NJM2739 Dual Precision Operational Amplifier ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE ●Precision VIO=60µV max. VIO=100µV max. (Ta=-40ºC to +85ºC) ●Low Offset Drift ΔVIO/ΔT=0.9µV/ºC max. (Ta=-40ºC to +85ºC) ●Specified for ±15V and ±5V operation ●CMR 128dB min. ●Low Noise VNI=80nVrms typ. at f=1 to 100Hz en=8nV/√Hz typ. at f=100Hz NJM2739E Av=130dB min. ●Open Loop Gain ●Guaranteed Temperature Ta=-40ºC to +85ºC ●Unity Gain Stable ●Operating Voltage Vopr=±3V to ±18V ●Unity Gain Frequency fT=1.1MHz typ. ●Supply Current Icc=3.2mA max. ●Package EMP8 ■ FEATURES The NJM2739 is a high performance operational amplifier featured very low offset voltage and drift. Features are low offset voltage and drift, hi common mode rejection, low noise and open loop gain. DC characteristics are100% tested and specified from −40ºC to 85ºC. The NJM2739 is suitable for high gain circuit amplified small signal and sets required stable behavior over a wide temperature range. ■ APPRICATION ●Thermocouple sensor ●Bridge Amplifier ●Current Sensor ●Instrumentation Amplifier ●Reference Voltage Circuit ■ PIN CONFIGURATION ■ PACKAGE DESCRIPTION 5.0±0.3 1 −INPUT A 2 +INPUT A 3 V− 4 A B 8 V+ 7 OUTPUT B 6 −INPUT B 5 +INPUT B 3.9±0.2 OUTPUT 5 8 6.0±0.4 (Top View) 4 1 1.27 0.74MAX E1 -1- NJM2739 ■ ABSOLUTE MAXIMUM RATING (Ta=25ºC Unless Otherwise Specified) PARAMETER SYMBOL RATING Supply Voltage V+/V±20 Common Mode Input Voltage Range (Note1) VICM ±20 Differential Input Voltage Range VID ±30 Power Dissipation (Note2) PD 640 Operating Temperature Range Topr -40~+85 Storage Temperature Range Tstg -50~+125 (Note1) For supply voltage less than ±20V, the maximum input voltage is equal to the supply voltage. (Note2) Mounted on the EIA/JEDEC standard board (114.3×76.2×1.6mm, two layer, FR-4). UNIT V V V mW ºC ºC ■ RECOMMENDED OPERATING VOLTAGE PARAMETER Supply Voltage SYMBOL V+/V- TEST CONDITION MIN. ±3 TYP. - MAX. ±18 UNIT V ■ ELECTRONIC CHARACTERISTICS (V+/V-=±15V Ta=+25ºC, VCM=0V unless otherwise specified) ● DC CHARACTERISTICS PARAMETER Input Characteristics Input Offset Voltage SYMBOL VIO1 VIO2 Input Offset Voltage Drift ΔVio/ΔT Common Mode Input Voltage Range VICM1 VICM1 Common Mode Rejection Ratio CMR1 CMR2 Supply Voltage Rejection Ratio SVR1 SVR2 Input Bias Current IB1 IB2 Input Bias Current Drift ΔIB/ΔT Input Offset Current IIO1 IIO2 Input Offset Current Drift ΔIIO/ΔT Differential Input Impedance RID Common-Mode Input Impedance RIC Voltage Gain Av1 Av2 Channel Separation Output Characteristics Maximum Output Voltage Output Resistance Supply Characteristics Supply Current CS TEST CONDITION Ta=-40ºC ~+85ºC Ta=-40ºC→+25ºC / Ta=+25ºC→+85ºC Ta=-40ºC ~+85ºC VCM=0V→-13V / VCM=0V→+13V