Ultra-high-precision zero-drift low-input-bias-current operational amplifier

The OPA387,

OPA2387, and OPA4387 ( OPAx387) family of precision amplifiers offers

state-of-the-art performance. With zero-drift technology, the OPAx387 offset voltage and offset drift provide

unparalleled long-term stability. With a mere 570 µA of quiescent current, the OPAx387 are able to achieve 5.7 MHz of bandwidth, a

broadband noise of 8.5 nV/√ Hz, and a 1/f noise at

177 nV PP. These specifications are crucial to achieve extremely-high

precision and no degradation of linearity in 16-bit to 24-bit analog to digital

converters (ADCs). The OPAx387 feature flat bias

current over temperature; therefore, little to no calibration is needed in high

input impedance applications over temperature.

All versions are specified over the

industrial temperature range of –40°C to +125°C.