5 Device Comparison

Table 5-1. Device Comparison

DEVICE NAME

GAIN

INA241A1, INA241B1

10 V/V

INA241A2, INA241B2

20 V/V

INA241A3, INA241B3

50 V/V

INA241A4, INA241B4

100 V/V

INA241A5, INA241B5

200 V/V

6 Pin Configuration and Functions

1

IN±

8

IN+

2

GND

7

REF1

3

REF2

6

Vs

4

NC

5

OUT

Not to scale

Figure 6-1. INA241x: DDF Package 8-Pin SOT-23

Top View

1

IN±

8

IN+

2

GND

7

REF1

3

REF2

6

Vs

4

NC

5

OUT

Not to scale

1. This package is preview only.

Figure 6-2. INA241x: DGK Package 8-Pin VSSOP

Top View

Table 6-1. Pin Functions

PIN

TYPE

DESCRIPTION

NAME

NO.

GND

2

Ground

Ground

IN+

8

Input

Current-sense amplifier positive input. For high-side applications, connect to bus-voltage

side of sense resistor. For low-side applications, connect to load side of sense resistor.

IN–

1

Input

Current-sense amplifier negative input. For high-side applications, connect to load side of

sense resistor. For low-side applications, connect to ground side of sense resistor.

NC

4

Ground

Reserved. Connect to ground.

OUT

5

Output

Output voltage

REF1

7

Input

Reference 1 voltage. Connect to voltage potential from 0 V to VS; see Adjusting the Output

With the Reference Pins for connection options.

REF2

3

Input

Reference 2 voltage. Connect to voltage potential from 0 V to VS; see Adjusting the Output

With the Reference Pins for connection options.

VS

6

Power

Power supply, 2.7 V to 20 V

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INA241A, INA241B

SBOSA30A – MARCH 2022 – REVISED AUGUST 2022

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Product Folder Links: INA241A INA241B