AD7294 datasheet(17/48 Pages) AD

номер детали	AD7294

подробное описание детали	12-Bit Monitor and Control System with Multichannel

PDF	48 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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17 / 48 page

AD7294

Data Sheet

Rev. I | Page 16 of 47

1.5

1.0

0.5

–0.5

–1.0

–1.5

–2.0

–2.5

REFERENCE VOLTAGE (V)

MIN INL

MAX INL

TA = 25°C

VDRIVE = 5V, VREF RANGE

VDD = 5V

SINGLE-ENDED

I2C MODE 400kHz

Figure 18. ADC INL vs. Reference Voltage

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

REFERENCE VOLTAGE (V)

MIN DNL

MAX DNL

TA = 25°C

VDRIVE = 5V, VREF RANGE

VDD = 5V

SINGLE-ENDED

I2C MODE 400kHz

Figure 19. ADC DNL vs. Reference Voltage

2.0

1.0

1.5

0.5

–1.0

–2.0

–0.5

–1.5

CODE

256

512

768

1024

1280

1536

1792

2048

2304

2560

2816

3072

3328

3584

3840

4096

AVDD = DVDD = 5V

VDRIVE = 5V, INTERNAL REF,

OFFSET IN A/B/C/D = FLOATING

Figure 20. DAC INL

0.6

0.4

0.2

–0.4

–0.6

–0.2

CODE

256

512

768

1024

1280

1536

1792

2048

2304

2560

2816

3072

3328

3584

3840

4096

AVDD = DVDD = 5V

VDRIVE = 5V, INTERNAL REF,

OFFSET IN A/B/C/D = FLOATING

Figure 21. DAC DNL

–20

–15

–10

–5

TIME (s)

Figure 22. 0.1 Hz to 10 Hz DAC Output Noise (Code 800)

5.0

0.5

1.0

1.5

2.5

3.5

4.5

2.0

3.0

4.0

–5 –4 –3 –2 –1

TIME (µs)

64pF

1nF

10nF

Figure 23. Settling Time for a ¼ to ¾ Output Voltage Step

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