Diodes Incorporated

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Current Monitors


40V common-mode range

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.


The ZXCT1080Q and ZXCT1081Q are high side current sense monitors with a voltage output and a fixed gain of 10. Using this device eliminates the need to disrupt the ground plane when sensing a load current. 
The wide input voltage range of 60V and 40V, respectively, down to as low as 3V make it suitable for a range of automotive applications with 60V and 40V load dump withstand capabilities. 
The separate supply pin (VCC) allows the device to continue functioning under short circuit conditions. 
The ZXCT1080Q and ZXCT1081Q have an extended ambient operating temperature range of -40°C to 125°C enabling it to be used in a wide range of automotive applications including. 
The ZXCT1080Q and ZXCT1081Q have been qualified to AEC-Q100 Grade 1 and are Automotive Grade supporting PPAPs. 


  • Accurate high-side current sensing
    • ZXCT1080Q : 3V to 60V continuous high side voltage 
    • ZXCT1081Q : 3V to 40V continuous high side voltage 
  • -40°C to +125°C temperature range 
  • Output voltage scaling x10 
  • 4.5V to 12V VCC range 
  • Low quiescent current:
    • 80μA supply pin 
    • 27μA IS+
  • Green Molding in SOT25
    • Totally Lead-Free & Fully RoHS Compliant 
    • Halogen and Antimony Free. “Green” Device 
  • Automotive Grade
    • Qualified to AEC-Q100 Standards for High Reliability 
    • PPAP Capable 


  • Automotive current measurement 
  • Battery management 
  • Over-current measurement

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
AEC Qualified Yes
Type Voltage output
Minimum S+ Common-Mode Sense Voltage (V) 3
Maximum S+ Common-Mode Sense Voltage (V) 40
Minimum VCC/VB Supply Voltage (V) 4.5
Maximum VCC/VB Supply Voltage (V) 12
Sense Voltage VMAX (mV) 150
Maximum Output Voltage (V) VS- -1
Voltage output Gain VOUT/VSENSE (V/V) 10
Current output Gain Iout/VSENSE (mA/V) -
% Accuracy @ VSENSE =100mV Ta (%) 3.5
Quiescent Current (µA) 30
IS- S- Input current (nA) 40
Bandwidth typ (MHz) 0.5
Operating Ambient Temperature Range (°C) -40 to 125
Special Features -

Related Content


Technical Documents


Recommended Soldering Techniques


Diodes Incorporated's current monitors are high-performance, high-side/power rail current measurement ICs. They greatly simplify the measurement of load currents without disturbing the ground plane/reference point.

The current monitor families contain variants with quiescent currents as low as 3µA, and others with operating voltages up to 60V, proving solutions for overcurrent detection in consumer, industrial, and automotive applications. The portfolio includes current output variants which via an external resistor to ground to provide adjustable gain, and voltage output variants with fixed gains.

Automotive-compliant variants are available which are qualified to AEC-Q100 Grade 1 in IATF 16949 facilities supporting PPAP documentation.