5.5 Electrical Characteristics (continued)

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

GERR

Gain error

GND + 50 mV ≤ VOUT ≤ VS – 200 mV

±0.07

±0.5

%

TA = –40 °C to +125 °C

±2

±20 ppm/°C

NLERR

Nonlinearity error

0.01

%

Maximum capacitive load

No sustained oscillations, no isolation

resistor

500

pF

VOLTAGE OUTPUT

Swing to Vs (Power supply rail)

RLOAD = 10 kΩ, TA = –40 °C to +125 °C

VS – 0.07 VS – 0.15

V

Swing to ground

RLOAD = 10 kΩ, VSENSE = 0 V,

TA

= –40 °C to +125 °C

0.005

0.02

V

FREQUENCY RESPONSE

BW

Bandwidth

INA281x1, CLOAD = 5 pF,

VSENSE = 200 mV

1300

kHz

INA281x2, CLOAD = 5 pF,

VSENSE = 80 mV

1300

INA281x3, CLOAD = 5 pF,

VSENSE = 40 mV

1000

INA281x4, CLOAD = 5 pF,

VSENSE = 20 mV

900

INA281x5, CLOAD = 5 pF,

VSENSE = 8 mV

900

SR

Slew rate

Rising edge

2.5

V/µs

Settling time

VOUT = 4 V ± 0.1 V step, Output settles to

0.5%

10

µs

VOUT = 4 V ± 0.1 V step, Output settles to

1%

5

VOUT = 4 V ± 0.1 V step, Output settles to

5%

1

NOISE

Ven

Voltage noise density

50

nV/√Hz

POWER SUPPLY

Vs

Supply voltage

TA = –40 °C to +125 °C

2.7

20

V

IQ

Quiescent current

1.5

2

mA

TA = –40 °C to +125 °C

2.25

mA

(1)

Common-mode voltage at both VIN+ and VIN- must not exceed the specified common-mode input range.

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INA281

SBOSA29A – JUNE 2020 – REVISED NOVEMBER 2023

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