AD7877 datasheet(11/46 Pages) AD

11 / 46 page

AD7877

Data Sheet

Rev. E | Page 10 of 45

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0.2

0.4

0.6

0.8

500

1000

1500

2000

2500

3000

3500

4000

CODE

Figure 12. ADC DNL Plot

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VCC (V)

Y+ TO VCC

Y– TO GND

X+ TO VCC

X– TO GND

Figure 13. Switch On Resistance vs. VCC

(X+, Y+: VCC to Pin; X−, Y−: Pin to GND)

–40

–20

TEMPERATURE (°C)

Y+ TO VCC

Y– TO GND

X+ TO VCC

X– TO GND

Figure 14. Switch On Resistance vs. Temperature

(X+, Y+: VCC to Pin; X−, Y−: Pin to GND)

–50

–10

–30

TEMPERATURE (

C)

Figure 15. External Reference Current vs. Temperature

2.520

2.515

2.510

2.505

2.500

2.495

2.490

2.485

2.480

2.475

–50

–30

–10

30507090

TEMPERATURE (

C)

Figure 16. Internal VREF vs. Temperature

2.508

2.496

2.498

2.500

2.502

2.504

2.506

2.6

2.9

3.2

3.5

3.8

4.1

4.4

4.7

5.0

VCC (V)

Figure 17. Internal VREF vs. VCC

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