AD7280ABSTZ datasheet(12/48 Pages) AD

12 / 48 page

AD7280A

Rev. 0 | Page 12 of 48

2668

2667

2666

2665

2664

2663

2662

2661

2660

CODE

10,000

8000

6000

4000

2000

8870

167

956

Figure 10. Histogram of Codes for 10,000 Samples,

Even Cell Voltage Channels

10,000

8000

6000

4000

2000

2952

2951

2950

2949

2948

236

2947

9072

2946

692

2945

2943 2944

2942

CODE

Figure 11. Histogram of Codes for 10,000 Samples,

Auxiliary Channels

–40

–20

100

TEMPERATURE (°C)

2.496

2.497

2.498

2.499

2.500

2.501

2.502

2.503

2.504

2.505

2.506

2.507

2.508

VDD = 8V

VDD = 10V

VDD = 16.8V

VDD = 22.5V

VDD = 29.9V

Figure 12. VREF vs. Temperature for Different Supply Voltages

2.496

2.498

2.500

2.502

2.504

2.506

2.508

–40

–20

100

TEMPERATURE (°C)

PART 1

PART 4

PART 7

PART 10

PART 2

PART 5

PART 8

PART 11

PART 3

PART 6

PART 9

PART 12

Figure 13. VREF vs. Temperature for Different Parts

–40

–20

100

TEMPERATURE (°C)

–4.5

–3.0

–1.5

1.5

3.0

4.5

6.0

7.5

VDD = 8V

VDD = 10V

VDD = 16.8V

VDD = 22.5V

VDD = 29.9V

Figure 14. Total Unadjusted Error for Even Cell Voltage Channels (Absolute

Value) vs. Temperature for Different Supply Voltages

–40

–20

100

TEMPERATURE (°C)

–4.5

–3.0

–1.5

1.5

3.0

4.5

6.0

7.5

VDD = 8V

VDD = 10V

VDD = 16.8V

VDD = 22.5V

VDD = 29.9V

Figure 15. Total Unadjusted Error for Odd Cell Voltage Channels (Absolute

Value) vs. Temperature for Different Supply Voltages

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