MSA2293
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New Recommended Use
The MSA2293/MSA2294 is a high-precise current sense amplifier. It can measure the voltage drop on shunt resistor with wide common-mode voltage from -4V to 90V. Negative common mode voltage allows the voltage of shunt resistor is less than grounding voltage, thus recirculating current is precisely measured in half-bridge application. The combination of low offset voltage, small gain error and high DC CMRR can realize high-precise current measurement. The MSA2293/MSA2294 is not only suitable for DC current measurement, but also for high-speed application (such as fast overcurrent protection).
The MSA2293/MSA2294 operates from single power supply ranging from 2.7V to 30V and power supply current is 1.3mA. The MSA2293/MSA2294 provides three gain options: 20V/V, 50V/V and 100V/V. These gain options can satisfy wide dynamic range current-sensing application. The MSA2293/MSA2294 operates from -40°C to 125°C and is available in SOT23-5 and MSOP8 packages.
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- ⚫ Wide Common-mode Voltage:
- - Operating Voltage：-4V - 90V
- - Sustainable Voltage：-30V -100V
- ⚫ Perfect Common-mode Rejection Ratio
- (CMRR) - 160dB DC CMRR
- ⚫ Accuracy
- - Gain
- Gain Error：±0.2%（Typ.）
- Gain Drift：±1.8ppm/°C（Typ.）
- - Offset Voltage
- Offset Voltage：±100µV（Typ.）
- Offset Voltage Drift：±0.2µV/°C（Typ.）
- ⚫ Available Gain
- - 20V/V
- - 50V/V
- - 100V/V
- ⚫ High Bandwidth：1.1MHz
- ⚫ Slew Rate：2.5V/µV
- ⚫ Quiescent Current：1.3mA
