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ADS8329 Arkusz danych(PDF) 5 Page - Burr-Brown (TI) |
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ADS8329 Arkusz danych(HTML) 5 Page - Burr-Brown (TI) |
5 / 42 page www.ti.com SPECIFICATIONS ADS8329 ADS8330 SLAS516 – DECEMBER 2006 T A = –40°C to 85°C, +VBD = +VA × 1.5 to +1.65 V, Vref = 2.5 V, fSAMPLE = 1 MHz for 3 V ≤ +VA ≤ 3.6 V, fSAMPLE = 900 kHz for 3 V < +VA ≤ 2.7 V using external clock (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Full-scale input voltage (1) +IN – (–IN) or (+INx – COM) 0 +Vref V +IN, +IN0, +IN1 AGND – 0.2 +VA + 0.2 Absolute input voltage V –IN or COM AGND – 0.2 AGND + 0.2 Input capacitance 40 45 pF No ongoing conversion, Input leakage current -1 1 nA DC Input At dc 108 Input channel isolation, ADS8330 only dB VI = ±1.25 Vpp at 50 kHz 101 SYSTEM PERFORMANCE Resolution 16 Bits No missing codes 16 Bits ADS8329IB, –1.75 ±1 1.75 ADS8330IB INL Integral linearity LSB(2) ADS8329I, ADS8330I –2.5 ±1.5 2.5 ADS8329IB, – 1 ±0.5 1 Differential ADS8330IB DNL LSB(2) linearity ADS8329I, ADS8330I –1 ±0.8 2 ADS8329IB, – 0.5 ±0.05 0.5 ADS8330IB EO Offset error(3) mV ADS8329I, ADS8330I –0.8 ±0.2 0.8 Offset error drift FSR = 2.5 V 0.8 PPM/°C EG Gain error – 0.25 –0.04 0.25 %FSR Gain error drift 0.5 PPM/°C At dc 70 CMRR Common mode rejection ratio dB VI = 0.4 Vpp at 1 MHz 50 Noise 33 µV RMS PSRR Power supply rejection ratio At FFFFh output code(3) 78 dB SAMPLING DYNAMICS tCONV Conversion time 18 CCLK tSAMPLE1 Manual trigger 3 Acquisition time CCLK tSAMPLE2 Auto trigger 3 Throughput rate 1 MHz Aperture delay 5 ns Aperture jitter 10 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) Measured relative to an ideal full-scale input [+IN – (–IN)] of 2.5 V when +VA = 3 V. 5 Submit Documentation Feedback |
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