參數(shù)資料
型號(hào)： TC534
廠商： Microchip Technology Inc.
英文描述： 5V Precision Data Acquisition Subsystems
中文描述： 5V的高精度數(shù)據(jù)采集子系統(tǒng)
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 158K
代理商： TC534
3-47
TELCOM SEMICONDUCTOR, INC.
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8
TC530
TC534
5V PRECISION DATA ACQUISITION SUBSYSTEMS
EVALUATION
KIT
AVAILABLE
TC530/534-3 11/14/96
FEATURES
I
I
I
Precision (up to 17 Bits) A/D Converter
3 Wire Serial Port
Flexible: User Can Trade-Off Conversion Speed
Against Resolution
Single Supply Operation
–5V Output Pin
4 Input, Differential Analog MUX (TC534)
Automatic Input Polarity and Overrange Detection
Low Operating Current ............................ 5mA Max
Wide Analog Input Range ......................
±
4.2V Max
Cost Effective
I
I
I
I
I
I
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ORDERING INFORMATION
Part No.
Package
Temp. Range
TC530COI
TC530CPJ
TC534CKW
TC534CPL
TC530EV
28-Pin SOIC
28-Pin Plastic DIP (300 Mil.)
44-Pin PQFP
40-Pin Plastic DIP
Evaluation Kit for TC530/534
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
The TC530/534 are serial analog data acquisition sub-
systems ideal for high precision measurements (up to 17 bits
plus sign). The TC530 consists of a dual slope integrating
A/D converter, negative power supply generator and 3 wire
serial interface port. The TC534 is identical to the TC530, but
adds a four channel differential input multiplexer. Key A/D
converter operating parameters (Auto Zero and Integration
time) are programmable, allowing the user to trade-off
conversion time for resolution.
Data conversion is initiated when the RESET input is
brought low. After conversion, data is loaded into the output
shift register and EOC is asserted indicating new data is
available. The converted data (plus Overrange and polarity
bits) is held in the output shift register until read by the
processor, or until the next conversion is completed allowing
the user to access data at any time.
The TC530/534 timebase can be derived from an exter-
nal crystal of 2MHz (max), or from an external frequency
source. The TC530/534 requires a single 5V power supply
and features a – 5V, 10mA output which can be used to
supply negative bias to other components in the system.
A0 A1
OSC
IN
Negative
Supply Output
EOC
R/W
D
IN
D
OUT
D
CLK
OSC
OUT
OSC
RESET
CAP+
CAP –
C
AZ
TC05
TC530
TC534
C
REF
R
INT
C
INT
TC534
(Only)
(TC530 Only)
DC-TO-DC
CONVERTER
State
Machine
Serial Port
Oscillator
(
÷
4)
Dual Slope A/D Converter
.01
μ
F
0.01
μ
F
Optional
Power-On
Reset Cap
100k
10k
+5V
DIF.
MUX
(TC534
Only)
CH1
CH1
CH2
CH2
CH3
CH3
CH4
CH4
V
IN
V
IN
IN
IN
A
B
CMPTR
BUF
INT
C
AZ
V
REF
V
REF
C
REF
C
REF
ACOM
–
–
–
–
–
+
+
+
+
+
V
DD
V
DD
V
DD
V
DD
V
SS
+
–
相關(guān)PDF資料
PDF描述
TC534CPL 5V Precision Data Acquisition Subsystems
TC530COI 5V Precision Data Acquisition Subsystems
TC534CKW 5V Precision Data Acquisition Subsystems
TC530CPJ 5V PRECISION DATA ACQUISITION SUBSYSTEMS
TC530 5V PRECISION DATA ACQUISITION SUBSYSTEMS
相關(guān)代理商/技術(shù)參數(shù)
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