SNVS053F June   2000  – September 2016 LM4140

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 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 ON/OFF Operation
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Capacitors
      2. 8.1.2 Output Capacitors
      3. 8.1.3 Tantalum Capacitors
      4. 8.1.4 Aluminum Electrolytic Capacitors
      5. 8.1.5 Multilayer Ceramic Capacitors
      6. 8.1.6 Reverse Current Path
      7. 8.1.7 Output Accuracy
    2. 8.2 Typical Applications
      1. 8.2.1 Precision DAC Reference
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Boosted Output Current
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
      3. 8.2.3 Boosted Output Current With Current Limiter
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
      4. 8.2.4 Complimentary Outputs
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Detailed Design Procedure
      5. 8.2.5 Voltage Reference With Force and Sense Output
        1. 8.2.5.1 Design Requirements
        2. 8.2.5.2 Detailed Design Procedure
      6. 8.2.6 Precision Programmable Current Source
        1. 8.2.6.1 Design Requirements
        2. 8.2.6.2 Detailed Design Procedure
      7. 8.2.7 Strain Gauge Conditioner for 350-Ω Bridge
        1. 8.2.7.1 Design Requirements
        2. 8.2.7.2 Detailed Design Procedure
      8. 8.2.8 Bipolar Voltage References for Low Power ADC
        1. 8.2.8.1 Design Requirements
        2. 8.2.8.2 Detailed Design Procedure
      9. 8.2.9 Self-Biased Low Power ADC Reference With Trim Current Sources
        1. 8.2.9.1 Design Requirements
        2. 8.2.9.2 Detailed Design Procedure
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

D Package
8-Pin SOIC
Top View

Pin Functions

PIN TYPE(1) DESCRIPTION
NAME NO.
Enable 3 I Pulled to input for normal operation. Forcing this pin to ground turns off the output.
Ground 1, 4, 7, 8 G Negative supply or ground connection. These pins must be connected to ground.
NC 5 — This pin must be left open.
VIN 2 I Positive supply.
VREF 6 O Reference output. Capable of sourcing up to 8 mA.
(1) G = Ground, I = Input, O = Output