5

INA138, INA168

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SBOS122E – DECEMBER 1999 – REVISED DECEMBER 2017

Product Folder Links: INA138 INA168

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Copyright © 1999–2017, Texas Instruments Incorporated

(1)

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

report.

6.4 Thermal Information

THERMAL METRIC(1)

INA1x8

UNIT

DBV

5 PINS

RθJA

Junction-to-ambient thermal resistance

168.3

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

73.8

°C/W

RθJB

Junction-to-board thermal resistance

28.1

°C/W

ψJT

Junction-to-top characterization parameter

2.5

°C/W

ψJB

Junction-to-board characterization parameter

27.6

°C/W

(1)

Defined as the amount of input voltage, VSENSE, to drive the output to zero.

6.5 Electrical Characteristics

all other characteristics at TA = +25°C, VS = 5 V, VIN+ = 12 V, and ROUT = 125 kΩ (unless otherwise noted)

PARAMETER

TEST CONDITIONS

INA1x8

UNIT

MIN

TYP

MAX

INPUT

Common-mode rejection

VSENSE = 50 mV

INA138, VIN+ = 2.7 V to 36 V

100

120

dB

INA168, VIN+ = 2.7 V to 60 V

100

120

Offset voltage(1)

TA = 25°C

±0.2

±1

mV

TA = –40°C to +125°C

±2

Offset voltage drift(1)

TA = –40°C to +125°C

1

µV/°C

Offset voltage vs power supply, V+

VSENSE = 50 mV

INA138, V+ = 2.7 V to 36 V

0.1

10

µV/V

INA168, V+ = 2.7 V to 60 V

0.1

10

Input bias current

TA = 25°C

2

µA

TA = –40°C to +125°C, INA138

10

OUTPUT

Transconductance

VSENSE = 10 mV to 150 mV, TA = 25°C

198

200

202

µA/V

VSENSE = 100 mV, TA = –40°C to +125°C

196

204

µA/V

Transconductance drift

TA = –40°C to +125°C

10

nA/°C

Nonlinearity error

VSENSE = 10 mV to 150 mV

±0.01%

±0.1%

Total output error

VSENSE = 100 mV

TA = 25°C

±0.5%

±2%

TA = –40°C to +125°C

±2.5%

Output impedance

1 || 5

G

Ω || pF

Voltage output swing

To power supply voltage, V+

(V+) – 0.8

(V+) – 1.0

V

To common-mode voltage, VCM

VCM – 0.5

VCM – 0.8

V

FREQUENCY RESPONSE

Bandwidth

ROUT = 5 kΩ

800

kHz

ROUT = 125 kΩ

32

kHz

Settling time

To 0.1%

5-V step, ROUT = 5 kΩ

1.8

µs

5-V step, ROUT = 125 kΩ

30

µs

NOISE

Output-current noise density

9

pA/

√Hz

Total output-current noise

BW = 100 kHz

3

nA RMS

POWER SUPPLY

Quiescent current

VSENSE = 0 V,

IO = 0 mA

TA = 25°C

25

45

µA

TA = –40°C to +125°C

60

µA