• Voltage-output, Current-sense Amplifier
• Common-mode Range: +1.8V to +5.5V
• Gain=100V/V
• Low offset Voltage: ±7μV (typical)
• Offset Drift: 0.2 µV/℃ (maximum)
• Gain Error: 0.06% (typical)
• Gain Drift: 1 ppm/℃ (maximum)
• Quiescent Current: 18μA (typical)
• Buffered Voltage Output: No Additional OP-AMP Needed
• Compact Package: CSP0.76×0.76-4

The SY24644 is a high-side voltage output current-sense amplifier that can sense drops across shunts at common-mode voltages from +1.8V to +5.5V with a gain of 100V/V. The small size makes it suitable for applications in cell phones, mobile accessories, notebooks, portable medical, and all battery-operated portable devices where the precision and space of current sensing are critical.

The device operates from a single +1.8V to +5.5V power supply, drawing 18μA (typical) of supply current. The SY24644 operating temperature range is from –40°C to +125°C. 

Supply voltage for the device is shared with the IN+ pin to reduce the pin count.

The SY24644 is available in a 4-bump, ultra-thin CSP package.