The MAX748311 FastFET™ amplifier is a voltage feedback
amplifier with field-effect transistor (FET) inputs that offers
high performance and ease of use. This amplifier
is developed in the Analog Devices, Inc., proprietary,
complementary bipolar (XFCB) process and allows exceptionally
low noise operation (7.0nV/√Hz and 1fA/√Hz)
as well as very high input impedance.
The MAX74831 works in a variety of applications with a
wide 5V to 24V supply range, single-supply operation,
and 110MHz bandwidth. For added versatility, the amplifier
also contains rail-to-rail outputs.
Despite the low cost, this amplifier provides excellent
overall performance. The amplifier's 0.02% differential
gain, 0.02° phase error, and 0.1dB flatness out to 7MHz
make it ideal for video applications. Additionally, it offers
a high slew rate of 180V/μs, excellent distortion (spurious-
free dynamic range (SFDR) of −100dBc at 1MHz),
extremely high common-mode rejection ratio (CMRR) of
−100dB, and a low input offset voltage of 3mV maximum
under warmed up conditions. The MAX74831 operates
using a typical supply current of only 6.6mA per amplifier
and can deliver up to 30mA of load current.
The MAX74831 is a high performance, high speed, FET
input amplifier available in small 8-lead [MSOP] (RM-8)
package. It operates over the industrial temperature
range of −40°C to +85°C.
APPLICATIONS
- Photodiode preamplifier (preamp)
- Filters
- Analog-to-digital converter (A/D) drivers
- Level shifting
- Buffering
