High-voltage amplifiers enable accuracy in error-sensitive applications

Texas Instruments has introduced three new amplifiers with a unique combination of high speed and high precision, allowing designers to create more accurate circuits for error-sensitive applications. The OPA2810 is a 27V JFET-input dual operational amplifier (op-amp), 120MHz bandwidth, 500µV max offset voltage; the OPA189, a 36V zero-drift op-amp, 14MHz bandwidth, MUX-friendly; and the THS3491, a 32V current-feedback amplifier, 900MHz small-signal bandwidth, ±420mA output current. The new devices support more precise measurement and faster processing of a wide variety of input signals in test and measurement, medical, and data-acquisition systems. Designers can select the amplifier architecture that meets their system requirements, with input voltages, bandwidths and key features. Producing up to twice the bandwidth and slew rate of competing devices, the new high-voltage amplifiers many system-level benefits. The excellent precision of these high-voltage amplifiers maximises system accuracy while decreasing the need for external calibration and minimising BOM cost. Consuming up to 80% less power than competitive devices, these new amplifiers enable low-power operation in high-speed designs.