Decompensated transimpedance amplifier for wideband transimpedance and voltage amp applications

The Texas Instruments OPA858 is a wideband, low-noise, operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a TIA, the 5.5GHz GBWP allows applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kOhms range. The device is optimised for use in optical Time-of-Flight systems where the OPA858 is used with the TDC7201 time-to-digital converter. The device can be used in high-resolution LIDAR systems with a high-speed ADC and a differential output amplifier like the THS4541 or LMH5401 to drive the ADC.