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AD8451 Datasheet(PDF) 4 Page - Analog Devices |
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AD8451 Datasheet(HTML) 4 Page - Analog Devices |
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4 / 33 page  Data Sheet AD8451 SPECIFICATIONS AVCC = +15 V, AVEE = −15 V; DVCC = +5 V; TA = 25°C, unless otherwise noted. Table 1. Parameter Test Conditions/Comments Min Typ Max Unit CURRENT SENSE INSTRUMENTATION AMPLIFIER Internal Fixed Gain 26 V/V Gain Error VISMEA = ±10 V ±0.1 % Gain Drift TA = TMIN to TMAX 3 ppm/°C Gain Nonlinearity VISMEA = ±10 V, RL = 2 kΩ 3 ppm Offset Voltage (RTI) ISREFH and ISREFL pins grounded −110 +110 µV Offset Voltage Drift TA = TMIN to TMAX 0.9 µV/°C Input Bias Current 15 30 nA Temperature Coefficient TA = TMIN to TMAX 150 pA/°C Input Offset Current 2 nA Temperature Coefficient TA = TMIN to TMAX 10 pA/°C Input Common-Mode Voltage Range VISVP − VISVN = 0 V AVEE + 2.3 AVCC − 2.4 V Over Temperature TA = TMIN to TMAX AVEE + 2.6 AVCC − 2.6 V Overvoltage Input Range AVCC − 55 AVEE + 55 V Differential Input Impedance 150 GΩ Input Common-Mode Impedance 150 GΩ Output Voltage Swing AVEE + 1.5 AVCC − 1.2 V Over Temperature TA = TMIN to TMAX AVEE + 1.7 AVCC − 1.4 V Capacitive Load Drive 1000 pF Short-Circuit Current 40 mA Reference Input Voltage Range ISREFH and ISREFL pins tied together AVEE AVCC V Reference Input Bias Current VISVP = VISVN = 0 V 5 µA Output Voltage Level Shift ISREFL pin grounded Maximum ISREFH pin connected to VREF pin 17 20 23 mV Scale Factor VISMEA/VISREFH 6.8 8 9.2 mV/V Common-Mode Rejection Ratio (CMRR) ΔVCM = 20 V 108 dB Temperature Coefficient TA = TMIN to TMAX 0.01 µV/V/°C Power Supply Rejection Ratio (PSRR) ΔVS = 20 V 108 122 dB Voltage Noise f = 1 kHz 9 nV/√Hz Voltage Noise, Peak to Peak f = 0.1 Hz to 10 Hz 0.2 µV p-p Current Noise f = 1 kHz 80 fA/√Hz Current Noise, Peak to Peak f = 0.1 Hz to 10 Hz 5 pA p-p Small Signal −3 dB Bandwidth 1.5 MHz Slew Rate ΔVISMEA = 10 V 5 V/µs VOLTAGE SENSE DIFFERENCE AMPLIFER Internal Fixed Gains 0.8 V/V Gain Error VIN = ±10 V ±0.1 % Gain Drift TA = TMIN to TMAX 3 ppm/°C Gain Nonlinearity VBVMEA = ±10 V, RL = 2 kΩ 3 ppm Offset Voltage (RTO) BVREFH and BVREFL pins grounded 500 µV Offset Voltage Drift TA = TMIN to TMAX 4 µV/°C Differential Input Voltage Range VBVN = 0 V, VBVREFL = 0 V −16 +16 V Input Common-Mode Voltage Range VBVMEA = 0 V −27 +27 V Differential Input Impedance 200 kΩ Input Common-Mode Impedance 90 kΩ Output Voltage Swing AVEE + 1.5 AVCC − 1.5 V Over Temperature TA = TMIN to TMAX AVEE + 1.7 AVCC − 1.7 V Capacitive Load Drive 1000 pF Short-Circuit Current 30 mA Rev. 0 | Page 3 of 32 |
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