The OPA891 and OPA2891 ( OPAx891) are ultra-low voltage noise, high-speed voltage feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communications and imaging. The single-amplifier OPA891 and the dual-amplifier OPA2891 offer very good ac performance with 140-MHz bandwidth (G = 2), 105-V/µs slew rate, and 70-ns settling time (0.1%). The OPAx891 are unity-gain stable with 180-MHz bandwidth. These amplifiers have a high drive capability of 200 mA and draw only 7.5-mA supply current per channel. With –100 dBc of total harmonic distortion (THD) at f = 1 MHz and a very low noise of 0.95 nV/√ Hz, the OPAx891 are designed for applications requiring low distortion and low noise such as buffering analog-to-digital converters.
The OPA891 and OPA2891 ( OPAx891) are ultra-low voltage noise, high-speed voltage feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communications and imaging. The single-amplifier OPA891 and the dual-amplifier OPA2891 offer very good ac performance with 140-MHz bandwidth (G = 2), 105-V/µs slew rate, and 70-ns settling time (0.1%). The OPAx891 are unity-gain stable with 180-MHz bandwidth. These amplifiers have a high drive capability of 200 mA and draw only 7.5-mA supply current per channel. With –100 dBc of total harmonic distortion (THD) at f = 1 MHz and a very low noise of 0.95 nV/√ Hz, the OPAx891 are designed for applications requiring low distortion and low noise such as buffering analog-to-digital converters.