.9 +4.2 - V VOL2 RL=2kΩ, Ta=-40ºC to +125ºC - -4.9 -4.5 V VOH31 RL=600Ω +3.7 +4.1 - V VOH32 RL=600Ω, Ta=-40ºC to +125ºC +3.6 - - V VOL41 RL=600Ω - -4.8 -4.3 V VOL42 RL=600Ω, Ta=-40ºC to +125ºC - - -4.2 V ICC1 GV=+1, RL=∞ - 2.0 3.0 mA ICC2 GV=+1, RL=∞, Ta=-40ºC to +125ºC - - 3.3 mA MIN. TYP. MAX. UNIT GV=+100, RL=2kΩ, CL=10pF - 7.0 - MHz +SR RISE, GV=+1, VIN=1Vpp, RL=2kΩ - 18 - V/µs -SR FALL, GV=+1, VIN=1Vpp, RL=2kΩ - 18 - V/µs THD f=1kHz, Gv=+1,RL=2kΩ - 0.0005 - % Supply Characteristics Quiescent Current (Note5) Guaranteed by endpoint limits. ●AC CHARACTER (V+/V-=±5V, Ta=25ºC, VICM=0V, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION Dynamic Performance Unity Gain Frequency Slew Rate Total Harmonic Distortion fT Noise Performance Input Voltage Noise VNI fo=1Hz to 100Hz - 0.18 - µVrms Input Voltage Noise Density en fo=1kHz - 10 - nV/√Hz -4- Ver. 01 NJM8502 ■ TEST CIRCUIT EK 50k 9.1k VCC 10k 1k 50 100k 100k VOUT 100k DUT 9.1k 50 RL V 1k 50k EC VEE Fig.1 test circuit for Input Offset Voltage, Input Offset Current, Input Bias Current Voltage Gain, Supply Voltage Rejection Ratio, Common Mode Rejection Ratio VCC VCC A VOUT DUT ±1V V DUT RL VEE Fig.2 test circuit for Maximum Output Voltage Ver. 01 VEE Fig.3 test circuit for Quiescent Current -5- NJM8502 ■ ELECTRICAL CHARACTERISTICS Input Offset Voltage vs. Temperature V+/V-=±15V, VICM=0V 700 600 500 400 300 200 100 0 -100 -200 -300 -400 -500 -600 -700 Input Offset Voltage [µV] Input Offset Voltage [µV] Input Offset Voltage vs. Temperature -50 -25 0 25 50 75 100 125 150 Temperature [°C] -50 Input Offset Voltage Distribution Number of Amplifiers Number of Amplifiers 25 50 75 100 125 150 Temperature [°C] V+/V-=±5V, VICM=0V, Ta=25°C 30 N=120pcs 25 20 15 10 5 25 N=120pcs 20 15 10 5 0 0 -400 -300 -200 -100 0 100 200 300 400 -400 -300 -200 -100 0 100 200 300 400 Input Offset Voltage [µV] Input Offset Voltage [µV] Input Offset Voltage Drift Distribution Input Offset Voltage Drift Distribution V+/V-=±15V, VICM=0V, Ta=-40°C to 125°C 60 60 50 50 N=120pcs Number of Amplifiers Number of Amplifiers 0 35 30 40 30 20 V+/V-=±5V, VICM=0V, Ta=-40°C to 125°C N=120pcs 40 30 20 10 10 0 0 -10 -8 -6 -4 -2 0 2 4 6 8 Input Offset Voltage Drift [µV/°C] -6- -25 Input Offset Voltage Distribution V+/V-=±15V, VICM=0V, Ta=25°C 35 V+/V-=±5V, VICM=0V 700 600 500 400 300 200 100 0 -100 -200 -300 -400 -500 -600 -700 10 -10 -8 -6 -4 -2 0 2 4 6 8 Input Offset Voltage Drift [µV/°C] 10 Ver. 01 NJM8502 Supply Voltage Rejection Ratio vs. Temperature Open-loop Gain vs. Temperature VICM=0V, RL=2kΩ V+/V-=±15V, VO=-13.5V to +13.5V Open-loop Gain [dB] 100 80 V+/V-=±4.5V to ±16V, VICM=0V 140 Supply Voltage Rejection Ratio [dB] 120 V+/V-=±5V, VO=-3V to +3V 60 40 20 0 120 100 80 60 40 20 0 -50 -25 0 25 50 75 100 125 150 Temperature [°C] -50 Common-mode Rejection Ratio vs. Temperature 25 50 75 100 125 150 Temperature [°C] VICM=0V 100n V+/V-=±15V, VICM=-12.5V to +12.5V 120 Input Bias Current [A] Common-mode Rejection Ratio [dB] 0 Input Bias Current vs. Temperature 140 100 V+/V-=±5V, VICM=-2V to +2.5V 80 60 40 20 -50 -25 0 V+/V-=±15V 1n V+/V-=±5V 100p 10p -50 25 50 75 100 125 150 Temperature [°C] Input Offset Voltage vs. Common-mode Voltage 600 0 25 50 75 100 125 150 Temperature [°C] V+/V-=±5V, VICM=-2V to +2.5V 800 600 Ta=-40°C Input Offset Voltage [µV] Ta=25°C 400 200 0 -25 