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INA281B2IDBVT Datasheet(PDF) 4 Page - Texas Instruments

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Part # INA281B2IDBVT
Description  INA281, ??-V to 110-V, 1.3-MHz Current-Sense Amplifier
PDF  28 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

INA281B2IDBVT Datasheet(HTML) 4 Page - Texas Instruments

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4
INA281
SBOSA29 – JUNE 2020
www.ti.com
Product Folder Links: INA281
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
6.3 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
(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)
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)
Common-mode voltage at both VIN+ and VIN- must not exceed the specified common-mode input range.
6.5 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



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