1 Features
1• Precision Integrated Shunt Resistor
– Shunt Resistor: 2 mΩ
– Shunt Inductance: 3 nH
– Shunt Resistor Tolerance: 0.1% (Max)
– ±15 A Continuous from –40°C to +85°C
– 0°C to 125°C Temperature Coefficient:
10 ppm/°C
• High Bandwidth: 350 kHz
• Enhanced PWM rejection
• Excellent CMRR
– > 120-dB DC CMRR
– 90-dB AC CMRR at 50 kHz
• Accuracy:
– Gain:
– Gain Error: 0.4% (Max)
– Gain Drift: 45 ppm/°C (Max)
– Offset:
– Offset Current: ±15 mA (Max)
– Offset Drift: 125 μA/°C (Max)
• Wide Common-Mode Range: –4 V to +80 V
• Available Gains: 100 mV/A, 200 mV/A,
and 400 mV/A
• Quiescent Current: 2.4 mA (Max)

2 Applications
• Solenoid and Valve Controls
• Transmission control
• Motor Controls
• Actuator Controls
• DC/DC Converters
• Remote I/O Link Control

3 Description
The INA253 is a voltage-output, current sense
amplifier with an integrated shunt resistor of 2 mΩ.
The INA253 is designed to monitor bidirectional
currents over a wide common-mode range from
–4 V to +80 V, independent of the supply voltage.
Three fixed gains are available: 100 mV/A, 200 mV/A,
and 400 mV/A. The integration of the precision
resistor with a zero-drift chopped amplifier provides
calibration equivalent measurement accuracy, ultralow
temperature drift performance of 15 ppm/°C, and
an optimized Kelvin layout for the sensing resistor.
The INA253 is designed with enhanced PWM
rejection circuitry to suppress large (dv/dt) signals
that enable real-time continuous current
measurements. The measurements are critical for inline
current measurements in a motor-drive
application, and for solenoid valve control
applications.
This device operates from a single 2.7-V to 5.5-V
power supply, drawing a maximum of 3 mA of supply
current. All gain versions are specified over the
extended operating temperature range (–40°C to
+125°C), and are available in a 20-pin TSSOP
package.