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ADS803

Part Number	ADS803
Manufacturer	Burr-Brown Corporation
Description	12-Bit/ 5MHz Sampling ANALOG-TO-DIGITAL CONVERTER
Published	Mar 23, 2005
Detailed Description	ADS803E ADS803 SBAS074B – JANUARY 1997 – REVISED SEPTEMBER 2002 12-Bit, 5MHz Sampling ANALOG-TO-DIGITAL CONVERTER FEA...
Datasheet	ADS803 PDF File

Overview

ADS803E ADS803 SBAS074B – JANUARY 1997 – REVISED SEPTEMBER 2002 12-Bit, 5MHz Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q HIGH SFDR: 82dB at NYQUIST q HIGH SNR: 69dB q LOW POWER: 115mW q LOW DLE: 0.
25LSB q FLEXIBLE INPUT RANGE q OVER-RANGE INDICATOR DESCRIPTION The ADS803 is a high-speed, high dynamic range, 12-bit pipelined Analog-to-Digital (A/D) converter.
This converter includes a high-bandwidth track-and-hold that gives excellent spurious performance up to and beyond the Nyquist rate.
This high-bandwidth, linear track-and-hold minimizes harmonics and has low jitter, leading to excellent SNR performance.
The ADS803 is also pin-compatible with the 10MHz ADS804 and the 20MHz ADS805.
The ADS803 provides an internal reference and can be programmed for a 2Vp-p input range for the best spurious performance and ease of driving.
Alternatively, the 5Vp-p input range can be used for the lowest input referred noise of +VS APPLICATIONS q IF AND BASEBAND DIGITIZATION q CCD IMAGING SCANNERS q TEST INSTRUMENTATION 0.
09LSBs rms giving superior imaging performance.
There is also a capability to set the input range in between the 2Vp-p and 5Vp-p input ranges or to use an external reference.
The ADS803 also provides an over-range indicator flag to indicate an input range that exceeds the full-scale input range of the converter.
This flag can be used to reduce the gain of the frontend gain-ranging circuitry.
The ADS803 employs digital error-correction techniques to provide excellent differential linearity for demanding imaging applications.
Its low distortion and high SNR give the extra margin needed for communications, medical imaging, video, and test instrumentation applications.
The ADS803 is available in an SSOP-28 package.
CLK VDRV ADS803 Timing Circuitry VIN IN IN T&H CM 12-Bit Pipelined ADC Error Correction Logic D0 3-State Outputs ••• D11 Reference Ladder and Driver Reference and Mode Select OVR REFT VREF SEL REFB OE Please be aware that an imp...

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