·       Wide Common-mode Voltage Range, V_CM:

–24V to +55V

·       Low Input Bias Currents, I_B: 500pA (Typ.)

·       Fixed Gain: 50V/V

·       High-Accuracy:

l   Offset Voltage, V_OS: ±54μV (Max.)

l   Offset Drift: ±0.25μV/°C (Max.)

l   Gain Error: ±0.6% (Max.)

l   Gain Drift: ±10ppm/°C (Max.)

l   Common-mode Rejection Ratio: 134 dB (Min.)

·       Low Supply Voltage, VCC: 1.8V to 5.5V

·       Low Quiescent Current, IQ:62µA (Typ.)

·       Package: SOT363

·       MSL Rating: MSL1

The SQ52134C is a 50V/V fixed gain, low-power, high-precision, high-side or low-side current-sense amplifier with ultra-low input bias current, suitable for bidirectional or unidirectional current measurements. The common mode voltage range of the SQ52134C is from -24V to +55V, independent of the supply voltage. Its common mode voltage down to -24V is suitable for the inductive load scenario, because this loads such as motors or solenoids can cause negative voltages under inductive kickback or transient changes.

The SQ52134C has an ultra-low input bias current (500pA typical). Compared with other current-sense amplifiers, this feature allows larger current-sense resistors to be used to enable current measurements in the micro-ampere range.

The supply voltage range of the SQ52134C is 1.8V to 5.5V and the device draws 62µA quiescent current. It is available in a SOT363 package and is specified over the extended industrial temperature range of -40°C to 125°C.