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ADS8322Y/250 bảng dữ liệu(PDF) 3 Page - Texas Instruments |
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ADS8322Y/250 bảng dữ liệu(HTML) 3 Page - Texas Instruments |
3 / 19 page ADS8322 www.ti.com SBAS215A – JULY 2001 – REVISED JANUARY 2010 ELECTRICAL CHARACTERISTICS: +VA = +5V At –40°C to +85°C, +VA = +5V, VREF = +2.5V, fSAMPLE = 500kHz, and fCLK = 20 • fSAMPLE, unless otherwise specified. ADS8322Y ADS8322YB(1) PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT RESOLUTION Resolution 16 16 Bits ANALOG INPUTS Full-scale input span(2) +IN – (–IN) 0 +2VREF 0 +2VREF V +IN –0.1 VA + 0.1 –0.1 VA + 0.1 V Absolute input range –IN –0.1 +0.5 –0.1 +0.5 V Capacitance 25 25 pF Leakage current ±1 ±1 nA SYSTEM PERFORMANCE No missing codes 14 15 Bits Integral linearity error ±4 ±8 ±3 ±6 LSBs(3) Offset error ±1.0 ±2 ±0.5 ±1.0 mV Gain error(4) ±0.25 ±0.50 ±0.22 ±0.25 %FSR Common-mode rejection ratio At dc 70 70 dB Noise 60 60 μVRMS Power-supply rejection ratio At FFFFh output code ±3 ±3 LSBs SAMPLING DYNAMICS Conversion time 1.6 1.6 μs Acquisition time 350 350 ns Throughput rate 500 500 kHz Aperture delay 50 50 ns Aperture jitter 20 20 ps Small-signal bandwidth 30 30 MHz Step response 100 100 ns DYNAMIC CHARACTERISTICS Total harmonic distortion(5) VIN = 5VPP at 100kHz –90 –93 dB SINAD VIN = 5VPP at 100kHz 81 83 dB Spurious free dynamic range VIN = 5VPP at 100kHz 94 96 dB REFERENCE OUTPUT Voltage IOUT = 0 2.475 2.50 2.525 2.48 2.50 2.52 V Source current Static load 10 10 μA Drift IOUT = 0 20 20 ppm/°C Line regulation 4.75V ≤ VCC ≤ 5.25V 0.6 0.6 mV REFERENCE INPUT Range 1.5 2.55 1.5 2.55 V Resistance(6) To internal reference voltage 10 10 k Ω (1) Shaded cells indicate different specifications from ADS8322Y. (2) Ideal input span; does not include gain or offset error. (3) LSB means least significant bit, with VREF equal to +2.5V; 1LSB = 76μV. (4) Measured relative to an ideal, full-scale input [+In – (–In)] of 4.9999V. Thus, gain error includes the error of the internal voltage reference. (5) Calculated on the first nine harmonics of the input frequency. (6) Can vary ±30%. Copyright © 2001–2010, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS8322 |
Số phần tương tự - ADS8322Y/250 |
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Mô tả tương tự - ADS8322Y/250 |
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