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ADS7822 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7822 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 20 page ADS7822 DESCRIPTION The ADS7822 is a 12-bit sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7V to 5.25V supply range. It requires very little power even when oper- ating at the full 75kHz rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power-down mode—the power dissipation is less than 60 µW at 7.5kHz. The ADS7822 also features operation from 2.0V to 5V, a synchronous serial interface, and a pseudo-differential input. The reference voltage can be set to any level within the range of 50mV to VCC. Ultra low power and small size make the ADS7822 ideal for battery-operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multi-channel sys- tems, and isolated data acquisition. The ADS7822 is avail- able in a plastic mini-DIP-8, an SOIC-8, or an MSOP-8 package. 12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q 75kHz SAMPLING RATE q MICRO POWER: 0.54mW at 75kHz 0.06mW at 7.5kHz q POWER DOWN: 3 µA max q MINI-DIP-8, SOIC-8, AND MSOP-8 q PSEUDO-DIFFERENTIAL INPUT q SERIAL INTERFACE SAR Control Serial Interface D OUT Comparator S/H Amp CS/SHDN DCLOCK +In V REF –In CDAC APPLICATIONS q BATTERY-OPERATED SYSTEMS q REMOTE DATA ACQUISITION q ISOLATED DATA ACQUISITION q SIMULTANEOUS SAMPLING, MULTI-CHANNEL SYSTEMS OPA658 ADS7 822 ADS7 822 SBAS062A – JANUARY 1996 – REVISED MARCH 2005 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1996-2005, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. |
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