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參數(shù)資料
| 型號(hào)： | TC7117ACKW |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 3-1/2 Digit Analog-to-Digital Converters with Hold |
| 中文描述： | 3-1/2數(shù)字模擬數(shù)字轉(zhuǎn)換器與保持 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 218K |
| 代理商： | TC7117ACKW |
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3-203
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
V+
TC7116/A
TC7117/A
9V
VREF
33
34
24 k
1 k
31
29
36
39
38
40
0.47 μF
0.1 μF
V–
1
OSC
3
OSC
2
OSC
TO ANALOG
COMMON (PIN 32)
3 CONVERSIONS/SEC
COSC
100 k
47 k
0.22 μF
0.01 μF
ANALOG
INPUT
–
+
C–
C+
VIN
+
VIN
–
ANALOG
COMMON
VINT
VBUFF
CAZ
20
21
35
SEGMENT
DRIVE
2–19
22–25
POL
BP/GND
V+
MINUS SIGN
BACKPLANE
DRIVE
28
ROSC100 pF
LCD DISPLAY (TC7116/7116A)
OR COMMON ANODE LED
DISPLAY (TC7117/7117A)
1 M
27
30
32
HLDR
DISPLAY
HOLD
100 mV
1
26
+
FEATURES
I
Low Temperature Drift Internal Reference
TC7116/TC7117............................. 80 ppm/
°
C Typ
TC7116A/TC7117A........................ 20 ppm/
°
C Typ
I
Display Hold Function
I
Directly Drives LCD or LED Display
I
Guaranteed Zero Reading With Zero Input
I
Low Noise for Stable
Display .........2V or 200 mV Full-Scale Range (FSR)
I
Auto-Zero Cycle Eliminates Need for Zero
Adjustment Potentiometer
I
True Polarity Indication for Precision Null
Applications
I
Convenient 9V Battery Operation
(TC7116/TC7116A)
I
High Impedance CMOS Differential Inputs.... 10
12
I
Low Power Operation.................................... 10 mW
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 backplane driver. The
TC7117A drives common anode light emitting diode (LED)
displays directly with an 8-mA 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 reference
low input (V
–
7107. V
–
TC7116A/7117A devices.
The TC7116A/7117A reduces linearity error to less
than 1 count. 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 current and a 10
12
input impedance. The 15
μ
V
P-P
noise performance guarantees a “rock solid” reading.
The auto-zero cycle guarantees 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.
REF
) is not available as it is with the TC7106/
REF
is tied internally to analog common in the
AVAILABLE PACKAGES
40-Pin Plastic
DIP
40-Pin CerDIP
44-Pin Plastic Quad Flat
Package Formed Leads
44-Pin Plastic Chip
Carrier PLCC
Package
Code
Temperature
Range
Package
CKW
CLW
CPL
IJL
44-Pin PQFP
44-Pin PLCC
40-Pin Plastic DIP
40-Pin CerDIP
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
– 25
°
C to +85
°
C
Figure 1. Typical TC7116/A/7/A Operating Circuit
TC7116
TC7116A
TC7117
TC7117A
TC7116/A/7117/A-7 10/18/96
ORDERING INFORMATION
PART CODE
}
TC711X X X XXX
6 = LCD
7 = LED
A or blank*
R (reversed pins) or blank (CPL pkg. only)
* "A" parts have an improved reference TC
Package Code
(see below)
:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC7116CLW | 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
| TC7116 | 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
| TC7116A | 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
| TC7116ACLW | 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
| TC7116ACPL | 3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC7117ACKW713 | 功能描述:LED顯示驅(qū)動(dòng)器 w/Hold 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 |
| TC7117ACLW | 功能描述:LED顯示驅(qū)動(dòng)器 w/Hold 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 |
| TC7117ACLW713 | 功能描述:LED顯示驅(qū)動(dòng)器 w/Hold 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 |
| TC7117ACPL | 功能描述:LED顯示驅(qū)動(dòng)器 w/Hold 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 |
| TC7117AIJL | 功能描述:LED顯示驅(qū)動(dòng)器 3-1/2 Digit A/D w/ Hold 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 |
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