AD5222 Analog Devices, AD5222 Datasheet
AD5222
Available stocks
Related parts for AD5222
AD5222 Summary of contents
Page 1
... The AD5222 contains two fixed resistors with wiper contacts that tap the fixed resistor value at a point determined by a digitally controlled up/down counter. The resistance between the wiper ...
Page 2
... AD5222–SPECIFICATIONS Parameter DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs) 2 Resistor Differential NL 2 Resistor Nonlinearity Nominal Resistor Tolerance Resistance Temperature Coefficient 3 Wiper Resistance Nominal Resistance Match DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE (Specifications Apply to All VRs) Resolution 4 Integral Nonlinearity 4 Differential Nonlinearity Voltage Divider Temperature Coefficient ...
Page 3
... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD5222 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
Page 4
... AD5222–Typical Performance Characteristics 100 CODE – Decimal Figure 3. Wiper-To-End Terminal Resistance vs. Code 4 3 2.5 2 1 CURRENT – Figure 4. Resistance Linearity vs. Conduction Current 180 150 120 90 60 ...
Page 5
... SEE TEST CIRCUIT FIGURE 25 SEE TEST CIRCUIT FIGURE 26 10 100 1k 10k FREQUENCY – Hz 100k 1M SEE TEST CIRUIT 2.7V DD 50k V = –2. 50mV rms DATA = OP42 B 10 100 1k 10k 100k FREQUENCY – Hz AD5222 10k 50k 1M AB 100k 10k 1M ...
Page 6
... AD5222 1200 A – 5.5V DD CODE = 15 H 1000 B – 3.3V DD CODE = – 5.5V DD CODE = 3F 800 H D – 3.3V DD CODE = 3F H 600 400 200 0 10k 100k 1 FREQUENCY – Hz Figure 15 Supply Current vs. Clock Frequency DD SS 100 ...
Page 7
... V ]/I MS1 MS2 W W ± 10 ––––– Figure 28. Incremental ON Resistance Test Circuit –7– Parametric Test Circuits–AD5222 A B DUT + OP279 V OUT + –5V +5V OP279 V W OUT V IN –5V DUT B A ...
Page 8
... Appropriate debounce circuitry is required when push-button switches are used to control the count sequence and direction of count. The exact timing require- ments are shown in Figure 2. The AD5222 powers centered wiper position, exhibiting nearly equal resistances of R and R ...
Page 9
... /128, which becomes the case of the 10 k AD5222BR10 product. Care should be taken to limit the current flow between W and B in the direct contact state (R code = maximum value avoid degradation or possible destruction of the internal switch contact ...
Page 10
... AD5222 14-Lead Narrow Body SOIC (R-14) 0.3444 (8.75) 0.3367 (8.55 0.2440 (6.20) 0.1574 (4.00) 0.1497 (3.80) 0.2284 (5.80 PIN 1 0.0688 (1.75) 0.050 (1.27) 0.0532 (1.35) BSC 0.0098 (0.25) 0.0192 (0.49) SEATING 0.0099 (0.25) PLANE 0.0040 (0.10) 0.0138 (0.35) 0.0075 (0.19) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 0.201 (5.10) 0.193 (4.90) 14 0.0196 (0.50) 45 0.0099 (0.25) 1 PIN 1 8 0.006 (0.15) 0 0.0500 (1.27) 0.002 (0.05) ...