AD8233CB-EBZ User Guide

UG-1016

One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluating the AD8233 50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate

Monitor for Wearable Products

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 12

FEATURES

Ready to use HRM front end

Operates in two-electrode or three-electrode configurations

Directly interfaces to data acquisition and analog-to-digital

converters (ADCs)

Easy mode selection with switches

Allows various circuit configurations

3.5 mm electrode jack

EVALUATION KIT CONTENTS

AD8233CB-EBZ evaluation board

EQUIPMENT NEEDED

Power supply

Electrocardiogram (ECG) signal generator

Sensor cable (optional)

ONLINE RESOURCES

AD8233 data sheet

AD8233CB-EBZ user guide

AN-617 application note

GENERAL DESCRIPTION

The AD8233CB-EBZ evaluation board contains an AD8233

heart rate monitor (HRM) front end conveniently mounted

with the necessary components for initial evaluation in fitness

applications. Inputs, outputs, supplies, and leads off detection

terminals are routed to test pins to simplify connectivity. Switches

and jumpers are available for setting the input bias voltage,

shutdown (SDN), right leg drive shutdown (RLD SDN), fast

restore (FR), and ac/dc leads off detection mode.

The AD8233CB-EBZ evaluation board is a 4-layer board with

components mounted on the primary side only. Rubber feet are

available on the secondary side for mechanical stability. The layout

diagrams are provided as a visual aid and reference design. The

printed circuit board (PCB) is designed following standard

practices to ensure signal integrity and reduce manufacturing costs.

For best WLCSP layout practices, refer to AN-617.

Full details about the AD8233 are available in the AD8233 data

sheet, which is available from Analog Devices, Inc., and should

be consulted in conjunction with this user guide when using

this evaluation board.

PHOTOGRAPH OF THE AD8233CB-EBZ EVALUATION BOARD

Figure 1.