PIN ASSIGNMENTS
AGND
V
RHF
1
2
28
D10
27 D9
26 D8
25
D7
PIN FUNCTIONS
Name
AGND
V
RHF
V
RHS
V
RLS
V
RLF
V
CAL
V
IN
AV
DD
DV
DD
DGND
CLK
EN
D0–9
D10
DAV
D10
Function
Analog Ground
Reference High Force
Reference High Sense
Reference Low Sense
Reference Low Force
Calibration Reference
Analog Input
Analog V
DD
Digital V
DD
Digital Ground
Input Clock ƒ
CLK
= FS (TTL)
Output Enable
Tri-State Data Output, (D0=LSB)
Tri-State Output Overrange
Data Valid Output
Digital Output Supply
Digital Output Ground
No Connect
V
RHS
3
N/C
4
V
RLS
5
V
RLF
V
IN
AGND
V
CAL
6
7
8
9
24 D6
23 D5
SOIC
22
21
OV
DD
OGND
20 D4
19
18
D3
D2
AV
DD
10
DV
DD
11
DGND 12
CLK 13
DAV 14
17 D1
16
15
D0
EN
AGND
AGND
V
RHS
31
V
RHF
V
RLS
32
OV
DD
OGND
24
23
22
D7
D6
D5
OV
DD
OGND
D4
D3
D2
D9
D8
29
25
30
26
27
28
V
RLF
V
IN
AGND
AGND
V
CAL
AV
DD
AV
DD
DV
DD
1
2
3
4
5
6
7
8
12
16
15 D0
10
DGND
14
13
11 DGND
9
N/C
TQFP
21
20
19
18
17
D1
EN
DAV
CLK
ORDERING INFORMATION
PART NUMBER
SPT7855SCS
SPT7855SCT
SPT7855SIS
SPT7855SIT
TEMPERATURE RANGE
0 to +70 °C
0 to +70 °C
–40 to +85 °C
–40 to +85 °C
PACKAGE TYPE
28L SOIC
32L TQFP
28L SOIC
32L TQFP
DV
DD
SPT7855
11
5/25/01
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