Ta=-40ºC ~+85ºC, VCM=0V→-13V / VCM=0V→+13V V+/V-=±3V~±18V Ta=-40ºC ~+85ºC, V+/V-=±3V~±18V Ta=-40ºC ~+85ºC Ta=-40ºC→+85ºC Ta=-40ºC ~+85ºC Ta=-40ºC→+85ºC *1 *1 RL=2kΩ, Vo= -10V→0V / 0V→+10V / -10V→+10V Ta=-40ºC ~+85ºC, RL=2kΩ, Vo= -10V→0V / 0V→+10V / -10V→+10V DC VOM1 VOM2 VOM3 VOM4 VOM5 RO RL=10kΩ Ta=-40ºC ~+85ºC, RL=10kΩ RL=2kΩ Ta=-40ºC ~+85ºC, RL=2kΩ RL=1kΩ Open-Loop ICC1 ICC2 ICC3 PD1 PD1 AV=+1, RL=∞ Ta=-40ºC ~+85ºC, AV=+1, RL=∞ V+/V-=±3V, AV=+1, RL=∞ AV=+1, RL=∞ V+/V-=±3V, AV=+1, RL=∞ MIN. TYP. MAX. UNIT ±13 ±13 128 120 115 110 -0.2 -1.5 130 20 20 0.3 ±14 ±13.5 135 130 125 120 1.2 1.7 8 0.3 0.3 1.5 90 800 142 60 100 0.9 2.8 6 60 2.8 4.5 72 - μV μV μV/ºC V dB dB dB dB dB nA nA pA/ºC nA nA pA/ºC MΩ GΩ dB 126 136 - dB - 0.01 - μV/V ±13.5 ±13.0 ±12.5 ±12.0 ±12.0 - ±14.0 ±14.0 ±13.0 ±13.0 ±12.5 60 - V V V V V Ω - 2.6 2.7 1.3 78 81 3.2 3.4 1.6 96 102 mA mA mA mW mW *1 Theoretical value by design -2- E1 NJM2739 ● AC CHARACTERISTICS PARAMETER Frequency Characteristics Unity Gain Frequency Slew Rate Noise Characteristics Equivalent Input Noise Voltage Equivalent Input Noise Current SYMBOL fT +SR -SR VNI INI TEST CONDITION AV=+100, RL=2kΩ, CL=10pF RISE, AV=+1, VIN=1Vpp, RL=2kΩ FALL, AV=+1, VIN=1Vpp, RL=2kΩ fo=1Hz~100Hz fo=1Hz~100Hz MIN. TYP. MAX. UNIT 0.1 0.1 1.1 0.3 0.3 - MHz V/μS V/μS - 80 3 - nVrms pArms ■ ELECTRONIC CHARACTERISTICS (V+/V-=±5V Ta=+25ºC, VCM=0V unless otherwise specified) PARAMETER Input Characteristics Input Offset Voltage SYMBOL VIO1 VIO2 Common Mode Input Voltage Range VICM1 VICM1 Common Mode Rejection Ratio CMR1 CMR2 Input Bias Current IB1 IB2 Input Offset Current IIO1 IIO2 Voltage Gain Av1 Av2 Channel Separation Output Characteristics Maximum Output Voltage Supply Characteristics Supply Current E1 CS TEST CONDITION Ta=-40ºC ~+85ºC Ta=-40ºC ~+85ºC VCM=0V→-3V / VCM=0V→+3V Ta=-40ºC ~+85ºC, VCM=0V→-3V / VCM=0V→+3V Ta=-40ºC ~+85ºC Ta=-40ºC ~+85ºC RL=2kΩ, Vo= -3V→0V / 0V→+3V / -3V→+3V Ta=-40ºC ~+85ºC, RL=2kΩ, Vo= -3V→0V / 0V→+3V / -3V→+3V DC VOM1 VOM2 VOM3 VOM4 RL=10kΩ Ta=-40ºC ~+85ºC, RL=10kΩ RL=2kΩ Ta=-40ºC ~+85ºC, RL=2kΩ ICC1 ICC2 AV=+1, RL=∞ Ta=-40ºC ~+85ºC, AV=+1, RL=∞ MIN. TYP. MAX. UNIT ±3 ±3 115 105 -0.2 -0.2 115 30 35 ±3.9 ±3.5 125 118 0.7 1.0 0.3 0.3 130 70 110 2.0 6.0 2.8 4.5 - μV μV V dB dB dB nA nA nA nA dB 110 125 - dB - 0.01 - μV/V ±3.5 ±3.5 ±3.5 ±3.5 ±4.0 ±4.0 ±4.0 ±4.0 - V V V V - 1.6 1.7 2.0 2.1 mA mA -3- NJM2739 ● EXPLANATION OF MEASUREMENT CONDITION PARAMETER Input Offset Voltage Drift Explanation Input Offset Voltage Drift = ΔVIO / Δt Δt : Amount of Temperature change. ΔVIO : Amount of Input Offset Voltage. Common Mode Input Voltage range A range of input voltage at which the operational amplifier can function. Common