ADS7809 16-Bit 10us Serial CMOS Sampling Analog-to-Digital Converter | TI.com

ADS7809 (ACTIVE) 16-Bit 10us Serial CMOS Sampling Analog-to-Digital Converter

 

Recommended alternative parts

  • ADS8509  - The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device.   16-Bit, 250kHz, Drop-in Upgrade for ADS7809
  • ADS8509  -  This is the upgraded version of this device

Description

The ADS7809 is a complete 16-bit sampling Analog-to-Digital (A/D) converter using state-of-the-art CMOS structures. It contains a 16-bit capacitor-based Successive Approximation Register (SAR) A/D converter with sample-and-hold, reference, clock, and a serial data interface. Data can be outputted using the internal clock, or can be synchronized to an external data clock. The ADS7809 also provides output synchronization pulse for ease of use with standard DSP processors.

The ADS7809 is specified at a 100kHz sampling rate, and specified over the full temperature range. Laser-trimmed scaling resistors provide various input ranges including ±10V and 0V to 5V, while an innovative design operates from single +5V supply, with power dissipation under 100mW.

The ADS7809 is available in a 0.3" SO-20, and is fully specified for operation over the industrial –40°C to +85°C range.

Features

  • 100kHz SAMPLING RATE
  • 86dB SINAD WITH 20kHz INPUT
  • ±2LSB INL
  • DNL: 16 Bits No Missing Codes
  • SIX SPECIFIED INPUT RANGES
  • SERIAL OUTPUT
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 12-BIT ADS7808
  • USES INTERNAL OR EXTERNAL REFERENCE
  • 100mW MAX POWER DISSIPATION
  • 0.3" SO-20
  • SIMPLE DSP INTERFACE

Note: Recommended Voltage Reference: REF02 and REF102
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Parametrics

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Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS7809 Order now 16     100     1     Serial     -40 to 85     SOIC | 20     16.00 | 1ku     81.5     20SOIC: 132 mm2: 10.3 x 12.8 (SOIC | 20)     SAR     Single-Ended         Ext
Int    
    10     -10     4.75     5.25     4.75     5.25     2     88     -100     Catalog