Texas Instruments has introduced three new amplifiers with high speed and high precision that allow designers to design more accurate circuits for applications where error is critical.
TI's new high-voltage amplifiers offer twice the bandwidth and slew rate of comparable devices, and the OPA2810 and OPA189 designers can use the THS3491 current-feedback amplifier's small signal high-bandwidth, high slew rate, and ±420 mA output current for low distortion and High output power level. For test and measurement systems such as arbitrary waveform generators, laser diode drivers, and highly compatible load-drive applications, the THS3491 is capable of achieving a 10V peak-to-peak output stage at 200 MHz (100Ω load).
The superior precision of these high-voltage amplifiers improves system accuracy while reducing the need for external calibration and minimizing bill of materials. The OPA2810 op amp features industry-leading maximum offset and minimum voltage noise (5.7 nV/√) Hz), for 27V in the 100 to 200 MHz bandwidth range. OPA189 is a zero-drift op amp with ultra-low noise (up to 5.2 nV/√Hz) and the highest frequency. With a lower maximum temperature drift of 0.02μV/°C, the OPA189 also reduces temperature error without correction, increasing system precision over the extended temperature range.
TI's new amplifiers consume up to 80% less power than comparable devices, enabling low-power operation in high-speed designs. The 120MHz OPA2810 op amp delivers 3.6mA of optimum current consumption in both stages with excellent signal-to-noise ratio and distortion performance. Designed for applications requiring high gain and low distortion in power-sensitive designs, the OPA189 is the lowest power zero-drift op amp with 14MHz bandwidth. The device assists engineers in designing high-resolution noise-sensitive industrial systems that consume only 1.3 mA of quiescent current and are subject to analog input modules, batteries, and LCD test equipment.
For more information about OPA2810 and OPA189, please visit Texas Instruments’ website: www.ti.com
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