参数资料
型号: TC7129ILW713
元件分类: ADC
英文描述: 1-CH DUAL-SLOPE ADC, PQCC44
封装: PLASTIC, MO-047, LCC-44
文件页数: 6/28页
文件大小: 544K
代理商: TC7129ILW713
TC7129
DS21459D-page 14
2006 Microchip Technology Inc.
Figure 4-11:
TC7129 Functional Block Diagram.
Figure 4-12:
Integrator Block Diagram.
Low Battery
Continuity
Segment Drives
Backplane
Drives
Latch, Decode Display Multiplexer
Up/Down Results Counter
Sequence Counter/Decoder
Control Logic
Analog Section
OSC1
OSC2
OSC3
RANGE
L/H
CONT
V+
V–
DGND
COMMON
IN
HI
IN
LO
BUFF
DP1
DP2
UR/DP3
OR/DP4
REF HI
REF LO
INT OUT
INT IN
Annunciator
Drive
VDISP
TC7129
Common
REF HI
Buffer
Integrator
DE
ZI, X10
Comparator 1
200 mV
CREF
RINT
CINT
INT1
IN HI
+
+
+
REF LO
DE
IN LO
+
DE-
DE+
DE–
100 pF
V
+
Continuity
INT1, INT2
Continuity
Comparator
500 k
Ω
REST
To Display Driver
10
pF
Comparator 2
To Digital
Section
TC7129
INT
X10
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