Input Offset Voltage vs. Common-mode Voltage V+/V-=±15V, VICM=-12.5V to +12.5V 800 Ta=125°C -200 -400 -600 Ta=-40°C Ta=25°C 400 200 0 Ta=125°C -200 -400 -600 -800 -800 -15 Ver. 01 10n 1p 0 Input Offset Voltage [µV] -25 -10 -5 0 5 10 Input Common-mode Voltage [V] 15 -5 -4 -3 -2 -1 0 1 2 3 4 Input Common-mode Voltage [V] 5 -7- NJM8502 Maximum Output Voltage vs. Load Resistance 15 12.5 4 Maximum Output Voltage [V] 7.5 Ta=25°C 5 Ta=125°C 2.5 0 -2.5 Ta=125°C -5 Ta=25°C -7.5 -10 Ta=-40°C Ta=25°C 3 -15 100 1k 10k Load Resistance [Ω] 2 1 0 -1 Ta=125°C -2 Ta=25°C -3 Ta=-40°C -5 100 100k Maximum Output Voltage vs. Temperature Maximum Output Voltage [V] 4 RL=10kΩ 10 RL=2kΩ RL=600Ω 7.5 5 2.5 0 -2.5 -5 -7.5 RL=2kΩ -10 RL=600Ω RL=10kΩ RL=10kΩ 3 -15 RL=2kΩ RL=600Ω 2 1 0 -1 -2 -3 RL=2kΩ RL=600Ω RL=10kΩ -4 -12.5 -5 -50 -25 0 25 50 75 100 125 150 Temperature [ºC] -50 Quiescent Current vs. Supply Voltage Quiescent Current [mA] Ta=25°C 2.0 Ta=125°C Ta=-40°C 1.5 0 25 50 75 100 125 150 Temperature [ºC] GV=0dB, VICM=0V 3.5 3.0 2.5 -25 Quiescent Current vs. Temperature Gv=0dB, VICM=0V 3.5 Quiescent Current [mA] 100k V+/V-=±5V, VIN+=1V/-1V, VIN-=0V 5 12.5 1.0 0.5 0.0 3.0 V+/V-=±16V V+/V-=±15V 2.5 2.0 V+/V-=±5V V+/V-=±4.5V 1.5 1.0 0 -8- 1k 10k Load Resistance [Ω] Maximum Output Voltage vs. Temperature V+/V-=±15V, VIN+=1V/-1V, VIN-=0V 15 Ta=-40°C Ta=125°C -4 -12.5 Maximum Output Voltage [V] V+/V-=±5V, VIN+=1V/-1V, VIN-=0V 5 Ta=-40°C 10 Maximum Output Voltage [V] Maximum Output Voltage vs. Load Resistance V+/V-=±15V, VIN+=1V/-1V, VIN-=0V 2 4 6 8 10 12 Supply Voltage V+/V-[V] 14 16 -50 -25 0 25 50 75 100 125 150 Temperature [°C] Ver. 01 NJM8502 Gain/Phase vs. Frequency V+/V-=±5V, RF=100kΩ, RG=1kΩ, RL=2kΩ, Ta=25ºC 180 60 120 40 Voltage Gain [dB] 20 60 CL=1000pF Phase 0 CL=10pF CL=100pF -20 -60 CL=10pF CL=100pF -40 0 Voltage Gain [dB] Gain 40 Phase [deg] Gain 120 20 60 CL=1000pF Phase 0 CL=10pF CL=100pF -20 -120 -40 -180 100M -60 10k 100k 1M Frequency [Hz] CL=100pF -120 CL=1000pF 10M 1k 10k 100k 1M Frequency [Hz] 10M -180 100M Small-Signal Step Response (Road Capacitance) Small-Signal Step Response (Temperature) V+/V-=±15V, Gv=0dB, VIN=1VPP, RL=2kΩ, Ta=25ºC V+/V-=±15V, Gv=0dB, VIN=1VPP, RL=2kΩ, CL=10pF INPUT INPUT 0.2V/div 0.2V/div 0 -60 CL=10pF CL=1000pF -60 1k 180 Phase [deg] 60 Gain/Phase vs. Frequency V+/V-=±15V, RF=100kΩ, RG=1kΩ, RL=2kΩ, Ta=25ºC 1000pF -40ºC 125ºC 10pF OUTPUT 100pF 25ºC 300pF 0.1µsec/div 0.1µsec/div Large Signal Step Response CMR vs. Frequency Common Mode Rejection Ratio [dB] V+/V-=±15V, Gv=0dB, VIN=10Vpp, RL=2kΩ 2V/div INPUT OUTPUT 1µsec/div Ver. 01 OUTPUT Gv=60dB, Ta=25°C 140 120 V+/V-=±15V 100 80 V+/V-=±5V 60 40 20 0 -20 100 1k 10k 100k Frequency [Hz] 1M 10M -9- NJM8502 Input Voltage Noise Density vs. Frequency V+/V-=±15V, Gv=40dB, Ta=25ºC 140 120 100 -SVR 80 60 40 +SVR 20 0 -20 100 Gv=40dB, RG=100Ω, RL=10kΩ, Ta=25°C 100 Input Voltage Noise Density [nV/√Hz] Supply Voltage Rejection Ratio [dB] Supply Voltage Rejection Ratio vs. Frequency 90 80 70 60 50 V+/V-=±5V 40 30 20 10 V+/V-=±15V 0 1k 10k 100k Frequency [Hz] 1M 10M 1 10 100 Frequency [Hz] 1k 10k 1Hz to 100Hz Input Voltage Noise V+/V-=±15V, 1 to 100Hz BPF 2.0 1.5 Voltage [µV] 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 0 1 2 3 4 5 6 time [sec] 7 8 9 10 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. - 10 - Ver. 01