5 Pin Configuration and Functions

1

OUT

2

GND

3

IN+

4

IN±

5

Vs

Not to scale

Figure 5-1. INA281A-Q1: DBV Package 5-Pin

SOT-23 Top View

1

OUT

2

GND

3

Vs

4

IN+

5

IN±

Not to scale

Figure 5-2. INA281B-Q1: DBV Package 5-Pin

SOT-23 Top View

Table 5-1. Pin Functions

PIN

TYPE

DESCRIPTION

NAME

INA281A-Q1

INA281B-Q1

GND

2

2

Ground

Ground

IN–

4

5

Input

Shunt resistor negative sense input

IN+

3

4

Input

Shunt resistor positive sense input

OUT

1

1

Output

Output voltage

Vs

5

3

Power

Power supply

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)

MIN

MAX

UNIT

Supply Voltage

–0.3

22

V

Analog Inputs,

–6

6

V

–12

12

Common-mode

–20

120

Output

GND – 0.3

V

Operating temperature

–55

150

°C

Junction temperature

150

°C

Storage temperature

–65

150

°C

(1)

Stresses beyond those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under

Recommended Operating Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device

reliability.

(2)

VIN+ and VIN– are the voltages at the IN+ and IN– pins, respectively.

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INA281-Q1

SBOSA01 – NOVEMBER 2020

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