ADS804

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12-Bit, 10-MSPS Analog-to-Digital Converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 10 Resolution (Bits) 12 Number of input channels 1 Interface type Parallel CMOS, TTL Analog input BW (MHz) 270 Features Low Power Rating Catalog Input range (Vp-p) 2, 5 Power consumption (Typ) (mW) 180 Architecture Pipeline SNR (dB) 69 ENOB (Bits) 11 SFDR (dB) 80 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: 80dB at NYQUIST
  • HIGH SNR: 69dB
  • LOW POWER: 180mW
  • LOW DLE: ±0.3LSB
  • FLEXIBLE INPUT RANGE
  • OVERRANGE INDICATOR
  • APPLICATIONS
    • IF AND BASEBAND DIGITIZATION
    • CCD IMAGING
    • SCANNERS
    • TEST INSTRUMENTATION

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Description

The ADS804 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 ADS804 is also pin-compatible with the 5MHz ADS803 and the 20MHz ADS805.

The ADS804 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 external reference. The ADS804 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 ADS804 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 ADS804 is available in a SSOP-28 package.

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Technical documentation

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Type Title Date
* Datasheet ADS804: 12-Bit, 10MHz Sampling Analog-To-Digital Converter datasheet (Rev. B) Jul. 18, 2002
Technical article Keys to quick success using high-speed data converters Oct. 13, 2020
Technical article How to achieve fast frequency hopping Mar. 03, 2019
Technical article RF sampling: Learning more about latency Feb. 09, 2017
Technical article Why phase noise matters in RF sampling converters Nov. 28, 2016
User guide DEM-ADS80xU Evaluation Fixture (Rev. A) Apr. 05, 2007

Design & development

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Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL 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

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