Features: `COMPLETE UNIPOLAR HIGH-SIDE CURRENT MEASUREMENT CIRCUIT `WIDE SUPPLY AND COMMON-MODE RANGE `INA139: 2.7V to 40V `INA169: 2.7V to 60V `INDEPENDENT SUPPLY AND INPUT COMMON-`MODE VOLTAGES `SINGLE RESISTOR GAIN SET`LOW QUIESCENT CURRENT (60 A typ) `SOT23-5 PACKAGEApplication·CURRENT SHUNT M...
INA169: Features: `COMPLETE UNIPOLAR HIGH-SIDE CURRENT MEASUREMENT CIRCUIT `WIDE SUPPLY AND COMMON-MODE RANGE `INA139: 2.7V to 40V `INA169: 2.7V to 60V `INDEPENDENT SUPPLY AND INPUT COMMON-`MODE VOLTAGES `S...
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Supply Voltage, V+
INA139...............................................................................-0.3V to 60V
INA169...............................................................................-0.3V to 75V
Analog Inputs, VIN+, VIN-
INA139
Common Mode.................................................................. -0.3V to 60V
Differential (VIN+) (VIN-)........................................................-40V to 2V
INA169
Common Mode.................................................................. -0.3V to 75V
Differential (VIN+) (VIN-)........................................................-40V to 2V
Analog Output, Out........................................................... -0.3V to 40V
Operating Temperature.................................................-55 to +125
Storage Temperature....................................................-65 to +125
Junction Temperature.................................................................+150
Lead Temperature (soldering, 10s)............................................+300
NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.
The INA139 and INA169 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and tiny SOT23 packag- ing enable use in a variety of applications.
Input common-mode and power-supply voltages are inde- pendent and can range from 2.7V to 40V for the INA139 and 2.7V to 60V for the INA169. Quiescent current is only 60?A, whic permits connecting the power supply to either side of the current measurement shunt with minimal error.
The INA169 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 cir- cuit invites creative applications in measurement and level shifting.
Both the INA139 and INA169 are available in SOT23-5 packages and are specified for the -40 to +85 industrial temperature range.