ADS7808 12-Bit 10us Serial CMOS Sampling Analog-to-Digital Converter | TI.com

ADS7808 (ACTIVE) 12-Bit 10us Serial CMOS Sampling Analog-to-Digital Converter

 

Recommended alternative parts

  • ADS8508  - The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device.   12-Bit, 250kHz, Drop-in Upgrade for ADS7808
  • ADS8508  -  This is the upgraded version of this device

Description

The ADS7808 is a complete 12-bit sampling analog-to-digital using state-of-the-art CMOS structures. It contains a 12-bit capacitor-based SAR A/D with S/H, reference, clock, and a serial data interface. Data can be output using the internal clock, or can be synchronized to an external data clock. The ADS7808 also provides an output synchronization pulse for ease of use with standard DSP processors.

The ADS7808 is specified at a 100kHz sampling rate, and guaranteed 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 a single +5V supply, with power dissipation under 100mW.

The ADS7808 is available in a 0.3" SO-20, fully specified for operation over the industrial –40°C to +85°C range.

Features

  • 100kHz SAMPLING RATE
  • 72dB SINAD WITH 45kHz INPUT
  • ±1/2 LSB INL AND DNL
  • SIX SPECIFIED INPUT RANGES
  • SERIAL OUTPUT
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 16-BIT ADS7809
  • 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
ADS7808 Order now 12     100     1     Parallel     -40 to 85     SOIC | 20     21.07 | 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     0.45     73     -90     Catalog