SBAS108E May   2000  – December 2016 ADS8320

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics: VCC = 5 V
    6. 6.6 Electrical Characteristics: VCC = 2.7 V
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Typical Connection Diagram
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Input
      2. 7.3.2 Reference Input
      3. 7.3.3 Noise
      4. 7.3.4 Averaging
    4. 7.4 Device Functional Modes
      1. 7.4.1 Signal Levels
      2. 7.4.2 Serial Interface
      3. 7.4.3 Data Format
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Universal Sensor IF SAR Booster Pack
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
          1. 8.2.1.3.1 Static Test (DC)
          2. 8.2.1.3.2 Dynamic Test (AC)
      2. 8.2.2 Wireless Motor Monitor (WMM)
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
      1. 10.3.1 Short Cycling
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • 100-kHz Sampling Rate
  • microPower:
    • 1.8 mW at 100 kHz and 2.7 V
    • 0.3 mW at 10 kHz and 2.7 V
  • Power Down: 3 µA (Maximum)
  • 8-Pin VSSOP Package
  • Pin-Compatible to ADS7816 and ADS7822
  • Serial (SPI™/SSI) Interface

2 Applications

  • Battery-Operated Systems
  • Remote Data Acquisition
  • Isolated Data Acquisition
  • Simultaneous Sampling, Multichannel Systems
  • Industrial Controls
  • Robotics
  • Vibration Analysis

3 Description

The ADS8320 device is a 16-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 100-kHz data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode. The average power dissipation is less than 100 mW at 10-kHz data rate.

The ADS8320 also features operation from 2 V to 5.25 V, a synchronous serial (SPI/SSI compatible) interface, and a differential input. The reference voltage can be set to any level within the range of 500 mV to VCC.

Ultra-low power and small size make the ADS8320 ideal for portable and battery-operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multi-channel systems, and isolated data acquisition. The ADS8320 is available in an
8-pin VSSOP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
ADS8320 VSSOP (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Block Diagram

ADS8320 Front_Page_Schem_SBAS108.gif