AD8137 Analog Devices, AD8137 Datasheet - Page 7

• Manufacturer Part Number: AD8137
• Description: Low Cost, Low Power 12-Bit Differential ADC Driver
• Manufacturer: Analog Devices

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 6. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
−IN
V
V
+OUT
−OUT
V
PD
+IN
OCM
S+
S−
Description
Inverting Input.
An internal feedback loop drives the output common-mode voltage to be equal to the voltage applied to
the V
Positive Power Supply Voltage.
Positive Side of the Differential Output.
Negative Side of the Differential Output.
Negative Power Supply Voltage.
Power Down.
Noninverting Input.
V
TEST
SIGNAL
SOURCE
TEST
V
TEST
SIGNAL
SOURCE
TEST
OCM
pin, provided the amplifier’s operation remains linear.
50Ω
50Ω
50Ω
50Ω
52.3Ω
52.3Ω
Figure 6. Capacitive Load Test Circuit, G = 1
52.3Ω
52.3Ω
MIDSUPPLY
+OUT
V
MIDSUPPLY
OCM
V
–IN
S+
Figure 4. Pin Configuration
Figure 5. Basic Test Circuit
1
2
3
4
R
R
Rev. B | Page 7 of 24
G
G
R
R
= 1kΩ
= 1kΩ
AD8137
V
G
G
OCM
= 1kΩ
= 1kΩ
V
OCM
R
R
AD8137
+
–
F
F
8
7
6
5
= 1kΩ
= 1kΩ
AD8137
+
–
+IN
PD
V
–OUT
R
C
C
S–
R
F
F
F
F
R
R
S
S
R
C
L, dm
L, dm
1kΩ
R
L, dm
–
+
V
O, dm
–
+
V
O, dm
AD8137