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TLC542

更新时间： 2024-11-02 11:58:39
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德州仪器 - TI 转换器输入元件
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12页 178K
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8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS

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TLC542 数据手册

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TLC542C, TLC542I  
8-BIT ANALOG-TO-DIGITAL CONVERTERS  
WITH SERIAL CONTROL AND 11 INPUTS  
SLAS075C – FEBRUARY 1989 – REVISED JUNE 2001  
DW OR N PACKAGE  
(TOP VIEW)  
8-Bit Resolution A/D Converter  
Microprocessor Peripheral or Stand-Alone  
Operation  
INPUT A0  
INPUT A1  
INPUT A2  
INPUT A3  
INPUT A4  
INPUT A5  
INPUT A6  
INPUT A7  
INPUT A8  
GND  
V
CC  
EOC  
I/O CLOCK  
ADDRESS INPUT  
DATA OUT  
CS  
REF+  
REF–  
INPUT A10  
INPUT A9  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
On-Chip 12-Channel Analog Multiplexer  
Built-In Self-Test Mode  
Software-Controllable Sample and Hold  
Total Unadjusted Error . . . ±0.5 LSB Max  
Direct Replacement for Motorola  
MC145041  
Onboard System Clock  
End-of-Conversion (EOC) Output  
Pinout and Control Signals Compatible  
With the TLC1542/3 10-Bit A/D Converters  
FN PACKAGE  
(TOP VIEW)  
CMOS Technology  
PARAMETER  
Channel Acquisition/Sample Time  
Conversion Time (Max)  
VALUE  
16 µs  
20 µs  
3
Samples per Second (Max)  
Power Dissipation (Max)  
25 × 10  
3
2
1
20 19  
18  
I/O CLOCK  
INPUT A3  
10 mW  
4
5
6
7
8
ADDRESS INPU  
DATA OUT  
CS  
INPUT A4  
INPUT A5  
INPUT A6  
INPUT A7  
17  
description  
16  
15  
14  
The TLC542 is a CMOS converter built around an  
8-bit switched-capacitor successive-approximation  
analog-to-digital converter. The device is designed  
for serial interfacetoa microprocessor or peripheral  
via a 3-state output with three inputs [including I/O  
CLOCK, CS (chip select), and ADDRESS INPUT].  
The TLC542 allows high-speed data transfers and  
REF+  
9 10 11 12 13  
sample rates of up to 40,000 samples per second. In addition to the high-speed converter and versatile control  
logic, an on-chip 12-channel analog multiplexer can sample any one of 11 inputs or an internal self-test voltage,  
and the sample and hold is started under microprocessor control. At the end of conversion, the end-of-  
conversion (EOC) output pin goes high to indicate that conversion is complete.  
The converter incorporated in the TLC542 features differential high-impedance reference inputs that facilitate  
ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noises. A switched-  
capacitor design allows low-error (±0.5 LSB) conversion in 20 µs over the full operating temperature range.  
The TLC542C is characterized for operation from 0°C to 70°C and the TLC542I is characterized for operation  
from –40°C to 85°C.  
AVAILABLE OPTIONS  
PACKAGE  
T
A
CHIP CARRIER  
(FN)  
PLASTIC DIP  
(N)  
SMALL OUTLINE  
(DW)  
0°C to 70°C  
—
TLC542CN  
TLC542IN  
TLC542CDW  
TLC542IDW  
–40°C to 85°C  
TLC542IFN  
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.  
Copyright 2001, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...12

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与TLC542相关器件

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TLC542C TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS
TLC542CDW TI

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TLC542CDWR TI

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TLC542CDWRG4 TI

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 		8-Bit, 25kSPS ADC Serial-Out, On-Chip 11-Ch. Analog MUX 20-SOIC
TLC542CN TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS
TLC542I TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS
TLC542IDW TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS
TLC542IDWR TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS
TLC542IDWREP TI

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 		11-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20, GREEN, SOIC-20
TLC542IFN TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 INPUTS

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