Current shunt monitors enable maximum drop sensing
The INA28x-Q1 family from Texas Instruments includes the INA282-Q1, INA283-Q1, INA284-Q1, INA285-Q1, and INA286-Q1 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from -14 to +80V, independent of the supply voltage.
The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10mV full-scale.
These current sense amplifiers operate from a single +2.7 to +18V supply, drawing a maximum of 900μA of supply current. These devices are specified over the extended operating temperature range of -40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.
Features:
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C5
- Wide Common-Mode Range: -14-80V
- Offset Voltage: ±20μV
- CMRR: 140dB
- Accuracy:
- ±1.4% Gain Error (Maximum)
- 0.3 μV/°C Offset Drift
- 0.005%/°C Gain Drift (Maximum)
- Available Gains:
- 50V/V: INA282-Q1
- 100V/V: INA286-Q1
- 200V/V: INA283-Q1
- 500V/V: INA284-Q1
- 1,000V/V: INA285-Q1
- Quiescent Current: 900μA (Maximum)
Read the datasheet here.
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