tc835 Microchip Technology Inc., tc835 Datasheet - Page 2

• Manufacturer Part Number: tc835
• Description: Personal Computer Data Acquisition A/d Converter
• Manufacturer: Microchip Technology Inc.

TC835
Package Type
DS21478C-page 2
BUFF OUT
(MSD) D5
ANALOG
INT OUT
(LSB) B1
+INPUT
–INPUT
REF IN
C
Note 1:
AZ IN
C
COM
REF+
REF-
V+
B2
V-
2: Pins 9, 25, 40, and 56 are connected to the die substrate. The poteltial at these pins is approximately
10
11
12
13
14
1
2
3
4
5
6
7
9
8
V+. No external connections should be made.
NC = No internal connection.
28-Pin PDIP
TC835CPI
UNDERRANGE
ANALOG COM
OVERRANGE
REF IN
SUB
27
20
19
18
28
26
25
24
23
22
21
17
16
15
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
V–
UNDERRANGE
OVERRANGE
STROBE
RUN/HOLD
DIGTAL GND
POLARITY
CLOCK IN
BUSY
D1 (LSD)
D2
D3
D4
B8 (MSD)
B4
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
64
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
63
62
61 60 59 58 57 56 55 54 53 52 51 50 49
BUFF OUT
REF CAP–
REF CAP+
64-Pin MQFP
INT OUT
–INPUT
+INPUT
AZ IN
TC835CBU
NC
NC
NC
V+
10
11
1
2
3
4
5
6
7
8
9
44 43 42 41
12 13 14 15
TC835CKW
44-Pin MQFP
16
40
39 38
17 18
32
© 2007 Microchip Technology Inc.
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
37 36 35 34
19 20 21 22
NC
NC
NC
D3
D4
B3
B4
B2
SUB
B1
D5
NC
NC
NC
NC
NC
33
32
31
30
29
28
27
26
25
24
23
NC
NC
RUN/HOLD
DGND
POLARITY
CLK IN
BUSY
D1 (LSD)
D2
NC
NC