ZHCSS23A april   2023  – august 2023 LMH32401-Q1

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Pin Configuration and Functions
  7. Specifications
    1. 6.1 绝对最大额定值
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics: Gain = 2 kΩ
    6. 6.6 Electrical Characteristics: Gain = 20 kΩ
    7. 6.7 Electrical Characteristics: Both Gains
    8. 6.8 Electrical Characteristics: Logic Threshold and Switching Characteristics
    9. 6.9 Typical Characteristics
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Switched Gain Transimpedance Amplifier
      2. 7.3.2 Clamping and Input Protection
      3. 7.3.3 ESD Protection
      4. 7.3.4 Differential Output Stage
    4. 7.4 Device Functional Modes
      1. 7.4.1 Ambient Light Cancellation (ALC) Mode
      2. 7.4.2 Power-Down Mode (Multiplexer Mode)
  9. 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 Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Mechanical, Packaging, and Orderable Information

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Overview

The LMH32401-Q1 device is a single-channel, differential output, high-speed transimpedance amplifier (TIA) that features several integrated functions geared towards light detection and ranging (LIDAR) and pulsed time-of-flight (ToF) systems. The LMH32401-Q1 is designed to work with photodiode (PD) configurations that can source or sink current. When the photodiode sinks the photocurrent (the anode is biased to a negative voltage and the cathode is tied to the amplifier input), the fast recovery clamp activates when the amplifier input is overloaded. When the photodiode sources the photocurrent (the cathode is biased to a positive voltage and the anode is tied to the amplifier input), a soft clamp activates when the amplifier input is overloaded. When the soft clamp activates, the amplifier requires more time to recover. The recovery time depends on the level of input overload. The LMH32401-Q1 is offered in a space-saving 3-mm × 3-mm, 16-pin VQFN package and is rated over the temperature range of –40°C to +125°C.