EVAL-AD5273DBZ Analog Devices, EVAL-AD5273DBZ Datasheet
EVAL-AD5273DBZ
Specifications of EVAL-AD5273DBZ
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EVAL-AD5273DBZ Summary of contents
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... An AD5273 evaluation kit and software are available. The kit includes the connector and cable that can be converted for factory programming applications. For applications that require dynamic adjustment of resistance ...
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... Programmable Current Source ................................................ 19 Gain Control Compensation .................................................... 19 Programmable Low-Pass Filter ................................................ 20 Level Shift for Different Voltages Operation .......................... 20 RDAC Circuit Simulation Model ............................................. 20 Evaluation Board ............................................................................ 21 Outline Dimensions ....................................................................... 22 Ordering Guide .......................................................................... 22 1/05—Rev Rev. E Changes to Features .......................................................................... 1 Changes to Specifications ................................................................. 3 Changes to Table 3 ............................................................................. 6 Changes to Power Supply Considerations Section ...
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A to Rev. B Changes to Features .......................................................................... 1 Changes to Applications ................................................................... 1 Changes to Specifications ................................................................. 2 Changes to Absolute Maximum Ratings ........................................ 4 Changes to Pin Function Descriptions ........................................... 5 Changes to TPC 7, TPC 8, ...
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AD5273 SPECIFICATIONS < −40°C < Table 1. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2 Resistor Differential Nonlinearity 10 kΩ, 50 kΩ, 100 ...
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Parameter 12 Power Dissipation Power Supply Sensitivity DYNAMIC CHARACTERISTICS 7, 13, 14 Bandwidth, −3 dB Total Harmonic Distortion Adjustment Settling Time Power-Up Settling Time— After Fuses Blown Resistor Noise Voltage 7, 14, 15 INTERFACE TIMING CHARACTERISTICS SCL Clock Frequency t ...
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AD5273 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V to GND GND Maximum Current Pulsed Continuous (R ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 W Wiper Terminal W. GND ≤ Positive Power Supply. Specified for non-OTP operation from 2 5.5 V. For OTP programming, ...
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AD5273 TYPICAL PERFORMANCE CHARACTERISTICS 0.5 0 0.1 –0 –0.3 –0 CODE (Decimal) Figure 3. R vs. Code vs. Supply Voltages INL 0.25 0.15 0.05 –0. ...
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SUPPLY VOLTAGE (V) Figure 9. INL vs. Supply Voltage 0.4 0.3 0.2 0.1 0 –0 SUPPLY VOLTAGE (V) Figure 10. R vs. Supply Voltage ...
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AD5273 500 400 300 1kΩ 200 10kΩ 100 0 50kΩ –100 100kΩ –200 –300 CODE (Decimal) Figure 15. Rheostat Mode Tempco (∆ 1kΩ 10kΩ –10 10kΩ 10kΩ –20 –30 –40 ...
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FREQUENCY (Hz) Figure 21. −3 dB Bandwidth – 25°C A CODE = 0x20 V = 2.5V, V ...
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AD5273 1kΩ 0.1 0. CODE (Decimal) Figure 27. I vs. Code WB_MAX SCL t 1 SDA OPEN 25° ...
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THEORY OF OPERATION The AD5273 is a one-time programmable (OTP), set-and-forget, 6-bit digital potentiometer. The AD5273 allows unlimited 6-bit adjustments prior to the OTP. OTP technology is a proven cost- effective alternative over EEMEM in one-time memory program- ming applications. ...
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AD5273 VARIABLE RESISTANCE AND VOLTAGE FOR RHEOSTAT MODE If only the W-to-B or W-to-A terminals are used as variable resistors, the unused terminal can be opened or shorted with W. This operation is called rheostat mode (see ...
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Unlike rheostat mode where the absolute tolerance is high, potentiometer mode yields an almost ratiometric function of D/63 with a relatively small error contributed by the R Therefore, the tolerance effect is almost cancelled. Although the step resistor ...
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AD5273 CONTROLLING THE AD5273 To control the AD5273, users can program the device with either computer software or with external I SOFTWARE PROGRAMMING Because of the OTP feature, users can program the AD5273 in the factory before shipping it to ...
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I C CONTROLLER PROGRAMMING Write Bit Patterns 0 SCL SDA START BY FRAME 1 SLAVE ADDRESS BYTE MASTER 0 SCL SDA START BY FRAME 1 MASTER SLAVE ...
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AD5273 4. When all data bits have been read or written, a stop con- dition is established by the master. A stop condition is defined as a low-to-high transition on the SDA line while SCL is high. In write mode, ...
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APPLICATIONS INFORMATION DAC It is common to buffer the output of the digital potentiometer as a DAC. The buffer minimizes the load dependence and delivers higher current to the load, if needed AD5273 ...
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AD5273 Depending on the op amp GBP, reducing the feedback resistor may extend the zero’s frequency far enough to overcome the problem. A better approach is to include a compensation capacitor, C2, to cancel the effect caused by C1. Optimum ...
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... AD0 C3 GND AD0 0.1µF SDA SCL SDA AD5171/AD5273 Figure 53. Evaluation Board Schematic CP2 V DD JP3 4 2 U3A 1 V+ OUT1 V– AD822 JP4 Rev Page JP5 JP3 C6 0.1µF CP3 CP4 V –IN1 REF ...
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... AD5273BRJZ100-R2 100 −40°C to +105°C AD5273BRJZ100-R7 100 −40°C to +105°C AD5273EVAL RoHS Compliant Part. 2 For the evaluation board, users should order samples because the evaluation kit comes with a socket, but does not include the parts. 3.00 2.90 2. 3.00 2.80 2.60 ...
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NOTES Rev Page AD5273 ...
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... AD5273 NOTES refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ©2002–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D03224-0-10/10(H) Rev Page ...