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AD7689 Datasheet(PDF) 3 Page - Analog Devices |
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AD7689 Datasheet(HTML) 3 Page - Analog Devices |
3 / 28 page AD7682/AD7689 Rev. 0 | Page 3 of 28 SPECIFICATIONS VDD = 2.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted. Table 2. AD7682B/AD7689B Parameter Conditions/Comments Min Typ Max Unit RESOLUTION 16 Bits ANALOG INPUT Voltage Range Unipolar mode 0 +VREF V Bipolar mode −VREF/2 +VREF/2 Absolute Input Voltage Positive input, unipolar and bipolar modes −0.1 VREF + 0.1 V Negative or COM input, unipolar mode −0.1 +0.1 Negative or COM input, bipolar mode VREF/2 − 0.1 VREF/2 VREF/2 + 0.1 Analog Input CMRR fIN = 250 kHz 68 dB Leakage Current at 25°C Acquisition phase 1 nA Input Impedance1 THROUGHPUT Conversion Rate Full Bandwidth2 VDD = 4.5 V to 5.5 V 0 250 kSPS VDD = 2.7 V to 4.5 V 0 200 kSPS VDD = 2.3 V to 2.7 V 0 190 kSPS ¼ Bandwidth2 VDD = 4.5 V to 5.5 V 0 60 kSPS VDD = 2.7 V to 4.5 V 0 50 kSPS VDD = 2.3 V to 2.7 V 0 47 kSPS Transient Response Full-scale step, full bandwidth 1.8 μs Full-scale step, ¼ bandwidth 14.5 μs ACCURACY No Missing Codes 16 Bits Integral Linearity Error −1.5 ±0.5 +1.5 LSB3 Differential Linearity Error −1 ±0.25 +1.5 LSB Transition Noise REF = VDD = 5 V 0.5 LSB Gain Error4 −30 ±2 +30 LSB Gain Error Match −2 ±0.5 +2 LSB Gain Error Temperature Drift ±1 ppm/°C Offset Error4 ±2 LSB Offset Error Match −2 ±0.5 +2 LSB Offset Error Temperature Drift ±1 ppm/°C Power Supply Sensitivity VDD = 5 V ± 5% ±1.5 LSB |
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