NJU7098AF1-TE1

NJU7098A 0.05μV/°C max, Zero-Drift, Single Supply Rail-to-Rail Output CMOS Operational Amplifier FEATURES(V+=5V typ.) DESCRIPTION ●Low Offset Voltage 15μV max. ●Zero-Drift 0.05μV/°C max. ●Supply Voltage Range 3V to 10V ●Rail-to-Rail Output (RL=10kΩ) 20mV from rail + ●Output Current (Vo=4.5V at V =5V) 30mA ●DC Precision Open-Loop Voltage Gain 140dB CMR, SVR 130dB ●Supply Current 0.6mA ●Shutdown ●RF-Noise immunity ●Ground Sense ●Overload Recovery Time 0.45ms ●Package SOT-23-6-1 APPLICATIONS ●Thermocouple Amplifiers ●Electronic Scales ●Strain Gauge Amplifiers ●Medical Instrumentation ●Precision Current Sensing ●High Resolution Data Acquisition ●Low-Side Current Sensing ●Handheld Test Equipment The NJU7098A is a low offset voltage and zero-drift operational amplifier. With an maximum input offset voltage of 15μV and offset drift of 0.05μV/°C, The NJU7098A is suitable for applications in which error sources cannot be tolerated. The NJU7098A operate from 3V to 10V with single supply. Rail-to-rail output swing , input common mode voltage within negative rail and 30mA high output current capability provided by the NJU7098A make low-side sensing or precision output buffer easy. The almost zero DC offset and offset drift are supported with a power supply rejection ratio and common mode rejection ratio at 130dB. Futuremore, typical open-loop voltage gain is 140dB. The NJU7098 includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to shutdown current that is 15μA max and the output placed in a high- impedance state. The NJU7098A is available in 6-pin SOT-23 package. PIN CONFIGURATION (Top View) Pin Function OUTPUT 1 6 V+ V- 2 5 SHDN +INPUT 3 4 -INPUT Package SOT-23-6-1 Product Name Ver.02 NJU7098AF1 [ 1] NJU7098A ■ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL + Supply Voltage V -V Input Voltage (1) UNIT 11 V + V (2) V V -0.3 to V +0.3 VID ±11 (3) 2-Layer / 4-Layer PD SOT-23-6-1 RATING - VIN Differential Input Voltage Power Dissipation - mW 410 / 580 Operating Temperature Range TOPR -40 to +105 °C Storage Temperature Range TSTG -40 to +125 °C (1) Differential voltage is the voltage difference between +INPUT and -INPUT. (2) For supply voltage less than11V, the absolute maximum input voltage is equal to supply voltage. (3) Power dissipation is the power that can be consumed by the IC at Ta=25°C, and is the typical measured value based on JEDEC condition. When using the IC over Ta=25°C subtract the value [mW/°C]=PD/(Tstg(MAX)-25) per temperature. 2-layer: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2 layers, FR-4) mounting 4-layer: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 4 layers, FR-4) mounting Power Dissipation vs. Temperature Power Dissipation PD [mW] 700 600 500 SOT-23-6-1 (4-Layer) 400 300 200 SOT-23-6-1 (2-Layer) 100 0 5 25 45 65 85 105 Ambient Temperature [ºC] 125 ■ RECOMMENDED OPERATING CONDITIONS (Ta=25°C) PARAMETER Supply Voltage Ver.02 CONDITION MIN. 3 TYP. MAX. UNIT 10 V [ 2] NJU7098A ■ ELECTRICAL CHARACTERISTICS (V+=3V, V-=0V, VSHDN=V+, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 3 15 