Dual high precision, low noise operational amplifiers

The OPAx227 and OPAx228 series

operational amplifiers combine low noise and wide bandwidth with high precision to

make them an excellent choice for applications requiring both ac and precision dc

performance.

The OPAx227 are unity-gain stable and

features high slew rate (2.3 V/µs) and wide bandwidth (8 MHz). The OPAx228 are

optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew

rate of 10 V/µs and a bandwidth of 33 MHz.

The OPAx227 and OPAx228 series

operational amplifiers are an excellent choice for professional audio equipment. In

addition, low quiescent current and low cost make these op amps an excellent choice

for portable applications requiring high precision.

The OPAx227 and OPAx228 series

operational amplifiers are pin-for-pin replacements for the industry-standard OP27

and OP37 with substantial improvements across the board. The dual and quad versions

are available for space savings and per-channel cost reduction.

The OPAx227 and OPAx228, are available

in DIP-8 and SO-8 packages. The OPA4227 and OPA4228 are available in DIP-14 and

SO-14 packages with standard pin configurations. Operation is specified from –40°C

to +85°C.