PIN ASSIGNMENTS
D0 (LSB)
43
VDD3
44
D6
D8
D1
42
D3
40
D7
D9
D4
D5
D2
41
PIN FUNCTIONS
Name
V
IN
+, V
IN
–
V
REF
+, V
REF
–
33
32
31
30
29
28
27
26
25
24
23
D10
D11 (MSB)
GND
GND
GND
GND
GND
GND
GND
GND
GND
Function
Analog Inputs
External Reference Inputs
Input Clock
Common Mode Output Voltage
(1.65 V typ)
Bias Current (90
µA
typ)
Bias Current (9.5
µA
typ)
Digital Outputs (D0 = LSB)
Analog Ground
Analog Power Supply
Digital Power Supply
Digital Output Power Supply
No Connect Pins. Recommended to
connect to analog ground.
38
37
36
39
35
34
GND
CLK
N/C
VDD3
VDD2
VDD2
VDD1
VDD1
VDD1
VREF-
VREF+
1
2
3
4
5
6
7
8
9
10
11
15
14
16
17
18
19
12
N/C
13
N/C
20
21
22
CLK
V
CM
Bias 1
Bias 2
D0 – D11
GND
V
DD1
V
DD2
V
DD3
N/C
GND
GND
ORDERING INFORMATION
PART NUMBER
SPT7935SIT
TEMPERATURE RANGE
–40 to +85
°C
PACKAGE TYPE
44L TQFP
N/C
N/C
VIN-
Bias 1
Bias 2
VIN+
VCM
SPT7935
8
7/12/00
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