μV DC CHARACTERISTICS Input Offset Voltage (4) Input Offset Voltage Drift (4) VIO Ta=-40°C to 85°C - VIO/ΔT Ta=-40°C to 85°C - - 0.05 μV/°C - 15 400 pA - - 1000 pA - - 500 pA - - 1000 pA RL≥10kΩ, VO=0.35 to 2.65V 120 140 - dB Ta=-40°C to 85°C 115 140 - dB 0 - 1.7 V VICM=0 to 1.7V 110 130 dB Ta=-40°C to 85°C 110 130 dB 110 130 - dB Input Bias Current IB Input Offset Current IIO Open-Loop Voltage Gain AV Common-Mode Input Voltage Range VICM Common-Mode Rejection Ratio CMR Ta=-40°C to 85°C Ta=-40°C to 85°C CMR≥110dB, Ta=-40°C to 85°C + Supply Voltage Rejection Ratio SVR Ta=-40°C to 85°C 110 130 - dB RL=10kΩ to 0V, Ta=-40°C to 85°C 2.95 2.98 - V RL=2kΩ to 0V, Ta=-40°C to 85°C 2.85 2.94 - V RL=10kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV RL=2kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV ISOURCE VO=2.5V, Ta=-40°C to 85°C 5 20 - mA ISINK VO=0.5V, Ta=-40°C to 85°C 3 25 - mA VSHDN=3V - 0.55 1.1 mA VSHDN=0V - - 10 μA High-level Output Voltage VOH Low-level Output Voltage VOL Output Source Current Output Sink Current Supply Current Normally Mode V =3 to 10V No Signal, Ta=-40°C to 85°C ISUPPLY Shutdown Mode Shutdown Pin Input High Voltage VSHDNON ISUPPLY≥300μA, Ta=-40°C to 85°C 2.5 - 3 V Shutdown Pin Input Low Voltage VSHDNOFF ISUPPLY≤10μA, Ta=-40°C to 85°C 0 - 0.5 V ISHDN VSHDN=0V, Ta=-40°C to 85°C - 0.5 3 μA Gain Bandwidth Product GBW RL=10kΩ - 2 - MHz Positive Slew Rate +SR GV=+1, RL=10kΩ - 3 - V/μs Negative Slew Rate -SR GV=+1, RL=10kΩ - 8 - V/μs Phase Margin ΦM RL=10kΩ, CL=50pF - 30 - deg Equivalent Input Noise Voltage VNI f=10Hz - 120 - nV/√Hz Internal Sampling Frequency FS - 7.5 - kHz Shutdown Pin Input Current AC CHARACTERISTICS (4) These parameters are guaranteed by design. Ver.02 [ 3] NJU7098A ■ ELECTRICAL CHARACTERISTICS (V+=5V, V-=0V, VSHDN=V+, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 3 15 μV - - 0.05 μV/°C - 20 400 pA - - 1000 pA - - 500 pA - - 1000 pA RL≥10kΩ, VO=1 to 4V 125 140 - dB Ta=-40°C to 85°C 120 140 - dB 0 - 3.5 V VICM=0 to 3.5V 120 130 dB Ta=-40°C to 85°C 115 130 dB 115 130 - dB DC CHARACTERISTICS Input Offset Voltage (4) Input Offset Voltage Drift VIO (4) VIO/ΔT Input Bias Current IB Input Offset Current IIO Open-Loop Voltage Gain AV Common-Mode Input Voltage Range VICM Common-Mode Rejection Ratio CMR Ta=-40°C to 85°C Ta=-40°C to 85°C Ta=-40°C to 85°C CMR≥115dB, Ta=-40°C to 85°C + Supply Voltage Rejection Ratio SVR High-level Output Voltage VOH Low-level Output Voltage VOL Output Source Current Output Sink Current Ta=-40°C to 85°C 115 130 - dB RL=10kΩ to 0V, Ta=-40°C to 85°C 4.95 4.98 - V RL=2kΩ to 0V, Ta=-40°C to 85°C 4.85 4.94 - V RL=10kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV RL=2kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV ISOURCE VO=4.5V, Ta=-40°C to 85°C 10 30 - mA ISINK VO=0.5V, Ta=-40°C to 85°C 4 40 - mA VSHDN=5V - 0.6 1.2 mA VSHDN=0V - - 15 μA Supply Current Normally Mode V =4 to 10V No Signal, Ta=-40°C to 85°C ISUPPLY Shutdown Mode Shutdown Pin Input High Voltage VSHDNON ISUPPLY≥300μA, Ta=-40°C to 85°C 4.5 - 5 V Shutdown Pin Input Low Voltage VSHDNOFF