Mode Rejection Ratio CMR = 20log | ( ΔVIN / ΔVIO )| ΔVIN : Amount of Input Voltage. ΔVIO : Amount of Input Offset Voltage. Supply Voltage Rejection Ratio SVR = 20log |( ΔVS / ΔVIO )| ΔVS : Amount of supply Voltage. ΔVIO : Amount of Input Offset Voltage. Common Mode Input Impedance RINCM = ΔVIN / ΔIB ΔVIN : Amount of Input Voltage. ΔIB : Amount of Input bias current. Voltage Gain AV = 20log |( ΔVIN / ΔVO )| ΔVO : Amount of output Voltage. ΔVIN : Amount of Input Voltage. -4- E1 NJM2739 ■ TYPICAL CHARACTERISTICS Input Offset Voltag e Distribution + Input Offset Voltag e Distribution - V /V =±15V,Ta=25℃ 50 40 Number Of Am plifiers Number Of Am plifiers 40 30 20 10 20 10 0 -70-60-50-40-30-20-10 0 10 20 30 40 50 60 70 Input Offset Voltag e Drift Distribution Input Offset Voltag e Drift Distribution 30 Input Offset Voltag e [μV] - V /V =±15V,Ta=-40 to 25℃ 40 Num ber Of Am plifiers 20 15 10 5 30 25 20 15 10 5 0 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 Input Offset Voltag e Drift [μV/℃] 0 1 + 0.2 0.4 0.6 0.8 1 Input Offset Volotag e Drift Distribution + - V /V =±5V,Ta=-40 to 25℃ 40 35 35 30 30 Number Of Am plifiers Number Of Am plifiers -1 -0.8 -0.6 -0.4 -0.2 0 Input Offset Voltag e Drift [μV/℃] Input Offset Voltag e Drift Distribution 40 V + /V -=±15V,Ta=25 to 85℃ 35 25 Number Of Am plifiers 30 0 -70-60-50-40-30-20-10 0 10 20 30 40 50 60 70 Input Offset Voltag e [μV] + 25 20 15 10 - V /V =±5V,Ta=25 to 85℃ 25 20 15 10 5 5 0 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 Input Offset Voltag e Drift [μV/℃] E1 V + /V -=±5V,Ta=25℃ 50 1 0 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Input Offset Voltag e Drift [μV/℃] -5- NJM2739 ■ TYPICAL CHARACTERISTICS Input Offset Voltage vs. Temperature 100 V+/V-=±5V, VCM=0V 100 80 80 60 60 Input Offset Voltage [μV] Input Offset Voltage [μV] Input Offset Voltage vs. Temperature V+/V-=±15V, VCM=0V 40 20 0 -20 -40 -60 40 20 0 -20 -40 -60 -80 -80 -100 -100 -50 -25 0 25 50 75 Ambient Temperature [ºC] 100 -50 -25 0 25 50 75 Ambient Temperature [ºC] Input Offset Voltag e vs. Tem pera ture Input Offset Voltag e vs. Tem pera ture (Supply Voltage) V CM =0V (Supply Voltage) V CM =0V 100 100 100 Sample1 (±5V) Sample3 (±5V) 0 Sam ple1 (±15V) Sample2 (±15V) Sample3 (±15V) -50 -100 -50 -25 0 25 50 75 100 125 V + /V -=±3V 50 Input Offset Voltg e [μV] Input Offset Voltag e [μV] Sam ple2 (±5V) 50 0 V + /V -=±15V -100 -50 -25 50 75 100 125 V CM =0V 4 3 Input Bias Current [nA] Input Offset Voltg e [μV] 25 Input Bias Curent vs. Supply Voltag e V CM =0V 40 Sam ple1 30 Sam ple2 20 10 0 Sam ple3 0 4 8 12 16 Supply Voltag e [±V] -6- 0 Am bient Tem perature [℃] Input Offset Voltag e vs. Supply Voltag e -10 V + /V -=±18V -50 Am