ADS850

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

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Product details

Parameters

Sample rate (Max) (MSPS) 10 Resolution (Bits) 14 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, 4 Power consumption (Typ) (mW) 250 Architecture Pipeline SNR (dB) 76 ENOB (Bits) 12.2 SFDR (dB) 85 Operating temperature range (C) -40 to 85 Input buffer Yes open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

TQFP (PFB) 48 81 mm² 9 x 9 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • SELF-CALIBRATING
  • HIGH SFDR: 85dB at NYQUIST
  • HIGH SNR: 76dB
  • LOW POWER: 250mW
  • DIFFERENTIAL OR SINGLE-ENDED INPUTS
  • +3V/+5V LOGIC I/O COMPATIBLE
  • FLEXIBLE INPUT RANGE
  • OVER-RANGE INDICATOR
  • INTERNAL OR EXTERNAL REFERENCE
  • APPLICATIONS
    • IF AND BASEBAND DIGITIZATION
    • CCD IMAGING SCANNERS
    • TEST INSTRUMENTATION
    • IR IMAGING

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Description

The ADS850 is a high dynamic range, 14-bit Analog-to-Digital Converter (ADC) that utilizes a fully differential input, allowing for either single-ended or differential input interface over varying input spans. This converter features digital error correction techniques ensuring 14-bit linearity and a calibration procedure that corrects for capacitor and gain mismatches. The ADS850 also includes a high-bandwidth track-and-hold that provides excellent spurious performance up to and beyond the Nyquist rate.

The ADS850 provides an internal reference that can be programmed for a 2Vp-p input range for the best spurious performance and ease of driving. Alternatively, the 4Vp-p input range can be used for the lowest input referred noise, offering superior signal-to-noise performance for imaging applications. There is also the capability to set the range between 2Vp-p and 4Vp-p, or to use an external reference. The ADS850 also provides an over-range indicator flag to indicate if the input has exceeded the full-scale input range of the converter.

The low distortion and high signal-to-noise performance provide the extra margin needed for communications, imaging, and test instrumentation applications. The ADS850 is available in a TQFP-48 package.

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Technical documentation

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Type Title Date
* Datasheet ADS850: 14-Bit 10 MSPS Self-Calibrating Analog-to-Digital Converter datasheet (Rev. C) 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 ADS850-EVM: Demo Board Jun. 01, 2001

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
TQFP (PFB) 48 View options

Ordering & quality

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