ISUPPLY≤10μA, Ta=-40°C to 85°C 0 - 0.5 V ISHDN VSHDN=0V, Ta=-40°C to 85°C - 2 7 μA Gain Bandwidth Product GBW RL=10kΩ - 3 - MHz Positive Slew Rate +SR GV=+1, RL=10kΩ - 3 - V/μs Negative Slew Rate -SR GV=+1, RL=10kΩ - 12 - V/μs Phase Margin ΦM RL=10kΩ, CL=50pF - 30 - deg Equivalent Input Noise Voltage VNI f=10Hz - 120 - nV/√Hz Internal Sampling Frequency FS - 7.5 - kHz Shutdown Pin Input Current AC CHARACTERISTICS (4) These parameters are guaranteed by design. Ver.02 [ 4] NJU7098A ■ ELECTRICAL CHARACTERISTICS (V+=10V, V-=0V, VSHDN=V+, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 3 15 μV - - 0.05 μV/°C - 40 400 pA - - 1000 pA - - 500 pA - - 1000 pA RL≥10kΩ, VO=1 to 9V 125 140 - dB Ta=-40°C to 85°C 120 140 - dB 0 - 8.5 V VICM=0 to 8.5V 120 130 dB Ta=-40°C to 85°C 115 130 dB V =4 to 10V 115 130 - dB Ta=-40°C to 85°C 115 130 - dB RL=10kΩ to 0V, Ta=-40°C to 85°C 9.6 9.98 - V RL=2kΩ to 0V, Ta=-40°C to 85°C 9.5 9.94 - V RL=10kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV RL=2kΩ to 0V, Ta=-40°C to 85°C - 1 10 mV DC CHARACTERISTICS Input Offset Voltage (4) Input Offset Voltage Drift VIO (4) VIO/ΔT Input Bias Current IB Input Offset Current IIO Open-Loop Voltage Gain AV Common-Mode Input Voltage Range VICM Common-Mode Rejection Ratio CMR Ta=-40°C to 85°C Ta=-40°C to 85°C Ta=-40°C to 85°C CMR≥115dB, Ta=-40°C to 85°C + Supply Voltage Rejection Ratio SVR High-level Output Voltage VOH Low-level Output Voltage VOL Output Source Current Output Sink Current ISOURCE VO=9.5V, Ta=-40°C to 85°C 14 40 - mA ISINK VO=0.5V, Ta=-40°C to 85°C 5 60 - mA VSHDN=10V - 0.7 1.5 mA VSHDN=0V - - 25 μA Supply Current Normally Mode No Signal, Ta=-40°C to 85°C ISUPPLY Shutdown Mode Shutdown Pin Input High Voltage VSHDNON ISUPPLY≥400μA, Ta=-40°C to 85°C 9.5 - 10 V Shutdown Pin Input Low Voltage VSHDNOFF ISUPPLY≤25μA, Ta=-40°C to 85°C 0 - 0.5 V ISHDN VSHDN=0V, Ta=-40°C to 85°C - 7.5 20 μA Gain Bandwidth Product GBW RL=10kΩ - 5 - MHz Positive Slew Rate +SR GV=+1, RL=10kΩ - 4 - V/μs Negative Slew Rate -SR GV=+1, RL=10kΩ - 14 - V/μs Phase Margin ΦM RL=10kΩ, CL=50pF - 30 - deg Equivalent Input Noise Voltage VNI f=10Hz - 120 - nV/√Hz Internal Sampling Frequency FS - 7.5 - kHz Shutdown Pin Input Current AC CHARACTERISTICS (4) These parameters are guaranteed by design. Ver.02 [ 5] NJU7098A ■ TYPICAL CHARACTERISTICS Input Offset Voltage Distribution Input Offset Voltage Distribution V+=3V, VCOM=V+/2, Ta=25ºC 30% 25% Percent of Amplifiers Percent of Amplifiers 25% 20% 15% 10% 5% 20% 15% 10% 5% 0% 0% -9.0 -6.0 -3.0 0.0 3.0 6.0 9.0 Input Offset Voltage [μV] 12.0 -9.0 Input Offset Voltage Distribution 35% Percent of Amplifiers Percent of Amplifiers 20% 15% 10% 5% 12.0 V+=3V, VCOM=V+/2 25% 20% 15% 10% 5% 0% 0% -9.0 -6.0 -3.0 0.0 3.0 6.0 9.0 Input Offset Voltage [μV] 12.0 -0.09 -0.06 -0.03 0 0.03 0.06 Input Offset Voltage Drift [μV/ºC] Input Offset Voltage Drift Distribution 0.09 Input Offset Voltage Drift Distribution V+=5V, VCOM=V+/2 35% V+=10V, VCOM=V+/2 30% Percent of Amplifiers 30% Percent of Amplifiers -3.0 0.0 3.0 6.0 9.0 Input Offset Voltage [μV] 30% 25% 25% 20% 15% 10% 5% 