PIN ASSIGNMENTS
OVDD
D0 (LSB)
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11 (MSB)
D12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
DVDD2
VRLS
VRLF
VRHF
VRHS
RGND
VIN
VINR
AGND
AVDD
DVDD1
CLK
DGND
OGND
PIN FUNCTIONS
Name
OV
DD
D0–D11
D12
OGND
DGND
CLK
DV
DD1
DV
DD2
AV
DD
AGND
V
IN
R
V
IN
RGND
V
RHS
V
RHF
V
RLS
V
RLF
Function
Digital Output Driver Supply
Data Output, Bits 0 – Bit 11
Out of Range
Digital Output Driver Ground
Digital Ground
Input Clock
Digital V
DD
Digital V
DD
; must be tied to DV
DD1
Analog V
DD
Analog Ground
Analog Input Return
Analog Input, Full Scale from V
RLS
to V
RHS
Analog Ground Shield (Junction Isolated)
Reference High Sense
Reference High Force (V
RHF
≤AV
DD
)
Reference Low Sense
Reference Low Force
28L SSOP
22
21
20
19
18
17
16
15
ORDERING INFORMATION
PART NUMBER
SPT7937SIR
TEMPERATURE RANGE
–40 to +85 °C
PACKAGE
28L SSOP
SPT7937
11
3/5/02
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
