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ADS8402I Datasheet(PDF) 3 Page - Burr-Brown (TI) |
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ADS8402I Datasheet(HTML) 3 Page - Burr-Brown (TI) |
3 / 25 page ADS8402 SLAS154B – DECEMBER 2002 – REVISED MAY 2003 www.ti.com 3 SPECIFICATIONS TA = –40°C to 85°C, +VA = 5 V, +VBD = 3 V or 5 V, Vref = 4.096 V, fSAMPLE = 1.25 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Analog Input Full-scale input voltage (see Note 1) +IN – –IN –Vref Vref V Absolute input voltage +IN –0.2 Vref + 0.2 V Absolute input voltage –IN –0.2 Vref + 0.2 V Common-mode input range ADS8402I (Vref/2) – 0.2 Vref/2 (Vref/2) + 0.2 V Input capacitance 25 pF Input leakage current 0.5 nA SystemPerformance Resolution 16 Bits No missing codes ADS8402I 15 Bits No missing codes ADS8402IB 16 Bits Integral linearity (see Notes 2 and 3) ADS8402I –6 ±2.5 6 LSB Integral linearity (see Notes 2 and 3) ADS8402IB –3.5 ±2 3.5 LSB Differentiallinearity ADS8402I –2 ±1 3 LSB Differentiallinearity ADS8402IB –1 ±0.75 2 LSB Offset error (see Note 4) ADS8402I –3 ±1 3 mV Offset error (see Note 4) ADS8402IB –1.5 ±0.5 1.5 mV Gain error (see Notes 4 and 5) ADS8402I –0.15 0.15 %FS Gain error (see Notes 4 and 5) ADS8402IB –0.098 0.098 %FS Common mode rejection ratio At dc ( ±0.2 V around Vref/2) 80 dB Common-mode rejection ratio +IN – –IN = 1 Vpp at 1 MHz 80 dB Noise 60 µV RMS DC Power supply rejection ratio At 7FFFh output code, +VA = 4.75 V to 5.25 V, Vref = 4.096 V, See Note 4 1 LSB SamplingDynamics Conversion time 610 ns Acquisition time 150 ns Throughput rate 1.25 MHz Aperture delay 2 ns Aperture jitter 25 ps Step response 100 ns Overvoltage recovery 100 ns (1) Ideal input span, does not include gain or offset error. (2) LSB means least significant bit (3) This is endpoint INL, not best fit (4) Measured relative to an ideal full-scale input (+IN – –IN) of 8.192 V (5) This specification does not include the internal reference voltage error and drift. |
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