25% 20% 15% 10% 5% 0% 0% -0.09 -0.06 -0.03 0 0.03 0.06 Input Offset Voltage Drift [μV/ºC] Ver.02 -6.0 Input Offset Voltage Drift Distribution V+=10V, VCOM=V+/2, Ta=25ºC 30% 35% V+=5V, VCOM=V+/2, Ta=25ºC 30% 0.09 -0.09 -0.06 -0.03 0 0.03 0.06 Input Offset Voltage Drift [μV/ºC] 0.09 [ 6] NJU7098A ■ TYPICAL CHARACTERISTICS Input Offset Voltage vs. Common-Mode Input Voltage Input Offset Voltage vs. Temperature VCOM=V+/2 6 6 Input Offset Voltage [V] 4 Input Offset Voltage [μV] V+=3V 8 2 V+=10V 0 -2 -4 V+=3V V+=5V -6 4 Ta=-40ºC 2 0 -2 -4 -6 Ta=25ºC Ta=85ºC -8 -10 -8 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] -12 -0.3 125 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 Common-Mode Input Voltage [V] Input Offset Voltage vs. Common-Mode Input Voltage 8 6 6 4 4 2 0 Ta=-40ºC -2 -4 -6 Ta=85ºC Ta=25ºC -8 V+=10V 8 Input Offset Voltage [μV] Input Offset Voltage [V] Input Offset Voltage vs. Common-Mode Input Voltage V+=5V -10 2 Ta=-40ºC Ta=85ºC 0 -2 -4 -6 Ta=25ºC -8 -10 -12 -12 -1 0 1 2 3 4 Common-Mode Input Voltage [V] 5 -1 VCOM=V+/2 Common-Mode and Supply Voltage Rejection Ratio [dB] Input Bias Current [pA] 300 V+=10V V+=5V V+=3V 100 0 140 CMR(V+=5V, 10V) 120 100 CMR(V+=3V) 80 60 ±SVR 40 20 0 -50 Ver.02 10 Ta=25ºC 160 400 200 1 2 3 4 5 6 7 8 9 Common-Mode Input Voltage [V] Common-Mode and Supply Voltage Rejection Ratio vs. Frequency Input Bias Currentvs. Temperature 500 0 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 1 10 100 1k Frequency [Hz] 10k 100k [ 7] NJU7098A ■ TYPICAL CHARACTERISTICS VOH Ta=-40ºC 2.4 Ta=25ºC 2.1 1.8 Ta=85ºC 1.5 1.2 Ta=85ºC 0.9 6 Ta=25ºC Ta=-40ºC 0.6 4 VOL 0.3 2 0.0 High-level Output Voltage [V] 2.7 100 1k Load Resistance [Ω] 4 Ta=25ºC 3 Ta=85ºC 2 Ta=25ºC VOL 3 2 6 4 1 2 Ta=85ºC 0 10 Maximum Output Voltage [V] Ta=-40ºC Low-level Output Voltage [mV] High-level Output Voltage [V] Ta=-40ºC Ta=85ºC 4 2.5 Ta=85ºC 1.5 1.0 0.5 0 Maximum Output Voltage [V] Maximum Output Voltage [V] Ta=85ºC Ta=25ºC 2 Ta=25ºC Ta=85ºC 1 VOL 0 60 Ta=-40ºC VOH 8 Ta=85ºC 7 Ta=25ºC 6 5 4 Ta=25ºC 3 Ta=85ºC 2 VOL Ta=-40ºC 0 0 Ver.02 50 V+=10V, GV=OPEN, RL connected to V+/2 1 Ta=-40ºC 20 30 40 Output Current [mA] Maximum Output Voltage vs. Output Current 9 4 Ta=-40ºC 10 10 Ta=-40ºC 3 Ta=25ºC 0.0 V+=5V, GV=OPEN, RL connected to V+/2 VOH Ta=25ºC 2.0 Maximum Output Voltage vs. Output Current 5 VOH VOL 0 100k 100 1k 10k Load Resistance [Ω] 10k V+=3V, GV=OPEN, RL connected to V+/2 3.0 Ta=25ºC 5 100 1k Load Resistance [Ω] Maximum Output Voltage vs. Output Current Ta=-40ºC 6 4 0 10 VOH 7 6 VOL 0 V+=10V, V-=0V, GV=OPEN, RL connected to 0V 8 Ta=85ºC 1 10k 9 Ta=25ºC Ta=-40º C Maximum Output Voltage vs. Load Resistance 10 VOH Ta=-40º C 2 0 10 V+=5V, V-=0V, GV=OPEN, RL connected to 0V 5 Low-level Output Voltage [mV] High-level Output Voltage [V] Maximum Output Voltage vs. Load Resistance V+=3V, V-=0V, GV=OPEN, RL connected to 0V Low-level Output Voltage [mV] Maximum Output Voltage vs. Load Resistance 3.0 20 40 60 80 Output Current [mA] 100 0 100 200 Output Current [mA] [ 8] NJU7098A ■ TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage Supply