AD7398BR-REEL7 查看數據表（PDF） - Analog Devices

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AD7398BR-REEL7

Quad, Serial-Input 12-Bit/10-Bit DACs

Analog Devices 

AD7398/AD7399

100

90

VOUT (50mV/DIV)

10

0%

TIME – 100ns/DIV

CLOCK (5V/DIV)

TPC 11. AD7398 Digital Feedthrough

FFFH

800H

400H

200H

100H

080H

040H

020H

010H

008H

004H

002H

001H

000H

100

0

–12

–24

–36

–48

–60

–72

–84

VDD = +5V

VSS = –5V

VREF = 100mV rms

TA = 25؇C

–96

–108

1k

10k

100k

1M

FREQUENCY – Hz

TPC 14. AD7398 Multiplying Gain vs. Frequency

VDD = 5V, VSS = –5V, VREF = 5V

100

90

VOUT (2V/DIV)

10

0%

TIME – 5␮s/DIV

CS (5V/DIV)

TPC 12. AD7398 Large Signal Settling Time

5

TA = 25؇C

1. VDD = +5V, VSS = –5V, CODE = 000H, FFFH

2

4 2. VDD = +5V, VSS = –5V, CODE = 555H

4

3. VDD = +5V, VSS = 0V, CODE = 000H, FFFH

4. VDD = +5V, VSS = 0V, CODE = 555H

5. VDD = +3V, VSS = 0V, CODE = 000H, FFFH

3 6. VDD = +3V, VSS = 0V, CODE = 555H

1

6

2

3

5

1

0

1.E+03

1.E+04

1.E+05

1.E+06

1.E+07

CLOCK FREQUENCY – Hz

1.E+08

TPC 15. AD7398 Supply Current vs. Clock Frequency

VDD = 5V, VSS = –5V, VREF = 5V

100

90

VOUT (2V/DIV)

10

0%

TIME – 2␮s/DIV

CS (5V/DIV)

TPC 13. AD7398 Shutdown Recovery

2.0

1.75

AD7398

TA = 25؇C

VREF = 2.5V

؎3V

DUAL SUPPLIES

؎5V

1.5

SINGLE SUPPLY

1.25

1.0

2

3

4

5

6

POWER SUPPLY VOLTAGE – V

TPC 16. AD7398 Supply Current vs. Supply Voltage

–10–

REV. 0

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