ADS7828 12-Bit, 8-Channel SAR ADC with Internal Reference and I2C Interface | TI.com

ADS7828 (ACTIVE)

12-Bit, 8-Channel SAR ADC with Internal Reference and I2C Interface

 

Description

The ADS7828 is a single-supply, low-power, 12-bit data acquisition device that features a serial I2C interface and an 8-channel multiplexer. The Analog-to-Digital (A/D) converter features a sample-and-hold amplifier and internal, asynchronous clock. The combination of an I2C serial, 2-wire interface and micropower consumption makes the ADS7828 ideal for applications requiring the A/D converter to be close to the input source in remote locations and for applications requiring isolation. The ADS7828 is available in a TSSOP-16 package.

Features

  • 8-CHANNEL MULTIPLEXER
  • 50kHz SAMPLING RATE
  • NO MISSING CODES
  • 2.7V TO 5V OPERATION
  • INTERNAL 2.5V REFERENCE
  • I2C INTERFACE SUPPORTS:
    Standard, Fast, and High-Speed Modes
  • TSSOP-16 PACKAGE
  • APPLICATIONS
    • VOLTAGE-SUPPLY MONITORING
    • ISOLATED DATA ACQUISITION
    • TRANSDUCER INTERFACES
    • BATTERY-OPERATED SYSTEMS
    • REMOTE DATA ACQUISITION

I2C is a trademark of Koninklijke Philps Electronics N.V. All other trademarks are the property of their respective owners.

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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
ADS7828 ADS7823 ADS7828-Q1
12     12     12    
50     50     50    
8     1     8    
I2C     I2C     I2C    
-40 to 85     -40 to 85     -40 to 85    
TSSOP | 16     VSSOP | 8     TSSOP | 16    
3.58 | 1ku     2.99 | 1ku     4.22 | 1ku    
0.675     1.2     0.675    
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
SAR     SAR     SAR    
Pseudo-Differential
Single-Ended    
Single-Ended     Pseudo-Differential
Single-Ended    
Multiplexed    
   
Multiplexed    
Ext
Int    
Ext     Ext
Int    
   
   
   
5.25     5.25     5.25    
0     0     0    
2.7     4.75     2.7    
5.25     5.25     5.25    
2.7     4.75     2.7    
5.25     5.25     5.25    
1     1     1    
71     71     71    
72     72     72    
-82     -82     -82    
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