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參數資料
| 型號： | TC7117ACLW |
| 元件分類： | ADC |
| 英文描述： | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 410K |
| 代理商： | TC7117ACLW |
2006 Microchip Technology Inc.
DS21457C-page 1
TC7116/A/TC7117/A
Features:
Low Temperature Drift Internal Reference:
- TC7116/TC7117 80 ppm/°C, Typ.
- TC7116A/TC7117A 20 ppm/°C, Typ.
Display Hold Function
Directly Drives LCD or LED Display
Zero Reading with Zero Input
Low Noise for Stable Display:
- 2V or 200mV Full Scale Range (FSR)
Auto-Zero Cycle Eliminates Need for Zero
Adjustment Potentiometer
True Polarity Indication for Precision Null
Applications
Convenient 9V Battery Operation:
(TC7116/TC7116A)
High-Impedance CMOS Differential Inputs: 1012
Ω
Low-Power Operation: 10mW
Applications:
Thermometry
Bridge Readouts: Strain Gauges, Load Cells,
Null Detectors
Digital Meters: Voltage/Current/Ohms/Power, pH
Digital Scales, Process Monitors
Portable Instrumentation
Device Selection Table
General Description:
The TC7116A/TC7117A are 3-1/2 digit CMOS Analog-
to-Digital Converters (ADCs) containing all the active
components necessary to construct a 0.05% resolution
measurement
system.
Seven-segment
decoders,
polarity and digit drivers, voltage reference, and clock
circuit are integrated on-chip. The TC7116A drives
Liquid Crystal Displays (LCDs) and includes a back-
plane driver. The TC7117A drives common anode Light
Emitting Diode (LED) displays directly with an 8mA
drive current per segment.
These devices incorporate a display hold (HLDR)
function. The displayed reading remains indefinitely, as
long as HLDR is held high. Conversions continue, but
output data display latches are not updated. The refer-
ence low input (VREF-) is not available, as it is with the
TC7106/7107. VREF- is tied internally to analog
common in the TC7116A/7117A devices.
The TC7116A/7117A reduces linearity error to less
than 1 count. Rollover error (the difference in readings
for equal magnitude but opposite polarity input signals)
is below ±1 count. High-impedance differential inputs
offer 1pA leakage current and a 1012
Ω input imped-
ance. The 15
μVP-P noise performance enables a “rock
solid” reading. The auto-zero cycle ensures a zero
display reading with a 0V input.
The TC7116A and TC7117A feature a precision, low
drift internal reference, and are functionally identical to
the TC7116/TC7117. A low drift external reference is
not normally required with the TC7116A/TC7117A.
Package Code
Package
Temperature Range
CPL
40-Pin PDIP
0
°C to +70°C
IJL
40-Pin CERDIP
-25
°C to +85°C
CKW
44-Pin PQFP
0
°C to +70°C
CLW
44-Pin PLCC
0
°C to +70°C
3-1/2 Digit Analog-to-Digital Converters with Hold
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| TC7117AIJL | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP40 |
| TC7117CKW | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44 |
| TC7117IJL | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP40 |
| TC7117ACKW713 | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44 |
| TC7117CKW713 | 1-CH 22-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TC7117ACLW713 | 功能描述:LED顯示驅動器 w/Hold RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格: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 |
| TC7117ACPL | 功能描述:LED顯示驅動器 w/Hold RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格: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 |
| TC7117AIJL | 功能描述:LED顯示驅動器 3-1/2 Digit A/D w/ Hold RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格: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 |
| TC7117CKW | 功能描述:LED顯示驅動器 w/Hold RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格: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 |
| TC7117CKW | 制造商:Microchip Technology Inc 功能描述:A/D Converter (A-D) IC |
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