INA296A_V04 datasheet(20/43 Pages) TI

Part #	INA296A

Description	INA296x –5 V to 110 V, Bidirectional, 1.1 MHz, 8 V/μs, Ultra-Precise Current Sense Amplifier

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Manufacturer	TI [Texas Instruments]

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+

–

IN+

IN–

REF1

REF2

VS

GND

OUT

VS

REF5025

2.5-V

Reference

Figure 8-6. Mid-External Reference Output

8.4.3.4 Output Set Using Resistor Divider

The INA296x reference pins allow for the mid-point of the output voltage to be adjusted for system circuitry

connections to analog to digital converters (ADCs) or other amplifiers. The reference pins are designed to

be connected directly to supply, ground, or a low-impedance reference voltage. The reference pins can be

connected together and biased using a resistor divider to achieve a custom output voltage. If the amplifier

is used in this configuration, as shown in Figure 8-7, use the output as a differential signal with respect to

the resistor divider voltage. Use of the amplifier output as a single-ended signal in this configuration is not

recommended because the internal impedance shifts can adversely affect device performance specifications. If

single-ended measurement is required, TI recommends to use an external op amp to buffer the resistor divider

voltage (see Figure 8-8).

+

±

IN+

IN±

REF2

REF1

VS

GND

OUT

VS

TO ADC±

TO ADC+

R1

R2

Figure 8-7. Setting the Reference Using a Resistor Divider

INA296A, INA296B

SBOSA04C – MARCH 2022 – REVISED OCTOBER 2023

www.ti.com

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