Datasheet ADA4940-2 (Analog Devices) - 9

Data Sheet ADA4940-1/ADA4940-2 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS S S S S V V V V – – – – 6 5 4 3 1 1 1 1 –IN 1 8 +IN ADA4940-1 VOCM 2 7 DISABLE –FB 1 12 DISABLE +V 6 –V +IN 2 11 –OUT S 3 S
03
–IN 3 10 +OUT
-0
+OUT 4 5 –OUT ADA4940-1 +FB 4 9 VOCM
08452
5 6 7 8 S S S S V V V V + + + +
01
NOTES
1
1. CONNECT THE EXPOSED PAD TO
452-
–VS OR GROUND.
08 Figure 4. ADA4940-1 Pin Configuration (16-Lead LFCSP) Figure 5.ADA4940-1 Pin Configuration (SOIC)
Table 11. ADA4940-1 Pin Function Descriptions (16-Lead Table 12. ADA4940-1 Pi n Function Descriptions (8-Lead LFCSP) SOIC) Pin No. Mnemonic Description Pin No. Mnemonic Description
1 −FB Negative Output for Feedback 1 −IN Negative Input Summing Node. Component Connection. 2 VOCM Output Common-Mode Voltage. 2 +IN Positive Input Summing Node. 3 +VS Positive Supply Voltage. 3 −IN Negative Input Summing Node. 4 +OUT Positive Output for Load 4 +FB Positive Output for Feedback Connection. Component Connection. 5 −OUT Negative Output for Load 5 to 8 +VS Positive Supply Voltage. Connection. 9 VOCM Output Common-Mode Voltage. 6 −VS Negative Supply Voltage. 10 +OUT Positive Output for Load 7 DISABLE Disable Pin. Connection. 8 +IN Positive Input Summing Node. 11 −OUT Negative Output for Load Connection. 12 DISABLE Disable Pin. 13 to 16 −VS Negative Supply Voltage. Exposed Connect the exposed pad to −VS or paddle (EPAD) ground. Rev. C | Page 9 of 32 Document Outline Features Applications General Description Functional Block Diagrams Revision History Specifications VS = 5 V +DIN or –DIN to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance VS = 3 V +DIN or –DIN to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Terminology Definition of Terms Differential Voltage Common-Mode Voltage (CMV) Common-Mode Offset Voltage Differential VOS, Differential CMRR, and VOCM CMRR Balance Theory of Operation Applications Information Analyzing an Application Circuit Setting the Closed-Loop Gain Estimating the Output Noise Voltage Impact of Mismatches in the Feedback Networks Calculating the Input Impedance of an Application Circuit Terminating a Single-Ended Input Input Common-Mode Voltage Range Input and Output Capacitive AC Coupling Setting the Output Common-Mode Voltage DISABLE Pin Driving a Capacitive Load Driving a High Precision ADC Layout, Grounding, and Bypassing ADA4940-1 LFCSP Example Outline Dimensions Ordering Guide