NJM2739 Dual Precision Operational Amplifier FEATURES Precision PACKAGE OUTLINE VIO=60V max. VIO=100V max. (Ta=-40C to +85C) Low Offset Drift VIO/T=0.9V/C max. (Ta=-40C to +85C) 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 Av=130dB min. Open Loop Gain Guaranteed Temperature Ta=-40C to +85C Unity Gain Stable Operating Voltage Vopr=3V to 18V Unity Gain Frequency fT=1.1MHz typ. Supply Current Icc=3.2mA max. Package SOP8 JEDEC 150mil NJM2739E ( SOP8 ) GENERAL DESCRIPTION The NJM2739 is a high performance operational amplifier features very low offset voltage and drift. Features are low offset voltage and drift, high common mode rejection, low noise and open loop gain. DC characteristics are100% tested and specified from -40C to 85C. The NJM2739 is suitable for high gain circuit amplified small signal and electronic devices required stable behavior over a wide temperature range. APPRICATION Thermocouple sensor Bridge Amplifier Current Sensor Instrumentation Amplifier Reference Voltage Circuit PIN CONFIGURATION PACKAGE DESCRIPTION 5.00.3 (Top View) 1 -INPUT A 2 +INPUT A 3 V- 4 A B 8 V+ 7 OUTPUT B 6 -INPUT B 5 +INPUT B 3.90.2 OUTPUT 6.00.4 5 8 4 1 1.27 0.74MAX SOP8 E1.3 MEET JEDEC MS-012-AA -1- NJM2739 ABSOLUTE MAXIMUM RATING (Ta=25C Unless Otherwise Specified) PARAMETER SYMBOL RATING Supply Voltage V+/V20 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 (114.3x76.2x1.6mm, two layer, FR-4). UNIT V V V mW C C RECOMMENDED OPERATING VOLTAGE PARAMETER Supply Voltage SYMBOL V+/V- TEST CONDITION MIN. 3 TYP. - MAX. 18 UNIT V ELECTRONIC CHARACTERISTICS (V+/V-=15V Ta=+25C, VCM=0V unless otherwise specified) DC CHARACTERISTICS PARAMETER Input Characteristics Input Offset Voltage SYMBOL VIO1 VIO2 Input Offset Voltage Drift Vio/T 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 IB/T Input Offset Current IIO1 IIO2 Input Offset Current Drift IIO/T 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=-40C ~+85C Ta=-40C+25C / Ta=+25C+85C Ta=-40C ~+85C VCM=0V-13V / VCM=0V+13V Ta=-40C ~+85C, VCM=0V-13V / VCM=0V+13V V+/V-=3V~18V Ta=-40C ~+85C, V+/V-=3V~18V Ta=-40C ~+85C Ta=-40C+85C Ta=-40C ~+85C Ta=-40C+85C *1 *1 RL=2k, Vo= -10V0V / 0V+10V / -10V+10V Ta=-40C ~+85C, RL=2k, Vo= -10V0V / 0V+10V / -10V+10V DC VOM1 VOM2 VOM3 VOM4 VOM5 RO RL=10k Ta=-40C ~+85C, RL=10k RL=2k Ta=-40C ~+85C, RL=2k RL=1k Open-Loop ICC1 ICC2 ICC3 PD1 PD1 AV=+1, RL= Ta=-40C ~+85C, 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 - V V V/C V dB dB dB dB dB nA nA pA/C nA nA pA/C M G dB 126 136 - dB - 0.01 - V/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 - 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- E1.3 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 