The OPA657 device combines a high gain-bandwidth, low-distortion, voltage-feedback
operational amplifier with a low voltage noise JFET-input stage to offer a very high dynamic range
amplifier for high-precision analog-to-digital converter (ADC) driving or wideband transimpedance
applications. Photodiode applications achieve improved noise and bandwidth using this
decompensated, high gain-bandwidth amplifier.
Very low level signals can be significantly amplified in a single OPA657 gain stage with
exceptional bandwidth and accuracy. The very low input bias current and capacitance supports this
performance even for relatively high source impedance. Broadband photodetector applications benefit
from the low voltage noise JFET inputs for the OPA657. The JFET input contributes virtually no
current noise, which makes the device ideal for high-gain photodiode applications.
The OPA657 device combines a high gain-bandwidth, low-distortion, voltage-feedback
operational amplifier with a low voltage noise JFET-input stage to offer a very high dynamic range
amplifier for high-precision analog-to-digital converter (ADC) driving or wideband transimpedance
applications. Photodiode applications achieve improved noise and bandwidth using this
decompensated, high gain-bandwidth amplifier.
Very low level signals can be significantly amplified in a single OPA657 gain stage with
exceptional bandwidth and accuracy. The very low input bias current and capacitance supports this
performance even for relatively high source impedance. Broadband photodetector applications benefit
from the low voltage noise JFET inputs for the OPA657. The JFET input contributes virtually no
current noise, which makes the device ideal for high-gain photodiode applications.