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ADS7806 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7806 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page Low-Power 12-Bit Sampling CMOS ANALOG-to-DIGITAL CONVERTER DESCRIPTION The ADS7806 is a low-power, 12-bit, sampling Analog-to- Digital (A/D) converter using state of the art CMOS structures. It contains a complete 12-bit, capacitor-based, Successive Approximation Register (SAR) A/D converter with sample- and-hold, clock, reference, and a microprocessor interface with parallel and serial output drivers. The ADS7806 can acquire and convert to full 12-bit accuracy in 25 µs max, while consuming only 35mW max. Laser trimmed scaling resistors provide standard industrial input ranges of ±10V and 0V to +5V. In addition, a 0V to +4V range allows development of complete single-supply systems. The ADS7806 is available in a 0.3" DIP-28 and SO-28, both fully specified for operation over the industrial –40 °C to +85 °C temperature range. FEATURES q POWER DISSIPATION: 35mW max q POWER-DOWN MODE: 50 µW q ACQUISITION AND CONVERSION: 25 µs max q ±1/2 LSB MAX INL AND DNL q 72dB MIN SINAD WITH 1kHz INPUT q INPUT RANGES: ±10V, 0V to +5V, and 0V TO +4V q SINGLE +5V SUPPLY OPERATION q PARALLEL AND SERIAL DATA OUTPUT q PIN-COMPATIBLE WITH THE 16-BIT ADS7807 q USES INTERNAL OR EXTERNAL REFERENCE q 0.3" DIP-28 AND SO-28 ADS7806 SBAS021B – NOVEMBER 1992 – REVISED SEPTEMBER 2003 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 © 1992-2003, 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. ADS7806 ADS7 806 CDAC 6k Ω 40k Ω 10k Ω BUSY Parallel and Serial Data Out Comparator Buffer 20k Ω R1 IN R2 IN REF Successive Approximation Register and Control Logic Clock Power Down BYTE CS R/C 40k Ω Internal +2.5V Ref Reference Power-Down Serial Data Clock Parallel Data CAP Serial Data 8 All trademarks are the property of their respective owners. |
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