2 LC MOS 12-Bit, Serial 6 ms a ADC in 8-Pin Package AD7893 FUNCTIONAL BLOCK DIAGRAM FEATURES Fast 12-Bit ADC with 6 ms Conversion Time REF IN V DD 8-Pin Mini-DlP and SOIC Single Supply Operation AD7893 High Speed, Easy-to-Use, Serial Interface On-Chip Track/Hold Amplifier TRACK/ Selection of Input Ranges HOLD SIGNAL V IN SCALING* 12-BIT 610 V for AD7893-10 ADC 62.5 V for AD7893-3 0 V to +2.5 V for AD7893-2 0 V to +5 V for AD7893-5 OUTPUT CONVST REGISTER Low Power: 25 mW typ AGND DGND SCLK SDATA *AD7893-5, AD7893-10, AD7893-3 PRODUCT HIGHLIGHTS GENERAL DESCRIPTION 1. Fast, 12-Bit ADC in 8-Pin Package The AD7893 is a fast, 12-bit ADC that operates from a single The AD7893 contains a 6 s ADC, a track/hold amplifier, +5 V supply and is housed in a small 8-pin mini-DIP and 8-pin control logic and a high speed serial interface, all in an 8-pin SOIC. The part contains a 6 s successive approximation A/D package. This offers considerable space saving over alterna- converter, an on-chip track/hold amplifier, an on-chip clock and tive solutions. a high speed serial interface. 2. Low Power, Single Supply Operation Output data from the AD7893 is provided via a high speed, The AD7893 operates from a single +5 V supply and con- serial interface port. This two-wire serial interface has a serial sumes only 25 mW. This low power, single supply operation clock input and a serial data output with the external serial clock makes it ideal for battery powered or portable applications. accessing the serial data from the part. 3. High Speed Serial Interface In addition to traditional dc accuracy specifications such as lin- The part provides high speed serial data and serial clock lines, earity, full-scale and offset errors, the AD7893 is also specified allowing for an easy, two-wire serial interface arrangement. for dynamic performance parameters, including harmonic dis- tortion and signal-to-noise ratio. The part accepts an analog input range of 10 V (AD7893-10), 2.5 V (AD7893-3), 0 V to +5 V (AD7893-5) or 0 V to +2.5 V (AD7893-2) and operates from a single +5 V supply, consuming only 25 mW typical. The AD7893 is fabricated in Analog Devices Linear Compat- 2 ible CMOS (LC MOS) process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. The part is available in a small, 8-pin, 0.3 wide, plastic or hermetic dual-in-line package (mini-DIP) and in an 8-pin, small outline IC (SOIC). REV. E Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or Tel: 617/329-4700 World Wide Web Site: AD7893* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017 COMPARABLE PARTS DESIGN RESOURCES View a parametric search of comparable parts. AD7893 Material Declaration PCN-PDN Information DOCUMENTATION Quality And Reliability Application Notes Symbols and Footprints AN-381: Obtaining the Best Performance from the AD7893, 12-Bit Serial A/D Converter DISCUSSIONS Data Sheet View all AD7893 EngineerZone Discussions. AD7893: Military Data Sheet AD7893: 12-Bit, Serial 6s ADC in 8-Pin Package Data SAMPLE AND BUY Sheet Visit the product page to see pricing options. Product Highlight 8- to 18-Bit SAR ADCs ... From the Leader in High TECHNICAL SUPPORT Performance Analog Submit a technical question or find your regional support number. REFERENCE MATERIALS Technical Articles DOCUMENT FEEDBACK MS-2210: Designing Power Supplies for High Speed ADC Submit feedback for this data sheet. This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.