AMC0136 Precision, ±1V Input, Functionally Isolated,

Delta-Sigma Modulator With External Clock

1 Features

• Linear input voltage range: ±1V

• High input impedance: 1GΩ (typical)

• Supply voltage range:

– High-side (AVDD): 3.0V to 5.5V

– Low-side (DVDD): 2.7V to 5.5V

• Low DC errors:

– Offset error: ±0.9mV (maximum)

– Offset drift: 8.5µV/°C (maximum)

– Gain error: ±0.25% (maximum)

– Gain drift: ±35ppm/°C (maximum)

• High CMTI: 150V/ns (minimum)

• Missing high-side supply detection

• Low EMI: Meets CISPR-11 and CISPR-25

standards

• Functional Isolation:

– 200VRMS, 280VDC working voltage

– 570VRMS, 800VDC transient overvoltage (60s)

• Safety-related certifications:

– DIN EN IEC 60747-17 (VDE 0884-17)

– UL1577

• Fully specified over the extended industrial

temperature range: –40°C to +125°C

2 Applications

• 48V motor drives

• 48V frequency inverters

• Analog input modules

• Power supplies

3 Description

The AMC0136 is a precision, galvanically isolated

delta-sigma (ΔΣ) modulator with a ±1V, high

impedance input and external clock. The high-

impedance input is optimized for connection to high-

impedance resistive dividers or other voltage signal

sources with high output resistance.

The isolation barrier separates parts of the system

that operate on different common-mode voltage

levels. The isolation barrier supports a working

voltage up to 200VRMS / 280VDC and transient

overvoltages up to 570VRMS / 800VDC.

With a small package size and high input impedance,

the AMC0136 is designed for high accuracy, isolated

voltage sensing in space-constrained applications.

The output bitstream of the AMC0136 is synchronized

to an external clock. Combined with a sinc3, OSR

256 filter, the device achieves 14.8 effective bits of

resolution or 89dB of dynamic range, at a sample rate

of 39kSPS.

The AMC0136 is available in a 8-pin, 0.65mm

pitch VSON package and is fully specified over the

temperature range from –40°C to +125°C.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

AMC0136

DEN (VSON 8)

3.5mm × 2.7mm

(1)

For more information, see the Mechanical, Packaging, and

Orderable Information section.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

Interface

DVDD

Low-side supply

(3.3 V or 5 V)

CLKIN

DOUT

DGND

AGND

INP

SNSN

AVDD

High-side supply

(3.3 V or 5 V)

MCU

VAC

+1 V

0 V

–1 V

RSNS

R1

ΔΣ

MOD

Typical Application

AMC0136

SBASAZ0A – AUGUST 2024 – REVISED DECEMBER 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.