ADS7822-Q1 Automotive 12-Bit, 200kSPS Micro Power Sampling Analog-To-Digital Converter | TI.com

ADS7822-Q1 (ACTIVE) Automotive 12-Bit, 200kSPS Micro Power Sampling Analog-To-Digital Converter

 

Description

The ADS7822 is a 12-bit sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7-V to 5.25-V supply range. It requires very little power even when operating at the full 200-kHz rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power-down mode—the power dissipation is less than 60 µW at 7.5 kHz.

The ADS7822 also features operation from 2.0 V to 5 V, a synchronous serial interface, and a pseudo-differential input. The reference voltage can be set to any level within the range of 50 mV to VCC.

Ultra low power and small size make the ADS7822 ideal for battery-operated systems. It is also a perfect fit for remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS7822 is available in an MSOP-8 package.

Features

  • Qualified for Automotive Applications
  • 200-kHz Sampling Rate
  • Micropower:
    1.6 mW at 200 kHz
    0.54 mW at 75 kHz
    0.06 mW at 7.5 kHz
  • Power-Down Current: 3 µA Max
  • MSOP-8 Package
  • Pseudo-Differential Input
  • Serial Interface
  • APPLICATIONS
    • Battery-Operated Systems
    • Remote Data Acquisition
    • Isolated Data Acquisition
    • Simultaneous Sampling, Multichannel Systems

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WEBENCH® Designer ADS7822-Q1



Parametrics

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Part number Order 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) SNR (dB) THD (Typ) (dB) Rating
ADS7822-Q1 Order now 12     200     1     Serial     -40 to 85     VSSOP | 8     1.91 | 1ku     0.6     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     SAR     Pseudo-Differential
Single-Ended    
   
Ext    
   
5.25     0     2.7     5.25     2.7     5.25     0.75     71     -82     Automotive    
ADS1286 Samples not available 12     20     1     SPI     -40 to 85     SOIC | 8     3.23 | 1ku     1.25     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     SAR     Differential    
   
Ext    
   
5.25     0     4.5     5.25     4.5     5.25     2     72     -85     Catalog    
ADS7029-Q1 Order now 8     2000     1     SPI     -40 to 125     VSSOP | 8     0.45 | 1ku     0.555     8VSSOP: 6 mm2: 3.1 x 2 (VSSOP | 8)     SAR     Single-Ended    
   
Supply     Small Size     3.6     0     2.3     3.6     1.65     3.6     0.5     49     -70     Automotive    
ADS7039-Q1 Order now 10