Datasheet ADA4930-1/ADA4930-2 (Analog Devices) - 8

ADA4930-1/ADA4930-2 Data Sheet PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS S S S S 1 –V –V –V –V 1 1 1 N S1 S1 UT 16 15 14 13 +I –FB –V –V PD –O 24 23 22 21 20 19 –FB 1 12 PD –IN1 1 18 +OUT1 +IN 2 11 –OUT ADA4930-1 +FB1 2 17 VOCM1 –IN 3 TOP VIEW 10 +OUT +VS1 3 ADA4930-2 16 –VS2 (Not to Scale) TOP VIEW 15 –V +FB 4 9 V +VS1 4 S2 OCM (Not to Scale) –FB2 5 14 PD2 5 6 7 8 +IN2 6 13 –OUT2 S S S S +V +V +V +V 7 8 9 10 11 12 2 2 2 NOTES N2 B S2 S2 M T 1. EXPOSED PADDLE. THE EXPOSED PAD IS NOT –I U +F +V +V OC ELECTRICALLY CONNECTED TO THE DEVICE. IT IS
05
V
0
+O TYPICALLY SOLDERED TO GROUND OR A POWER
9-
PLANE ON THE PCB THAT IS THERMALLY CONDUCTIVE.
920
NOTES
0
1. EXPOSED PADDLE. THE EXPOSED PAD IS NOT
6
ELECTRICALLY CONNECTED TO THE DEVICE. IT IS
-00
TYPICALLY SOLDERED TO GROUND OR A POWER
9 20
PLANE ON THE PCB THAT IS THERMALLY CONDUCTIVE.
09 Figure 5. ADA4930-1 Pin Configuration Figure 6. ADA4930-2 Pin Configuration
Table 9. ADA4930-1 Pi n Function Descriptions Table 10. ADA4930-2 Pin Function Descriptions Pin No. Mnemonic Description Pin No. Mnemonic Description
1 −FB Negative Output for Feedback 1 −IN1 Negative Input Summing Node 1. Component Connection. 2 +FB1 Positive Output Feedback Pin 1. 2 +IN Positive Input Summing Node. 3, 4 +VS1 Positive Supply Voltage 1. 3 −IN Negative Input Summing Node. 5 −FB2 Negative Output Feedback Pin 2. 4 +FB Positive Output for Feedback 6 +IN2 Positive Input Summing Node 2. Component Connection. 7 −IN2 Negative Input Summing Node 2. 5 to 8 +VS Positive Supply Voltage. 8 +FB2 Positive Output Feedback Pin 2. 9 VOCM Output Common-Mode Voltage. 9, 10 +VS2 Positive Supply Voltage 2. 10 +OUT Positive Output for Load Connection. 11 VOCM2 Output Common-Mode Voltage 2. 11 −OUT Negative Output for Load Connection. 12 +OUT2 Positive Output 2. 12 PD Power-Down Pin. 13 −OUT2 Negative Output 2. 13 to 16 −VS Negative Supply Voltage. 14 PD2 Power-Down Pin 2. EPAD Exposed Paddle. The exposed pad is not 15, 16 −VS2 Negative Supply Voltage 2. electrically connected to the device. It is 17 V typically soldered to ground or a power OCM1 Output Common-Mode Voltage 1. plane on the PCB that is thermally 18 +OUT1 Positive Output 1. conductive. 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. EPAD 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. C | Page 8 of 25 Document Outline Features Applications General Description Functional Block Diagrams Revision History Specifications 3.3 V Operation 3.3 V VOCM to VO, cm Performance 3.3 V General Performance 5 V Operation 5 V VOCM to VO, cm Performance 5 V General Performance Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Operational Description Definition of Terms Differential Voltage Common-Mode Voltage Balance Theory of Operation Analyzing an Application Circuit Setting the Closed-Loop Gain Estimating the Output Noise Voltage Impact of Mismatches in the Feedback Networks Input Common-Mode Voltage Range Minimum RG Value Setting the Output Common-Mode Voltage Calculating the Input Impedance for an Application Circuit Terminating a Single-Ended Input Terminating a Single-Ended Input in a Single-Supply Applications Input Common-Mode Adjustment with DC Biased Source Input Common-Mode Adjustment with Resistors Layout, Grounding, and Bypassing High Performance ADC Driving Outline Dimensions Ordering Guide