ADS7817 12-Bit Differential Input Micro Power Sampling Analog-to-Digital Converter | TI.com

ADS7817 (ACTIVE)

12-Bit Differential Input Micro Power Sampling Analog-to-Digital Converter

 

Description

The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.

The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.

Features

  • BIPOLAR INPUT RANGE
  • TRUE DIFFERENTIAL INPUT
  • 200kHz SAMPLING RATE
  • MICRO POWER: 2.3mW at 200kHz
  • POWER DOWN: 3uA Max
  • AVAILABLE IN MSOP-8 PACKAGE
  • SERIAL INTERFACE
  • AC COMMON-MODE REJECTION
  • APPLICATIONS
    • TRANSDUCER INTERFACE
    • BATTERY OPERATED SYSTEMS
    • REMOTE DATA ACQUISITION
    • ISOLATED DATA ACQUISITION
    • AC MOTOR CONTROL

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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
ADS7817 ADS1286 ADS7816 ADS7822 ADS7822-Q1 ADS7826 ADS7827 ADS7829
12     12     12     12     12     10     8     12    
200     20     200     200     200     200     250     125    
1     1     1     1     1     1     1     1    
Serial     SPI     Serial     Serial     Serial     SPI     I2C     SPI    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
SOIC | 8
VSSOP | 8    
SOIC | 8     SOIC | 8
VSSOP | 8    
SOIC | 8
VSSOP | 8    
VSSOP | 8     SON | 8     SON | 8     SON | 8    
2.05 | 1ku     2.94 | 1ku     2.31 | 1ku     1.63 | 1ku     1.91 | 1ku     1.68 | 1ku     1.00 | 1ku     1.50 | 1ku    
2.3     1.25     1.9     1.6     0.6     0.8     0.6     0.6    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     See datasheet (SON)     See datasheet (SON)     See datasheet (SON)    
SAR     SAR     SAR     SAR     SAR     SAR     SAR     SAR    
Pseudo-Differential
Single-Ended    
Differential     Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
   
   
   
   
   
   
   
   
Ext     Ext     Ext     Ext     Ext     Ext     Ext     Ext    
   
   
   
   
   
   
   
   
5.25