(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

5.3 Recommended Operating Conditions

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

MIN

NOM

MAX

UNIT

VCM

Common-mode input range

–4

48

110

V

VS

Operating supply range

2.7

5

20

V

VSENSE

Differential sense input range

0

VS / G

V

TA

Ambient temperature

–40

125

°C

5.4 Thermal Information

THERMAL METRIC(1)

INA281

UNIT

DBV (SOT-23)

5 PINS

RθJA

Junction-to-ambient thermal resistance

184.7

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

105.6

°C/W

RθJB

Junction-to-board thermal resistance

47.2

°C/W

ΨJT

Junction-to-top characterization parameter

21.5

°C/W

ΨJB

Junction-to-board characterization parameter

46.9

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

N/A

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

5.5 Electrical Characteristics

at TA = 25 °C, VS = 5 V, VSENSE = VIN+ – VIN– = 0.5 V / Gain, VCM = VIN– = 48 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT

VCM

Common-mode input range(1)

TA = –40 °C to +125 °C

–4

110

V

CMRR

Common-mode rejection ratio, input

referred

–4 V ≤ VCM ≤ 110 V, TA = –40 °C to +125

°C

120

140

dB

f = 50 kHz

65

dB

Vos

Offset voltage, input referred

INA281x1

±100

±500

µV

INA281x2

±55

±300

INA281x3

±30

±250

INA281x4

±30

±200

INA281x5

±15

±150

dVos/dT

Offset voltage drift

TA = –40 ℃ to +125 ℃

±0.1

±1

µV/

℃

PSRR

Power supply rejection ratio, input

referred

2.7 V ≤ VS ≤ 20 V,

TA = –40 °C to +125 °C

±1.5

±10

µV/V

IB

Input bias current

IB+, VSENSE = 0 V

10

20

30

uA

IB–, VSENSE = 0 V

10

20

30

uA

OUTPUT

G

Gain

INA281x1

20

V/V

INA281x2

50

V/V

INA281x3

100

V/V

INA281x4

200

V/V

INA281x5

500

V/V

INA281

SBOSA29A – JUNE 2020 – REVISED NOVEMBER 2023

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