OPA376 Datasheet, PDF (17/42 Pages) Burr-Brown (TI) – Precision, Low Noise, Low Quiescent Current, Operational Amplifier

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8 Application and Implementation
OPA376, OPA2376, OPA4376
SBOS406G – JUNE 2007 – REVISED DECEMBER 2015
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The OPA376 family of operational amplifiers is built using e-trim, a proprietary technique in which offset voltage
is adjusted during the final steps of manufacturing. This technique compensates for performance shifts that can
occur during the molding process. Through e-trim, the OPA376 family delivers excellent offset voltage (5 μV,
typical). Additionally, the amplifier boasts a fast slew rate, low drift, low noise, and excellent PSRR and A_OL.
These 5.5-MHz CMOS op amps operate on 760-μA (typical) quiescent current.
8.1.1 Basic Amplifier Configurations
The OPA376 family is unity-gain stable. It does not exhibit output phase inversion when the input is overdriven. A
typical single-supply connection is shown in Figure 25. The OPA376 is configured as a basic inverting amplifier
with a gain of –10 V/V. This single-supply connection has an output centered on the common-mode voltage, V_CM.
For the circuit shown, this voltage is 2.5 V, but may be any value within the common-mode input voltage range.
R₂
10kW
+5V
R₁
1kW
V_IN
C₁
100nF
OPA376
V_OUT
V_CM = 2.5V
Figure 25. Basic Single-Supply Connection
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Product Folder Links: OPA376 OPA2376 OPA4376