Datasheet AD7763 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface |
| 页数 / 页 | 33 / 8 — Data Sheet. AD7763. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter. Rating. … |
| 修订版 | B |
| 文件格式/大小 | PDF / 652 Kb |
| 文件语言 | 英语 |
Data Sheet. AD7763. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter. Rating. ESD CAUTION
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Data Sheet AD7763 ABSOLUTE MAXIMUM RATINGS
T A = 25°C, unless otherwise noted.
Table 4.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress AVDD1 to GND −0.3 V to +3 V rating only; functional operation of the device at these or any (AVDD2, AVDD3, AVDD4) to GND −0.3 V to +6 V other conditions above those indicated in the operational DVDD to GND −0.3 V to +3 V section of this specification is not implied. Exposure to absolute VDRIVE to GND −0.3 V to +3 V maximum rating conditions for extended periods may affect VIN+, VIN– to GND −0.3 V to +6 V device reliability. Digital Input Voltage to GND1 −0.3 V to DVDD + 0.3 V
ESD CAUTION
MCLK to MCLKGND −0.3 V to +6 V VREF to GND2 −0.3 V to AVDD4 + 0.3 V AGND to DGND −0.3 V to +0.3 V Input Current to Any Pin ±10 mA Except Supplies3 Operating Temperature Range −40°C to +85°C Commercial Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TQFP_EP Exposed Paddle θJA Thermal Impedance 92.7°C/W θJC Thermal Impedance 5.1°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 600 V 1 Absolute maximum voltage on digital inputs is 3.0 V or DVDD + 0.3 V, whichever is lower. 2 Absolute maximum voltage on VREF input is 6.0 V or AVDD4 + 0.3 V, whichever is lower. 3 Transient currents of up to 200 mA do not cause SCR latch-up. Rev. B | Page 7 of 32 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Theory of Operation AD7763 Interface Reading Data Using the SPI Interface Synchronization Sharing the Serial Bus Writing to the AD7763 Reading Status and Other Registers Reading Data Using the I2S Interface Clocking the AD7763 Example 1 Example 2 Driving the AD7763 Using the AD7763 Bias Resistor Selection Decoupling and Layout Recommendations Supply Decoupling Additional Decoupling Reference Voltage Filtering Differential Amplifier Components Exposed Paddle Layout Considerations Programmable FIR Filter Downloading a User-Defined Filter Example Filter Download Registers Control Register 1—Address 0x001 Default Value 0x001A Control Register 2—Address 0x002 Default Value 0x009B Status Register (Read Only) Offset Register—Address 0x003 Non Bit-Mapped, Default Value 0x0000 Gain Register—Address 0x004 Non Bit-Mapped, Default Value 0xA000 Overrange Register—Address 0x005 Non Bit-Mapped, Default Value 0xCCCC Outline Dimensions Ordering Guide
Data Sheet AD7763 ABSOLUTE MAXIMUM RATINGS
T A = 25°C, unless otherwise noted.
Table 4.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress AVDD1 to GND −0.3 V to +3 V rating only; functional operation of the device at these or any (AVDD2, AVDD3, AVDD4) to GND −0.3 V to +6 V other conditions above those indicated in the operational DVDD to GND −0.3 V to +3 V section of this specification is not implied. Exposure to absolute VDRIVE to GND −0.3 V to +3 V maximum rating conditions for extended periods may affect VIN+, VIN– to GND −0.3 V to +6 V device reliability. Digital Input Voltage to GND1 −0.3 V to DVDD + 0.3 V
ESD CAUTION
MCLK to MCLKGND −0.3 V to +6 V VREF to GND2 −0.3 V to AVDD4 + 0.3 V AGND to DGND −0.3 V to +0.3 V Input Current to Any Pin ±10 mA Except Supplies3 Operating Temperature Range −40°C to +85°C Commercial Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TQFP_EP Exposed Paddle θJA Thermal Impedance 92.7°C/W θJC Thermal Impedance 5.1°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 600 V 1 Absolute maximum voltage on digital inputs is 3.0 V or DVDD + 0.3 V, whichever is lower. 2 Absolute maximum voltage on VREF input is 6.0 V or AVDD4 + 0.3 V, whichever is lower. 3 Transient currents of up to 200 mA do not cause SCR latch-up. Rev. B | Page 7 of 32 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Typical Performance Characteristics Theory of Operation AD7763 Interface Reading Data Using the SPI Interface Synchronization Sharing the Serial Bus Writing to the AD7763 Reading Status and Other Registers Reading Data Using the I2S Interface Clocking the AD7763 Example 1 Example 2 Driving the AD7763 Using the AD7763 Bias Resistor Selection Decoupling and Layout Recommendations Supply Decoupling Additional Decoupling Reference Voltage Filtering Differential Amplifier Components Exposed Paddle Layout Considerations Programmable FIR Filter Downloading a User-Defined Filter Example Filter Download Registers Control Register 1—Address 0x001 Default Value 0x001A Control Register 2—Address 0x002 Default Value 0x009B Status Register (Read Only) Offset Register—Address 0x003 Non Bit-Mapped, Default Value 0x0000 Gain Register—Address 0x004 Non Bit-Mapped, Default Value 0xA000 Overrange Register—Address 0x005 Non Bit-Mapped, Default Value 0xCCCC Outline Dimensions Ordering Guide