ADS7813 Low-Power, Serial 16-Bit Sampling Analog-To-Digital Converter | TI.com

ADS7813 (ACTIVE)

Low-Power, Serial 16-Bit Sampling Analog-To-Digital Converter

 

Special note

Please see the ADS8513 for an upgraded version of this device.

Description

The ADS7813 is a low-power, single +5V supply, 16-bit sampling analog-to-digital converter. It contains a complete 16-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7813 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

Features

  • 20µs max CONVERSION TIME
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 12-BIT ADS7812
  • EASY-TO-USE SERIAL INTERFACE
  • 0.3" DIP-16 AND SO-16
  • ±2.0LSB max INL
  • 87dB min SINAD
  • USES INTERNAL OR EXTERNAL REFERENCE
  • MULTIPLE INPUT RANGES
  • 35mW max POWER DISSIPATION
  • NO MISSING CODES
  • 50µW POWER DOWN MODE
  • APPLICATIONS
    • MEDICAL INSTRUMENTATION
    • DATA ACQUISITION SYSTEMS
    • ROBOTICS
    • INDUSTRIAL CONTROL
    • TEST EQUIPMENT
    • DIGITAL SIGNAL PROCESSING
    • DSP SERVO CONTROL

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
ADS7813
16    
40    
1    
SPI    
-40 to 85    
SOIC | 16    
22.37 | 1ku    
35    
16SOIC: 106 mm2: 10.3 x 10.3 (SOIC | 16)    
SAR    
Single-Ended    
   
Ext
Int    
   
10    
-10    
4.75    
5.25    
4.75    
5.25    
2    
89    
89    
-98    
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