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Transimpedance Amplifiers with Selectable Gain and Input Current Clamp

Replaces Discrete Amps for a Smaller Footprint and Better Consistency

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

  • Optimized for CIN = 0.25pF to 5pF
  • Bandwidth = 300MHz (typ)
  • 1.1pA/√Hz Input-Referred Noise
  • Two Pin-Selectable Transimpedance Values (RL = 1kΩ)
    • 150kΩ
    • 750kΩ
  • Internal Clamp for Input Current up to 2A (Transient)
  • Fast Overload Recovery: 25ns at 100mA
  • Offset Input ​Provides Offset Adjust Feature
  • SD Input Shuts Down Internal Circuitry
  • 3.3V Operation
  • 1.75mm x 1.24mm, 8-Bump WLP

Applications/Uses

  • Industrial Safety Systems
  • LIDAR Receivers
  • Optical Distance Measurement

Description

The MAX40213 is a transimpedance amplifier for optical distance measurement receivers in LiDAR applications. Low noise, high gain, low group delay, and fast recovery from overload make this TIA ideal for distance-measurement applications. Important features include 1.1pA/√Hz input-referred noise density, an internal 2A input clamp, pin-selectable 150kΩ and 750kΩ transimpedance (into a 1kΩ load), and wide bandwidth (300MHz, typ). An offset current input allows optional adjustment of input offset current. The MAX40213 has a shutdown (SD) control input that reduces the supply current to 0.01μA. This transimpedance amplifier is available in a 8-bump WLP, and is specified over the -40°C to +85°C operating temperature range.

Simplified Block Diagram

MAX40213: Typical Application Circuit MAX40213: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .