SBOS757 May 2016 TLV2369 , TLV369


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information: TLV369
    5. 6.5Thermal Information: TLV2369
    6. 6.6Electrical Characteristics
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Operating Voltage
      2. 7.3.2Input Common-Mode Voltage Range
      3. 7.3.3Protecting Inputs from Overvoltage
    4. 7.4Device Functional Modes
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curve
    3. 8.3System Examples
      1. 8.3.1Battery Monitoring
      2. 8.3.2Window Comparator
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Documentation Support
      1. 11.1.1Related Documentation
        1. Links
    2. 11.2Community Resources
    3. 11.3Trademarks
    4. 11.4Electrostatic Discharge Caution
    5. 11.5Glossary
  12. 12Mechanical, Packaging, and Orderable Information

7 Detailed Description

7.1 Overview

The TLVx369 family of operational amplifiers minimizes power consumption and operates on supply voltages as low as 1.8 V. The zero-crossover distortion circuitry enables high linearity over the full input common-mode range, achieving true rail-to-rail input from a 1.8-V to 5.5-V single supply.

7.2 Functional Block Diagram

TLV369 TLV2369 fbd_sbos757.gif

7.3 Feature Description

7.3.1 Operating Voltage

The TLV369 series os op amps are fully specified and tested from 1.8 V to 5.5 V (±0.9 V to ±2.75 V). Parameters that vary significantly with supply voltage are described in the Typical Characteristics section.

7.3.2 Input Common-Mode Voltage Range

The TLV369 family is designed to eliminate the input offset transition region typically present in most rail-to-rail, complementary-stage operational amplifiers, allowing the TLV369 family of amplifiers to provide superior common-mode performance over the entire input range.

The input common-mode voltage range of the TLV369 family typically extends to each supply rail. CMRR is specified from the negative rail to the positive rail; see Figure 1, Normalized Offset Voltage vs Common-Mode Voltage.

7.3.3 Protecting Inputs from Overvoltage

Input currents are typically 10 pA. However, large inputs (greater than 500 mV beyond the supply rails) can cause excessive current to flow in or out of the input pins. Therefore, in addition to keeping the input voltage between the supply rails, the input current must also be limited to less than 10 mA. This limiting is easily accomplished with an input resistor, as shown in Figure 14.

TLV369 TLV2369 ai_in_cur_protect_bos757.gif Figure 14. Input Current Protection for Voltages That Exceed the Supply Voltage

7.4 Device Functional Modes

The TLV369 family has a single functional mode. These devices are powered on as long as the power-supply voltage is between 1.8 V (±0.9 V) and 5.5 V (±2.75 V).