at TA = 25°C, VS = 5V, ISENSE = IS+ = 0A, VCM = VIN– = 48V, VFB = VOUT (Adjustable Gain = 1), and VREF = VS / 2 (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

G

System Gain Error (shunt + amplifier)

GND + 50mV ≤ VOUT ≤ VS – 200mV,

TA = 25°C, ISENSE = ±50A, INA790A

±0.32

±0.725

%

GND + 50mV ≤ VOUT ≤ VS – 200mV,

TA = 25°C, ISENSE = ±5A, INA790A

±0.05

±0.35

(1)GND + 50mV ≤ VOUT ≤ VS – 200mV,

TA = 25°C, ISENSE = ±50A, INA790B

±0.3

±1

GND + 50mV ≤ VOUT ≤ VS – 200mV,

TA = 25°C, ISENSE = ±5A, INA790B

±0.1

±0.625

G

System Gain Error Drift (shunt +

amplifier)

TA = –40°C to +125°C, INA790A

±4

±35

ppm/°C

TA = –40°C to +125°C, INA790B

±10

±100

Power Coefficient Gain Non-Linearity

Error

(2)GND + 10mV ≤ VOUT ≤ VS – 200mV

+1.5

ppm/A2

RVRR

Reference voltage rejection ratio

(input - referred)

VREF = 0.5V to 4.5V

±2.5

±12.5

mA/V

Maximum Capacitive Load

No sustained oscillation

0.5

nF

VOLTAGE OUTPUT

Swing to VS Power Supply Rail

RL = 10kΩ to GND, VREF = VS,

Adjustable Gain = 4, TA = –40°C to

+125°C

VS – 0.05

VS – 0.1

V

Swing to Ground

RL = 10kΩ to GND, VREF = GND,

Adjustable Gain = 4, TA = –40°C to

+125°C

VGND + 5 VGND + 10

mV

Swing to Ground

RL = 10kΩ to GND, VREF = GND, TA =

–40°C to +125°C

VGND + 1

VGND + 5

mV

FREQUENCY RESPONSE

BW

Bandwidth (current sense amplifier

only)

–3dB Bandwidth, VFB = VOUT

1

MHz

–3dB Bandwidth, Adjustable Gain = 4

0.5

MHz

Propagation delay(3)

VIN+, VIN- = 48V, Adjustable Gain = 1,

VREF = 150mV, Load Step = 0A to 20A

0.250

µs

Total Settling time (current in to out)

VIN+, VIN- = 48V, Adjustable Gain = 1,

VREF =150mV, Load Step = 0A to 20A,

Output settles to 1%

5

µs

SR

Slew Rate

VFB = VOUT

1.8

V/µs

Adjustable Gain = 4

1.5

V/µs

NOISE

Current Noise Density

150

µA/√Hz

POWER SUPPLY

IQ

Quiescent current

3.5

4.25

mA

TA = –40°C to +125°C

4.5

mA

TEMPERATURE

TAlert

Thermal Alert Threshold

Rpullup = 10kΩ,

160

°C

VOLAlert

Thermal Alert Low-level output

voltage

Rpullup = 10kΩ,

200

mV

(1)

This is inclusive of Power Coefficient Gain Non-linearity Error

(2)

ISENSE = ± 5A to ± 50A, VOUT = VREF ± 1V

(3)

Propagation delay is difference of time between 10% of load step to 10% of final output settling value

INA790A, INA790B

SBOSAA6B – MAY 2024 – REVISED JULY 2025

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