參數(shù)資料
型號(hào)： TC7135CKW
元件分類(lèi)： ADC
英文描述： 1-CH DUAL-SLOPE ADC, PQFP64
封裝： 10 X 10 MM, PLASTIC, MS-022, MQFP-44
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 471K
代理商： TC7135CKW
2004 Microchip Technology Inc.
DS21460C-page 1
TC7135
Features
Low Rollover Error: ±1 Count Max
Nonlinearity Error: ±1 Count Max
Reading for 0V Input
True Polarity Indication at Zero for Null Detection
Multiplexed BCD Data Output
TTL-Compatible Outputs
Differential Input
Control Signals Permit Interface to UARTs and
Microprocessors
Blinking Display Visually Indicates Overrange
Condition
Low Input Current: 1 pA
Low Zero Reading Drift: 2 V/°C
Auto-Ranging Supported with Overrange and
Underrange Signals
Available in PDIP and Surface-Mount Packages
Applications
Precision Analog Signal Processor
Precision Sensor Interface
High Accuracy DC Measurements
General Description
The TC7135 4-1/2 digit A/D Converter (ADC) offers
50 ppm (1 part in 20,000) resolution with a maximum
nonlinearity error of 1 count. An auto-zero cycle
reduces zero error to below 10 V and zero drift to
0.5 V/°C. Source impedance errors are minimized by
a 10 pA maximum input current. Rollover error is
limited to ±1 count.
Microprocessor-based
measurement
systems
are
supported by the BUSY, STROBE and RUN/HOLD
control signals. Remote data acquisition systems with
data transfer via UARTs are also possible. The addi-
tional control pins and multiplexed BCD outputs make
the TC7135 the ideal converter for display or
microprocessor-based measurement systems.
Functional Block Diagram
TC7135
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
100 k
Analog GND
100 k
Signal
Input
0.1 F
Set VREF = 1V
V–
REF IN
ANALOG
COMMON
INT OUT
AZ IN
BUFF OUT
CREF–
CREF+
–INPUT
+INPUT
D5 (MSD)
B1 (LSB)
B2
V+
UNDERRANGE
OVERRANGE
STROBE
RUN/HOLD
DIGTAL GND
POLARITY
CLOCK IN
BUSY
(LSD) D1
D2
D4
(MSB) B8
B4
D3
+5V
1F
100 k
1F
0.47 F
VREF IN
Clock Input
120 kHz
5V
4-1/2 Digit A/D Converter
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC7135CLI 功能描述:LED顯示驅(qū)動(dòng)器 4-1/2 Digit A/D BCD RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
TC7135CLI713 功能描述:LED顯示驅(qū)動(dòng)器 4-1/2 Digit A/D BCD RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
TC7135CPI 功能描述:LED顯示驅(qū)動(dòng)器 4-1/2 Digit A/D BCD RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
TC7135CPL 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:4-1/2 Digit A/D Converter
TC7136 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Low Power 3-1/2 Digit Analog-to-Digital Converter
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