1 Features
1• Input structure optimized for voltage
measurements:
– Input voltage range: ±1 V
– Input resistance: 1.5 GΩ (typ)
• Excellent DC performance:
– Offset error: ±0.5 mV (max)
– Offset drift: ±4 μV/°C (max)
– Gain error: ±0.25% (max)
– Gain drift: ±40 ppm/°C (max)
• Transient immunity: 115 kV/μs (typ)
• Missing high-side supply detection
• Safety-related certifications:
– 8000-VPEAK reinforced isolation per DIN VDE V
0884-11: 2017-01
– 5700-VRMS isolation for 1 minute per UL1577
– IEC 62368-1 end equipment standard

2 Applications
• Isolated AC and DC voltage measurement in:
– Uninterruptible power supplies
– Photovoltaic inverters
– Motor drives

3 Description
The AMC1336 is a precision, delta-sigma (ΔΣ)
modulator with the output separated from the input
circuitry by a capacitive double isolation barrier that is
highly resistant to magnetic interference. This barrier
is certified to provide reinforced isolation of up to
8000 VPEAK according to the DIN VDE V 0884-11 and
UL1577 standards. Used in conjunction with isolated
power supplies, this isolated modulator separates
parts of the system that operate on different commonmode
voltage levels and protects lower-voltage parts
from damage.
The unique wide, bipolar. ±1-V input voltage range of
the AMC1336 and its high input resistance support
direct connection of the device to resistive dividers in
high-voltage applications. When used with a digital
filter (for instance, as integrated in the
TMS320F28004x, TMS320F2807x or TMS320F2837x
microcontroller families) to decimate the output
bitstream, the device can achieve 16 bits of resolution
with a dynamic range of 87 dB at a data rate of
82 kSPS.
On the high-side, the AMC1336 is supplied by a
3.3-V or 5-V power supply. The isolated digital
interface operates from a 3.0-V, 3.3-V or 5-V power
supply.
The AMC1336 performance is specified over the
extended industrial temperature range of –40°C to
+125°C.