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ADS1282SJDJ Datasheet(PDF) 7 Page - Texas Instruments |
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ADS1282SJDJ Datasheet(HTML) 7 Page - Texas Instruments |
7 / 59 page 7 ADS1282-HT www.ti.com SBAS446H – DECEMBER 2009 – REVISED FEBRUARY 2016 Product Folder Links: ADS1282-HT Submit Documentation Feedback Copyright © 2009–2016, Texas Instruments Incorporated Electrical Characteristics (continued) Limit specifications at –55°C to 210°C. Typical specifications at 25°C, AVDD = 2.5 V, AVSS = –2.5 V, ƒCLK (1) = 4.096 MHz, VREFP = 2.5 V, VREFN = –2.5 V, DVDD = 3.3 V, CAPN – CAPP = 10 nF, PGA = 1, and ƒDATA = 1000 SPS, unless otherwise noted. PARAMETER TEST CONDITIONS TA = –55°C to 125°C TA = 210°C (2) UNIT MIN TYP MAX MIN TYP MAX (12) Input frequencies in the range of NƒCLK / 512 ± ƒDATA / 2 (N = 1, 2, 3...) can mix with the modulator chopping clock. In these frequency ranges intermodulation = 120 dB, typ. (13) CLK input stopped. Power-supply rejection AVDD , AVSS ƒPS = 60 Hz (11) 80 90 83 dB DVD D 90 115 101 VOLTAGE REFERENCE INPUTS Reference input voltage (VREF = VREFP – VREFN) 0.5 5 (AVDD – AVSS) + 0.2 0.5 (AVDD – AVSS) + 0.2 V Negative reference input VREF N AVSS – 0.1 VREFP – 0.5 AVSS – 0.1 VREFP – 0.5 V Positive reference input VREF P VREFN + 0.5 AVDD + 0.1 VREFN + 0.5 AVDD + 0.1 V Reference input impedance 85 85 k Ω DIGITAL FILTER RESPONSE Passband ripple ±0.003 dB Passband (–0.01 dB) 0.375 × ƒDATA Hz Bandwidth (–3 dB) 0.413 × ƒDATA Hz High-pass filter corner 0.1 10 Hz Stop band attenuation(12) 135 dB Stop band 0.500 × ƒDATA Hz Group delay Minimum phase filter 5 / ƒDATA s Linear phase filter 31 / ƒDATA Settling time (latency) Minimum phase filter 62 / ƒDATA s Linear phase filter 62 / ƒDATA s DIGITAL INPUT/OUTPUT VIH 0.8 × DVDD DVDD 0.8 × DVDD DVDD V VIL DGND 0.2 × DVDD DGND 0.2 × DVDD V VOH IOH = 1 mA 0.8 × DVDD 0.8 × DVDD V VOL IOL = 1 mA 0.2 × DVDD 0.2 × DVDD V Input leakage 0 < VDIGITAL IN < DVDD ±10 ±10 μA POWER SUPPLY AVSS –2.6 0 –2.6 0 V AVDD AVSS + 4.75 AVSS + 5.25 AVSS + 4.75 AVSS + 5.25 V DVDD 1.75 3.6 1.75 3.6 V AVDD, AVSS current High-resolution mode 4.5 7.2 5.2 10 |mA| Standby mode 68 250 3000 3700 | μA| Power-down mode 68 250 3000 3700 | μA| DVDD current All modes 0.6 1.5 1.2 2 mA Modulator mode 0.1 1.1 mA Standby mode 73 175 576 950 μA Power-down mode(13) 32 120 186 240 μA |
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