ELECTRONIC CHARACTERISTICS 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 E1.3 CS TEST CONDITION AV=+100, RL=2k, CL=10pF RISE, AV=+1, VIN=1Vpp, RL=2k FALL, AV=+1, VIN=1Vpp, RL=2k fo=1Hz~100Hz fo=1Hz~100Hz MIN. TYP. MAX. UNIT 0.1 0.1 1.1 0.3 0.3 - MHz V/S V/S - 80 3 - nVrms pArms (V+/V-=5V Ta=+25C, VCM=0V unless otherwise specified) TEST CONDITION Ta=-40C ~+85C Ta=-40C ~+85C VCM=0V-3V / VCM=0V+3V Ta=-40C ~+85C, VCM=0V-3V / VCM=0V+3V Ta=-40C ~+85C Ta=-40C ~+85C RL=2k, Vo= -3V0V / 0V+3V / -3V+3V Ta=-40C ~+85C, RL=2k, Vo= -3V0V / 0V+3V / -3V+3V DC VOM1 VOM2 VOM3 VOM4 RL=10k Ta=-40C ~+85C, RL=10k RL=2k Ta=-40C ~+85C, RL=2k ICC1 ICC2 AV=+1, RL= Ta=-40C ~+85C, 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 - V V V dB dB dB nA nA nA nA dB 110 125 - dB - 0.01 - V/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 = VIO / t t : Amount of Temperature change. VIO : 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 | ( VIN / VIO )| VIN : Amount of Input Voltage. VIO : Amount of Input Offset Voltage. Supply Voltage Rejection Ratio SVR = 20log |( VS / VIO )| VS : Amount of supply Voltage. VIO : Amount of Input Offset Voltage. Common Mode Input Impedance RINCM = VIN / IB VIN : Amount of Input Voltage. IB : Amount of Input bias current. Voltage Gain AV = 20log |( VIN / VO )| VO : Amount of output Voltage. VIN : Amount of Input Voltage. -4- E1.3 NJM2739 TYPICAL CHARACTERISTICS Input Offset Voltage Distribution + Input Offset Voltage Distribution - V /V =15V,Ta=25 50 40 Number Of Amplifiers Number Of Amplifiers 40 30 20 10 20 10 0 -70-60-50-40-30-20-10 0 10 20 30 40 50 60 70 Input Offset Voltage Drift Distribution Input Offset Voltage Drift Distribution + Input Offset Voltage [V] - V /V =15V,Ta=-40 to 25 40 Number Of Amplifiers 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 Voltage Drift [V/] 0 1 0.2 0.4 0.6 0.8 1 Input Offset Volotage Drift Distribution + - V /V =5V,Ta=-40 to 25 40 35 35 30 30 Number Of Amplifiers Number Of Amplifiers + -1 -0.8 -0.6 -0.4 -0.2 0 Input Offset Voltage Drift [V/] Input Offset Voltage Drift Distribution 40 V+/V-=15V,Ta=25 to 85 35 25 Number Of Amplifiers 30 0 -70-60-50-40-30-20-10 0 10 20 30 40 50 60 70 Input Offset Voltage [V] 30 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 Voltage Drift [V/] E1.3 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 Voltage Drift [V/] -5- NJM2739 TYPICAL CHARACTERISTICS Input Offset Voltage vs. Temperature 100 V+/V-=5V, VCM=0V 100 80 80 60 60 Input Offset Voltage [V] Input Offset Voltage [V] 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 [C] 100 -50 (Supply Voltage) VCM =0V Sample1 (5V) Sample3 (5V) 0 Sample1 (15V) Sample2 (15V) Sample3 (15V) -50 -100 -50 -25 0 25 (Supply Voltage) VCM =0V 100 50 75 100 125 V+/V -=3V 50 Input Offset Voltge [V] Input Offset Voltage [V] Sample2 (5V) 50 0 -100 -50 -25 25 50 75 100 125 Input Bias Curent vs. Supply Voltage VCM =0V VCM =0V 4 3 Input Bias Current [nA] Input Offset Voltge [V] 0 Ambient Temperature [] 40 Sample1 30 Sample2 20 10 0 Sample3 0 4 8 12 16 Supply Voltage [V] -6- V+/V -=18V -50 Input Offset Voltage vs. Supply Voltage -10 V+/V -=5V V+/V-=15V Ambient Temperature [] 50 100 Input Offset Voltage vs. Temperature Input Offset Voltage vs. Temperature 100 -25 0 25 50 75 Ambient Temperature [C] 20 24 Sample2 2 Sample1 1 0 -1 Sample3 0 4 8 12 16 20 24 Supply Voltage [V] E1.3 NJM2739 TYPICAL CHARACTERISTICS Input Offset Voltage vs. Common Mode Input Voltage 8 60 6 50 Input Offset Voltage [V] Variation in Input Offset Voltage [V] Variation in Input Offset Voltage vs. Common Mode Input Voltage 4 2 0 -2 -4 (Supply Voltage) Ta=25 Sample1 (5V) 40 Sample2 (5V) 30 20 10 0 Sample2 (15V) -10 -6 -20 -15 -8 -15 -10 -5 0 5 10 15 10 15 + - V /V =15V 60 40 Input offset Voltage [V] Input Offset Voltage [V] 5 50 30 V+/V-=3V 20 V+/V-=5V 10 0 V+/V-=15V -10 -20 -20 -15 -10 -5 V+/V-=18V 0 5 10 40 30 Ta=25 10 0 Ta=-40 -10 15 Common Mode Input Voltage [V] -20 -15 20 + Input Offset Voltage Change [V] Ta=25 Ta=85 20 10 Ta=-40 0 4 8 12 16 Supply Voltage [V] 20 -5 0 5 10 Common Mode Input Voltage [V] 15 24 - V /V =15V, Gv=100dB, Ta=25 4 40 30 -10 Warm Up Input Offset Voltage Drift (Temperature) Vcm=0V 50 Ta=85 20 Input Offset Voltage vs. Supply Voltage Input offset Voltage [V] 0 (Temperature) (Supply Voltage) Ta=25 50 E1.3 -5 Input Offset Voltage vs. Common Mode Input Voltage Input Offset Voltage vs. Common Mode Input Voltage 0 -10 Sample3 (15V) Common Mode Input Voltage [V] Common Mode Input Voltage [V] 60 Sample3 (5V) Sample1 (15V) 3 2 1 0 -1 0 50 100 150 200 Time From Power Supply Turn On [sec] -7- NJM2739 TYPICAL CHARACTERISTICS Input Offset Voltage vs. Output Voltage + Equivalent Input Noise Voltage - V /V =15V, Gv=100dB, R L=2k, Ta=25 Input Offset Voltage [uV] -13 -13.5 -14 -14.5 -15 -15.5 -16 -16.5 -15 -10 -5 0 5 10 Rf=10k, Rs=100, Rg=100, Ta=25 16 Equivalent Input Noise Voltage [nV/Hz] -12.5 14 12 V+/V-=5V 10 8 V+/V-=15V 6 4 2 0 15 1 Output Voltage [V] Equivalent Input Noise Voltage 10 + Equivalent Input Noise Voltage [V] Equivalent Input Noise Voltagte [V] 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 2 4 6 8 Time [sec] 10 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 0 RL= 3.5 Ta=25 -8- Ta=85 2 Ta=-40 1.5 0.5 8 12 V+/V -=18V 16 Supply Voltage [V] 20 24 V+/V -=15V V+/V -=5V 1.5 0.5 4 10 (Supply Voltage) RL= 