SBOS559B May   2011  – October 2015 AMC80

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
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Block Level Description
      2. 7.3.2 Temperature Measurement
        1. 7.3.2.1 Default Interrupt Mode
        2. 7.3.2.2 One-Time Interrupt Mode
        3. 7.3.2.3 Comparator Mode
      3. 7.3.3 Interrupt Structure
    4. 7.4 Programming
      1. 7.4.1 Interface and Control
    5. 7.5 Register Map
      1. 7.5.1  Configuration Register
      2. 7.5.2  Interrupt Status Registers
      3. 7.5.3  Interrupt Mask Registers
      4. 7.5.4  Fan Divisor/RST_OUT/OS Register
      5. 7.5.5  OS Configuration/Temperature Resolution Register
      6. 7.5.6  Conversion Rate Register
      7. 7.5.7  Voltage/Temperature Channel Disable Register
      8. 7.5.8  Input Mode Register
      9. 7.5.9  ADC Control Register
      10. 7.5.10 Conversion Rate Count Register
      11. 7.5.11 Value Ram Register
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Device Power-On
      2. 8.1.2 Analog Inputs
      3. 8.1.3 Fan Inputs
  9. 9 Device and Documentation Support
    1. 9.1 Community Resources
    2. 9.2 Trademarks
    3. 9.3 Electrostatic Discharge Caution
    4. 9.4 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 10-Bit ADC With Seven Analog Inputs
  • Fan-Speed Monitoring Inputs
  • Input Range/Resolution:
    • Default: 2.56 V/2.5 mV
    • Programmable: VDD/6 mV
  • Chassis Intrusion Detection Input
  • Interrupt Alarms:
    • Upper Over-Limit
    • Lower Under-Limit
  • Interrupt Status Register Input for External Temperature Sensors
  • Shutdown Mode
  • Programmable RST_OUT/OS
  • Pin Compatible with LM96080 and LM80
  • Package: 24-Pin TSSOP

2 Applications

  • Communications Equipment
  • Servers
  • Industrial and Medical Equipment
  • Storage Area Networks
  • Set-Top Boxes
  • Test and Measurement Equipment

3 Description

The AMC80 is a system hardware monitoring and control circuit that includes a seven-channel, 10-bit analog-to-digital converter (ADC), two programmable fan-speed monitors, and a two-wire interface. The AMC80 also includes programmable upper over-limit and lower under-limit alarms that activate when the programmed limits are exceeded.

The AMC80 can interface with both linear and digital temperature sensors. The 2.5-mV least significant bit (LSB) and 2.56-V input range can accept inputs from a linear sensor such as the TMP20. The BTI pin is used as an input from a digital sensor such as the TMP75. The AMC80 operates from a 3-V to 5.5-V supply voltage, has low supply current, and can be configured using a two-wire interface, thus making it ideal for a wide range of applications.

The AMC80 is available in a 24-lead TSSOP package and is fully specified over the –40°C to +125°C temperature range.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
AMC80 TSSOP (24) 7.80 mm × 4.40 mm
  1. For all available packages, see the package option addendum at the end of the data sheet.

Simplified Schematic

AMC80 fbd_bos559.gif