bient Tem perature [℃] 50 V + /V -=±5V 20 24 2 Sam ple2 Sam ple1 1 0 -1 Sample3 0 4 8 12 16 20 24 Supply Voltag e [±V] E1 NJM2739 ■ TYPICAL CHARACTERISTICS Input Offset Voltag e vs. Com m on M ode Input Voltage 8 60 6 50 Input Offset Voltag e [μV] Variation in Input Offset Voltage [µV] Variation in Input Offset Voltage vs. Common Mode Input Voltage 4 2 0 -2 -4 (Supply Volta ge) Ta=25℃ Sa mple1 (±5V) 40 Sa m ple2 (±5V) 30 20 10 0 Sam ple2 (±15V) -10 -6 -10 -5 0 5 10 Sam ple3 (±15V) -20 -15 -8 -15 15 10 15 + - V /V =±15V 60 Input offset Voltag e [μV] Input Offset Voltag e [μV] 5 50 40 30 V+/V-=±3V 20 V+/V-=±5V 10 0 V+/V-=±15V V+/V-=±18V -10 -20 -20 -15 -10 -5 0 5 10 40 30 Ta=25℃ 10 0 Ta=-40℃ -10 15 Common Mode Input Voltage [V] -20 -15 20 + Input Offset Voltag e Chang e [μV] Ta=85℃ 20 10 Ta=-40℃ 4 8 12 16 Supply Voltag e [±V] 20 0 5 10 15 24 - V /V =±15V, G v=100dB, Ta =25℃ 4 Ta=25℃ 0 -5 W arm Up Input Offset Voltag e Drift 40 30 -10 Comm on M ode Input Voltag e [V] (Tem perature) Vcm =0V 50 Ta=85℃ 20 Input Offset Voltag e vs. Supply Voltag e Input offset Voltag e [μV] 0 (Tem perature) (Supply Voltage) Ta=25℃ 50 E1 -5 Input Offset Voltag e vs. Com m on M ode Input Voltag e Input Offset Voltag e vs. Com m on M ode Input Voltag e 0 -10 Comm on Mode Input Voltag e [V] Common Mode Input Voltage [V] 60 Sa mple3 (±5V) Sam ple1 (±15V) 3 2 1 0 -1 0 50 100 150 200 Tim e From Power Supply Turn On [sec] -7- NJM2739 ■ TYPICAL CHARACTERISTICS Input Offset Voltage vs. O utput Voltage + Equivalent Input Noise Voltage - V /V =±15V, Gv=100dB, R L=2kΩ, Ta=25℃ Input Offset Voltag e [uV] -13 -13.5 -14 -14.5 -15 -15.5 -16 -16.5 -15 -10 -5 0 5 10 Rf=10kΩ, Rs=100Ω, Rg=100Ω, Ta=25℃ 16 E quivalent Input Noise Voltag e [nV/√Hz] -12.5 15 14 12 V + /V -=±5V 10 8 V+ /V -=±15V 6 4 2 0 1 10 E quivalent Input Noise Voltag e + E quivalent Input Noise Voltag e [μV] E quivalent Input Noise Voltag te [μV] 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 2 4 6 8 10 Tim e [sec] 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 0 3.5 Ta= 25℃ Ta = -40℃ 1 0.5 0.5 4 8 12 16 Supply Voltag e [±V] -8- 10 3 Ta = 85℃ 0 8 V + /V -=±18V ] A m [ 2.5 t n er r u 2 C y pl 1.5 p u S 1 0 6 (Supply Voltag e) R L =∞ 4 3.5 3 4 Supply Current vs. Tem perature R L= ∞ ] A m [ 2.5 t n er r u 2 C y pl 1.5 p u S 2 Tim e [sec] Supply Current vs. Supply Voltag e (Tem perature) 4 - V /V =±5V, BP=1~ 100Hz 0.8 0.8 0 1000 Equivalent Input Noise Voltag e V + /V -=±15V, BP=1~ 100Hz -0.8 100 Frequency [Hz] Output Voltag e [V] 20 24 0 -50 V + /V -=±15V V + /V -=±5V V + /V -=±3V -25 0 25 50 75 100 125 Am bient Tem perature [℃] E1 NJM2739 ■ TYPICAL CHARACTERISTICS Input Bias Current vs. Tem perature Input Bias Current