Current vs. Temperature AV=0dB 1200 1100 900 1000 Ta=-40ºC 900 800 700 600 500 Ta=25ºC 400 Ta=85ºC 300 V+=10V 800 Supply Current [μA] Supply Current [μA] AV=0dB 1000 700 600 500 400 V+=3V 200 200 100 100 0 0 0 1 2 3 4 5 6 7 8 Supply Voltage V+ [V] 9 10 11 -50 40dB Voltage Gain/Phase vs. Frequency -25 0 25 50 75 100 Ambient Temperature [ºC] 125 Phase Margin vs. Load Capacitance V+=10V, GV=40dB, RL=10kΩ to V+/2, Ta=25ºC 60 RL=10kΩ to V+/2, Ta=25ºC 80 Gain 70 20 Phase 0 0 CL=50pF CL=100pF -20 -40 -60 -120 CL=50pF Phase [deg] CL=0pF Phase Margin [deg] 40 Voltage Gain [dB] V+=5V 300 60 V+=10V 50 V+=3V 40 30 20 V+=5V 10 CL=100pF -60 1k 12 10k 100k 1M Frequency [Hz] 10M -180 100M 0 0 20 40 60 80 100 Load Capacitance [pF] GBW vs. Temperature Pulse Response f=1MHz V+=10V, GV=0dB, RL=10kΩ, CL=50pF 120 10 8 Voltage [0.5V/div] GBW [MHz] V+=10V V+=5V 6 4 2 Ta=85ºC Ta=25ºC Ta=-40ºC V+=3V 0 -50 Ver.02 -25 0 25 50 75 Ambient Temperature [ºC] 100 Time [0.5μs/div] [ 9] NJU7098A Voltage Noise Density vs. Frequency Voltage Noise V+=10V V+=10V, f=1~100Hz 500 450 Voltage Noise [5μV/div] 400 350 300 Ta=25ºC 250 Ta=85ºC 200 150 100 50 Ta=-40ºC 0 10 100 1k Frequency [Hz] Internal Sampling Frequency vs. Temperature 10 Internal Sampling Frequency [kHz] 1s/div 10k 9 No Phase Reversal 6.0 Input/Output Voltage [V] Equivalent Input Noise Voltage [nV/√Hz] ■ TYPICAL CHARACTERISTICS V+=3V 8 7 V+=5V V+=10V 6 V+/V-=±5.0V, AV=0dB, RL=2kΩ to 0V, CL=50pF Input 4.0 2.0 0.0 Output -2.0 -4.0 5 -6.0 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 Time [0.2ms/div] Positive Overload Recovery Response Negative Overload Recovery Response V+/V-=±2.5V, GV=40dB, Ta=25ºC V+/V-=±2.5V, GV=40dB, Ta=25ºC [0.1V/div] 0 0 0 0 0 0 0 0 0 0 0 0 0 OUTPUT 0 Time [0.1ms/div] Ver.02 INPUT 0 0 OUTPUT [1V/div] [1V/div] [0.1V/div] INPUT Time [0.1ms/div] [ 10] NJU7098A ■ TYPICAL CHARACTERISTICS Supply Current vs. Shutdown Pin Voltage Supply Current vs. Shutdown Pin Voltage V+=3V, GV=0dB 700 Ta=25ºC Ta=-40ºC Ta=-40ºC 900 600 Ta=25ºC 800 Supply Current [μA] Supply Current [μA] V+=10V, GV=0dB 1000 500 Ta=85ºC 400 300 200 700 600 Ta=85ºC 500 400 300 200 100 100 0 0 0 0.5 1 1.5 2 2.5 Shutdown Pin Voltage [V] 3 0 Turn on/off Time 1 2 3 4 5 6 7 8 Shutdown Pin Voltage [V] 9 10 Turn on/off Time vs. Supply Voltage V+=5V, V-=0V, RL=2kΩ to 0V, Ta=25ºC V-=0V, RL=2kΩ to 0V, Ta=25ºC 12 Turn on/off Time [μs] 10 Voltage [2V/div] VSHDN VOUT 6 Turn on 4 Turn off 2 Time [2μs/div] Ver.02 8 0 2 3 4 5 6 7 8 9 Supply Voltage V+ [V] 10 11 [ 11] NJU7098A ■ Application Note Shutdown Common-Mode Input Voltage Range The NJU7098A has a shutdown pin. It can be disabled when the shutdown pin voltage is pulled at less than 0.5V above the negative supply, it can be enabled when the + shutdown pin voltage is pulled at V -0.5V or more above negative supply. With the NJU7098A in shutdown mode, the output goes into high impedance mode. In this mode, the only path between the inputs and the output pin is through the external components around the device. So, for applications where there is active signal connection to the inverting input, with