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ADS7809PB Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7809PB Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page 16-Bit 10 µs Serial CMOS Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q 100kHz SAMPLING RATE q 86dB SINAD WITH 20kHz INPUT q ±2LSB INL q DNL: 16 Bits No Missing Codes q SIX SPECIFIED INPUT RANGES q SERIAL OUTPUT q SINGLE +5V SUPPLY OPERATION q PIN-COMPATIBLE WITH 12-BIT ADS7808 q USES INTERNAL OR EXTERNAL REFERENCE q 100mW MAX POWER DISSIPATION q 0.3" SO-20 q SIMPLE DSP INTERFACE DESCRIPTION The ADS7809 is a complete 16-bit sampling Analog-to- Digital (A/D) converter using state-of-the-art CMOS struc- tures. It contains a 16-bit capacitor-based Successive Ap- proximation Register (SAR) A/D converter with sample-and- hold, reference, clock, and a serial data interface. Data can be outputted using the internal clock, or can be synchronized to an external data clock. The ADS7809 also provides an output synchronization pulse for ease of use with standard DSP processors. The ADS7809 is specified at a 100kHz sampling rate, and specified over the full temperature range. Laser-trimmed scaling resistors provide various input ranges including ±10V and 0V to 5V, while an innovative design operates from a single +5V supply, with power dissipation under 100mW. The ADS7809 is available in a 0.3" SO-20, and is fully specified for operation over the industrial –40 °C to +85°C range. 10k Ω CDAC 4k Ω 20k Ω 5k Ω Internal +2.5V Ref Clock BUSY Data Clock Serial Data Successive Approximation Register and Control Logic Serial Data Out Comparator Buffer 20k Ω R/C CS Power Down R1 IN R2 IN R3 IN REF CAP ADS7809 SBAS017C – NOVEMBER 1996 – REVISED OCTOBER 2006 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 © 1996-2006, 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. ADS 7809 |
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