vs. Tem perature (Supply Volta ge) V CM =0V 10 8 Sam ple1 (±15V) Sam ple2 (±15V) Sam ple3 (±15V) 6 Input Bias Current [nA] Input Bias Current [nA] 8 Sample1 (±5V) Sam ple2 (±5V) Sam ple3 (±5V) 4 2 0 -50 (Supply Voltage) V CM =0V 10 -25 0 25 50 75 100 V + /V -=±18V 6 + V /V =±15V V + /V -=±5V V + /V -=±3V 4 2 0 -50 125 -25 Am bient Tem perature [℃] V + /V -=±15V 2 Input Bias Current [nA] Input Bias Current [nA] Ta=25℃ 1 0.5 Ta=85℃ -0.5 -1 -15 75 100 125 2.5 2 0 50 (Supply Volta ge) Ta=25℃ 3 Ta=-40℃ 1.5 25 Input Bias Current vs. Comm on Mode Input Voltag e (Tem perature) 2.5 0 Am bient Tem perature [℃] Input Bias Current vs. Com mon Mode Input Voltag e 3 - V + /V -=±18V V + /V -=±15V 1.5 1 0.5 V + /V -=±3V V + /V -=±5V 0 -0.5 -10 -5 0 5 10 -1 -20 15 -15 -10 -5 0 5 10 15 Comm on Mode Input Voltag e [V] Comm on Mode Input Voltag e [V] Input Offset Current vs. Temperature Input Offset Current vs. Temperature (Supply Volta ge) V CM =0V 5 20 (Supply Volta ge) V CM =0V 6 Input Offset Current [nA] Input Offset Current [nA] 5 4 Sam ple1 (±15V) Sam ple2 (±15V) Sam ple3 (±15V) 3 Sample1 (±5V) Sam ple2 (±5V) Sam ple3 (±5V) 2 1 4 V + /V -=±18V + - V /V =±15V 3 V + /V -=±5V 2 V + /V -=±3V 1 0 0 -50 -25 0 25 50 75 Am bient Tem perature [℃] E1 100 125 -1 -50 -25 0 25 50 75 100 125 Am bient Tem perature [℃] -9- NJM2739 ■ TYPICAL CHARACTERISTICS Input Offset Current vs. Com m on M ode Input Voltag e Input Offset Current vs. Com mon Mode Input Voltage (Tem perature) V + /V -=±15V 2 1.5 1.5 1 Ta=85℃ Ta=25℃ Input Offset Current [nA] Input Offset Current [nA] (Supply Voltag e) Ta=25℃ 2 Ta=-40℃ 0.5 0 -0.5 -1 -1.5 1 V + /V -=±15V 0.5 V + /V -=±3V 0 -0.5 V + /V -=±18V V + /V -=±5V -1 -1.5 -2 -15 -10 -5 0 5 10 -2 -20 15 Comm on Mode Input Voltag e [V] -15 -10 -5 0 5 10 15 20 Com mon M ode Input Voltage [V] C om m on M od e R ejection R a tio vs. Te m p e ra tu re C om m on M od e R e jection R a tio vs. F req u e ncy (S up ply V olta g e) - + V + /V -= ±15 V V + /V -= ±18 V V + /V -= ±5V 150 100 V + /V -= ±3V 50 0 -50 -25 0 25 50 75 100 - V /V = ±15 V, G v= 80 dB, Ta = 25 ℃ 140 Com mon Mode Rejection R atio [dB] 200 Com mon Mode Rejection R atio [dB] + V IC M = V + 2V to V -2V 120 100 80 60 40 2 10 125 10 Am bie nt Tem p e ra ture [℃ ] V /V =±14.5 to ±15.5V, G v=80dB, Ta=25℃ 200 120 100 -SVR 80 60 +SVR 40 20 0 10 1 10 2 10 Frequency [Hz] - 10 - 4 10 5 V + /V -=±18V to ±3V - Supply Voltage Rejection R atio [dB] Supply Voltag e Rejection R atio [dB] 140 10 Supply Voltage Rejection Ratio vs. Tem perature Supply Voltag e Rejection R atio vs. Frequency + 3 F re q ue n cy [H z] 3 10 4 10 150 100 50 0 -50 -25 0 25 50 75 100 125 Tem perature [℃] E1 NJM2739 ■ TYPICAL CHARACTERISTICS Voltag