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Image TLC2543
型号: TLC2543
厂商: Texas Instruments Texas Instruments
标准:
分类: 半导体
描述: 12-bit analog-TO-digital converters with serial control and 11 analog inputs
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TLC2543的详细信息

Detail: Feature
TLC2543C, TLC2543I, TLC2543M  
12-BIT ANALOG-TO-DIGITAL CONVERTERS  
WITH SERIAL CONTROL AND 11 ANALOG INPUTS  
SLAS079D – DECEMBER 1993 – REVISED MAY 1997  
12-Bit-Resolution A/D Converter  
DB, DW, J, OR N 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  
11 Analog Input Channels  
3 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)  
Programmable MSB or LSB First  
Programmable Power Down  
Programmable Output Data Length  
CMOS Technology  
FK OR FN PACKAGE  
(TOP VIEW)  
?
Application Report Available  
3
2
1
20 19  
18  
AIN3  
AIN4  
AIN5  
AIN6  
AIN7  
I/O CLOCK  
DATA INPUT  
DATA OUT  
CS  
4
5
6
7
8
description  
17  
16  
15  
The TLC2543C and TLC2543I are 12-bit, switched-  
capacitor, successive-approximation, analog-to-  
digital converters. Each device has three control  
inputs [chip select (CS), the input-output clock (I/O  
CLOCK), and the address input (DATA INPUT)] and  
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.  
14 REF+  
9 10 11 12 13  
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.  
The TLC2543C is characterized for operation from T = 0°C to 70°C. The TLC2543I is characterized for  
A
operation from T = 40°C to 85°C. The TLC2543M is characterized for operation from T = 55°C to 125°C.  
A
A
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)  
Copyright ? 1997, 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  
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