OPA678AP BURR-BROWN [Burr-Brown Corporation], OPA678AP Datasheet - Page 11

• Manufacturer Part Number: OPA678AP
• Description: Wideband Switched-Input OPERATIONAL AMPLIFIER
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

FIGURE 8. OPA678 used as Conventional Op Amp. A wideband video amplifier with 75 input and output impedance.
FIGURE 9. Two Input Multiplexer with Gain. This circuit can be used to multiplex I & Q signals into one sampling ADC.
Input
Input 1
Input 2
R
R
R
1
1
1
75
16
15
16
15
2
1
14
2
1
14
NC
–
+
+
–
NC
–
+
+
–
3
3
NC
A
B
NC
A
B
R
13
4
R
R
13
2
4
OPA678
2
TTL
2
OPA678
12
5
12
5
11
11
–5V
C
–5V
NC
6
C
10
C
NC
6
C
10
7
9
+5V
NC
7
9
+5V
8
NC
8
(1)
(1)
(1)
(1)
1µF
Tantalum
1µF
Tantalum
1µF
Tantalum
1µF
Tantalum
11
75
Output
Output
NOTE: (1) 0.1 F, Ceramic Mono-block,
Located at Package Pin.
NOTE: (1) 0.1 F, Ceramic Mono-block,
Located at Package Pin.
VOLTAGE GAIN
VOLTAGE GAIN
V/V
+1
+2
V/V
+1
+2
+4
+8
dB
0
6
OPA678
300
100
500
R
50
R
1
1
100
300
300
350
100
500
R
R
2
2
C
pF
C
pF
8
3
1
0
8
3
C
C
®