PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

FEATURES

q 2.5V TO 5.25V OPERATION

q INTERNAL 2.5V REFERENCE

q DIRECT BATTERY MEASUREMENT

(0.5V TO 6V)

q ON-CHIP TEMPERATURE MEASUREMENT

q TOUCH-PRESSURE MEASUREMENT

Standard, Fast, and High-Speed Modes

q AUTO POWER DOWN

q TSSOP-16 AND VFBGA-48 PACKAGES

APPLICATIONS

q PERSONAL DIGITAL ASSISTANTS

q PORTABLE INSTRUMENTS

q POINT-OF-SALES TERMINALS

q PAGERS

q TOUCH SCREEN MONITORS

q CELLULAR PHONES

DESCRIPTION

The TSC2003 is a 4-wire resistive touch screen controller. It

also features direct measurement of two batteries, two aux-

iliary analog inputs, temperature measurement, and touch-

pressure measurement.

The TSC2003 has an on-chip 2.5V reference that can be

utilized for the auxiliary inputs, battery monitors, and tem-

perature-measurement modes. The reference can also be

powered down when not used to conserve power. The

internal reference will operate down to 2.7V supply voltage

while monitoring the battery voltage from 0.5V to 6V.

The TSC2003 is available in the small TSSOP-16 and

VFBGA-48 packages and is specified over the –40

°C to

+85

°C temperature range.

TSC2

003

TSC

2003

CDAC

SAR

Comparator

MUX

Interface

and

Control

Logic

SCL

SDA

A0

A1

Internal

Clock

Internal

+2.5V

REF

TEMP0

TEMP1

PENIRQ

Channel Select

V

DD

V

DD

X+

X–

Y+

Y–

V

BAT1

V

BAT2

V

REF

IN1

IN2

TSC2003

SBAS162D – NOVEMBER 2000 – REVISED SEPTEMBER 2004

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Copyright © 2000-2004, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

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