AD5674 datasheet(16/32 Pages) AD

16 / 32 page

AD5674/AD5674R/AD5679/AD5679R

Data Sheet

Rev. B | Page 16 of 32

Figure 31. AD5679/AD5679R Zero Code Error and Offset Error vs. Supply

Voltage

Figure 32. AD5674/AD5674R Zero Code Error and Offset Error vs. Supply

Voltages

Figure 33. Supply Current (IDD) Histogram with Internal Reference

Figure 34. Headroom and Footroom (ΔVOUT) vs. Load Current

Figure 35. Source and Sink Capability at VDD = 3 V

Figure 36. Source and Sink Capability at VDD = 5 V

SUPPLY VOLTAGE (V)

–1.5

–1.0

–0.5

0.5

1.0

1.5

2.7

3.2

3.7

4.2

4.7

5.2

TA = 25°C

INTERNAL REFERENCE = 2.5V

ZERO CODE ERROR

OFFSET ERROR

1.5

–1.5

–1.0

1.0

0.5

–0.5

2.7

3.2

3.7

4.2

4.7

5.2

SUPPLY VOLTAGE (V)

TA = 25°C

INTERNAL REFERENCE = 2.5V

ZERO-CODE ERROR

OFFSET ERROR

3330 3350 3370 3390 3410 3430 3450 3470 3490 3510 3530 3550

IDD FULLSCALE (µA)

VDD = 5.5V

GAIN = 2

TA = 25°C

INTERNAL REFERENCE = 2.5V

SOURCING – VDD = 5V; G = 1

SOURCING – VDD = 2.7V; G = 1

SOURCING – VDD = 5.5V; G = 2

SOURCING – VDD = 3.3V; G = 1

SINKING – VDD = 5V; G = 1

SINKING – VDD = 2.7V; G = 1

SINKING – VDD = 5.5V; G = 2

SINKING – VDD = 3.3V; G = 1

1.4

–1.4

–1.0

–0.6

–0.2

0.2

0.4

1.0

0.005

0.010

0.015

0.020

0.025

0.030

LOAD CURRENT (A)

–1.0

–0.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

–0.06

–0.04

–0.02

0.02

0.04

0.06

OUTPUT CURRENT (A)

0xFFFF

0xC000

0x8000

0x4000

0x0000

VDD = 3V

TA = 25°C

GAIN = 1

INTERNAL REFERENCE = 2.5V

REQUIRED VDD HEADROOM

TO MAINTAIN VOUTx = 2.5V

OUTPUT CURRENT (A)

–2

–1

–0.06

–0.04

–0.02

0.02

0.04

0.06

VDD = 5V

TA = 25°C

GAIN = 2

INTERNAL REFERENCE = 2.5V

0xFFFF

0xC000

0x8000

0x4000

0x0000

REQUIRED VDD HEADROOM

TO MAINTAIN VOUTx = 5V

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