e Gain vs. Temperature Voltag e G ain vs. Supply Voltag e (Supply Voltage) R L =2kΩ (Temperature) R L=2kΩ 200 + 160 - V /V =±18V V + /V -=±15V 150 150 Ta=-40℃ V + /V -=±3V V + /V -=±5V 100 Voltage G ain [dB] Voltag e G ain [dB] Ta=85℃ Ta=25℃ 50 140 130 120 110 0 -50 -25 0 25 75 100 8 12 16 20 24 M axim um Output Voltag e vs. Load R esista nce (Tempera ture) (Supply Volta ge) Ta=25℃ + - V /V =±15V 20 15 Maxim um Output Voltag e [V] Ta=-40℃ 5 Ta=25℃ Ta=85℃ 0 Ta=85℃ Ta=25℃ -5 Ta=-40℃ -10 2 10 10 3 4 10 10 10 5 V + /V -=±18V V + /V -=±15V + - V /V =±5V V + /V -=±3V 0 -5 -10 -15 V + /V -=±3V V + /V -=±5V V + /V -=±15V V + /V -=±18V -20 1 10 5 2 3 10 4 10 10 10 Load R esista nce [Ω] Load R esistance [Ω] Output Voltag e vs. Output Current M axim um output Voltag e vs. Tem perature 5 (Supply Voltage) R L=2kΩ V + /V -=±15V 15 20 15 M axim um output Voltag e [V] 10 +V OM Ta=-40℃ Output Current [V] 4 M axim um Output Voltag e vs. Load Resistance -15 1 10 +V OM Ta=25℃ 5 +V OM Ta=85℃ 0 -V OM Ta=-40℃ -5 -V OM Ta=25℃ -V OM Ta=85℃ -10 10 V + /V -=±18V V + /V -=±5V 5 V + /V -=±15V V + /V -=±3V 0 -5 V + /V -=±5V V + /V -=±3V V + /V -=±18V -10 V + /V -=±15V -15 0 5 10 15 20 25 Output Current [m A] E1 0 Supply Voltag e [±V] 10 -15 100 125 Am bient Tem perature [℃] 15 M axim um output Voltage [V] 50 30 35 40 -20 -50 -25 0 25 50 75 100 125 Am bient Tem perature [Ω] - 11 - NJM2739 ■ TYPICAL CHARACTERISTICS THD+N vs. Frequency THD+N vs. Output Voltag e + V /V =±15V, G v=20dB, R F =10kΩ, Rs=1kΩ, Ta=25℃ 10 V + /V -=±15V, G v=20dB, R F =10kΩ, R s=1kΩ, Vout=100m Vrm s, Ta=25℃ - 1 0.8 1 THD+N [% ] THD+N [% ] f=20kHz 0.1 f=1kHz 0.01 0.6 0.4 0.2 0.001 f=100Hz f=20Hz 0.0001 0.01 0.1 1 0 10 10 100 G v=40dB, R F =10kΩ, R s=100Ω, R T=50Ω, Ta=25℃ 120 60 - V /V =±3V Phase 0 0 -60 + - V /V =±18V V + /V -=±15V V + /V -=±5V -20 -40 2 10 3 10 4 10 V + /V -=±3V 10 5 6 10 Voltag e G ain [dB] 60 V + /V -=±5V + 20 80 V + /V -=±15V Gain 10 40 20 V + /V -=±15V, G v=40dB, R F =10kΩ, R s=100Ω, R T=50Ω Gain 0 -60 0 Ta=-40℃ Ta=25℃ Ta=85℃ -20 -180 -40 2 10 7 60 Phase -120 10 120 10 3 4 10 5 10 -120 6 10 -180 7 10 Frequency [Hz] 40dB G ain/Phase vs. Frequency (Load Capacitance) 40dB G ain/Phase vs. Frequency (Tem perature) V + /V -=±15V, G v=40dB, R F =10kΩ, R s=100Ω, R T=50Ω, Ta=25℃ V + /V -=±5V, G v=40dB, R F =10kΩ, R s=100Ω, R T=50Ω C L=0.2μF 60 60 60 C L=0.01μF C L=0F 0 -60 C L=0.2μF C L=0.1μF C L=0.047μF C L=0.01μF C L=0F -20 -40 10 2 3 10 10 4 5 10 Frequency [Hz] -120 10 120 6 -180 7 10 40 20 gain Ta=25℃ Ta=85℃ 60 Phase 0 0 -60 Ta=-40℃ Ta=25℃ Ta=85℃ -20 -40 2 10 3 10 4 10 5 10 Phase [deg ] C L=0.047μF Phase 180 Ta=-40℃ 0 - 12 - 120 C L=0.1μF Gain 20 80 Phase [deg ] 40 180 Voltag e G ain [dB] 80 