Datasheet ADA4896-2, ADA4897-1, ADA4897-2 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | 1 nV/√Hz, Low Power Operational Amplifier |
| Páginas / Página | 28 / 2 — ADA4896-2/ADA4897-1/ADA4897-2. Data Sheet. TABLE OF CONTENTS. REVISION … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 686 Kb |
| Idioma del documento | Inglés |
ADA4896-2/ADA4897-1/ADA4897-2. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY. 4/12—Rev. A to Rev. B. 10/11—Rev. 0 to Rev. A
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ADA4896-2/ADA4897-1/ADA4897-2 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 17 Applications ... 1 Amplifier Description .. 17 General Description ... 1 Input Protection ... 17 Functional Block Diagram .. 1 Disable Operation .. 17 Revision History ... 2 DC Errors .. 18 Specifications ... 3 Bias Current Cancellation ... 18 ±5 V Supply ... 3 Noise Considerations ... 19 +5 V Supply ... 4 Capacitance Drive .. 19 +3 V Supply ... 6 Applications Information .. 20 Absolute Maximum Ratings .. 8 Typical Performance Values .. 20 Thermal Resistance .. 8 Low Noise, Gain Selectable Amplifier ... 21 Maximum Power Dissipation ... 8 Medical Ultrasound Applications .. 22 ESD Caution .. 8 Layout Considerations ... 24 Pin Configurations and Function Descriptions ... 9 Outline Dimensions ... 25 Typical Performance Characteristics ... 11 Ordering Guide .. 27
REVISION HISTORY 4/12—Rev. A to Rev. B
Change to Figure 26; Moved Figure 26.. 13 Changed 6-Lead Single SOT-23 (ADA4897-1) Thermal Changes to Figure 37 .. 15 Reistance from 306°C/W to 150°C/W ... 8 Changes to Figure 3 .. 8 Changes to Amplifier Description Section, Disable Operation Section, Figure 44, and Figure 45 ... 17
10/11—Rev. 0 to Rev. A
Added Bias Current Cancellation Section, Figure 47, Added ADA4897-2 and 10-Lead MSOP ... Universal Table 11, and Table 12 .. 18 Change to Table 1 ... 1 Changes to Table 13 ... 20 Changes to Table 3 .. 3 Changes to Low Noise, Gain Selectable Amplifier Section Changes to Table 4 .. 4 and Figure 52 ... 21 Changes to Table 5 .. 6 Deleted Figure 51 .. 22 Changes to Table 7 and Figure 3 ... 8 Changes to Power Supply Bypassing Section ... 24 Changes to Figure 4, Table 8, and Table 9 ... 9 Moved Figure 57 ... 25 Added Figure 8 and Table 10; Renumbered Sequentially ... 10 Moved Figure 58 ... 26 Changed Summary Statement for Typical Performance Added Figure 60 ... 27 Characteristics Section ... 11 Changes to Ordering Guide .. 27 Changes to Figure 18 .. 12
7/11—Revision 0: Initial Version
Change to Figure 20 ... 12 Rev. B | Page 2 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY +5 V SUPPLY +3 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION DISABLE OPERATION DC ERRORS BIAS CURRENT CANCELLATION NOISE CONSIDERATIONS CAPACITANCE DRIVE APPLICATIONS INFORMATION TYPICAL PERFORMANCE VALUES LOW NOISE, GAIN SELECTABLE AMPLIFIER MEDICAL ULTRASOUND APPLICATIONS Overview of the Ultrasound System ADA4896-2/ADA4897-1/ADA4897-2 in the Ultrasound System LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE
ADA4896-2/ADA4897-1/ADA4897-2 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 17 Applications ... 1 Amplifier Description .. 17 General Description ... 1 Input Protection ... 17 Functional Block Diagram .. 1 Disable Operation .. 17 Revision History ... 2 DC Errors .. 18 Specifications ... 3 Bias Current Cancellation ... 18 ±5 V Supply ... 3 Noise Considerations ... 19 +5 V Supply ... 4 Capacitance Drive .. 19 +3 V Supply ... 6 Applications Information .. 20 Absolute Maximum Ratings .. 8 Typical Performance Values .. 20 Thermal Resistance .. 8 Low Noise, Gain Selectable Amplifier ... 21 Maximum Power Dissipation ... 8 Medical Ultrasound Applications .. 22 ESD Caution .. 8 Layout Considerations ... 24 Pin Configurations and Function Descriptions ... 9 Outline Dimensions ... 25 Typical Performance Characteristics ... 11 Ordering Guide .. 27
REVISION HISTORY 4/12—Rev. A to Rev. B
Change to Figure 26; Moved Figure 26.. 13 Changed 6-Lead Single SOT-23 (ADA4897-1) Thermal Changes to Figure 37 .. 15 Reistance from 306°C/W to 150°C/W ... 8 Changes to Figure 3 .. 8 Changes to Amplifier Description Section, Disable Operation Section, Figure 44, and Figure 45 ... 17
10/11—Rev. 0 to Rev. A
Added Bias Current Cancellation Section, Figure 47, Added ADA4897-2 and 10-Lead MSOP ... Universal Table 11, and Table 12 .. 18 Change to Table 1 ... 1 Changes to Table 13 ... 20 Changes to Table 3 .. 3 Changes to Low Noise, Gain Selectable Amplifier Section Changes to Table 4 .. 4 and Figure 52 ... 21 Changes to Table 5 .. 6 Deleted Figure 51 .. 22 Changes to Table 7 and Figure 3 ... 8 Changes to Power Supply Bypassing Section ... 24 Changes to Figure 4, Table 8, and Table 9 ... 9 Moved Figure 57 ... 25 Added Figure 8 and Table 10; Renumbered Sequentially ... 10 Moved Figure 58 ... 26 Changed Summary Statement for Typical Performance Added Figure 60 ... 27 Characteristics Section ... 11 Changes to Ordering Guide .. 27 Changes to Figure 18 .. 12
7/11—Revision 0: Initial Version
Change to Figure 20 ... 12 Rev. B | Page 2 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY +5 V SUPPLY +3 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION DISABLE OPERATION DC ERRORS BIAS CURRENT CANCELLATION NOISE CONSIDERATIONS CAPACITANCE DRIVE APPLICATIONS INFORMATION TYPICAL PERFORMANCE VALUES LOW NOISE, GAIN SELECTABLE AMPLIFIER MEDICAL ULTRASOUND APPLICATIONS Overview of the Ultrasound System ADA4896-2/ADA4897-1/ADA4897-2 in the Ultrasound System LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE