參數(shù)資料
型號(hào): TC7135CBUTR
元件分類: ADC
英文描述: 1-CH DUAL-SLOPE ADC, ACCESS, PQFP64
封裝: PLASTIC, QFP-64
文件頁數(shù): 11/16頁
文件大?。?/td> 217K
代理商: TC7135CBUTR
4
TC7135
4-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTER
TC7135-10 9/27/99
TC7135
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
100k
ANALOG GND
100
k
SIGNAL
INPUT
0.1F
SET VREF = 1V
V –
REF IN
ANALOG
COMMON
INT OUT
AZ IN
BUFF OUT
CREF
–INPUT
+INPUT
D5 (MSD)
B1 (LSB)
B2
V
+
UNDERRANGE
OVERRANGE
STROBE
RUN/HOLD
DIGTAL GND
POLARITY
CLOCK IN
BUSY
(LSD) D1
D2
D4
(MSB) B8
B4
D3
+5V
1F
100k
1F
0.47
F
VREF IN
CLOCK
INPUT
120kHz
–5V
+
Figure 3A. Internal Analog Switches
Figure 1. Test Circuit
Figure 2. Digital Logic Input
Figure 3D. Reference Voltage Integration Phase
Figure 3C. Input Signal Integration Phase
Figure 3B. System Zero Phase
+
+
+
+ IN
IN
REF
ANALOG
COM
– IN
SWI
SWR
SWZ
SWI
SW1
SWZ
SWIZ
SWZ
INTEGRATOR
ANALOG
INPUT BUFFER
SW RI
+
SWRI
COMPARATOR
TO
DIGITAL
SECTION
SW RI
+
SWRI
RINT
CINT
CREF
CSZ
BUFFER
LOGIC
INPUT
V
+
+
+
+ IN
IN
REF
ANALOG
COM
– IN
SWI
SWR
SWZ
SWI
SW1
SWZ
SWIZ
SWZ
INTEGRATOR
SWITCH CLOSED
SWITCH OPEN
SW RI
+
SWRI
COMPARATOR
TO
DIGITAL
SECTION
SW RI
+
SWRI
ANALOG
INPUT BUFFER
RINT
CINT
CREF
CSZ
+
+
+
+ IN
IN
REF
ANALOG
COM
– IN
SWI
SWR
SWZ
SWI
SW1
SWZ
SWIZ
SWZ
INTEGRATOR
SWITCH CLOSED
SWITCH OPEN
SW RI
+
SWRI
COMPARATOR
TO
DIGITAL
SECTION
SW RI
+
SWRI
ANALOG
INPUT BUFFER
RINT
CINT
CREF
CSZ
+
+
+
+ IN
IN
REF
ANALOG
COM
– IN
SWI
SWR
SWZ
SWI
SW1
SWZ
SWIZ
SWZ
INTEGRATOR
SWITCH CLOSED
SWITCH OPEN
SW RI
+
SWRI
COMPARATOR
TO
DIGITAL
SECTION
SW RI
+
SWRI
ANALOG
INPUT BUFFER
RINT
CINT
CREF
CSZ
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