Voltage Dividers

18SCT005 1200V Voltage Monitor

The 18SCT005 is a very accurate (+/-0.4%) voltage divider typically used to sense system voltage from +/-150V to +/-1200V. The
nominal gain of 3125ppm is extremely constant with temperature and voltage varying by about 8ppm from -40 to 85C at 800V. For
systems using a voltage pump, the 18SCT005 has a built-in 1kHz low-pass filter eliminates noise from the effect of voltage pumping
frequencies thus allowing accurate voltage measurements for portable systems using charge pumps. The very small footprint of the
TSSOP8 (4.4mm) makes this IC ideal for compact application where saving space is important but its linearity and constant
performance across temperature and voltage makes this the ideal choice for HV electronics in general.

18SCT001 1500V Voltage Monitor with Low-Pass Filter

The 18SCT001 is a voltage divider typically used to sense system voltage from 0V up to 1500V. For example, it can be used to monitor voltage generated from an embedded charge-pump. The chip has a built-in low-pass filter allowing the chip to filter voltage changes typical of voltage pumping frequencies while allowing accurate voltage measurements when the pump is turned-off. The voltage divider ratio is mask programmable in a wide range from 1.0E-5 to 0.2000.


• Automotive (H)EV Power Train and Inverters
• Medical Shock Therapy (Defibrillators)
• Industrial High Voltage Sensing


• Voltage Sensing up to 1500 V
• Nominal Ratio = 0.000735
• High Accuracy: +-5% @ 25C
• Great Linearity over voltage: 0.35% (2.5ppm/V)
• Low Power Sensing: 5uA @ 400V
• Low Pass EMI Filtering





TSSOP Wide-body (4.4mm)





Die (2.4x1.2mm)