SNOS719H September   1999  – January 2025 LMC7101Q-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics for VS = 2.7V or ±1.35V
    6. 5.6  Electrical Characteristics for VS = 3V or ±1.5V
    7. 5.7  Electrical Characteristics for VS = 5V or ±2.5V
    8. 5.8  Electrical Characteristics for VS = 15V or ±7.5V
    9. 5.9  Typical Characteristics for VS = 2.7V
    10. 5.10 Typical Characteristics for VS = 3V
    11. 5.11 Typical Characteristics for VS = 5V
    12. 5.12 Typical Characteristics for VS = 15V
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Benefits of the LMC7101 Tiny Amplifier
        1. 6.3.1.1 Size
        2. 6.3.1.2 Height
        3. 6.3.1.3 Signal Integrity
        4. 6.3.1.4 Simplified Board Layout
        5. 6.3.1.5 Low THD
        6. 6.3.1.6 Low Supply Current
        7. 6.3.1.7 Wide Voltage Range
    4. 6.4 Device Functional Modes
      1. 6.4.1 Input Common-Mode Voltage Range
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Rail-to-Rail Output
      2. 7.1.2 Capacitive Load Tolerance
      3. 7.1.3 Compensating for Input Capacitance When Using Large Value Feedback Resistors
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DBV|5
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.2 Typical Application

Figure 7-3 shows a high input impedance noninverting circuit. This circuit gives a closed-loop gain equal to the ratio of the sum of R1 and R2 to R1 and a closed-loop 3dB bandwidth equal to the amplifier unity-gain frequency divided by the closed-loop gain. This design has the benefit of a very high input impedance, which is equal to the differential input impedance multiplied by loop gain (open loop gain / closed loop gain). In dc-coupled applications, input impedance is not as important as input current and the voltage drop across the source resistance. The amplifier output can go into saturation if the input is allowed to float, which can be important if the amplifier must be switched from source to source.

LMC7101Q-Q1 Example Application Figure 7-3 Example Application