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AD7893AR-5 bảng dữ liệu(PDF) 1 Page - Analog Devices |
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1 / 13 page FUNCTIONAL BLOCK DIAGRAM AGND VDD DGND SCLK CONVST AD7893 VIN SDATA REF IN TRACK/ HOLD *AD7893-5, AD7893-10, AD7893-3 SIGNAL SCALING* 12-BIT ADC OUTPUT REGISTER 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a LC2MOS 12-Bit, Serial 6 s ADC in 8-Pin Package AD7893 FEATURES Fast 12-Bit ADC with 6 s Conversion Time 8-Pin Mini-DlP and SOIC Single Supply Operation High Speed, Easy-to-Use, Serial Interface On-Chip Track/Hold Amplifier Selection of Input Ranges 10 V for AD7893-10 2.5 V for AD7893-3 0 V to +2.5 V for AD7893-2 0 V to +5 V for AD7893-5 Low Power: 25 mW typ GENERAL DESCRIPTION The AD7893 is a fast, 12-bit ADC that operates from a single +5 V supply and is housed in a small 8-pin mini-DIP and 8-pin SOIC. The part contains a 6 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface. Output data from the AD7893 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part. In addition to traditional dc accuracy specifications such as lin- earity, full-scale and offset errors, the AD7893 is also specified 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- ible CMOS (LC 2MOS) 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). One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 PRODUCT HIGHLIGHTS 1. Fast, 12-Bit ADC in 8-Pin Package The AD7893 contains a 6 µs ADC, a track/hold amplifier, control logic and a high speed serial interface, all in an 8-pin package. This offers considerable space saving over alterna- tive solutions. 2. Low Power, Single Supply Operation The AD7893 operates from a single +5 V supply and con- sumes only 25 mW. This low power, single supply operation makes it ideal for battery powered or portable applications. 3. High Speed Serial Interface The part provides high speed serial data and serial clock lines, allowing for an easy, two-wire serial interface arrangement. |
Số phần tương tự - AD7893AR-5 |
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Mô tả tương tự - AD7893AR-5 |
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