The INA139 and INA169 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and tiny SOT-23 packaging enable use in a variety of applications. Input common-mode and power-supply voltages are independent and can range from 2.7 V to 40 V for the INA139 and 2.7 V to 60 V for the INA169. Quiescent current is only 60 µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error. The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting. Both the INA139 and INA169 are available in 5-pin SOT-23 packages, and are specified for the –40°C to 85°C temperature range.
Technical Specifications
No. of Amplifiers:
1 Amplifier
Input Bias Current:
10µA
Amplifier Case Style:
SOT-23
No. of Pins:
5Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Bandwidth:
440kHz
Supply Voltage Min:
2.7V
Supply Voltage Max:
40V
Input Offset Voltage:
1mV
CMRR:
115dB
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
CURRENT SENSE AMPLIFIER, 250KHZ, SOT23-5; No. of Amplifiers:1 Amplifier; Input Bias Current:10µA; Amplifier Case Style:SOT-23; No. of Pins:5Pins; Operating Temperature Min:-40°C; Operating Temperature Max:125°C; Bandwidth:440kHz; RoHS Compliant: Yes Newark Electronics
2.7 to 36V, 440kHz Variable gain current sense amplifier Texas Instruments
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