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ADuCM331WDCPZ Datasheet(PDF) 5 Page - Analog Devices |
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ADuCM331WDCPZ Datasheet(HTML) 5 Page - Analog Devices |
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5 / 16 page  Data Sheet ADuCM330/ADuCM331 Rev. C | Page 5 of 16 TA = −40°C to +115°C TA = +115°C to +125°C1 Parameter Test Conditions/Comments Min Typ Max Typ Unit Voltage Channel1,9 No Missing Codes Valid at all ADC update rates 20 Bits INL From 6 V to 18 V ±10 ±350 ±150 ppm of FSR Offset Error 4,5 Chop off, 1 LSB = 27.4 μV, after two point calibration −160 ±16 +160 LSB Chop on, after two-point calibration, offset measured using 0 V differential into voltage ADC (VADC) auxiliary pins −16 ±4.8 +16 ±4.8 LSB Offset Error Drift6 Chop off ±0.48 ±1 LSB/°C Total Gain Error4,5,7 Includes resistor mismatch −0.25 ±0.06 +0.25 ±0.1 % TA = −25°C to +65°C −0.15 ±0.03 +0.15 % Gain Drift8 Includes resistor mismatch drift ±3 ±3 ppm/°C Output Noise10 10 Hz update rate, chop on 50 80 μV rms ADCFLT = 0x00007 180 270 μV rms ADCFLT = 0x08101 280 350 300 μV rms ADCFLT = 0x10001 400 730 470 μV rms Temperature Channel1 No Missing Codes Valid at all ADC update rates 20 Bits INL ±10 ±60 ±15 ppm of FSR Offset Error4,11 Chop off, 1 LSB = 1.14 μV (unipolar mode), after two point calibration −160 ±48 +160 LSB Offset Error4 Chop on −80 +16 +80 ±16 LSB Offset Error Drift Chop off ±0.48 ±0.48 LSB/°C Total Gain Error4,11 −0.25 ±0.06 +0.25 ±0.10 % Gain Drift8 3 3 ppm/°C Output Noise 1 kHz update rate, ADCFLT = 0x00007 7.5 11.25 10 μV rms ADC SPECIFICATIONS, ANALOG INPUT PGASCALE[11:10] = 0x2 Current Channel1 Absolute Input Voltage Range Applies to both IIN+ and IIN− −200 +300 mV Input Voltage Range12 Gain = 4, limited by absolute input voltage range ±300 mV Gain = 8 ±150 mV Gain = 32 ±37.5 mV Input Leakage Current13 −3 +3 ±0.2 nA Input Offset Current13 0.2 0.6 0.4 nA Voltage Channel Absolute Input Voltage Range1 Voltage ADC specifications are valid in this range 6 18 V Input Voltage Range1 0 to 28.8 V VBAT Input Current VBAT = 18 V 5 9 13 11 μA Temperature Channel VREF = (AVDD18, GND_SW) Absolute Input Voltage Range1, 14 100 1500 mV Input Voltage Range1 0 to 1.4 V VTEMP Input Current1 2.5 10 nA VOLTAGE REFERENCE Internal Reference 1.2 1.2 V Power-Up Time1 0.5 0.5 ms Initial Accuracy1 Measured at TA = 25°C −0.15 +0.15 % Temperature Coefficient1,15 −20 ±5 +20 ±8 ppm/°C Long-Term Stability16 100 ppm/1000 hr |
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