SBAS652A May   2014  – August 2014 ADS7950-Q1 , ADS7951-Q1 , ADS7952-Q1 , ADS7953-Q1 , ADS7954-Q1 , ADS7956-Q1 , ADS7957-Q1 , ADS7958-Q1 , ADS7959-Q1 , ADS7960-Q1 , ADS7961-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configurations and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  Handling Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics: ADS7950-Q1, ADS7951-Q1, ADS7952-Q1, ADS7953-Q1
    6. 7.6  Electrical Characteristics: ADS7954-Q1, ADS7956-Q1, ADS7957-Q1
    7. 7.7  Electrical Characteristics: ADS7958-Q1, ADS7959-Q1, ADS7960-Q1, ADS7961-Q1
    8. 7.8  Timing Requirements
    9. 7.9  Typical Characteristics (All ADS79xx-Q1 Family Devices)
    10. 7.10 Typical Characteristics (12-Bit Devices Only)
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Device Operation
      2. 8.3.2 Device Power-up Sequence
      3. 8.3.3 Analog Input
      4. 8.3.4 Reference
      5. 8.3.5 Power Saving
    4. 8.4 Device Functional Modes
      1. 8.4.1 Channel Sequencing Modes
      2. 8.4.2 Device Programming and Mode Control
        1. 8.4.2.1 Mode Control Register
        2. 8.4.2.2 Program Registers
      3. 8.4.3 Operating In Manual Mode
      4. 8.4.4 Operating In Auto-1 Mode
      5. 8.4.5 Operating In Auto-2 Mode
      6. 8.4.6 Continued Operation In A Selected Mode
    5. 8.5 Digital Output Code
    6. 8.6 Programming: GPIO
      1. 8.6.1 GPIO Registers
      2. 8.6.2 Alarm Thresholds for GPIO Pins
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Unbuffered Multiplexer Output (MXO)
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 OPA192 Buffered Multiplexer Output (MXO)
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
    3. 9.3 Do's and Don'ts
  10. 10Power-Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Qualified for Automotive Applications
  • AEC-Q100 Tested with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Product Family:
    • 8-, 10-, and 12-Bit Resolution
    • 4-, 8-, 12-Channel Devices Share 16-Channel Footprint
  • 1-MHz Sample-Rate Serial Devices
  • Analog Supply Range: 2.7 V to 5.25 V
  • I/O Supply Range: 1.7 V to 5.25 V
  • Two SW-Selectable Unipolar, Input Ranges:
    • (0 V to 2.5 V) or (0 V to 5 V)
  • Auto and Manual Modes for Channel Selection
  • Two Programmable Alarm Levels per Channel
  • Four Individually Configurable GPIOs
  • Typical Power Dissipation: 14.5 mW (V(+VA) = 5 V, V(+VBD) = 3 V) at 1 MSPS
  • Power-Down Current (1 μA)
  • 30-Pin and 38-Pin TSSOP Package

2 Applications

  • Automotive Systems
  • Power Supply Monitoring
  • Battery-Powered Systems
  • High-Speed, Data-Acquisition Systems

3 Description

The ADS79xx-Q1 device family consists of multichannel 8-bit, 10-bit and 12-bit analog-to-digital converters (ADCs). The devices include a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold. Multiple features and great performance makes the ADS79xx-Q1 device useful for wide variety of applications where multiple channels should be monitored.

The ADS79xx-Q1 device works on a wide analog-supply range from 2.7 V to 5.25 V. These devices are suitable for battery-powered and isolated power-supply applications because of very-low power consumption.

The 4- and 8-channel devices are available in 30-pin TSSOP package. The 12- and 16-channel devices are available in 38-pin TSSOP package.

Device Information(1)

DEVICE NAME PACKAGE BODY SIZE
ADS7950-Q1 TSSOP (30) 7.80 mm × 4.40 mm
ADS7951-Q1
ADS7954-Q1
ADS7958-Q1
ADS7959-Q1
ADS7952-Q1 TSSOP (38) 9.70 mm × 4.40 mm
ADS7953-Q1
ADS7956-Q1
ADS7957-Q1
ADS7960-Q1
ADS7961-Q1
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Detailed Block Diagram

fbd_fp_sbas652.gif

4 Revision History

Changes from * Revision (May 2014) to A Revision

  • Added all devices to Device Information table Go
  • Deleted Device Comparison Table footnoteGo
  • Changed entire Application and Implementation section Go