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参数资料
| 型号： | TC7135C/LI |
| 元件分类： | ADC |
| 英文描述： | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 1/28页 |
| 文件大小： | 443K |
| 代理商： | TC7135C/LI |
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2007 Microchip Technology Inc.
DS21460D-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
additional 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
Ω
Analog GND
100 k
Ω
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
Ω
1F
0.47 F
VREF IN
Clock Input
120 kHz
5V
4-1/2 Digit A/D Converter
相关PDF资料 |
PDF描述 |
|---|---|
| TC7135C/LI713 | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC28 |
| TC7135C/KW | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44 |
| TC7135C/BU | 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP64 |
| TC7135CJI | DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP28 |
| TC7135CLI | DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7135CLI713 | 功能描述:LED显示驱动器 4-1/2 Digit A/D BCD RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TC7135CPI | 功能描述:LED显示驱动器 4-1/2 Digit A/D BCD RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TC7135CPL | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit A/D Converter |
| TC7136 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low Power 3-1/2 Digit Analog-to-Digital Converter |
| TC7136A | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:LOW POWER, 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS |
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