BL38199 Current Sense Amplifier, 5µV Offset, Wide Common-Mode Range, SC70-6

The BL38199 is a high-precision single-channel current sense amplifier designed for accurate current monitoring in high-side and low-side sensing applications. With an ultra-low input offset voltage of 5µV (typical) and excellent temperature stability, it delivers precise current measurements across a wide operating range.
Operating from a 2.7V to 30V supply, the BL38199 supports an extended common-mode voltage range from –0.3V to 36V, making it suitable for automotive, industrial, and power management systems. Its low quiescent current of 65µA, combined with a compact SC70-6 package, makes it ideal for space- and power-sensitive designs.

Key Specifications

• Channels: 1

• Input Offset Voltage (Vos): 5µV (Typ)

• Supply Voltage: 2.7V – 30V

• Common-Mode Voltage Range: –0.3V to 36V

• Slew Rate: 0.6V/µs

• Quiescent Current (Iq): 65µA (Typ)

• Input Bias Current (Ib): 28µA (Typ)

• Offset Voltage Drift (Vos TC): 0.1µV/°C (Typ)

• Gain Drift: 3ppm/°C (Typ)

• Package: SC70-6

Applications

• High-side and low-side current sensing

• Power management and DC-DC converters

• Battery monitoring systems

• Automotive and industrial current measurement

Features

• Ultra-low offset voltage for high accuracy

• Wide common-mode voltage range

• Low power consumption

• Excellent temperature stability

• Compact SC70-6 package