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AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6

AIN7

AIN8

GND

EOC

I/O CLOCK

DATA INPUT

DATA OUT

CS

REF +

REF −

AIN10

AIN9

(TOP VIEW)

DW PACKAGE

DESCRIPTION/ORDERING INFORMATION

TLC2543-EP

12-BIT ANALOG-TO-DIGITAL CONVERTER

WITH SERIAL CONTROL AND 11 ANALOG INPUTS

SGLS125A – JULY 2002 – REVISED NOVEMBER 2006

• Controlled Baseline

• Programmable Power Down

–

One Assembly/Test Site, One Fabrication

• Programmable Output Data Length

Site

• CMOS Technology

• Extended Temperature Performance of –40°C

to 125

°C (TLC2543Q) and –55°C to 125°C

(TLC2543M)

• Enhanced Diminishing Manufacturing Sources

(DMS) Support

• Enhanced Product Change Notification

• 12-Bit-Resolution Analog-to-Digital Converter

(ADC)

• 10-µs Conversion Time Over Operating

Temperature

• 11 Analog Input Channels

• Three Built-In Self-Test Modes

• Inherent Sample-and-Hold Function

• Linearity Error . . . ±1 LSB Max

• On-Chip System Clock

• End-of-Conversion (EOC) Output

• Unipolar or Bipolar Output Operation (Signed

Binary With Respect to 1/2 the Applied

Voltage Reference)

• Programmable Most Significant Bit (MSB) or

Least Significant Bit (LSB) First

(1)

Component qualification in accordance with JEDEC and

industry standards to ensure reliable operation over an

extended temperature range. This includes, but is not limited

to, Highly Accelerated Stress Test (HAST) or biased 85/85,

temperature cycle, autoclave or unbiased HAST,

electromigration, bond intermetallic life, and mold compound

life. Such qualification testing should not be viewed as

justifying use of this component beyond specified

(2)

Microcontroller Based Data Acquisition Using the TLC2543

performance and environmental limits.

12-bit Serial-Out ADC (SLAA012)

The TLC2543 is a 12-bit, switched-capacitor, successive-approximation, analog-to-digital converter (ADC). This

device, with three control inputs [chip select (CS), input-output clock (I/O CLOCK), and address input (DATA

INPUT)], is designed for communication with the serial port of a host processor or peripheral through a serial

3-state output. The device allows high-speed data transfers from the host.

In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel

multiplexer that can select any 1 of 11 inputs or any 1 of 3 internal self-test voltages. The sample-and-hold

function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high to indicate that

conversion is complete. The converter incorporated in the device features differential high-impedance reference

inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise.

A switched-capacitor design allows low-error conversion over the full operating temperature range.

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

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2002–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.