TLC1542_13 Datasheet, PDF (1/33 Pages) Texas Instruments – 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS

TLC1542I, TLC1542M, TLC1542Q
TLC1542C, TLC1543C, TLC1543I, TLC1543Q
www.ti.com
SLAS052G – MARCH 1992 – REVISED JANUARY 2006
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
FEATURES
• 10-Bit Resolution A/D Converter
• 11 Analog Input Channels
• Three Built-In Self-Test Modes
• Inherent Sample-and-Hold Function
• Total Unadjusted Error: ±1LSB Max
• On-Chip System Clock
• End-of-Conversion (EOC) Output
• Terminal Compatible With TLC542
• CMOS Technology
DESCRIPTION
The TLC1542C, TLC1542I, TLC1542M, TLC1542Q,
TLC1543C, TLC1543I, and TLC1543Q are CMOS
10-bit switched-capacitor successive-approximation
analog-to-digital converters. These devices have
three inputs and a 3-state output [chip select (CS),
input-output clock (I/O CLOCK), address input
(ADDRESS), and data output (DATA OUT)] that
provide a direct 4-wire interface to the serial port of a
host processor. These devices allow high-speed data
transfers from the host.
In addition to a high-speed A/D converter and
versatile control capability, these devices have an
on-chip 14-channel multiplexer that can select any
one of 11 analog inputs or any one of three internal
self-test voltages. The sample-and-hold function is
automatic. At the end of A/D conversion, the
end-of-conversion (EOC) output goes high to
indicate that conversion is complete. The converter
incorporated in the devices 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 free-air
temperature range.
DB, DW, J, OR N PACKAGE
(TOP VIEW)
A0 ₁
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
20 ^VCC
19 EOC
18 I/O CLOCK
17 ADDRESS
16 DATA OUT
15 CS
14 REF +
13 REF −
12 A10
11 A9
FK OR FN PACKAGE
(TOP VIEW)
A3
3 2 1 20 19
4
18
I/O CLOCK
A4 ₅
17 ^ADDRESS
A5 6
16 DATA OUT
A6 7
15 CS
A7 8
14 REF +
9 10 11 12 13
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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