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ꢉ ꢃ ꢇꢊꢋ ꢀ ꢌꢍꢌ ꢁꢎ ꢏ ꢇꢀꢎ ꢇꢐꢋꢏ ꢋ ꢀꢌꢁ ꢂꢎ ꢍꢑ ꢒꢓ ꢀꢒ ꢓ ꢔ
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SGLS218B − NOVEMBER 2003 − REVISED NOVEMBER 2004
D
Qualification in Accordance With
AEC-Q100
D
D
D
D
D
Programmable MSB or LSB First
Programmable Power Down
Programmable Output Data Length
CMOS Technology
†
D
Qualified for Automotive Applications
D
Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
‡
Application Report Available
D
D
12-Bit Resolution A/D Converter
DB OR DW PACKAGE
(TOP VIEW)
10-µs Conversion Time Over Operating
Temperature
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
GND
V
CC
EOC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
D
D
D
D
D
D
D
11 Analog Input Channels
Three Built-In Self-Test Modes
Inherent Sample-and-Hold Function
Linearity Error . . . 1 LSB Max
On-Chip System Clock
I/O CLOCK
DATA INPUT
DATA OUT
CS
14 REF+
End-of-Conversion Output
13
12
11
REF−
AIN10
AIN9
Unipolar or Bipolar Output Operation
(Signed Binary With Respect to 1/2 the
Applied Voltage Reference)
†
Contact Texas Instruments for details. Q100 qualification data
available on request.
description
The TLC2543 is a 12-bit, switched-capacitor, successive-approximation, analog-to-digital converters. Each
device, with three control inputs [chip select (CS), the input-output clock, and the 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 one of 11 inputs or any one of three 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.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
§
PACKAGE
T
A
−40°C to 85°C
−40°C to 125°C
SSOP − DB
SOP − DW
Tape and reel
Tape and reel
TLC2543IDBRQ1
TLC2543QDWRQ1
TLC2543Q1
TLC2543Q1
§
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
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.
‡
Microcontroller Based Data Acquisition Using the TLC2543 12-bit Serial-Out ADC (SLAA012)
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Copyright 2004 Texas Instruments Incorporated
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1
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