The OPA3S2859-EP is a wideband,
low-noise programmable gain amplifier with CMOS inputs for wideband
transimpedance and voltage amplifier applications. When the device
is configured as a transimpedence amplifier (TIA), the 0.9-GHz gain
bandwidth product (GBWP) enables high closed-loop bandwidths in
low-capacitance photodiode (PD) applications.
The three internal
switched feedback paths along with an optional parallel non-switched
feedback path allows for up to four selectable gain configurations.
The internal switches minimize parasitic contributions to increase
performance compared to systems that use discrete external switches.
Each switch is optimized for feedback resistor values ranging from
< 1 kΩ to > 100 kΩ for wide dynamic range applications. The
selected switch path is controlled for both channels using a 2-wire
parallel interface. For each channel selected, the gain path can
also be held constant by exerting the latch pin, which subsequently
disables switch control for the selected channel and prevents the
channel from changing gain.
.
.
.
The OPA3S2859-EP is a wideband,
low-noise programmable gain amplifier with CMOS inputs for wideband
transimpedance and voltage amplifier applications. When the device
is configured as a transimpedence amplifier (TIA), the 0.9-GHz gain
bandwidth product (GBWP) enables high closed-loop bandwidths in
low-capacitance photodiode (PD) applications.
The three internal
switched feedback paths along with an optional parallel non-switched
feedback path allows for up to four selectable gain configurations.
The internal switches minimize parasitic contributions to increase
performance compared to systems that use discrete external switches.
Each switch is optimized for feedback resistor values ranging from
< 1 kΩ to > 100 kΩ for wide dynamic range applications. The
selected switch path is controlled for both channels using a 2-wire
parallel interface. For each channel selected, the gain path can
also be held constant by exerting the latch pin, which subsequently
disables switch control for the selected channel and prevents the
channel from changing gain.
.
.
.