6 180 Ta=-40℃ Ta=25℃ Ta=85℃ Frequency [Hz] Voltag e G ain [dB] 5 Phase [deg ] Voltag e Gain [dB] V + /V -=±18V 180 Phase [deg ] 40 10 40dB Gain/Phase vs. Frequency (Tem perature) 40dB Gain/Phase vs. Frequency (Supply Voltage) 60 10 Frequency [Hz] Output Voltag e [Vrm s] 80 4 1000 -120 10 6 -180 7 10 Frequency [Hz] E1 NJM2739 ■ TYPICAL CHARACTERISTICS 20 15 + - V /V =±15V, G v=0dB, R T=50Ω, C L=0.1μF 20 15 V + /V -=±18V Ta=85℃ V + /V -=±15V 10 Voltag e G ain [dB] Voltag e G ain [dB] V.F.Peak (Tem perature) V.F. Peak (Supply Voltage) G v=0dB, R T=50Ω, C L=0.1μF, Ta =25℃ V + /V -=±5V + - V /V =±3V 5 0 -5 10 Ta=25℃ Ta=-40℃ 5 0 -5 -10 3 10 4 5 10 -10 3 10 6 10 10 4 5 10 Frequency [Hz] 6 10 10 Frequency [Hz] V.F.Peak (Load Capa citance) + - V /V =±15V, G v=0dB, R T =50Ω, Ta=25℃ 20 C L=0.2μF Voltag e G ain [dB] 15 C L =0.1μF 10 C L=0.047μF C L=0.01μF 5 C L =0F 0 -5 -10 3 10 10 4 10 5 6 10 Frequency [Hz] Pulse R esponse (Tem perature) + Pulse R esponse (Tem perature) - V /V =±15V, R L=2kΩ, C L =5pF 2 0.8 V + /V -=±15V, R L=2kΩ, C L =5pF 2 0.8 0.4 1.6 0.4 1.2 0 1.2 0 -0.4 Ta=85℃ 0.4 -0.8 Ta=25℃ 0 0.8 -0.4 Output Ta=-40℃ Ta=25℃ Ta=85℃ 0.4 -1.2 0 -1.6 -0.4 -2 -0.8 -0.8 Input [V] Input 0.8 Output [V] 1.6 Input [V] Output [V] Input -1.2 Ta=-40℃ -0.4 -0.8 Output -2 -1 0 1 2 3 Tim e [μs] E1 4 5 6 -1.6 -2 -1 0 1 2 3 4 5 6 -2 Tim e [μs] - 13 - NJM2739 ■ TYPICAL CHARACTERISTICS Pulse R esponse (Temperature) Pulse R esponse (Tem perature) V + /V -=±5V, R L=2kΩ, C L =5pF 2 V + /V -=±5V, R L =2kΩ, C L =5pF 2 0.8 0.8 0.4 1.6 0.4 1.2 0 1.2 0 -0.4 Ta=85℃ 0.4 -0.8 Ta=25℃ 0 -0.4 -0.8 Ta=-40℃ Output -2 -1 0 1 2 3 4 5 6 -0.4 0.8 Output Ta=-40℃ Ta=25℃ Ta=85℃ 0.4 -1.2 0 -1.6 -0.4 -2 -0.8 Tim e [μs] -0.8 Input [V] Input 0.8 Output [V] 1.6 Input [V] Output [V] Input -1.2 -1.6 -2 -1 0 1 2 3 4 5 6 -2 Tim e [μs] Pulse R esponse Pulse R esponse (Supply Voltage, Load Capacitance) R L=2kΩ, Ta=25℃ (Supply Voltage, Loa d Capacitance) R L =2kΩ, Ta=25℃ 2 0.8 2 0.8 Input 1.6 1.2 -0.8 V + /V -=±5V C L =1500pF -5 0 0 5 10 Output [V] 0.8 -0.4 Output V + /V -=±5V C L=1500pF 0.4 -1.2 0 -1.6 -0.4 -2 -0.8 V + /V -=±15V C L=1500pF + -1.6 V + /V -=±15V C L =100pF -5 0 5 10 -2 Tim e [μs] Pulse R esponse (Load Capacitance) Pulse R esponse (Load Capacitance) - V /V =±15V, R L=2kΩ, Ta =25℃ 2 -1.2 - V /V =±5V C L=100pF Tim e [μs] + -0.8 Input [V] V + /V -=±5V C L =100pF Output 1.2 -0.8 0 -0.4 0 -0.4 V + /V -=±15V C L=1500pF 0.4 0.4 - V /V =±15V C L =100pF Input 0.8 1.6 Input [V] Output [V] + 0.4 0.8 V + /V -=±15V, R L=2kΩ, Ta=25℃ 2 0.8 Input 0.8 Input 1.6 0.4 0 1.2 0 0.8 -0.4 -0.4 0.4 -0.8 0 -1.2 0 -1.6 -0.4 Output -0.4 0.4 C L=0.1μF C L=0.047μF Output -0.8 C L=0.2μF Input [V] Output [V] 1.2 0.4 Input [V] C