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参数资料
| 型号： | TC7136RCKW |
| 元件分类： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQFP44 |
| 封装： | PLASTIC, QFP-44 |
| 文件页数： | 1/15页 |
| 文件大小： | 134K |
| 代理商： | TC7136RCKW |
TC7136
TC7136A
TC7136-6
10/18/96
2001 Microchip Technology Inc.
DS21461A
A or blank*
R (reversed pins) or blank (CPL pkg only)
* "A" parts have an improved reference TC
Package Code (see below):
TYPICAL APPLICATIONS
s
Thermometry
s
Bridge Readouts: Strain Gauges, Load Cells, Null
Detectors
s
Digital Meters: Voltage/Current/Ohms/Power, pH
s
Digital Scales, Process Monitors
s
Portable Instrumentation
ORDERING INFORMATION
PART CODE
TC7136X X XXX
Package
Temperature
Code
Package
Pin Layout
Range
CKW
44-Pin PQFP
Formed Leads
0
°C to +70°C
CLW
44-Pin PLCC
—
0
°C to +70°C
CPL
40-Pin PDIP
Normal
0
°C to +70°C
40-Pin Plastic DIP
44-Pin Plastic Quad Flat
Package Formed Leads
44-Pin Plastic Chip
Carrier PLCC
VREF
+
TC7136
TC7136A
33
34
240 k
10 k
31
29
39
38
40
VREF
–
0.47
F
0.1
F
V
–
1
OSC
3
OSC
2
OSC
TO ANALOG COMMON
(PIN 32)
1 CONVERSION/SEC
COSC
560 k
180 k
0.15
F
0.01
F
ANALOG
INPUT
+
–
CREF
–
CREF
+
VIN
+
VIN
–
ANALOG
COMMON
VINT
VBUFF
CAZ
20
21
1
SEGMENT
DRIVE
9–19
22–25
POL
BP
V
+
MINUS SIGN
BACKPLANE
28
50 pF
LCD
1 M
27
30
32
35
36
9V
+
ROSC
26
TYPICAL OPERATING CIRCUIT
AVAILABLE PACKAGES
Low Power 3-1/2 Digit Analog-To-Digital Converters
FEATURES
s
Fast Overrange Recovery, Guaranteed First
Reading Accuracy
s
Low Temperature Drift Internal Reference
TC7136 ...................................... 70 ppm/
°C Typ.
TC7136A ..................................... 35ppm/
°C Typ.
s
Guaranteed Zero Reading With Zero Input
s
Low Noise .................................................... 15
VP-P
s
High Resolution .............................................. 0.05%
s
Low Input Leakage Current ...................... 1pA Typ.
10pA Max
s
Precision Null Detectors With True Polarity at
Zero
s
High-Impedance Differential Input
s
Convenient 9V Battery Operation With
Low Power Dissipation ........................ 500
W Typ.
900
W Max
GENERAL DESCRIPTION
The TC7136 and TC7136A are low-power, 3-1/2 digit
with liquid crystal display (LCD) drivers with analog-to-
digital converters. These devices incorporate an "integra-
tor output zero" phase which guarantees overrange
recovery. The performance of existing TC7126, TC7126A
and ICL7126-based systems may be upgraded with minor
changes to external, passive components.
The TC7136A has an improved internal zener refer-
ence voltage circuit which maintains the analog common
temperature drift to 35ppm/
°C (typical) and 75 ppm/°C
(maximum). This represents an improvement of two to four
times over similar 3-1/2 digit converters. The costly, space-
consuming external reference source may be removed.
The TC7136/A limits linearity error to less than 1 count
on 200mV or 2V full-scale ranges. Roll-over error — the
difference in readings for equal magnitude but opposite
polarity input signals — is below
±1 count. High-impedance
differential inputs offer 1 pA leakage currents and a 1012
input impedance. The differential reference input allows
ratiometric measurements for ohms or bridge transducer
measurements. The 15
VP-P noise performance guaran-
tees a "rock solid" reading. The auto-zero cycle guarantees
a zero display readout for a 0V input.
相关PDF资料 |
PDF描述 |
|---|---|
| TC7136ACPL | 1-CH DUAL-SLOPE ADC, PDIP40 |
| TC7136ARCPL | 1-CH DUAL-SLOPE ADC, PDIP40 |
| TC7136ARCKW | 1-CH DUAL-SLOPE ADC, PQFP44 |
| TC7136CPL | 1-CH DUAL-SLOPE ADC, PDIP40 |
| TC7136ARCLW | 1-CH DUAL-SLOPE ADC, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7136RCPL | 功能描述:LCD 驱动器 Low Power RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC713A | 制造商:Thomas & Betts 功能描述:Fittings Connector 1inch Steel |
| TC713A-RT | 制造商:Thomas & Betts 功能描述:Fittings Connector 1inch Steel |
| TC714A | 制造商:Thomas & Betts 功能描述:Fittings Connector 1.25inch Steel |
| TC714A-RT | 制造商:Thomas & Betts 功能描述:Fittings Connector 1.25inch Male Steel |
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