ADS7822 Datasheet | Burr-Brown

FEATURES - 2 200k Hz Sampling Rate - micro Power: 1.6m W at 200k Hz 0.54m W at 75k Hz 0.06m W at 7.5k Hz - Power Down: 3μA max - Mini-DIP-8, SO-8, and MSOP-8 Packages - Pseudo-Differential Input - Serial Interface APPLICATIONS - Battery-Operated Systems - Remote Data Acquisition - Isolated Data Acquisition - Simultaneous Sampling, Multichannel Systems 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 operating at the full 200k Hz 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 60μW at 7.5k Hz. 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 50m V 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 multichannel systems, and isolated data acquisition. The ADS7822 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package. VREF +In -In S/H Amp CDAC parator Control Serial Interface DOUT DCLOCK CS/SHDN 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1996- 2007, Texas Instruments Incorporated SBAS062C - JANUARY 1996 - REVISED AUGUST 2007 .ti. This integrated circuit can be damaged by...