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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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ADS7822-Q1 bảng dữ liệu(PDF) 3 Page - Texas Instruments |
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ADS7822-Q1 bảng dữ liệu(HTML) 3 Page - Texas Instruments |
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3 / 23 page  ELECTRICAL CHARACTERISTICS: +VCC = 2.7 V ADS7822-Q1 www.ti.com .................................................................................................................................................................................................. SGLS299 – MARCH 2009 At –40°C to 85°C, +VCC = 2.7 V, VREF = 2.5 V, fSAMPLE = 75 kHz, and fCLK = 16 × fSAMPLE (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Full-scale input span +In – (–In) 0 VREF V +In – GND –0.2 VCC + 0.2 V Absolute input range –In – GND –0.2 +1.0 V Capacitance 25 pF Leakage current ±1 µA SYSTEM PERFORMANCE Resolution 12 Bits No missing codes 11 Bits Integral linearity error –2 ±0.5 +2 LSB(1) Differential linearity error –2 ±0.5 +2 LSB Offset error –3 +3 LSB Gain error –3 +3 LSB Noise 33 µVrms Power-supply rejection 82 dB SAMPLING DYNAMICS Conversion time 12 Clk Cycles Acquisition time(2) 1.5 Clk Cycles Throughput rate 75 kHz DYNAMIC CHARACTERISTICS Total harmonic distortion VIN = 2.5 VPP at 1 kHz –82 dB SINAD VIN = 2.5 VPP at 1 kHz 71 dB Spurious-free dynamic range VIN = 2.5 VPP at 1 kHz 86 dB REFERENCE OUTPUT Voltage range 0.05 VCC V CS = GND, fSAMPLE = 0 Hz 5 G Ω Resistance CS = VCC 5 G Ω At code 710h 8 40 µA Current drain fSAMPLE = 7.5 kHz 0.8 µA CS = VCC 0.001 3 µA DIGITAL INPUT/OUTPUT Logic family CMOS VIH IIH = +5 µA 2.0 5.5 V VIL IIL = +5 µA –0.3 0.8 V Logic levels VOH IOH = –250 µA 2.1 V VOL IOL = 250 µA 0.4 V Data format Straight Binary (1) LSB means least significant bit. With VREF equal to 2.5 V, one LSB is 0.61 mV. (2) Not production tested Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS7822-Q1 |
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