Transimpedance Amplifier with 100mA Input Current Clamp for Automotive LiDAR

High Bandwidth TIA with Low Power Mode for Automotive LiDAR Applications

Please check latest availability status for a specific part variant.


The MAX40660 and MAX40661 are transimpedance amplifiers for optical distance measurement receivers in LiDAR applications. Low noise, high gain, low group delay, and fast recovery from overload make these TIAs ideal for distance-measurement applications. Important features include 2.38pA input-referred noise density (MAX40660), an internal input clamp, pin-selectable 25kΩ and 50kΩ transimpedance, and wide bandwidth (490MHz (typ) for the MAX40660 with 0.5pF input capacitance and 25kΩ transimpedance; 160MHz (typ) for the MAX40661 with 10pF input capacitance). An offset current input allows optional adjustment of input offset current. A low-power/standby control input reduces the supply current by better than 80% to help reduce average power supply current between pulses. The MAX40660 and MAX40661 transimpedance amplifiers feature AEC-Q100 qualification, enable ASIL compliance, and are available in a 3mm x 3mm,10-lead TDFN package with side-wettable flanks, making them excellent choices for automotive LiDAR applications.

In addition to the TDFN package, the MAX40660 and MAX40661 are available as bare die, and are specified over the -40°C to +125°C automotive operating temperature range.

MAX40660, MAX40661: Simplified Block Diagram MAX40660, MAX40661: Simplified Block Diagram Enlarge+

Key Features

  • AEC-Q100
  • Enables ASIL Compliance (FMEDA Available UponRequest)
  • MAX40660
    • Optimized for CIN = 0.25pF to 5pF
    • Bandwidth = 490MHz (Typ)
  • MAX40661
    • Optimized for CIN = 5pF to 12pF
    • Bandwidth (CIN = 10pF) = 160MHz (Typ), 100MHz (Min)
  • Low Noise
  • Two Pin-Selectable Transimpedance Values
    • 25kΩ
    • 50kΩ
  • Internal Clamp For Input Current Up To 2A (Transient)
  • Fast Overload Recovery: 2ns at 100mA
  • Offset Input Provides Offset Adjust Feature
  • LP Input Reduces Power Dissipation Between Pulses
  • 3.3V Operation
  • 10-Pin TDFN (Side-Wettable) or Bare Die


  • Automotive Applications
  • Autonomous Driving Systems
  • Industrial Safety Systems
  • LIDAR Receivers
  • Optical Distance Measurement
Part NumberAmps.AV
ICC per Amp.
Unity Gain BW
minmaxtyptypSee Notes
MAX40660 NEW!1
$3.95 @1k
MAX40661 NEW!200
$3.74 @1k
See All Operational Amplifiers (174)

Part NumberVSUPPLY
Input Noise
MAX40660 NEW!3.341.544420100050
See Data Sheet
MAX40661 NEW!200
See Data Sheet
See All Transimpedance Amplifiers (TIA) (15)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX40660EVKIT: Evaluation Kit for the MAX40660
MAX40661EVKIT: Evaluation Kit for the MAX40661

Technical Documents

designSoln 7098 Seeing is Believing: Give Your LIDAR ADAS System 20:20 Vision

Quality and Environmental Data

Request Reliability Report for: MAX40661 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX40661 Orcad Library
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


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