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 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
ADS7806
12    
40    
1    
Parallel    
-40 to 85    
SOIC | 28    
24.55 | 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    
73    
-90    
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