
SPT
7
11/12/98
SPT9110
Figure 3 - Typical Interface Circuit (Single-Ended Operational Design)
N/C
N/C
5
6
7
8
S
A+5V
1
2
3
4
Q0
GND
DO
VCC
M
D1
Q1
GND(Ref)
REF OUT
REF IN
GND(THA)
GND(SUB)
GND(CAP)
Analog IN
GND(THA)
GND(THA)
GND(THA)
GND(THA)
AVCC(Ref)
GND(SUB)
GND(INV)
CLK
AVCC(THA)
OUT+
OUT-
INV A
INV B
AVCC(INV)
AVCC(ESD)
AVCC(THA)
AVCC(THA)
AVCC(THA)
AVCC(THA)
AVCC(INV)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
10
300
50
50
1 μF
0.01 μF
A+5V
0.1 μF
TTL Clock
(Sample Clock, up to 100 MHz)
A+5V
A+5V
OUT
4.7 μF
0.01 μF
0.01 μF
A+5V
0.01 μF
4.7 μF
0.1 μF
(+2.5 V)
XUF (Dependent on Frequency)
50
-
+
OP191
2
3
7
4
6
0.01 μF
(Optional Level-Shift Circuit)
+
+
+
4.7 μF
+
22
(TTL to PECL
Translator)
22
Analog In
CLK
Q0
Q1
Notes:
1. Input signal is typically at a +2.5 V offset. The optional level-shift circuit may be eliminated if
driving from a source that already provides for this offset.
2. The device may be operated from -5 V supply on GND pins and 0 V on AVCC pins. All input and
output pins will be shifted by -5 V. The use of an ECL level may be used to drive the clock inputs.
3. VCC (ESD) is the high voltage for the ESD protection diodes and must be connected in all
applications. NOTE: It should be tied to VCC (THA), not to VCC (INV).
N/C
N/C
N/C
N/C
0.01 μF
Figure 4 - Typical Interface Circuit (Differential Operational Design)
5
6
7
8
S
A+5V
1
2
3
4
Q0
GND
DO
VCC
M
D1
Q1
GND(Ref)
REF OUT
REF IN
GND(THA)
GND(SUB)
GND(CAP)
Analog IN
GND(THA)
GND(THA)
GND(THA)
GND(THA)
AVCC(Ref)
GND(SUB)
GND(INV)
CLK
AVCC(THA)
OUT+
OUT-
INV A
INV B
AVCC(INV)
AVCC(ESD)
AVCC(THA)
AVCC(THA)
AVCC(THA)
AVCC(THA)
AVCC(INV)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
10
300
50
50
1 μF
0.01 μF
A+5V
0.1 μF
TTL Clock
(Sample Clock, up to 100 MHz)
A+5V
A+5V
OUT+
OUT-
4.7 μF
0.01 μF
4.7 μF
0.01 μF
A+5V
0.01 μF
4.7 μF
4.7 μF
0.01 μF
0.1 μF
(+2.5 V)
XUF (Dependent on Frequency)
50
-
+
OP191
2
3
7
4
6
0.01 μF
(Optional Level-Shift Circuit)
(Differential Output)
+
+
+
+
+
22
(TTL to PECL
Translator)
22
22
Analog In
CLK
Q0
Q1
Notes:
1. Input signal is typically at a +2.5 V offset. The optional level-shift circuit may be eliminated if
driving from a source that already provides for this offset.
2. The device may be operated from -5 V supply on GND pins and 0 V on AVCC pins. All input and
output pins will be shifted by -5 V. The use of an ECL level may be used to drive the clock inputs.
3. VCC (ESD) is the high voltage for the ESD protection diodes and must be connected in all
applications. NOTE: It should be tied to VCC (THA), not to VCC (INV).