OPA607 datasheet(25/52 Pages) TI2

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8 Application and Implementation

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, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

8.1.1 Amplifier Gain Configurations

The OPA810 is a classic voltage-feedback amplifier with each channel having two high-impedance inputs and

a low-impedance output. Standard application circuits (as shown in Figure 8-1 and Figure 8-2) include the

noninverting and inverting gain configurations. The DC operating point for each configuration is level-shifted by

the reference voltage VREF that is typically set to midsupply in single-supply operation. VREF is often connected

to ground in split-supply applications.

VIN

VREF

VSIG

VREF

(1+RF/RG)VSIG

VS+

VS±

Figure 8-1. Noninverting Amplifier

VIN

VREF

VSIG

VREF

±(RF/RG)VSIG

VS+

VS±

Figure 8-2. Inverting Amplifier

Equation 1 shows the closed-loop gain of an amplifier in a noninverting configuration.

REF

(1)

Equation 2 shows the closed-loop gain of an amplifier in an inverting configuration.

REF

(2)

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OPA810

SBOS799E – AUGUST 2019 – REVISED AUGUST 2024

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OPA607 Datenblatt(PDF) 25 Page - Texas Instruments