ADS7824 4-Channel, 12-Bit Sampling CMOS A/D Converter | TI.com

ADS7824 (ACTIVE) 4-Channel, 12-Bit Sampling CMOS A/D Converter

4-Channel, 12-Bit Sampling CMOS A/D Converter - ADS7824
Datasheet Errata
 

Description

The ADS7824 can acquire and convert 12 bits to within ±0.5 LSB in 25µs max while consuming only 50mW max. Laser-trimmed scaling resistors provide the standard industrial ±10V input range and channel-to-channel matching of ±0.1%. The ADS7824 is a low-power 12-bit sampling A/D with a four channel input multiplexer, S/H, clock, reference, and a parallel/serial microprocessor interface. It can be configured in a continuous conversion mode to sequentially digitize all four channels. The 28-pin ADS7824 is available in a plastic 0.3" DIP and in a SOIC, both fully specified for operation over the industrial –40°C to +85°C range.

Features

  • 25µs max SAMPLING AND CONVERSION
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 16-BIT ADS7825
  • PARALLEL AND SERIAL DATA OUTPUT
  • 28-PIN 0.3" PLASTIC DIP AND SOIC
  • ±0.5 LSB max INL AND DNL
  • 50mW max POWER DISSIPATION
  • 50µW POWER DOWN MODE
  • ±10V INPUT RANGE, FOUR CHANNEL MULTIPLEXER
  • CONTINUOUS CONVERSION MODE

Note: Recommended Voltage Reference: REF02 and REF102

WEBENCH® Designer ADS7824



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
ADS7824 Order now 12     40     4     Parallel
Serial    
-40 to 85     SOIC | 28     19.68 | 1ku     50     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)     SAR     Single-Ended     Multiplexed     Ext
Int    
    10     -10     4.75     5.25     4.75     5.25     0.5     73     -90     Catalog