1 Features
• Wide high-side supply range: 3 V to 27 V
• Low-side supply range: 2.7 V to 5.5 V
• Trip threshold error: ±6 mV (max)
• Open-drain and push-pull output
• Propagation delay: 290 ns (typ)
• High CMTI:
– Open drain output: 75 V/ns (min)
– Push-pull output: 100 V/ns (min)
• Safety-related certifications:
– 7000-VPK reinforced isolation per DIN EN IEC
60747-17 (VDE 0884-17)
– 5000-VRMS isolation for 1 minute per UL1577
• Fully specified over the extended industrial
temperature range: –40°C to +125°C

2 Applications
• Zero-crossing detection and general-purpose
monitoring in:
– Solid-state relays (SSR) and circuit breakers
– Factory automation and control
– Building automation
– Appliances
– DC/DC converters

3 Description
The AMC23C10 is a precision, isolated comparator
with a short response time that is specifically
designed for zero-crossing detection of high-voltage
signals that must be galvanically isolated from
low-voltage circuitry. The open-drain and push-pull
outputs are separated from the input circuitry by an
isolation barrier that is highly resistant to magnetic
interference. This barrier is certified to provide
reinforced galvanic isolation of up to 5 kVRMS
according to VDE 0884-17 and UL1577, and supports
a working voltage of up to 1 kVPK.
The device offers an open-drain and a push-pull
output with a propagation delay of less than 320 ns.
The integrated low-dropout (LDO) regulator supports
an operating voltage range of 3 V to 27 V on the highvoltage
side, allowing the comparator to be powered
from a wide range of power supplies. The operating
voltage range on the low-side is 2.7 V to 5.5 V.
The AMC23C10 is available in an 8-pin, wide-body
SOIC package and is specified over the extended
industrial temperature range of –40°C to +125°C.