CSA240LCTSSOP8
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-6V to 80V, bidirectional, ultra-precision current sense amplifier with enhanced PWM suppression
Product details
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Parameters
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Characteristics
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Package
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Description
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Supply voltage
2.7V-5.5V
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Common-mode input voltage range
-6V-80V
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Bandwidth
550kHz
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Supports PWM suppression functionality
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Gain
20
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Current sensing direction
Bidirectional
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Number of channels
1
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• Accuracy
-Gain: • Gain error: 0.10% (max) • Gain drift: 6ppm/°C (typ) -Offset: • Offset voltage: ±15μV (max) • Offset drift: 600nV/°C (max) • Available gain options
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TSSOP-8 3.0mm × 4.4mm
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The CSA240 device is a current sense amplifier with voltage output. It features enhanced PWM suppression, enabling it to detect the voltage drop across a shunt resistor over a wide common-mode voltage range from -6V to 80V. The -6V common-mode voltage capability of the CSA240 allows the device to operate below ground potential. For example, in applications such as detecting the flyback period of a solenoid, enhanced PWM suppression provides high-level attenuation of large common-mode transients in systems controlled by PWM signals. This feature allows for precise current measurement without significant transients and associated recovery ripple on the output voltage.The device operates from a single supply voltage ranging from 2.7V to 5.5V, with a typical supply current of 1.4mA and a typical bandwidth of 550kHz. The CSA240 offers three fixed gain options: 20V/V, 50V/V, and 100V/V. Its zero-drift architecture enables low full-scale current sensing down to 10mV across the shunt (typical value).
