u

Power Register

Current Register

Voltage Register

Alert Register

I

Compatible

Interface

VBUS

ADC

V

I

A0

A1

Alert

SDA

SCL

C

0.1 PF

BYPASS

Load

VS

(Supply Voltage)

Power Supply

(0 V to 36 V)

IN+

GND

IN-

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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.

INA260

SBOS656A – JULY 2016 – REVISED AUGUST 2016

INA260

Precision Digital Current and Power Monitor with Low-Drift, Precision Integrated Shunt

1

1 Features

1

•

Precision Integrated Shunt Resistor:

–

15-A Continuous from –40°C to +85°C

–

0°C to +125°C Temperature Coefficient:

–

10 ppm/°C

•

Senses Bus Voltages From 0 V to 36 V

•

High-Side or Low-Side Sensing

•

Reports Current, Voltage, and Power

•

High Accuracy:

–

0.1% Gain Error (max)

–

5-mA Offset (max)

•

Configurable Averaging Options

•

16 Programmable Addresses

•

Operates from a 2.7-V to 5.5-V Power Supply

•

16-Pin, TSSOP Package

2 Applications

•

Servers

•

Telecom Equipment

•

Computing

•

Power Management

•

Battery Chargers

•

Power Supplies

•

Test Equipment

3 Description

The INA260 is an integrated shunt, digital-output,

SMBus™-compatible interface. This device integrates

an precision shunt resistor to enable high-accuracy

current and power measurements at common-mode

voltages that can vary from 0 V to 36 V, independent

of the supply voltage. The device is a bidirectional,

low-

or

high-side,

current-shunt

monitor

that

measures current flowing in both directions through

the internal current-sensing resistor sensor. The

integration of the precision current-sensing resistor

provides

calibration-equivalent

measurement

accuracy with ultra-low temperature drift performance

and ensures that an optimized Kelvin layout for the

sensing resistor is always obtained.

The

INA260

features

up

to

16

programmable

interface

allows

programmable

alert

thresholds,

analog-to-digital converter (ADC) conversion times,

and averaging. To facilitate ease of use, an internal

multiplier enables direct readouts of current in

amperes and power in watts.

The device operates from a single 2.7-V to 5.5-V

supply, drawing 330 μA (typical) of supply current.

The

INA260

is

specified

over

the

operating

temperature range between –40°C and +125°C and

is available in the 16-pin TSSOP package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA260

TSSOP (16)

5.00 mm x 4.40 mm

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

the end of the datasheet.

High-Side Sensing Application