Texas Instruments Special Purpose Amplifiers LMH32401IRGTR

The LMH32401IRGTR is a programmable gain transimpedance amplifier designed for light detection and ranging (LIDAR) applications and laser distance measurement systems. It offers two gain settings of 2 kΩ and 20 kΩ, with a bandwidth of 450 MHz at the lower gain and 275 MHz at the higher gain. The input-referred noise is 250 nA RMS for the 2 kΩ gain and 49 nA RMS for the 20 kΩ gain. The amplifier features an integrated ambient light cancellation circuit, a 100-mA protection clamp, and a wide output swing of 1.5 VPP, making it suitable for driving a 100-Oc load. The device operates with a quiescent current of 30 mA and is available in a 16-pin VQFN package or as a bare die. It is rated for a temperature range of -40 to +125°C, which enhances its applicability in various environments. The LMH32401IRGTR is particularly useful in applications such as scanning LIDAR for drones and industrial robots, as well as optical time-of-flight position sensors.