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TLC545MJ

更新时间： 2024-11-02 13:14:47
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德州仪器 - TI 转换器输入元件
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TLC545MJ 数据手册

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TLC545C, TLC545I, TLC546C, TLC546I  
8-BIT ANALOG-TO-DIGITAL CONVERTERS  
WITH SERIAL CONTROL AND 19 INPUTS  
SLAS066B – DECEMBER 1985 – REVISED OCTOBER 1996  
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  
INPUT A9  
INPUT A10  
INPUT A11  
INPUT A12  
GND  
V
CC  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
On-Chip 20-Channel Analog Multiplexer  
Built-in Self-Test Mode  
SYSTEM CLOCK  
I/O CLOCK  
ADDRESS INPUT  
DATA OUT  
CS  
2
3
Software-Controllable Sample and Hold  
Total Unadjusted Error . . . ±0.5 LSB Max  
4
5
6
Timing and Control Signals Compatible  
With 8-Bit TLC540 and 10-Bit TLC1540 A/D  
Converter Families  
REF+  
REF–  
7
8
INPUT A18  
INPUT A17  
INPUT A16  
INPUT A15  
INPUT A14  
INPUT A13  
9
CMOS Technology  
10  
11  
12  
13  
14  
PARAMETER  
TL545  
TL546  
Channel Acquisition Time  
Conversion Time (Max)  
Sampling Rate (Max)  
1.5 µs  
9 µs  
76 x 10  
15 mW  
2.7 µs  
17 µs  
40 x 10  
15 mW  
3
3
Power Dissipation (Max)  
FN PACKAGE  
(TOP VIEW)  
description  
The TLC545 and TLC546 are CMOS  
analog-to-digital converters built around an 8-bit  
switched capacitor successive-approximation  
analog-to-digital converter. They are designed for  
serial interface to a microprocessor or peripheral  
via a 3-state output with up to four control inputs  
including independent SYSTEM CLOCK, I/O  
CLOCK, chip select (CS), and ADDRESS INPUT.  
A 4-MHz system clock for the TLC545 and a  
2.1-MHz system clock for the TLC546 with a  
design that includes simultaneous read/write  
operation allowing high-speed data transfers and  
sample rates of up to 76,923 samples per second  
for the TLC545, and 40,000 samples per second  
for the TLC546.  
4
3
2 1 28 27 26  
INPUT A4  
5
25  
24  
23  
22  
21  
20  
19  
ADDRESS INPUT  
DATA OUT  
CS  
REF+  
REF–  
INPUT A5  
INPUT A6  
INPUT A7  
INPUT A8  
INPUT A9  
INPUT A10  
6
7
8
9
INPUT A18  
INPUT A17  
10  
11  
12 13 14 15 16 17 18  
In addition to the high-speed converter and  
versatile control logic, there is an on-chip  
20-channel analog multiplexer that can be used to  
sample any one of 19 inputs or an internal self-test  
voltage, and a sample-and-hold that can operate  
automatically or under microprocessor control.  
The converters incorporated in the TLC545 and TLC546 feature differential high-impedance reference inputs  
thatfacilitateratiometricconversion, scaling, andanalogcircuitryisolationfromlogicandsupplynoises. Atotally  
switched capacitor design allows low-error (±0.5 LSB) conversion in 9 µs for the TLC545, and 17 µs for the  
TLC546, 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.  
Copyright 1996, 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...13

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与TLC545MJ相关器件

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TLC546C TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 19 INPUTS
TLC546CFN TI

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 		19-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC28
TLC546CN TI

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 		19-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP28
TLC546I TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 19 INPUTS
TLC546IDW TI

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 		暂无描述
TLC546IFN TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 19 INPUTS
TLC546IN TI

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 		8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 19 INPUTS
TLC546IN3 TI

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 		IC,DATA ACQ SYSTEM,19-CHANNEL,8-BIT,DIP,28PIN,PLASTIC
TLC546MJ TI

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 		IC,DATA ACQ SYSTEM,19-CHANNEL,8-BIT,DIP,28PIN,CERAMIC
TLC546MN TI

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 		8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP28

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