Part # AD5227 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD5227 (Rev. B)


Part Details:

64-Position Up/Down Control Digital Potentiometer AD5227 FEATURES FUNCTIONAL BLOCK DIAGRAM 64-position digital potentiometer VDD 10 k, 50 k, 100 k end-to-end terminal resistance AD5227 Simple up/down digital or manual configurable control Midscale preset CS A 6-BIT UP/DOWN Low potentiometer mode tempco = 10 ppm/°C U/D CONTROL W LOGIC Low rheostat mode tempco = 35 ppm/°C CLK B Ultralow power, IDD = 0.4 A typ and 3 A max Fast adjustment time, ts = 1 s GND Chip select enable multiple device operation POR WIPER MIDSCALE REGISTER Low operating voltage, 2.7 V to 5.5 V 04419-0-001 Automotive temperature range, -40°C to +105°C Figure 1. Compact thin SOT-23-8 (2.9 mm × 3 mm) Pb-free package APPLICATIONS Mechanical potentiometer and trimmer replacements LCD backlight, contrast, and brightness controls Portable electronics level adjustment Programmable power supply Digital trimmer replacements Automatic closed-loop control GENERAL DESCRIPTION The AD5227 is Analog Devices latest 64-step up/down control The AD5227 is available in a compact thin SOT-23-8 (TSOT-8) digital potentiometer1. This device performs the same electronic Pb-free package. The part is guaranteed to operate over the adjustment function as a 5 V potentiometer or variable resistor. automotive temperature range of -40°C to +105°C. Its simple 3-wire up/down interface allows manual switching or high speed digital control. The AD5227 presets to midscale at Users who consider EEMEM potentiometers should refer to power-up. When CS is enabled, the devices changes step at some recommendations in the Applications section. every clock pulse. The direction is determined by the state of Table 1. Truth Table the U/D pin (see Table 1). The interface is simple to activate by CS Operation1 CLK U/D


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AD5227.pdf Datasheet