VOUTP

VOUTN

VDD2

GND2

GND1

VINN

VINP

VDD1

AMC1301

HV+

HV-

To Load

Floating

Power Supply

3.3 V or 5.0 V

5.0 V

Gate

Driver

Gate

Driver

ADS7263

12-Bit ADC

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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. PRODUCT PREVIEW Information. Product in design phase of

development. Subject to change or discontinuance without notice.

AMC1301

SBAS667 – APRIL 2016

AMC1301 250-kHz, Fully-Differential Isolation Amplifier

1

1 Features

1

•

±250-mV Input Voltage Range Optimized for

Current Measurement Using Shunt Resistors

•

Low Offset Error and Drift:

±150 µV (Max) at 25°C, ±5 µV/°C (Max)

•

Fixed Gain: 8.2

•

Very Low Gain Error and Drift:

0.5% (Max) at 25°C, ±50 ppm/°C (Max)

•

Very Low Nonlinearity and Drift:

0.075% (Max), 2.4 ppm/°C

•

3.3-V Operation on High-Side and Low-Side

•

Fully Specified Over the Extended Industrial

Temperature Range

•

Surge Immunity: Up to 10 kV

•

Safety and Regulatory Approvals:

–

DIN V VDE V 0884-10

–

–

CSA Component Acceptance Notice 5A,

IEC 60065 and IEC 60950-1 End Equipment

Standards

2 Applications

•

Shunt-Resistor-Based Current Sensing In:

–

Motor Controls

–

Green Energy

–

Frequency Inverters

–

Uninterruptible Power Supplies

•

Isolated Voltage Sensing In:

–

Frequency Inverters

–

Power Supplies

3 Description

The AMC1301 is a precision isolation amplifier with

an output separated from the input circuitry by an

isolation barrier that is highly resistant to magnetic

interference. This barrier is certified to provide

according to VDE-V 0884-10 and UL1577. Used in

conjunction with isolated power supplies, this device

prevents noise currents on a high common-mode

voltage line from entering the local ground and

interfering with or damaging sensitive circuitry.

The input of the AMC1301 is optimized for direct

connection to shunt resistors or other low voltage-

level signal sources. The excellent performance of

the device supports accurate current control resulting

in system-level power saving and, especially in motor

control applications, lower torque ripple.

The AMC1301 is fully specified over the extended

industrial temperature range of –40°C to +125°C and

is available in the SOIC-8 (DWV) package.

Device Information (1)

DEVICE NAME

PACKAGE

BODY SIZE

AMC1301

SOIC (8)

5.85 mm × 7.50 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Schematic