INA821 datasheet(3/32 Pages) TI1

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4 Device Comparison Table

DEVICE

DESCRIPTION

GAIN EQUATION

GAIN PINS

INA630

Precision, 126dB CMRR, Indirect Current Feedback

Instrumentation Amplifier

G = 1 + R2 / R1

5, 6

INA823

Precision, Low-Power, Wide-Supply (2.7V to 36V) Instrumentation

Amplifier

G = 1 + 100kΩ / RG

1, 8

INA826

Precision, 200µA Supply Current, Wide-Supply (2.7V to 36V)

Instrumentation Amplifier with Rail-to-Rail Output

G = 1 + 49.4kΩ / RG

2, 3

INA821

35µV Offset, 0.4µV/°C VOS Drift, 7nV/√ Hz Noise, High-Bandwidth,

Precision Instrumentation Amplifier

G = 1 + 49.4kΩ / RG

2, 3

INA819

35µV Offset, 0.4µV/°C VOS Drift, 8nV/√ Hz Noise, Low-Power,

Precision Instrumentation Amplifier

G = 1 + 50kΩ / RG

2, 3

INA818

35µV Offset, 0.4µV/°C VOS Drift, 8nV/√ Hz Noise, Low-Power,

Precision Instrumentation Amplifier

G = 1 + 50kΩ / RG

1, 8

INA828

50µV Offset, 0.5µV/°C VOS Drift, 7nV/√ Hz Noise, Low-Power,

Precision Instrumentation Amplifier

G = 1 + 50kΩ / RG

1, 8

INA333

25µV VOS, 0.1µV/°C VOS Drift, 1.8V to 5V, RRO, 50µA IQ,

Chopper-Stabilized INA

G = 1 + 100kΩ / RG

1, 8

5 Pin Configuration and Functions

VS+

INN

OUT

INP

VS−

REF

Not to scale

Figure 5-1. DDF Package, 8-Pin SOT-23 (Top View)

Pin Functions

TYPE

DESCRIPTION

NAME

NO.

–

Not connected.

INN

Input

Negative (inverting) input

INP

Input

Positive (noninverting) input

VS−

Power

Negative supply

REF

Input

Reference input.

Input

Feedback input. Connect gain-setting resistor pair. Connect R1 between pin 5 and pin 6.

Connect R2 between pin 6 and pin 7.

OUT

Output

VS+

Power

Positive supply

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INA630

SBOSAI8 – MARCH 2025

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