the NJU7098A in shutdown, the output could show signal swings due to current flow through these external components. For non-inverting amplifiers in shutdown, no output swings would occur, because of input-output isolation, with the exception of capacitive coupling. In applications where shutdown operation is not needed and the NJU7098A is used, the shutdown pin should be + open or connected to V . When the supply voltage does not meet the condition of electrical characteristics, the range of common-mode input voltage is as follows: − + VICM (typ.) = V to V -1.5V (Ta = 25°C) Difference of VICM when Temperature change, refer to typical characteristic graph. During designing, consider variations in characteristics for use with allowance. V+ When the supply voltage does not meet the condition of electrical characteristics, the range of the typ. value of the maximum output voltage is as follows: + VOM (typ.) = V +5mV to V -20mV (RL=10kΩ to V , Ta=25°C) During designing, consider variations in characteristics and temperature characteristics for use with allowance. In addition, also note that the output voltage range becomes narrow as shown in typical characteristics graph when an output current increases. Thermoelectric Effect V+ or OPEN SHDN +INPUT Maximum Output Voltage Range Output -INPUT V- Normally Mode (Shutdown is disable) V+ +INPUT The NJU7098A has a low offset voltage(15μV) and zero-drift(0.05µV/°C) characteristics. Achieve a high performance, take care about thermoelectric effect possibly occurs on each input terminal. Generally, if there are thermal mismatches at the junction of different types of metals, the thermoelectric voltage (Seebeck effect) occurs at the junction. This voltage difference causes offset voltage and offset voltage drift. To minimize this voltage difference, the thermal mismatch in-between each input terminal and PCB metal should be minimized. Input Bias Current The NJU7098A has MOS input stage, and has very low + bias current is 20pA at V =5V, Ta=25°C. But, as device temperature rises above approximately 100°C, the reverse leakage current of the input protection diodes becomes increasing, and input bias current rises rapidly with temperature(bias currents approximately double per 10°C increase). For detail of bias current with temperature, see typical characteristics “Input bias current vs. temperature". Output -INPUT SHDN Input Bias Currentvs. Temperature VCOM=V+/2 500 V- Shutdown Mode (Shutdown is enable) Single and Dual Supply Voltage Operation The NJU7098A works with both single supply and dual + − supply when the voltage supplied is between V and V . These amplifiers operate from single 3 to 10V supply and dual ±1.5V to ±5V supply. Input Bias Current [pA] V400 300 200 V+=10V V+=5V V+=3V 100 0 -50 Ver.02 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 [ 12] NJU7098A ■ PACKAGE DIMENSIONS 0~10° 2.9±0.2 1.9±0.2 2 0.6 0.445±0.1 1 4 2.8±0.2 5 +0.2 1.6 - 0.1 6 3 0.95 0.4±0.1 0.1 1.1±0.1 Unit: mm 0.1MAX 0.8 +0.1 0.13 -0.03 SOT-23-6-1 Package [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. Ver.02 [ 13]