AD8139 AD [Analog Devices], AD8139 Datasheet - Page 8
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AD8139
Manufacturer Part Number
AD8139
Description
Low Noise Rail-to-Rail Differential ADC Driver
Manufacturer
AD [Analog Devices]
Datasheet
1.AD8139.pdf
(24 pages)
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AD8139
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
−IN
V
V+
+OUT
−OUT
V−
NC
+IN
OCM
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.
No Internal Connection.
Noninverting Input.
TEST
SIGNAL
SOURCE
TEST
SIGNAL
SOURCE
V
TEST
V
TEST
50Ω
50Ω
50Ω
50Ω
60.4Ω
60.4Ω
Figure 6. Capacitive Load Test Circuit, G = +1
60.4Ω
60.4Ω
+OUT
OCM
V
OCM
–IN
V+
V
Figure 4. Pin Configuration
pin, provided the amplifier’s operation remains linear.
Figure 5. Basic Test Circuit
OCM
1
2
3
4
NC = NO CONNECT
V
Rev. A | Page 8 of 24
OCM
R
R
G
G
AD8139
= 200Ω
= 200Ω
R
R
G
G
= 200Ω
= 200Ω
R
R
AD8139
8
7
6
5
F
F
= 200Ω
= 200Ω
+IN
NC
V–
–OUT
AD8139
R
C
C
R
F
F
F
F
R
R
S
S
R
L, dm
C
L, dm
= 1kΩ
R
V
L, dm
–
O, dm
+
V
–
O, dm
+