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参数资料
型号： TC7129CKW
元件分类： ADC
英文描述： 1-CH DUAL-SLOPE ADC, ACCESS, PQFP44
封装： PLASTIC, QFP-44
文件页数： 10/17页
文件大小： 185K
代理商： TC7129CKW
2
TC7129
4-1/2 DIGIT ANALOG-TO-DIGITAL
CONVERTER WITH ON-CHIP LCD DRIVERS
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V+ to V–) ............................................15V
Reference Voltage (REF HI or REF LO) .............. V+ to V–
Input Voltage (IN HI or IN LO) (Note 1) ................ V+ to V–
VDISP ................................................V+ to (DGND – 0.3V)
Digital Input, Pins
1, 2, 19, 20, 21, 22, 27, 37, 39, 40 .......... DGND to V+
Analog Input, Pins 25, 29, 30 ............................... V+ to V–
Package Power Dissipation (TA ≤ 70°C)
Plastic DIP ........................................................1.23W
PLCC ................................................................ 1.23W
Plastic QFP ....................................................... 1.00W
Operating Temperature Range .................... 0
°C to +70°C
Storage Temperature Range ................ – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
Notes: Input voltages may exceed supply voltages, provided input current
is limited to
±400 A. Currents above this value may result in invalid display
readings but will not destroy the device if limited to
±1 mA.
Dissipation ratings assume device is mounted with all leads soldered to
printed circuit board.
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above those
indicated in the operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS: V+ to V– = 9V, VREF = 1V, TA = +25°C, fCLK = 120 kHz, unless otherwise
indicated. Pin numbers refer to 40-pin DIP.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Input
Zero Input Reading
VIN = 0V, 200mV Scale
–0000
0000
+0000
Counts
Zero Reading Drift
VIN = 0V, 0°C < TA < +70°C—
±0.5
—
V/°C
Ratiometric Reading
VIN = VREF = 1000mV, Range = 2V
9997
9999
10000 Counts
Range Change Accuracy
VIN = 0.1V on Low Range
0.9999 1.0000
1.0001 Ratio
VIN = 1V on High Range
RE
Roll-Over Error
– VIN = +VIN = 199mV
—
1
2
Counts
NL
Linearity Error
200 mV Scale
—
1
—
Counts
CMRR
Common-Mode Rejection Ratio
VCM = 1V, VIN = 0V, 200mV Scale
—
110
—
dB
CMVR
Common-Mode Voltage Range
VIN = 0V
—
(V–) +1.5
—
V
200 mV Scale
—
(V+) –1
—
V
eN
Noise (Peak-to-Peak Value Not
VIN = 0V
—
14
—
VP-P
Exceeded 95% of Time)
200mV Scale
IIN
Input Leakage Current
VIN = 0V, Pins 32, 33
—
1
10
pA
Scale Factor Temperature
VIN = 199mV, 0°C < TA < +70°C
—
2
7
ppm/
°C
Coefficient
External VREF = 0ppm/°C
Power
VCOM
Common Voltage
V+ to Pin 28
2.8
3.2
3.5
V
Common Sink Current
Common = +0.1V
—
0.6
—
mA
Common Source Current
Common = –0.1V
—
10
—
A
DGND
Digital Ground Voltage
V+ to Pin 36, V+ to V– = 9V
4.5
5.3
5.8
V
Sink Current
DGND = +0.5V
—
1.2
—
mA
Supply Voltage Range
V+ to V–
69
12
V
IS
Supply Current Excluding Common Current
V+ to V– = 9V
—
0.8
1.3
mA
fCLK
Clock Frequency
—
120
360
kHz
VDISP Resistance
VDISP to V+
—50
—
k
Low-Battery Flag Activation Voltage
V+ to V–
6.3
7.2
7.7
V
Digital
Continuity Comparator
VOUT Pin 27 = High
100
200
—
mV
Threshold Voltages
VOUT Pin 27 = Low
—
200
400
mV
Pull-Down Current
Pins 37, 38, 39
—
2
10
A
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相关代理商/技术参数
参数描述
TC7129CKW713 功能描述:LCD 驱动器 w/LCD Driver 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
TC7129CLW 功能描述:LCD 驱动器 w/LCD Driver 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
TC7129CLW713 功能描述:LCD 驱动器 w/LCD Driver 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
TC7129CPL 功能描述:LCD 驱动器 w/LCD Driver 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
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