LMH32404 - Texas Instruments

LMH32404 Multiplexed Transimpedance Amplifier

The LMH32404 is a quad-channel, single-ended-input to differential-output transimpedance amplifier (TIA) for light detection and ranging (LIDAR) applications and laser distance measurement systems. The LMH32404 has an integrated 100-mA clamp on each channel that protects the amplifier and allows the device to recover rapidly from an overloaded input condit.

Features

• Gain: 20 kΩ
• Performance, CPD = 1 pF:
  – Bandwidth: 350 MHz
  – Input-referred noise: 56 nARMS
  – Rise, fall time: 1.25 ns
• Quiescent current: 28 mA/channel
• Standby mode: 10 mA/channel
• Low power mode: 2.5 mA (4 channels)
• Channel switching time: 10 ns
• Integrated ambient light cancellation
• Integrated 100-mA protection clamp
• 4 Input channels and 4 differential output channels
• Integrated multiplexer enables flexible configurability between optical sensor and ADC/TDC
• Multiple LMH32404s can be combined in parallel to create a wider field-of-view (FoV)
• Package: 28-pin VQFN
  – Bare d.