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ADS807E Datasheet(PDF) 1 Page - Texas Instruments |
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ADS807E Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page 12-Bit, 53MHz Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q SPURIOUS-FREE DYNAMIC RANGE: 82dB at 10MHz fIN q HIGH SNR: 67.5dB (2Vp-p), 69dB (3Vp-p) q LOW POWER: 335mW q INTERNAL OR EXTERNAL REFERENCE q LOW DNL: 0.5LSB q FLEXIBLE INPUT RANGE: 2Vp-p to 3Vp-p q SSOP-28 PACKAGE DESCRIPTION The ADS807 is a high-speed, high dynamic range, 12-bit pipelined Analog-to-Digital (A/D) converter. This con- verter includes a high-bandwidth track-and-hold that gives excellent spurious performance up to and beyond the Nyquist rate. The differential nature of this track-and-hold and A/D converter circuitry minimizes even-order harmonics and gives excellent common-mode noise immunity. The track-and-hold can also be operated single-ended. The ADS807 provides for setting the full-scale range of the converter without any external reference circuitry. The inter- nal reference can be disabled allowing low drive, internal references to be used for improved tracking in multichannel systems. The ADS807 provides an over-range indicator flag to indicate an input signal that exceeds the full-scale input range of the converter. This flag can be used to reduce the gain of front end gain control circuitry. There is also an output enable pin to allow for multiplexing and testability on a PC board. The ADS807 employs digital error correction techniques to provide excellent differential linearity for demanding imaging applications. APPLICATIONS q COMMUNICATIONS IF PROCESSING q COMMUNICATIONS BASESTATIONS q TEST EQUIPMENT q MEDICAL IMAGING q VIDEO DIGITIZING q CCD DIGITIZING ADS8 07E Pipelined A/D Converter Internal Reference Optional External Reference Timing Circuitry Error Correction Logic 3-State Outputs T/H D0 • • • D11 CLK ADS807 OE IN INT/EXT IN CM +2.5V +2.5V +3V +2V +2V +3V FS SEL (Opt.) ADS807 SBAS072A – JANUARY 1999 – REVISED JULY 2002 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 © 1999, 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. |
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