AMC0136 Precision, ±1V Input, Functionally Isolated,

Delta-Sigma Modulator With External Clock

1 Features

• Linear input voltage range: ±1V

• High input impedance: 1.1GΩ (typ)

• 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 (max)

– Offset drift: ±7µV/°C (max)

– Gain error: ±0.25% (max)

– Gain drift: ±40ppm/°C (max)

• High CMTI: 150V/ns (min)

• 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)

• Fully specified over 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, functionally isolated,

delta-sigma modulator with a high-impedance input

and a ±1V input voltage range. 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 galvanic isolation barrier supports high common-

mode transients and allows for isolating sensitive

control circuitry from switching noise from the power

stage.

The output bitstream of the AMC0136 is synchronized

to an external clock. Combined with a sinc3, OSR 256

filter, the device achieves 16 bits of resolution with an

89dB dynamic range and a 39kSPS data rate.

The AMC0136 is available in an 8-pin, 0.65mm pitch

VSON package and is specified over the extended

industrial temperature range of –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.

(2)

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

includes pins, where applicable.

DVDD

Low-side supply

(3.3 V or 5 V)

CLKIN

DOUT

DGND

AGND

IN

AGND

AVDD

High-side supply

(3.3 V or 5 V)

ISO

-ADC

MCU

VAC

+1 V

0 V

–1 V

Typical Application Schematic

AMC0136

SBASAZ0 – AUGUST 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. ADVANCE INFORMATION for preproduction products; subject to change

without notice.