ADS7806 Low-Power 12-Bit Sampling CMOS Analog-to-Digital Converter | TI.com

ADS7806 (ACTIVE) Low-Power 12-Bit Sampling CMOS Analog-to-Digital Converter

 

Special note

Please see the ADS8506 for an upgraded version of this device.

Description

The ADS7806 is a low-power, 12-bit, sampling Analog-to-Digital (A/D) converter using state of the art CMOS structures. It contains a complete 12-bit, capacitor-based, Successive Approximation Register (SAR) A/D converter with sample-and-hold, clock, reference, and a microprocessor interface with parallel and serial output drivers.

The ADS7806 can acquire and convert to full 12-bit accuracy in 25us max, while consuming only 35mW max. Laser trimmed scaling resistors provide standard industrial input ranges of ±10V and 0V to +5V. In addition, a 0V to +4V range allows development of complete single-supply systems.

The ADS7806 is available in a 0.3" DIP-28 and SO-28, both fully specified for operation over the industrial –40°C to +85°C temperature range.

Features

  • POWER DISSIPATION: 35mW max
  • POWER-DOWN MODE: 50 µW
  • ACQUISITION AND CONVERSION: 25 µs max
  • ±1/2 LSB MAX INL AND DNL
  • 72dB MIN SINAD WITH 1kHz INPUT
  • INPUT RANGES: ±10V, 0V to +5V, and 0V TO +4V
  • SINGLE +5V SUPPLY OPERATION
  • PARALLEL AND SERIAL DATA OUTPUT
  • PIN-COMPATIBLE WITH THE 16-BIT ADS7807
  • USES INTERNAL OR EXTERNAL REFERENCE
  • 0.3" DIP-28 AND SO-28

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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
ADS7806 Order now 12     40     1     Parallel     -40 to 85     SOIC | 28     31.52 | 1ku     28     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)     SAR     Single-Ended         Ext
Int    
    10     -10     4.75     5.25     4.75     5.25     0.45     73     -90     Catalog