SNOS993P November   2001  – April 2017 LMV931-N , LMV932-N , LMV934-N

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 (Commercial)
    3. 6.3  Recommended Operating Ratings
    4. 6.4  Thermal Information
    5. 6.5  DC Electrical Characteristics 1.8 V
    6. 6.6  AC Electrical Characteristics 1.8 V
    7. 6.7  DC Electrical Characteristics 2.7 V
    8. 6.8  AC Electrical Characteristics 2.7 V
    9. 6.9  Electrical Characteristics 5 V DC
    10. 6.10 AC Electrical Characteristics 5 V
    11. 6.11 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Input and Output Stage
      2. 7.4.2 Input Bias Current Consideration
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 High-Side Current-Sensing Application
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Custom Design With WEBENCH® Tools
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Half-Wave Rectifier Applications
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
      3. 8.2.3 Instrumentation Amplifier With Rail-to-Rail Input and Output Application
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curve
    3. 8.3 Dos and Don'ts
  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 Device Support
      1. 11.1.1 Custom Design With WEBENCH® Tools
      2. 11.1.2 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Typical 1.8-V Supply Values; Unless Otherwise Noted
  • Specified at 1.8 V, 2.7 V and 5 V
  • Output Swing
    • With 600-Ω Load 80 mV from Rail
    • With 2-kΩ Load 30 mV from Rail
  • VCM 200 mV Beyond Rails
  • Supply Current (per Channel) 100 μA
  • Gain Bandwidth Product 1.4 MHz
  • Maximum VOS 4 mV
  • Ultra Tiny Packages
  • Temperature Range −40°C to +125°C
  • Create a Custom Design Using the LMV93x-N With the WEBENCH® Power Designer

2 Applications

  • Phones
  • Tablets
  • Wearables
  • Health Monitoring
  • Portable and Battery-Powered Electronic Equipment
  • Battery Monitoring

High-Side Current Sense Amplifier

LMV931-N LMV932-N LMV934-N 200326h0.png

3 Description

The LMV93x-N family (LMV931-N single, LMV932-N dual and LMV934-N quad) are low-voltage, low-power operational amplifiers. The LMV93x-N family operates from 1.8-V to 5.5-V supply voltages and have rail-to-rail input and output. The input common-mode voltage extends 200 mV beyond the supplies which enables user enhanced functionality beyond the supply voltage range. The output can swing rail-to-rail unloaded and within 105 mV from the rail with 600-Ω load at 1.8-V supply. The LMV93x-N devices are optimized to work at 1.8 V, which make them ideal for portable two-cell, battery-powered systems and single-cell Li-Ion systems.

LMV93x-N devices exhibit an excellent speed-power ratio, achieving 1.4-MHz gain bandwidth product at 1.8-V supply voltage with very low supply current. The LMV93x-N devices can drive a 600-Ω load and up to 1000-pF capacitive load with minimal ringing. These devices also have a high DC gain of 101 dB, making them suitable for low-frequency applications.

The single LMV93x-N is offered in space-saving 5-pin SC70 and SOT-23 packages. The dual LMV932-N are in 8-pin VSSOP and SOIC packages and the quad LMV934-N are in 14-pin TSSOP and SOIC packages. These small packages are ideal solutions for area constrained PC boards and portable electronics such as mobile phones and tablets.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMV931-N SOT-23 (5) 2.90 mm × 1.60 mm
SC-70 (5) 2.00 mm × 1.25 mm
LMV932-N VSSOP (8) 3.00 mm × 3.00 mm
SOIC (8) 4.90 mm × 3.91 mm
LMV934-N TSSOP (8) 5.00 mm × 4.40 mm
SOIC (14) 8.60 mm × 3.90 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.