Datasheet AD5232 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Nonvolatile Memory, Dual 256-Position Digital Potentiometer |
| 页数 / 页 | 24 / 7 — Data Sheet. AD5232. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter. Rating. … |
| 修订版 | C |
| 文件格式/大小 | PDF / 881 Kb |
| 文件语言 | 英语 |
Data Sheet. AD5232. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter. Rating. THERMAL RESISTANCE. Table 4. Thermal Resistance. Package Type
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Data Sheet AD5232 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress V rating only; functional operation of the device at these or any DD to GND −0.3 V, +7 V other conditions above those listed in the operational sections VSS to GND +0.3 V, −7 V of this specification is not implied. Exposure to absolute VDD to VSS 7 V maximum rating conditions for extended periods may affect VA, VB, VW to GND VSS − 0.3 V, VDD + 0.3 V device reliability. AX − BX, AX − WX, BX − WX Intermittent1 ±20 mA
THERMAL RESISTANCE
Continuous ±2 mA θJA is specified for the worst-case conditions, that is, a device Digital Inputs and Output Voltage to GND −0.3 V, VDD + 0.3 V soldered in a circuit board for surface-mount packages. Operating Temperature Range2 −40°C to +85°C Maximum Junction Temperature (TJ max) 150°C
Table 4. Thermal Resistance
Storage Temperature Range −65°C to +150°C
Package Type θJA θJC Unit
Lead Temperature, Soldering 16-Lead TSSOP (RU-16) 150 28 °C/W Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C Package Power Dissipation (T
ESD CAUTION
J max − TA)/θJA 1 Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and maximum applied voltage across any two of the A, B, and W terminals at a given resistance. 2 Includes programming of nonvolatile memory. Rev. C | Page 7 of 24 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions Interface Timing Characteristics Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Scratch Pad and EEMEM Programming Basic Operation EEMEM Protection Digital Input/Output Configuration Serial Data Interface Daisy-Chaining Operation Advanced Control Modes Increment and Decrement Commands Logarithmic Taper Mode Adjustment Using Additional Internal, Nonvolatile EEMEM Terminal Voltage Operating Range Detailed Potentiometer Operation Programming the Variable Resistor Rheostat Operation Programming the Potentiometer Divider Voltage Output Operation Operation from Dual Supplies Application Programming Examples Equipment Customer Start-up Sequence for a PCB Calibrated Unit with Protected Settings Flash/EEMEM Reliability Evaluation Board Outline Dimensions Ordering Guide
Data Sheet AD5232 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress V rating only; functional operation of the device at these or any DD to GND −0.3 V, +7 V other conditions above those listed in the operational sections VSS to GND +0.3 V, −7 V of this specification is not implied. Exposure to absolute VDD to VSS 7 V maximum rating conditions for extended periods may affect VA, VB, VW to GND VSS − 0.3 V, VDD + 0.3 V device reliability. AX − BX, AX − WX, BX − WX Intermittent1 ±20 mA
THERMAL RESISTANCE
Continuous ±2 mA θJA is specified for the worst-case conditions, that is, a device Digital Inputs and Output Voltage to GND −0.3 V, VDD + 0.3 V soldered in a circuit board for surface-mount packages. Operating Temperature Range2 −40°C to +85°C Maximum Junction Temperature (TJ max) 150°C
Table 4. Thermal Resistance
Storage Temperature Range −65°C to +150°C
Package Type θJA θJC Unit
Lead Temperature, Soldering 16-Lead TSSOP (RU-16) 150 28 °C/W Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C Package Power Dissipation (T
ESD CAUTION
J max − TA)/θJA 1 Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and maximum applied voltage across any two of the A, B, and W terminals at a given resistance. 2 Includes programming of nonvolatile memory. Rev. C | Page 7 of 24 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions Interface Timing Characteristics Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Scratch Pad and EEMEM Programming Basic Operation EEMEM Protection Digital Input/Output Configuration Serial Data Interface Daisy-Chaining Operation Advanced Control Modes Increment and Decrement Commands Logarithmic Taper Mode Adjustment Using Additional Internal, Nonvolatile EEMEM Terminal Voltage Operating Range Detailed Potentiometer Operation Programming the Variable Resistor Rheostat Operation Programming the Potentiometer Divider Voltage Output Operation Operation from Dual Supplies Application Programming Examples Equipment Customer Start-up Sequence for a PCB Calibrated Unit with Protected Settings Flash/EEMEM Reliability Evaluation Board Outline Dimensions Ordering Guide