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 condition. The LMH32404 also
features an integrated ambient light cancellation (ALC) circuit on each channel that can be
used instead of AC coupling between the photodiode and the amplifier to save board space and
system cost. The ALC loop should be disabled when DC and low frequency content is
measured.
Each LMH32404 channel has
integrated switches on the output to disconnect the differential output amplifier from the
output pins and put the channel in standby mode. When switching between different channels,
the transistion time is only 10 ns. The LMH32404 can be placed in low-power
mode using the EN pin to conserve power when the amplifier is not being
used.
.
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 condition. The LMH32404 also
features an integrated ambient light cancellation (ALC) circuit on each channel that can be
used instead of AC coupling between the photodiode and the amplifier to save board space and
system cost. The ALC loop should be disabled when DC and low frequency content is
measured.
Each LMH32404 channel has
integrated switches on the output to disconnect the differential output amplifier from the
output pins and put the channel in standby mode. When switching between different channels,
the transistion time is only 10 ns. The LMH32404 can be placed in low-power
mode using the EN pin to conserve power when the amplifier is not being
used.
.