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INA148-Q1

SBOS472B – MARCH 2009 – REVISED JUNE 2016

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6.3 Recommended Operating Conditions

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

MIN

MAX

UNIT

VS

Supply voltage

Single supply

2.7

36

V

Dual supply

±1.35

±18

TA

Operating free-air temperature

–40

125

°C

(1)

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

report, SPRA953.

6.4 Thermal Information

THERMAL METRIC(1)

INA148-Q1

UNIT

D (SOIC)

8 PINS

RθJA

Junction-to-ambient thermal resistance

100.6

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

44.9

°C/W

RθJB

Junction-to-board thermal resistance

42.2

°C/W

ψJT

Junction-to-top characterization parameter

6.3

°C/W

ψJB

Junction-to-board characterization parameter

41.5

°C/W

(1)

Overall difference amplifier configuration. Referred to input pins (V+IN and V–IN ), gain = 1 V/V.

(2)

Includes effects of amplifier's input bias and offset currents.

(3)

Includes effects of input current noise and thermal noise contribution of resistor network.

6.5 Electrical Characteristics Dual Supply

VS = ±5 V to ±15 V (dual supply), RL = 10 kΩ to ground, VREF = 0 V, TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOS

Input offset voltage(1)(2)

VCM = 0 V

VS = ±15 V

±1

±5

mV

VS = ±5 V

±1

±5

ΔVOS/ΔT

Input offset voltage drift(1)

TA = –40°C to 125°C

±10

μV/°C

PSRR

Power supply ripple rejection(1)

VS = ±1.35 V to ±18 V, VCM = 0 V

±50

±400

μV/V

VCM

Common-mode voltage range

V+IN – V–IN = 0

VS = ±15 V

–200

200

V

VS = ±5 V

–100

80

CMRR

Common-mode rejection ratio

VS = ±15 V, VCM = –200 V to 200 V, RS = 0 Ω

70

86

dB

VS = ±5 V, VCM = –100 V to 80 V, RS = 0 Ω

70

86

Differential input impedance

2

M

Ω

Common-mode input impedance

1

M

Ω

Vn

Voltage noise(1)(3)

f = 0.1 Hz to 10 Hz

17

μVp-p

Voltage noise density(1)(3)

f = 1 kHz

880

nV/

√Hz

Initial gain(1)

1

V/V

Gain error

VO = (V– + 0.5) to (V+ – 1.5)

±0.01%

±0.075%

Gain error over temperature

±3

±10

ppm/°C

Gain nonlinearity

VO = (V– + 0.5) to (V+ – 1.5)

VS = ±15 V

±0.001

±0.002

%FSR

VS = ±5 V

±0.001

Small-signal bandwidth

frequency response

100

kHz

SR

Slew rate

1

V/

μs

ts

Settling time

VS = ±15 V, 10-V step

0.1%

21

μs

0.01%

25

VS = ±5 V, 6-V step

0.1%

21

0.01%

25

Overload recovery

50% input overload

24

μs