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AD7682BCPZ Datasheet(PDF) 4 Page - Analog Devices |
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AD7682BCPZ Datasheet(HTML) 4 Page - Analog Devices |
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4 / 32 page  AD7682/AD7689 Data Sheet Rev. D | Page 4 of 32 SPECIFICATIONS VDD = 2.3 V to 5.5 V, VIO = 1.8 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted. Table 2. AD7689A AD7682B/AD7689B Parameter Conditions/Comments Min Typ Max Min Typ Max Unit RESOLUTION 16 16 Bits ANALOG INPUT Voltage Range Unipolar mode 0 +VREF 0 +VREF V Bipolar mode −VREF/2 +VREF/2 −VREF/2 +VREF/2 Absolute Input Voltage Positive input, unipolar and bipolar modes −0.1 VREF + 0.1 −0.1 VREF + 0.1 V Negative or COM input, unipolar mode −0.1 +0.1 −0.1 +0.1 V Negative or COM input, bipolar mode VREF/2 − 0.1 VREF/2 VREF/2 + 0.1 VREF/2 − 0. 1 VREF/2 VREF/2 + 0.1 V Analog Input CMRR fIN = 250 kHz 68 68 dB Leakage Current at 25°C Acquisition phase 1 1 nA Input Impedance1 THROUGHPUT Conversion Rate Full Bandwidth2 VDD = 4.5 V to 5.5 V 0 250 0 250 kSPS VDD = 2.3 V to 4.5 V 0 200 0 200 kSPS ¼ Bandwidth2 VDD = 4.5 V to 5.5 V 0 62.5 0 62.5 kSPS VDD = 2.3 V to 4.5 V 0 50 0 50 kSPS Transient Response Full-scale step, full bandwidth 1.8 1.8 μs Full-scale step, ¼ bandwidth 14.5 14.5 μs ACCURACY No Missing Codes 15 16 Bits Integral Linearity Error −4 +4 −1.5 ±0.4 +1.5 LSB3 Differential Linearity Error −1 ±0.25 +1.5 LSB Transition Noise REF = VDD = 5 V 0.6 0.5 LSB Gain Error4 −32 +32 −8 ±1 +8 LSB Gain Error Match ±2 −4 ±0.5 +4 LSB Gain Error Temperature Drift ±1 ±1 ppm/°C Offset Error4 VDD = 4.5 V to 5.5 V −32 +32 −8 ±1 +8 LSB VDD = 2.3 V to 4.5 V ±32 ±5 LSB Offset Error Match ±2 −4 ±0.5 +4 LSB Offset Error Temperature Drift ±1 ±1 ppm/°C Power Supply Sensitivity VDD = 5 V ± 5% ±1.5 ±1.5 LSB AC ACCURACY5 Dynamic Range 90.5 93.8 dB6 Signal-to-Noise fIN = 20 kHz, VREF = 5 V 90 92.5 93.5 dB fIN = 20 kHz, VREF = 4.096 V, internal REF 89 91 92.3 dB fIN = 20 kHz, VREF = 2.5 V, internal REF 86 87.5 88.8 dB SINAD fIN = 20 kHz, VREF = 5 V 89 91 92.5 dB fIN = 20 kHz, VREF = 5 V, −60 dB input 30.5 33.5 dB fIN = 20 kHz, VREF = 4.096 V internal REF 88 90 91 dB fIN = 20 kHz, VREF = 2.5 V internal REF 86 87 88.4 dB |
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