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ADS8484IRGZRG4 bảng dữ liệu(PDF) 3 Page - Texas Instruments |
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ADS8484IRGZRG4 bảng dữ liệu(HTML) 3 Page - Texas Instruments |
3 / 32 page www.ti.com SPECIFICATIONS ADS8484 SLAS511 – NOVEMBER 2007 TA = –40°C to 85°C, +VA = 5 V, +VBD = 3 V or 5 V, Vref = 4.096 V, fSAMPLE = 1.25 MSPS (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Full-scale input voltage(1) +IN – (–IN) –Vref Vref V +IN –0.2 Vref + 0.2 Absolute input voltage V –IN –0.2 Vref + 0.2 Common-mode input range (Vref)/2 – 0.2 (Vref)/2 (Vref)/2 + 0.2 V Input capacitance 65 pF Input leakage current 1 nA SYSTEM PERFORMANCE Resolution 18 Bits ADS8484I 18 No missing codes Bits ADS8484IB 18 ADS8484I –4 ±1.5 4 LSB INL Integral linearity (2) (18 bit)(3) ADS8484IB –2.5 ±1.5 2.5 ADS8484I –1 –0.6/0.8 2 LSB DNL Differential linearity (18 bit) ADS8484IB –1 –0.6/0.8 1.5 ADS8484I –2 ±1 2 Offset error(4) mV ADS8484IB –0.5 ±0.1 0.5 ADS8484I ±0.05 Offset error temperature drift ppm/ °C ADS8484IB ±0.05 ADS8484I Vref = 4.096 V –0.1 ±0.035 0.1 %FS EG Gain error(4) (5) ADS8484IB Vref = 4.096 V –0.1 ±0.035 0.1 %FS ADS8484I ±0.5 Gain error temperature drift ppm/ °C ADS8484IB ±0.5 At dc (±0.2 V around Vref/2) 60 CMRR Common-mode rejection ratio dB +IN – (–IN) = 1 Vpp at 1.25 MHz 55 Noise 30 µV RMS Power supply rejection ratio At 1FFFFh output code 60 dB SAMPLING DYNAMICS Conversion time 575 610 ns Acquisition time 175 200 ns Throughput rate 1.25 MHz Aperture delay 4 ns Aperture jitter 5 ps Step response 150 ns Over voltage recovery 150 ns (1) Ideal input span, does not include gain or offset error. (2) This is endpoint INL, not best fit. (3) LSB means least significant bit (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. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS8484 |
Số phần tương tự - ADS8484IRGZRG4 |
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Mô tả tương tự - ADS8484IRGZRG4 |
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