Datasheet ADA4950-1/ADA4950-2 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | Low Power Selectable Gain Differential ADC Driver, G = 1, 2, 3 |
| Seiten / Seite | 26 / 10 — ADA4950-1/ADA4950-2. Data Sheet. VOUT, dm = 100mV p-p. VOUT, dm = 2V p-p. … |
| Revision | B |
| Dateiformat / Größe | PDF / 608 Kb |
| Dokumentensprache | Englisch |
ADA4950-1/ADA4950-2. Data Sheet. VOUT, dm = 100mV p-p. VOUT, dm = 2V p-p. d –1. N (. L = 1kΩ. AI –2. L = 200Ω. -LOO. D –4. LOS. 100. 1000
Modelllinie für dieses Datenblatt
Textversion des Dokuments
ADA4950-1/ADA4950-2 Data Sheet 2 2 1 VOUT, dm = 100mV p-p 1 VOUT, dm = 2V p-p 0 0 B) B) d –1 d –1 R N ( R L = 1kΩ L = 1kΩ N ( R AI –2 R L = 200Ω L = 200Ω AI –2 G G P P –3 –3 -LOO -LOO D –4 D –4 E E –5 LOS –5 LOS C C –6 –6 –7
013
–7
016
–8
07957-
–8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 13. Small-Signal Frequency Response at Various Loads Figure 16. Large-Signal Frequency Response at Various Loads
2 2 1 VOUT, dm = 100mV p-p 1 VOUT, dm = 2V p-p 0 0 B) B) d –1 d –1 VOCM = –2.5VDC N ( VOCM = –2.5VDC N ( VOCM = 0V AI –2 VOCM = 0V AI –2 VOCM = +2.5VDC G V G P OCM = +2.5VDC P –3 –3 -LOO -LOO D –4 D –4 E E –5 LOS –5 LOS C C –6 –6 –7
014
–7
017
–8
07957-
–8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 14. Small-Signal Frequency Response for Various VOCM Levels Figure 17. Large-Signal Frequency Response for Various VOCM Levels
4 4 VOUT, dm = 100mV p-p 2 2 VOUT, dm = 2V p-p B) B) d d N ( 0 0 N ( AI AI G G CL = 0pF P CL = 0pF P C –2 C L = 0.9pF L = 0.9pF –2 C C L = 1.8pF -LOO L = 1.8pF -LOO C D C L = 2.7pF L = 2.7pF D E E –4 –4 LOS LOS C C –6 –6
015 018 07957-
–8 –8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 15. Small-Signal Frequency Response at Various Capacitive Loads Figure 18. Large-Signal Frequency Response at Various Capacitive Loads Rev. B | Page 10 of 26 Document Outline Features Applications General Description Functional Block Diagrams Table of Contents Revision History Specifications ±5 V Operation Differential Inputs to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance 5 V Operation Differential Inputs 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 Theory of Operation Applications Information Analyzing an Application Circuit Selecting the Closed-Loop Gain Estimating the Output Noise Voltage Calculating the Input Impedance for an Application Circuit Terminating a Single-Ended Input Input Common-Mode Voltage Range Input and Output Capacitive AC Coupling Input Signal Swing Considerations Setting the Output Common-Mode Voltage Layout, Grounding, and Bypassing High Performance ADC Driving Outline Dimensions Ordering Guide
013
–7
016
–8
07957-
–8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 13. Small-Signal Frequency Response at Various Loads Figure 16. Large-Signal Frequency Response at Various Loads
2 2 1 VOUT, dm = 100mV p-p 1 VOUT, dm = 2V p-p 0 0 B) B) d –1 d –1 VOCM = –2.5VDC N ( VOCM = –2.5VDC N ( VOCM = 0V AI –2 VOCM = 0V AI –2 VOCM = +2.5VDC G V G P OCM = +2.5VDC P –3 –3 -LOO -LOO D –4 D –4 E E –5 LOS –5 LOS C C –6 –6 –7
014
–7
017
–8
07957-
–8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 14. Small-Signal Frequency Response for Various VOCM Levels Figure 17. Large-Signal Frequency Response for Various VOCM Levels
4 4 VOUT, dm = 100mV p-p 2 2 VOUT, dm = 2V p-p B) B) d d N ( 0 0 N ( AI AI G G CL = 0pF P CL = 0pF P C –2 C L = 0.9pF L = 0.9pF –2 C C L = 1.8pF -LOO L = 1.8pF -LOO C D C L = 2.7pF L = 2.7pF D E E –4 –4 LOS LOS C C –6 –6
015 018 07957-
–8 –8
07957-
1 10 100 1000 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz)
Figure 15. Small-Signal Frequency Response at Various Capacitive Loads Figure 18. Large-Signal Frequency Response at Various Capacitive Loads Rev. B | Page 10 of 26 Document Outline Features Applications General Description Functional Block Diagrams Table of Contents Revision History Specifications ±5 V Operation Differential Inputs to VOUT, dm Performance VOCM to VOUT, cm Performance General Performance 5 V Operation Differential Inputs 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 Theory of Operation Applications Information Analyzing an Application Circuit Selecting the Closed-Loop Gain Estimating the Output Noise Voltage Calculating the Input Impedance for an Application Circuit Terminating a Single-Ended Input Input Common-Mode Voltage Range Input and Output Capacitive AC Coupling Input Signal Swing Considerations Setting the Output Common-Mode Voltage Layout, Grounding, and Bypassing High Performance ADC Driving Outline Dimensions Ordering Guide