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DAC8420 Datasheet(PDF) 8 Page - Analog Devices |
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DAC8420 Datasheet(HTML) 8 Page - Analog Devices |
8 / 16 page DAC8420 REV. 0 –8– Table III. Analog Output Code DAC Data Word (HEX) VOUT Note FFF VREFLO + (VREFHI – VREFLO ) 4096 × 4095 Full-Scale Output 801 VREFLO + (VREFHI – VREFLO ) 4096 × 2049 Midscale + 1 800 VREFLO + (VREFHI – VREFLO ) 4096 × 2048 Midscale 7FF VREFLO + (VREFHI – VREFLO ) 4096 × 2047 Midscale – 1 000 VREFLO + (VREFHI – VREFLO ) 4096 × 0 Zero Scale Typical Performance Characteristics 0.3 –0.3 14 0 –0.2 –4 –0.1 –6 0.2 0.1 12 10 8 6 4 2 0 –2 VVREFHI – V TA = +25°C VDD = +15V, VSS = –15V VVREFLO = –10V Figure 4. INL vs. VREFHI ( ±15 V) 0.3 –0.3 14 0 –0.2 –4 –0.1 –6 0.2 0.1 12 10 8 6 4 2 0 –2 VVREFHI – V TA = +25°C VDD = +15V, VSS = –15V VVREFLO = –10V Figure 2. Differential Linearity vs. VREFHI ( ±15 V) 0.10 –0.30 –0.20 –0.25 1.5 –0.10 –0.15 –0.05 0 0.05 3.5 3.0 2.5 2.0 V VREFHI – V T A = +25°C V DD = +5V, V SS = 0V V VREFLO = 0V Figure 3. Differential Linearity vs. VREFHI (+5 V) 0.4 –0.4 –0.2 –0.3 1.5 0 –0.1 0.1 0.2 0.3 3.5 3.0 2.5 2.0 VVREFHI – V TA = +25°C VDD = +5V, VSS = 0V VVREFLO = 0V Figure 5. INL vs. VREFHI (+5 V) 0.7 –0.5 1000 0.1 –0.3 200 –0.1 0 0.5 0.3 800 600 400 T = HOURS OF OPERATION AT +125 °C x + 3 σ x x – 3 σ CURVES NOT NORMALIZED VDD = +15V, VSS = –15V VVREFHI = +10V VVREFLO = –10V Figure 6. Full-Scale Error vs. Time Accelerated by Burn-In 1.2 0 1000 0.6 0.2 200 0.4 0 1.0 0.8 800 600 400 T = HOURS OF OPERATION AT +125 °C x + 3 σ x x – 3 σ CURVES NOT NORMALIZED VDD = +15V, VSS = –15V VVREFHI = +10V VVREFLO = –10V Figure 7. Zero-Scale Error vs. Time Accelerated by Burn-In |
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