2 1 0 8 2.5 1 0 6 3 Supply Current [mA] Supply Current [mA] 2.5 4 Time [sec] 4 3.5 3 2 Supply Current vs. Temperature Supply Current vs. Supply Voltage (Temperature) 4 - V /V =5V, BP=1~100Hz 0.8 0.8 0 1000 Equivalent Input Noise Voltage V+/V-=15V, BP=1~100Hz -0.8 100 Frequency [Hz] 0 -50 V+/V -=3V -25 0 25 50 75 Ambient Temperature [] 100 125 E1.3 NJM2739 TYPICAL CHARACTERISTICS Input Bias Current vs. Temperature 10 8 8 Sample1 (15V) Sample2 (15V) Sample3 (15V) 6 Sample1 (5V) Sample2 (5V) Sample3 (5V) 4 2 0 -50 -25 0 25 50 (Supply Voltage) VCM=0V 10 Input Bias Current [nA] Input Bias Current [nA] Input Bias Current vs. Temperature (Supply Voltage) VCM =0V 75 100 V+/V-=18V 6 V /V =15V V+/V-=3V 4 2 -25 Ambient Temperature [] 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 Voltage) Ta=25 3 Ta=-40 1.5 25 Input Bias Current vs. Common Mode Input Voltage (Temperature) 2.5 0 Ambient Temperature [] Input Bias Current vs. Common Mode Input Voltage 3 - V+/V-=5V 0 -50 125 + V+/V-=15V 1.5 V+/V -=18V 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 Common Mode Input Voltage [V] Common Mode Input Voltage [V] Input Offset Current vs. Temperature Input Offset Current vs. Temperature (Supply Voltage) VCM =0V 5 20 (Supply Voltage) VCM =0V 6 Sample1 (15V) Sample2 (15V) Sample3 (15V) 3 Input Offset Current [nA] Input Offset Current [nA] 5 4 Sample1 (5V) Sample2 (5V) Sample3 (5V) 2 1 4 V+/V-=18V + - V /V =15V 3 V+/V-=5V V+/V-=3V 2 1 0 0 -50 E1.3 -25 0 25 50 75 Ambient Temperature [] 100 125 -1 -50 -25 0 25 50 75 100 125 Ambient Temperature [] -9- NJM2739 TYPICAL CHARACTERISTICS Input Offset Current vs. Common Mode Input Voltage Input Offset Current vs. Common Mode Input Voltage (Temperature) V+/V -=15V 2 1.5 1 Ta=-40 0.5 Ta=85 Ta=25 Input Offset Current [nA] Input Offset Current [nA] 1.5 0 -0.5 -1 -1.5 1 -0.5 V+/V -=18V V+/V -=5V -1 -10 -5 0 5 10 -2 -20 15 + + V ICM =V +2V to V -2V V + /V - =15V V + /V - =18V V + /V - =5V 150 100 V + /V -=3V 50 0 -50 -25 0 25 50 75 100 V /V =14.5 to 15.5V, Gv=80dB, Ta=25 Supply Voltage Rejection Ratio [dB] -SVR 80 +SVR 40 20 0 10 1 10 2 10 Frequency [Hz] 3 10 15 20 100 80 60 10 3 10 4 10 Frequency [Hz] 5 V+/V -=18V to 3V 200 120 60 10 120 - 100 5 Supply Voltage Rejection Ratio vs. Temperature Supply Voltage Rejection Ratio vs. Frequency 140 0 - 40 2 10 125 Ambient Temperature [] + -5 V /V =15V, Gv=80dB, Ta=25 140 Common Mode Rejection Ratio [dB] 200 -10 Common Mode Rejection Ratio vs. Frequency (Supply Voltage) - -15 Common Mode Input Voltage [V] Common Mode Rejection Ratio vs. Temperature Common Mode Rejection Ratio [dB] V+/V-=3V 0 Common Mode Input Voltage [V] Supply Voltage Rejection Ratio [dB] V+/V -=15V 0.5 -1.5 -2 -15 - 10 - (Supply Voltage) Ta=25 2 4 10 150 100 50 0 -50 -25 0 25 50 75 100 125 Temperature [] E1.3 NJM2739 TYPICAL CHARACTERISTICS Voltage Gain vs. Supply Voltage Voltage Gain vs. Temperature (Supply Voltage) RL=2k 200 + (Temperature) RL=2k 160 - V /V =18V V+/V-=15V 150 150 Ta=-40 V+/V -=3V V+/V-=5V 100 Voltage Gain [dB] Voltage Gain [dB] Ta=85 Ta=25 50 140 130 120 110 0 -50 -25 0 25 50 75 100 100 125 Ambient Temperature [] Ta=25 Ta=85 0 Ta=85 Ta=25 Ta=-40 -10 2 10 10 3 4 10 10 20 24 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 Resistance [] Output Voltage vs. Output Current Maximum output Voltage vs. Temperature V+/V-=15V 5 (Supply Voltage) RL=2k 20 15 10 +V OM Ta=-40 +VOM Ta=25 5 +VOM Ta=85 0 -V OM Ta=-40 -5 -VOM Ta=25 -V OM Ta=85 -10 -15 16 Load Resistance [] 15 10 V+/V-=5V 5 V+/V-=18V 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 [mA] E1.3 Maximum Output Voltage [V] Ta=-40 Maximum output Voltage [V] Maximum output Voltage [V] 15 -5 12 (Supply Voltage) Ta=25 20 10 -15 1 10 Output Current [V] - V /V =15V 5 8 Maximum Output Voltage vs. Load Resistance (Temperature) 15 4 Supply Voltage [V] Maximum Output Voltage vs. Load Resistance + 0 30 35 40 -20 -50 -25 0 25 50 75 100 125 Ambient Temperature [] - 11 - NJM2739 TYPICAL CHARACTERISTICS THD+N vs. Frequency THD+N vs. Output Voltage + V /V =15V, Gv=20dB, R F=10k, Rs=1k, Ta=25 10 1 0.8 1 f=20kHz THD+N [%] THD+N [%] V+/V-=15V, Gv=20dB, R F=10k, Rs=1k, Vout=100mVrms, Ta=25 - 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 10 100 180 80 60 V+/V -=18V 120 60 0 + 60 - V /V =3V Phase 20 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 10 40 20 V+/V -=15V, Gv=40dB, R F=10k, Rs=100, R T=50 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 Frequency [Hz] -120 6 10 -180 7 10 40dB Gain/Phase vs. Frequency (Load Capacitance) 40dB Gain/Phase vs. Frequency (Temperature) V+/V -=15V, Gv=40dB, R F=10k, Rs=100, R T=50, Ta=25 V+/V -=5V, Gv=40dB, R F=10k, Rs=100, R T=50 CL=0.2F 60 2 3 10 10 4 5 10 Frequency [Hz] 0 -120 10 6 -180 7 10 40 20 180 120 Ta=-40 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 Frequency [Hz] Phase [deg] 10 60 -60 CL=0.2F CL=0.1F CL=0.047F CL=0.01F CL=0F -40 60 CL=0.01F CL=0F -20 - 12 - CL=0.047F Phase 0 120 CL=0.1F Gain 20 80 Phase [deg] 40 180 Voltage Gain [dB] 80 6 180 Ta=-40 Ta=25 Ta=85 Frequency [Hz] Voltage Gain [dB] 5 Phase [deg] V+/V -=5V Voltage Gain [dB] V+/V -=15V Phase [deg] Voltage Gain [dB] 80 Gv=40dB, R F=10k, Rs=100, RT=50, Ta=25 + 10 40dB Gain/Phase vs. Frequency (Temperature) 40dB Gain/Phase vs. Frequency (Supply Voltage) Gain 4 10 Frequency [Hz] Output Voltage [Vrms] 40 1000 -120 10 6 -180 7 10 E1.3 