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

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADS7824
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    
73    
-90    
Catalog    

Design tool

WEBENCH® Designer ADS7824