INA138NA

Instrumentation, Op Amps, Buffer AmpsSOT-23

CURRENT SHUNT MONITOR 2.7V TO 36V 5-SOT-23

INA138NA is a high-side current shunt monitor with a supply voltage range of 2.7V to 36V, in an SOT-23 package, featuring low quiescent current and wide common-mode range.Checked against the datasheet

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Technical parameters

Key specs

Supply voltage2.7 ~ 36 V

Gain bandwidth product800 kHzTyp · Typ: 800 kHz (at ROUT=5 kΩ)，Typ: 32 kHz (at ROUT=125 kΩ)

Input offset voltage2 mVMax · Typ: ±1 mV (at TA=25°C)，Max: ±2 mV (at TA=-40°C to +125°C)

Quiescent current25 µATyp · Max: 45 μA (at TA=25°C，VSENSE=0 V，IO=0 mA)，Max: 60 μA (at TA=-40°C to +125°C)

Channels1

Datasheet-verified parameters

22 items

Parameter	Value and test conditions	Source
Supply voltage	Min: 2.7 V, Nom: 5 V, Max: 36 V
Quiescent current	Typ: 25 µA, Max: 45 µA (at TA=25°C, VSENSE=0 V, IO=0 mA); Max: 60 µA (at TA=-40°C to +125°C)
Offset voltage	Min: ±0.2 mV, Typ: ±1 mV (at TA=25°C); Max: ±2 mV (at TA=-40°C to +125°C)
Bandwidth	Typ: 800 kHz (at ROUT=5 kΩ); Typ: 32 kHz (at ROUT=125 kΩ)
Package	SOT-23 (5)
Operating temperature	Min: -40 °C, Nom: 25 °C, Max: 125 °C
Channels	1
Common-mode rejection	Min: 100 dB, Typ: 120 dB (at VSENSE=50 mV, VIN+=2.7 V to 36 V)
Input bias current	Typ: 2 µA (at TA=25°C); Max: 10 µA (at TA=-40°C to +125°C)
Transconductance	Min: 198 µA/V, Typ: 200 µA/V, Max: 202 µA/V (at VSENSE=10 mV to 150 mV, TA=25°C)
Nonlinearity error	Typ: ±0.01%, Max: ±0.1% (at VSENSE=10 mV to 150 mV)
Output impedance	1 GΩ \|\| 5 pF
Voltage output swing	To V+: Min (V+)-0.8 V, Max (V+)-1.0 V; To VCM: Min VCM-0.5 V, Max VCM-0.8 V
Settling time	Typ: 1.8 µs (5-V step, ROUT=5 kΩ); Typ: 30 µs (5-V step, ROUT=125 kΩ)
Output-current noise density	Typ: 9 pA/√Hz
Absolute Maximum Ratings - Supply Voltage	Min: -0.3 V, Max: 60 V
Absolute Maximum Ratings - Input Common Mode Voltage	Min: -0.3 V, Max: 60 V
Absolute Maximum Ratings - Sense Voltage	Min: -40 V, Max: 2 V
Absolute Maximum Ratings - Operating Temperature	Min: -55 °C, Max: 150 °C
ESD - Human-body model	±1000 V
ESD - Charged-device model	±500 V
Junction-to-ambient thermal resistance	168.3 °C/W

All parameters (7)ExpandCollapse

Power
Common-mode voltage	2.7 V (Min) to 36 V (Max)
Quiescent current	25 µA (Typ)
Supply voltage	2.7 V (Min) to 36 V (Max)
AC and DC characteristics
Offset voltage	±1 mV (Typ)
Environment and package
Operating temperature	-40 °C (Min) to 125 °C (Max)
Package	SOT-23 (5)
Other
Transconductance	200 µA/V (Typ)

Pinout and package

PackageSOT-23 (5)

Pin	Name	Function
1	OUT	(Output current)
2	GND	(Ground)
3	VIN+	(Positive input voltage)
4	VIN-	(Negative input voltage)
5	V+	(Power supply voltage)

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