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AD5220BRM100-REEL7 Scheda tecnica(PDF) 4 Page - Analog Devices |
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AD5220BRM100-REEL7 Scheda tecnica(HTML) 4 Page - Analog Devices |
4 / 11 page AD5220 –4– REV. –Typical Performance Characteristics 100 75 0 0 32 128 64 96 50 25 RWB RWA CODE – Decimal Figure 4. Wiper to End Terminal Resistance vs. Code CODE – Decimal 0.5 –0.5 0 16 128 32 48 64 80 96 112 0.4 0.1 0.0 –0.2 –0.4 0.3 0.2 –0.1 –0.3 TA = +25 C VDD = +5.5V 50k VERSION 10k VERSION 100k VERSION Figure 7. R-DNL Relative Resistance Step Position Nonlinearity Error vs. Code CODE – Decimal 0.5 –0.5 0 16 128 32 48 64 80 96 112 0.4 0.1 0.0 –0.2 –0.4 0.3 0.2 –0.1 –0.3 50k VERSION 10k VERSION 100k VERSION TA = +25 C VDD = +5.5V VA = +5.5V VB = 0V Figure 10. Potentiometer Divider DNL Error vs. Code CONDUCTION CURRENT, IWB – A 6 0 0 20 120 40 60 80 100 5 4 3 2 1 VDD = 5.5V RAB = 50k 7FH 08H 01H 02H 04H 10H 20H 40H Figure 5. Resistance Linearity vs. Conduction Current CODE – Decimal 0.5 –0.5 0 16 128 32 48 64 80 96 112 0.4 0.1 0.0 –0.2 –0.4 0.3 0.2 –0.1 –0.3 TA = +25 C VDD = +5.5V 50k VERSION 10k VERSION 100k VERSION Figure 8. R-INL Resistance Non- linearity Error vs. Supply Voltage SUPPLY VOLTAGE – V 0.600 0.000 2.00 2.50 6.00 3.00 3.50 4.00 4.50 5.00 5.50 0.525 0.300 0.255 0.150 0.075 0.450 0.375 CODE = 40H RAB = 50k VA = VDD Figure 11. Potentiometer Divider INL Error vs. Supply Voltage WIPER RESISTANCE – 48 24 0 20 40 32 16 8 28 36 44 52 60 SS = 300 UNITS VDD = +2.7V TA = +25 C Figure 6. Wiper Contact Resistance CODE – Decimal 0.5 –0.5 0 16 128 32 48 64 80 96 112 0.4 0.1 0.0 –0.2 –0.4 0.3 0.2 –0.1 –0.3 TA = +25 C VDD = +5.5V VA = +5.5V VB = 0V 50k VERSION 10k VERSION 100k VERSION Figure 9. Potentiometer Divider INL Error vs. Code TEMPERATURE – C 100 80 0 –40 –15 85 10 35 60 60 40 20 100k VERSION 50k VERSION 10k VERSION Figure 12. Nominal Resistance vs. Temperature A |
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