NJM2739 TYPICAL CHARACTERISTICS 20 15 + - V /V =15V, Gv=0dB, R T=50, C L=0.1F 20 15 V+/V-=18V Ta=85 V+/V-=15V V+/V-=5V 10 + Voltage Gain [dB] Voltage Gain [dB] V.F.Peak (Temperature) V.F. Peak (Supply Voltage) Gv=0dB, R T=50, C L=0.1F, Ta=25 - V /V =3V 5 0 -5 Ta=25 Ta=-40 10 5 0 -5 -10 3 10 4 5 10 -10 3 10 6 10 10 Frequency [Hz] 4 5 10 6 10 10 Frequency [Hz] V.F.Peak (Load Capacitance) + - V /V =15V, Gv=0dB, R T=50, Ta=25 20 CL=0.2F Voltage Gain [dB] 15 CL=0.1F 10 CL=0.047F CL=0.01F 5 CL=0F 0 -5 -10 3 10 10 4 10 5 6 10 Frequency [Hz] Pulse Response (Temperature) + Pulse Response (Temperature) - V /V =15V, R L=2k, C L=5pF 2 0.8 V+/V -=15V, R L=2k, 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 E1.3 Output -2 -1 0 1 2 3 Time [s] 4 5 6 -1.6 -2 -1 0 1 2 3 Time [s] 4 5 6 -2 - 13 - NJM2739 TYPICAL CHARACTERISTICS Pulse Response (Temperature) Pulse Response (Temperature) V+/V-=5V, R L=2k, C L=5pF 2 V+/V-=5V, R L=2k, 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 Time [s] 5 6 -0.4 0.8 Output -1.2 0 -1.6 -0.4 -2 -0.8 -0.8 -1.2 -1.6 -2 -1 0 1 2 3 4 Time [s] 5 6 -2 Pulse Response Pulse Response (Supply Voltage, Load Capacitance) RL=2k, Ta=25 2 Ta=-40 Ta=25 Ta=85 0.4 Input [V] Input 0.8 Output [V] 1.6 Input [V] Output [V] Input (Supply Voltage, Load Capacitance) RL=2k, Ta=25 2 0.8 0.8 Input 1.6 1.2 -0.8 V+/V-=5V CL=1500pF -5 0 0 Time [s] 5 10 Output [V] 0.8 -0.4 Output -1.2 0 -1.6 -0.4 -2 -0.8 V+/V -=15V CL=1500pF -5 - -1.2 V /V =5V CL=100pF -1.6 0 Time [s] 5 10 -2 Pulse Response (Load Capacitance) - V /V =15V, R L=2k, Ta=25 2 + -0.8 V+/V -=15V CL=100pF Pulse Response (Load Capacitance) + V+/V -=5V CL=1500pF 0.4 Input [V] V+/V -=5V CL=100pF Output 1.2 -0.8 0 -0.4 0 -0.4 V+/V -=15V CL=1500pF 0.4 0.4 - V /V =15V CL=100pF Input 0.8 1.6 Input [V] Output [V] + 0.4 0.8 V+/V-=15V, R L=2k, 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 -0.8 -20 - 14 - -10 0 10 20 30 Time [s] 40 50 60 CL=0.1F CL=0.047F Output -1.2 0 -1.6 -0.4 -2 -0.8 -20 Output -0.4 0.4 -0.8 CL=0.2F -1.2 -1.6 CL=0.01F -10 0 Input [V] Output [V] 1.2 0.4 Input [V] CL=0.01F CL=0.047F CL=0.1F CL=0.2F Output [V] 1.6 10 20 30 Time [s] 40 50 60 -2 E1.3 NJM2739 TYPICAL CHARACTERISTICS Slew Rate vs. Temperature Unity Gain Frequency vs. Temperature RL=2k 2 Unity Gain Frequency [MHz] 1 Slew Rate [V/s] 0.8 0.6 V+/V -=15V RISE V+/V-=15V FALL 0.4 0.2 0 -50 + -25 0 25 50 75 Ambient Temperature [] E1.3 1.5 + - V /V =15V 1 V+/V -=5V 0.5 - V /V =5V RISE V+/V-=5V FALL Gv=40dB, R F=10k, Rs=100, R T=50 100 125 0 -50 -25 0 25 50 75 100 125 Temperature [] - 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 - E1.3 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. E1.3 - 17 -