ADS803

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12-Bit, 5-MSPS Analog-to-Digital Converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 5 Resolution (Bits) 12 Number of input channels 1 Analog input BW (MHz) 270 Features Low Power Rating Catalog Input range (Vp-p) 2, 5 Power consumption (Typ) (mW) 115 Architecture Pipeline SNR (dB) 69 ENOB (Bits) 11 SFDR (dB) 82 Operating temperature range (C) -40 to 85 Input buffer No open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

SSOP (DB) 28 54 mm² 10.5 x 5.3 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • HIGH SFDR: 82dB at NYQUIST
  • HIGH SNR: 69dB
  • LOW POWER: 115mW
  • LOW DLE: 0.25LSB
  • FLEXIBLE INPUT RANGE
  • OVER-RANGE INDICATOR
  • APPLICATIONS
    • IF AND BASEBAND DIGITIZATION
    • CCD IMAGING SCANNERS
    • TEST INSTRUMENTATION

open-in-new Find other High-speed ADCs (>10MSPS)

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 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 front-end 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.

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Technical documentation

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Type Title Date
* Datasheet ADS803: 12-Bit, 5MHz Sampling Analog-To-Digital Converter datasheet (Rev. B) Jul. 18, 2002
Technical articles How to achieve fast frequency hopping Mar. 03, 2019
Technical articles RF sampling: Learning more about latency Feb. 09, 2017
Technical articles Why phase noise matters in RF sampling converters Nov. 28, 2016
Technical articles How to minimize filter loss when you drive an ADC Oct. 20, 2016
User guides DEM-ADS80xU Evaluation Fixture (Rev. A) Apr. 05, 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

CALCULATION TOOLS Download
Jitter and SNR Calculator for ADCs
JITTER-SNR-CALC JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

CAD/CAE symbols

Package Pins Download
SSOP (DB) 28 View options

Ordering & quality

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