AD5273 Analog Devices, AD5273 Datasheet
AD5273
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AD5273 Summary of contents
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... Analog Devices offers device programming software Windows application effectively replaces any external I in turn enhances users’ systems time-to-market. AD5273 is available and 100 compact SOT23 8-lead standard package and operates from –40°C to +105°C. Besides its unique OTP feature, the AD5273 lends itself well to general digital potentiometer applications due to its effective resolution, array resistance options, small footprint, and low cost ...
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... AD5273–SPECIFICATIONS ELECTRICAL CHARACTERISTICS 100 2 5 < –40°C < Parameter DC CHARACTERISTICS RHEOSTAT MODE Resolution 2 Resistor Differential NL ( 100 Resistor Nonlinearity ( 100 www.DataSheet4U.com Nominal Resistance Tolerance ...
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... 400 1.3 0.6 1.3 0.6 0.6 0.1 0 and AD5273 Max Unit kHz kHz kHz kHz % µs ms µs √ √ √ nV √ √ √ nV √ √Hz nV/√Hz √ √Hz nV/√Hz 400 kHz µs µs µ ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily late on the human body and test equipment and can discharge without detection. Although the AD5273 features proprietary ESD pro tec tion circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
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... Positive Power Supply. Specifi ed for non-OTP operation from 2 5.5 V. For OTP programming, V needs minimum Common Ground Serial Clock Input. Requires Pull-Up Resistor. Serial Data Input/Output. Requires Pull-Up Resistor Device Address Bit Resistor Terminal B Resistor Terminal A –5– SDA AD5273 ...
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... AD5273–Typical Performance Characteristics 0.5 0.3 0.1 –0 –0.3 –0 www.DataSheet4U.com CODE – Decimal TPC 1. R vs. Code vs. Supply Voltages INL 0.25 0.15 0.05 –0. –0.15 –0. CODE – Decimal TPC 2. R vs. Code vs. Supply Voltages DNL 0.10 0.06 T 0.02 –0.02 –0.06 –0. CODE – Decimal TPC 3 ...
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... TEMPERATURE – C TPC 11. Supply Current vs. Temperature ALL DIGITAL PINS TIED TOGETHER 0 2.7V DD 0.01 0.001 0.0001 INPUT LOGIC VOLTAGE – V TPC 12. Supply Current vs. Digital Input Voltage AD5273 = 10k AB 80 100 105 115 = 10k 5 6 ...
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... AD5273 500 400 300 1k 200 10k 100 0 50k –100 100k –200 –300 www.DataSheet4U.com CODE – Decimal TPC 13. Rheostat Mode Tempco –10 10k –20 –30 – CODE – Decimal TPC 14. Potentiometer Mode Tempco – ...
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... TPC 22. Digital Feedthrough vs. Time V = 5.5V DD DATA 5. GND 400kHz CLK TPC 23. Large Settling Time GND 100kHz CLK DATA 50mV 5V 200ns TPC 24. Midscale Glitch Energy AD5273 V = 10mV/DIV W SCL = 5V/DIV V = 5V/DIV W SCL = 5V/DIV V = 50mV/DIV W SCL = 5V/DIV ...
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... AD5273 OTP PROGRAMMED 5. 5. 10k www.DataSheet4U.com TPC 25. Power-Up Settling Time, after Fuses Blown SCL SDA SLAVE ADDRESS BYTE S 0 SDA BITS DEFINITIONS AND DESCRIPTIONS S = Start Condition P = Stop Condition A = Acknowledge X = Don’t Care T = OTP Programming Bit. Logic 1 programs wiper position permanently ...
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... One-Time-Programming (OTP) AD5273 has an internal power-on preset that places the wiper in the midscale during power-on. After the wiper is adjusted to the desired position, the wiper setting can be permanently pro- grammed by setting the T bit, MSB of the Instruction Byte along with the proper coding ...
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... R AB and R and not the absolute values, there 340 LOGIC Figure 4a. ESD Protection of Digital Pins A,B,W Figure 4b. ESD Protection of Resistor Terminals of AD5273 defi nes the boundary conditions for proper DD will be clamped by the GND Figure 5. Maximum Terminal Voltages Set by V fi ...
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... Figure 7 shows the software interface. Write AD5273 V The AD5273 starts at midscale after power up prior to any OTP DD SCL programming. To increment or decrement the resistance, the user SDA may simply move the scrollbar on the left. Once the desired set- ting is found, the user may press the Program Permanent button to lock the setting permanently. To write any specifi ...
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... See Figure 8. To apply the device programming software in the factories, users may lay out the AD5273 SCL and SDA pads on the PCB such that the programming signals can be communicated to and from the parallel port. Figure 9 shows a recommended AD5273 PCB layout that pogo pins can be inserted for factory programming ...
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... START BY MASTER CONTROLLING TWO DEVICES ON ONE BUS Figure 12 shows two AD5273 devices on the same serial bus. Each has a different slave address since the state of each AD0 pin is different. This allows each device to operate independently. The master device output bus line drivers are open-drain pull ...
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... Figure 15. The load current is simply the voltage across terminals B-to-W of the AD5273 divided zero-scale, the A terminal of the AD5273 will be at –2.048 V, which makes the wiper voltage clamped at ground potential. Dependent on the load, Equation 5 is therefore valid only at cer- tain codes ...
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... Figure 18. Level Shift for Different Voltage Operation Resistance Scaling www.DataSheet4U.com The AD5273 offers and 100 k nominal resistances. For users who need to optimize the resolution with an arbitrary full-range resistance, the following techniques can be the solutions. Applicable only to the voltage divider mode, by paralleling a discrete resistor as shown in Figure 19, a propor- tionately lower voltage appears at terminal A– ...
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... GND AD0 GND AD0 SCL SDA SCL SDA 0.1 F AD5170 AD5171/AD5273 Figure 23. Evaluation Board Schematic CP2 V DD JP3 4 JP1 U3A JP7 OUT1 V– AD822 JP4 JP2 –18– JP5 JP3 C6 0.1 F CP3 ...
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... AD5273 Power Supply ( Packages Comments DD 40 MSOP-10 Full AC Specs, Dual Supply, Power-On-Reset, Low Cost 40 PDIP, SOIC-8, No Rollover, MSOP-8 Power-On-Reset ...
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... AD5273 www.DataSheet4U.com OUTLINE DIMENSIONS 8-Lead Plastic Surface-Mount Package [SOT-23] (RT-8) Dimensions shown in millimeters 2.90 BSC 1.60 BSC 2.80 BSC PIN 1 0.65 BSC 1.95 1.30 BSC 1.15 0.90 0.22 1.45 MAX 0.08 0.38 0.15 MAX 0.22 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-178BA –20– 0.60 10 0.45 0 0.30 REV. 0 ...