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AD8451 Datasheet(PDF) 5 Page - Analog Devices |
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AD8451 Datasheet(HTML) 5 Page - Analog Devices |
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5 / 33 page  AD8451 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit Reference Input Voltage Range BVREFH and BVREFL pins tied together AVEE AVCC V Output Voltage Level Shift BVREFL pin grounded Maximum BVREFH pin connected to VREF pin 4.5 5 5.5 mV Scale Factor VBVMEA/VBVREFH 1.8 2 2.2 mV/V CMRR ΔVCM = 10 V, RTO 80 dB Temperature Coefficient TA = TMIN to TMAX 0.05 µV/V/°C PSRR ΔVS = 20 V, RTO 100 dB Output Voltage Noise f = 1 kHz, RTI 105 nV/√Hz Voltage Noise, Peak to Peak f = 0.1 Hz to 10 Hz, RTI 2 µV p-p Small Signal −3 dB Bandwidth 1 MHz Slew Rate 0.8 V/µs CONSTANT CURRENT AND CONSTANT VOLTAGE LOOP FILTER AMPLIFIERS Offset Voltage 150 µV Offset Voltage Drift TA = TMIN to TMAX 0.6 µV/°C Input Bias Current −5 +5 nA Over Temperature TA = TMIN to TMAX −5 +5 nA Input Common-Mode Voltage Range AVEE + 1.5 AVCC − 1.8 V Output Voltage Swing VVCLN = AVEE + 1 V, VVCLP = AVCC − 1 V AVEE + 1.5 AVCC − 1 V Over Temperature TA = TMIN to TMAX AVEE + 1.7 AVCC − 1 V Closed-Loop Output Impedance 0.01 Ω Capacitive Load Drive 1000 pF Source Short-Circuit Current 1 mA Sink Short-Circuit Current 40 mA Open-Loop Gain 140 dB CMRR ΔVCM = 10 V 100 dB PSRR ΔVS = 20 V 100 dB Voltage Noise f = 1 kHz 10 nV/√Hz Voltage Noise, Peak to Peak f = 0.1 Hz to 10 Hz 0.3 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 Gain Bandwidth Product 3 MHz Slew Rate ΔVVINT = 10 V 1 V/µs CC to CV Transition Time 1.5 µs VINT AND CONSTANT VOLTAGE BUFFER Nominal Gain 1 V/V Offset Voltage 150 µV Offset Voltage Drift TA = TMIN to TMAX 0.6 µV/°C Input Bias Current CV buffer only −5 +5 nA Over Temperature TA = TMIN to TMAX −5 +5 nA Input Voltage Range AVEE + 1.5 AVCC − 1.8 V Output Voltage Swing Current Sharing and Constant Voltage Buffers AVEE + 1.5 AVCC − 1.5 V Over Temperature TA = TMIN to TMAX AVEE + 1.7 AVCC − 1.5 V VINT Buffer VVCLN − 0.6 VVCLP + 0.6 V Over Temperature TA = TMIN to TMAX VVCLN − 0.6 VVCLP + 0.6 V Output Clamps Voltage Range VINT buffer only VCLP Pin VVCLN AVCC − 1 V VCLN Pin AVEE + 1 VVCLP V Closed-Loop Output Impedance 1 Ω Capacitive Load Drive 1000 pF Short-Circuit Current 40 mA PSRR ΔVS = 20 V 100 dB Rev. 0 | Page 4 of 32 |
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