SBOS837A November   2016  – January 2019 TLV2314-Q1 , TLV314-Q1 , TLV4314-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      EMIRR vs Frequency
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: TLV314-Q1
    2.     Pin Functions: TLV2314-Q1
    3.     Pin Functions: TLV4314-Q1
  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: TLV314-Q1
    5. 6.5 Thermal Information: TLV2314-Q1
    6. 6.6 Thermal Information: TLV4314-Q1
    7. 6.7 Electrical Characteristics
    8. 6.8 Typical Characteristics
    9. 6.9 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 Operating Voltage
      2. 7.3.2 Rail-to-Rail Input
      3. 7.3.3 Rail-to-Rail Output
      4. 7.3.4 Common-Mode Rejection Ratio (CMRR)
      5. 7.3.5 Capacitive Load and Stability
      6. 7.3.6 EMI Susceptibility and Input Filtering
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
  9. 9 Power Supply Recommendations
    1. 9.1 Input and ESD Protection
  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 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.2 Detailed Design Procedure

Calculate the gain required by the inverting amplifier using Equation 1 and Equation 2:

Equation 1. TLV314-Q1 TLV2314-Q1 TLV4314-Q1 app_eq1_sbos754.gif
Equation 2. TLV314-Q1 TLV2314-Q1 TLV4314-Q1 app_eq2_sbos754.gif

When the desired gain is determined, select a value for RI or RF. Selecting a value in the kilohm range is desirable for general-purpose applications because the amplifier circuit uses currents in the milliamp range. This milliamp current range ensures the device does not draw too much current. The trade-off is that very large resistors (hundreds of kilohms) draw the smallest current, but generate the highest noise. Very small resistors (hundreds of ohms) generate low noise but draw high current. This example uses 10 kΩ for RI, and RF uses 36 kΩ. These values are calculated using Equation 3:

Equation 3. TLV314-Q1 TLV2314-Q1 TLV4314-Q1 app_eq3_sbos754.gif