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AD7734 Datasheet(PDF) 3 Page - Analog Devices |
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AD7734 Datasheet(HTML) 3 Page - Analog Devices |
3 / 32 page AD7734 Rev. 0 | Page 3 of 32 AD7734—SPECIFICATIONS Table 1. (–40°C to +105°C; AVDD = 5 V ± 5%; DVDD = 2.7 V to 3.6 V, or 5 V ± 5%; BIAS0 to BIAS3, BIASHI, REFIN(+) = 2.5 V; BIASLO, REFIN(–) = AGND; AIN Range = ±10 V; fMCLKIN = 6.144 MHz; unless otherwise noted.) Parameter Min Typ Max Unit Test Conditions/Comments ADC PERFORMANCE CHOPPING ENABLED Conversion Time Rate 372 12190 Hz Configure via Conv. Time Register No Missing Codes1, 2 24 Bits FW ≥ 6 (Conversion Time ≥ 165 µs) Output Noise See Table 4 Resolution See Table 5 and Table 6 Integral Nonlinearity (INL) 1, 2 ±0.0010 ±0.0030 % of FSR fMCLKIN = 2.5 MHz Integral Nonlinearity (INL)2 ±0.0025 ±0.0045 % of FSR fMCLKIN = 6.144 MHz Offset Error (Unipolar, Bipolar)3 ±10 mV Before Calibration Offset Drift vs. Temperature1 ±2.5 µV/°C Gain Error3 ±0.35 % Before Calibration Gain Drift vs. Temperature1 ±3.2 ppm of FS/°C Positive Full-Scale Error3 ±0.5 % of FSR Before Calibration Positive Full-Scale Drift vs. Temp.1 ±3 ppm of FS/°C Bipolar Negative Full-Scale Error4 ±0.0050 % of FSR After Calibration Power Supply Sensitivity ±4 ±10 LSB16 At DC, AIN = 7 V, AVDD = 5 V ± 5% Channel-to-Channel Isolation 100 dB At DC, Maximum ±16.5 V AIN Voltage ADC PERFORMANCE CHOPPING DISABLED Conversion Time Rate 737 15437 Hz Configure via Conv. Time Register No Missing Codes1, 2 24 Bits FW ≥ 8 (Conversion Time ≥ 117 µs) Output Noise See Table 7 Resolution See Table 8 and Table 9 Integral Nonlinearity (INL)2 ±0.0025 % of FSR Offset Error (Unipolar, Bipolar)5 ±15 mV Before Calibration Offset Drift vs. Temperature ±25 µV/°C Gain Error3 ±0.1 % Before Calibration Gain Drift vs. Temperature ±5.3 ppm of FS/°C Positive Full-Scale Error3 ±0.2 % of FSR Before Calibration Positive Full-Scale Drift vs. Temp. ±4 ppm of FS/°C Bipolar Negative Full-Scale Error4 ±0.0050 % of FSR After Calibration Power Supply Sensitivity ±4 LSB16 At DC, AIN = 7 V, AVDD = 5 V ± 5% Channel-to-Channel Isolation 100 dB At DC, Maximum ±16.5 V AIN Voltage ANALOG INPUTS Analog Input Voltage1, 6, 7 ±10 V Range ±10 V 0 V to +10 V Range 0 to +10 V ±5 V Range ±5 V 0 V to +5 V Range 0 to +5 V BIASLO Voltage 0 V BIAS0 to 3, BIASHI Voltage 2.5 V AIN Impedance1, 8 100 124 k Ω AIN Pin, BIASLO Pin Impedance1, 8 87.5 108.5 k Ω |
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