Datasheet ADA4938-1/ADA4938-2 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Ultralow Distortion Differential ADC Driver (Dual) |
| Pages / Page | 26 / 2 — ADA4938-1/ADA4938-2. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY. … |
| Revision | B |
| File Format / Size | PDF / 605 Kb |
| Document Language | English |
ADA4938-1/ADA4938-2. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY. 6/2016—Rev. A to Rev. B. 10/2009—Rev. 0 to Rev. A
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ADA4938-1/ADA4938-2 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 19 Applications ... 1 Analyzing an Application Circuit .. 19 General Description ... 1 Setting the Closed-Loop Gain .. 19 Functional Block Diagrams ... 1 Estimating the Output Noise Voltage .. 19 Revision History ... 2 The Impact of Mismatches in the Feedback Networks ... 20 Specifications ... 3 Calculating the Input Impedance of an Application Circuit ... 20 Dual-Supply Operation ... 3 Input Common-Mode Voltage Range in Single-Supply Single-Supply Operation ... 5 Applications .. 20 Absolute Maximum Ratings .. 7 Terminating a Single-Ended Input .. 21 Thermal Resistance .. 7 Setting the Output Common-Mode Voltage .. 21 ESD Caution .. 7 Layout, Grounding, and Bypassing .. 23 Pin Configurations and Function Descriptions ... 8 High Performance ADC Driving ... 24 Typical Performance Characteristics ... 9 Outline Dimensions ... 25 Test Circuts .. 17 Ordering Guide .. 25 Terminology .. 18
REVISION HISTORY
Added Settling Time Parameter, Table 3 .. 5
6/2016—Rev. A to Rev. B
Changes to Linear Output Current Parameter, Table 3 .. 5 Changed CP-16-2 to CP-16-21, CP-24-1 to CP-24-10 .. Throughout Changes to Figure 5 and Figure 6 .. 8 Changed ADA4938-x to ADA4938-1/ADA4938-2 .. Throughout Added EP Row to Table 7 and EP Row to Table 8 .. 8 Changes to Figure 1 and Figure 2 ... 1 Changes to Figure 41 .. 14 Changes to Figure 5 and Figure 6 ... 8 Added New Figure 53, Renumbered Sequentially ... 16 Updated Outline Dimensions ... 25 Changes to Table 9 .. 19 Changes to Ordering Guide .. 25 Added Exposed Pad Notation to Outline Dimensions ... 25 Changes to Ordering Guide .. 25
10/2009—Rev. 0 to Rev. A
Added Settling Time Parameter, Table 1 ... 3
11/2007—Revision 0: Initial Version
Changes to Linear Output Current Parameter, Table 1 ... 3 Rev. B | Page 2 of 26 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS REVISION HISTORY SPECIFICATIONS DUAL-SUPPLY OPERATION ±DIN to ±OUT Performance VOCM to ±OUT Performance SINGLE-SUPPLY OPERATION ±DIN to ±OUT Performance VOCM to ±OUT Performance ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Maximum Power Dissipation ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUTS TERMINOLOGY THEORY OF OPERATION ANALYZING AN APPLICATION CIRCUIT SETTING THE CLOSED-LOOP GAIN ESTIMATING THE OUTPUT NOISE VOLTAGE THE IMPACT OF MISMATCHES IN THE FEEDBACK NETWORKS CALCULATING THE INPUT IMPEDANCE OF AN APPLICATION CIRCUIT INPUT COMMON-MODE VOLTAGE RANGE IN SINGLE-SUPPLY APPLICATIONS TERMINATING A SINGLE-ENDED INPUT SETTING THE OUTPUT COMMON-MODE VOLTAGE LAYOUT, GROUNDING, AND BYPASSING HIGH PERFORMANCE ADC DRIVING OUTLINE DIMENSIONS ORDERING GUIDE
ADA4938-1/ADA4938-2 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 19 Applications ... 1 Analyzing an Application Circuit .. 19 General Description ... 1 Setting the Closed-Loop Gain .. 19 Functional Block Diagrams ... 1 Estimating the Output Noise Voltage .. 19 Revision History ... 2 The Impact of Mismatches in the Feedback Networks ... 20 Specifications ... 3 Calculating the Input Impedance of an Application Circuit ... 20 Dual-Supply Operation ... 3 Input Common-Mode Voltage Range in Single-Supply Single-Supply Operation ... 5 Applications .. 20 Absolute Maximum Ratings .. 7 Terminating a Single-Ended Input .. 21 Thermal Resistance .. 7 Setting the Output Common-Mode Voltage .. 21 ESD Caution .. 7 Layout, Grounding, and Bypassing .. 23 Pin Configurations and Function Descriptions ... 8 High Performance ADC Driving ... 24 Typical Performance Characteristics ... 9 Outline Dimensions ... 25 Test Circuts .. 17 Ordering Guide .. 25 Terminology .. 18
REVISION HISTORY
Added Settling Time Parameter, Table 3 .. 5
6/2016—Rev. A to Rev. B
Changes to Linear Output Current Parameter, Table 3 .. 5 Changed CP-16-2 to CP-16-21, CP-24-1 to CP-24-10 .. Throughout Changes to Figure 5 and Figure 6 .. 8 Changed ADA4938-x to ADA4938-1/ADA4938-2 .. Throughout Added EP Row to Table 7 and EP Row to Table 8 .. 8 Changes to Figure 1 and Figure 2 ... 1 Changes to Figure 41 .. 14 Changes to Figure 5 and Figure 6 ... 8 Added New Figure 53, Renumbered Sequentially ... 16 Updated Outline Dimensions ... 25 Changes to Table 9 .. 19 Changes to Ordering Guide .. 25 Added Exposed Pad Notation to Outline Dimensions ... 25 Changes to Ordering Guide .. 25
10/2009—Rev. 0 to Rev. A
Added Settling Time Parameter, Table 1 ... 3
11/2007—Revision 0: Initial Version
Changes to Linear Output Current Parameter, Table 1 ... 3 Rev. B | Page 2 of 26 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS REVISION HISTORY SPECIFICATIONS DUAL-SUPPLY OPERATION ±DIN to ±OUT Performance VOCM to ±OUT Performance SINGLE-SUPPLY OPERATION ±DIN to ±OUT Performance VOCM to ±OUT Performance ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Maximum Power Dissipation ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUTS TERMINOLOGY THEORY OF OPERATION ANALYZING AN APPLICATION CIRCUIT SETTING THE CLOSED-LOOP GAIN ESTIMATING THE OUTPUT NOISE VOLTAGE THE IMPACT OF MISMATCHES IN THE FEEDBACK NETWORKS CALCULATING THE INPUT IMPEDANCE OF AN APPLICATION CIRCUIT INPUT COMMON-MODE VOLTAGE RANGE IN SINGLE-SUPPLY APPLICATIONS TERMINATING A SINGLE-ENDED INPUT SETTING THE OUTPUT COMMON-MODE VOLTAGE LAYOUT, GROUNDING, AND BYPASSING HIGH PERFORMANCE ADC DRIVING OUTLINE DIMENSIONS ORDERING GUIDE
