ADA4937-1_15 Datasheet, PDF (9/29 Pages) Analog Devices – Ultralow Distortion Differential ADC Driver

ADA4937-1/ADA4937-2
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Data Sheet
–FB 1
+IN 2
–IN 3
+FB 4
PIN 1
INDICATOR
ADA4937-1
TOP VIEW
(Not to Scale)
12 PD
11 –OUT
10 +OUT
9 V_OCM
NOTES
1. EXPOSED PADDLE. THE EXPOSED PAD IS NOT
ELECTRICALLY CONNECTED TO THE DEVICE. IT IS
TYPICALLY SOLDERED TO GROUND OR A POWER
PLANE ON THE PCB THAT IS THERMALLY CONDUCTIVE.
Figure 5. ADA4937-1 Pin Configuration
–IN1 1
+FB1 2
+V_S1 3
+V_S1 4
–FB2 5
+IN2 6
PIN 1
INDICATOR
ADA4937-2
TOP VIEW
(Not to Scale)
18 +OUT1
17 V_OCM1
16 –V_S2
15 –VS2
14 PD2
13 –OUT2
NOTES
1. EXPOSED PADDLE. THE EXPOSED PAD IS NOT
ELECTRICALLY CONNECTED TO THE DEVICE. IT IS
TYPICALLY SOLDERED TO GROUND OR A POWER
PLANE ON THE PCB THAT IS THERMALLY CONDUCTIVE.
Figure 6. ADA4937-2 Pin Configuration
Table 7. ADA4937-1 Pin Function Descriptions
Pin No. Mnemonic Description
1
−FB
Negative Output for Feedback
Component Connection.
2
+IN
Positive Input Summing Node.
3
−IN
Negative Input Summing Node.
4
+FB
Positive Output for Feedback
Component Connection.
5 to 8 +VS
Positive Supply Voltage.
9
VOCM
Output Common-Mode Voltage.
10
+OUT
Positive Output for Load Connection.
11
−OUT
Negative Output for Load Connection.
12
PD
Power-Down Pin.
13 to 16 −VS
Negative Supply Voltage.
EP
Exposed Paddle. The exposed pad is not
electrically connected to the device. It is
typically soldered to ground or a power
plane on the PCB that is thermally
conductive.
Table 8. ADA4937-2 Pin Function Descriptions
Pin No. Mnemonic Description
1
−IN1
Negative Input Summing Node 1.
2
+FB1
Positive Output Feedback Pin 1.
3, 4
+VS1
Positive Supply Voltage 1.
5
−FB2
Negative Output Feedback Pin 2.
6
+IN2
Positive Input Summing Node 2.
7
−IN2
Negative Input Summing Node 2.
8
+FB2
Positive Output Feedback Pin 2.
9, 10
+VS2
Positive Supply Voltage 2.
11
VOCM2
Output Common-Mode Voltage 2.
12
+OUT2
Positive Output 2.
13
−OUT2
Negative Output 2.
14
PD2
Power-Down Pin 2.
15, 16 −VS2
Negative Supply Voltage 2.
17
VOCM1
Output Common-Mode Voltage 1.
18
+OUT1
Positive Output 1.
19
−OUT1
Negative Output 1.
20
PD1
Power-Down Pin 1.
21, 22 −VS1
Negative Supply Voltage 1.
23
−FB1
Negative Output Feedback Pin 1.
24
+IN1
Positive Input Summing Node 1.
EP
Exposed Paddle. The exposed pad is
not electrically connected to the
device. It is typically soldered to
ground or a power plane on the PCB
that is thermally conductive.
Rev. D | Page 8 of 28