L=0.01μF C L=0.047μF C L=0.1μF C L=0.2μF Output [V] 1.6 -1.2 -1.6 C L=0.01μF -0.8 -20 -10 0 10 20 30 Tim e [μs] - 14 - 40 50 60 -2 -0.8 -20 -10 0 10 20 30 40 50 60 -2 Tim e [μs] E1 NJM2739 ■ TYPICAL CHARACTERISTICS Slew R ate vs. Tem perature Unity Gain Frequency vs. Tem perature R L =2kΩ 2 U nity G ain Frequency [M Hz] 1 Slew R ate [V/μs] 0.8 0.6 V + /V -=±15V RISE V + /V -=±15V FALL 0.4 0.2 0 -50 + V + /V -=±5V FALL -25 0 50 75 Am bient Tem perature [℃] E1 1.5 + - V /V =±15V 1 V + /V -=±5V 0.5 - V /V =±5V RISE 25 G v=40dB, R F =10kΩ, R s=100Ω, R T=50Ω 100 125 0 -50 -25 0 25 50 75 100 125 Tem perature [℃] - 15 - NJM2739 ■ Application Information ●Power Supply Bypassing The NJM2739 is a high precision operational amplifier featuring low offset voltage, high voltage gain, high CMR, high SVR and so on. To maximize such a high performance with stable operation, the NJM2739 should be operated by clean and low impedance supply voltage. So, the bypass capacitor should be connected to the NJM2739’s both power supply terminals (V+ and V-) as shown in Fig.1. The bypass capacitors should be placed as close as possible to IC package V+ 2 − 7 NJM2739 + 3 6 4 V- Fig.1 Power Supply Bypassing Circuit ●Thermoelectric Effect The NJM2739 is a high precision operational amplifier featuring low offset voltage and low offset voltage thermal drift. To achieve such a high performance, take care about thermoelectric effect possibly occurs on each input terminal of the NJM2739. Generally, if there are thermal mismatches at the junction of different types of metals, the thermoelectric voltage (Seebeck effect) occurs at the junction. The thermoelectric voltages possibly occur at the junction of PCB metal patterns and NJM2739’s each input terminal metal. If there is thermal mismatch in-between NJM2739’s each input terminal metal, the thermoelectric voltages generated on each input terminal possibly have different voltage each. This voltage difference causes offset voltage and offset voltage thermal drift of the NJM2739. To minimize this voltage difference, the thermal mismatch in-between NJM2739’s each input terminal and PCB metal should be minimized. ●Differential Amplifier Differential amplifier (see below Fig.2) is used in high accuracy circuit to improve common mode rejection ratio (CMR). A matching between the ratio R1/R2 = R3/R4 and R1=R3 makes the high CMR. For example, acceptable error range to obtain CMR of 130dB or more is about 0.1ppm. R2 V+ R1 2 − 7 NJM2739 R3 3 R4 + 6 4 V- Fig.2 Differential Amplifier - 16 - E1 NJM2739 [CAUTION] The specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this data book 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. E1 - 17 -