PDF《AD5678》

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1 DIN LDAC GND VOUTH VDD LDAC1 VREFIN/VREFOUT SYNC SCLK AD5678 CLR1

1 1.

25V/2.5V REF VOUTA VOUTB VOUTC VOUTD VOUTE VOUTF VOUTG

1 0

0 -

9 9

2 5

0 AD5678 REV. A 105-6891 1-16-1

03 5402

8200 532-0003 3-5-36 MT

2 06

6350 6868 REVISION ?

2005 Analog Devices, Inc. All rights reserved. AD5678 D/A DAC

4 12 DAC

4 16 DAC 2.7 5.5V AD5678

2 AD5678-1 1.25V 5ppm/ 2.5V AD5678-2 2.5V 5ppm/ 5V DAC 0V 5V 400nA DAC LDAC ______ DAC DAC DAC 0V CLR AD5678

3 50MHz SPI? QSPITM MICROWIRETM DSP to 1. DAC

12 DAC4

16 DAC4 2. 1.25V/2.5V 5ppm/ 3. 14/16 TSSOP 4. 0V 5. DAC 3V 200nA 5V 400nA typ AD5678 11/05 Rev.

0 to Rev. A Change to General Description

1 Change to Specifications

3 Replaced Figure

48 22 Change to the Power-Down Modes Section

23 10/05 Revision 0: Initial Version ______ ______ ?

1 A

1 B

1 Min Typ Max Min Typ Max

2 AD5678 DAC C/D/E/F

12 12 INL 0.5

2 0.5

1 LSB

11 0.25 0.25 LSB

12 AD5678 DAC A/B/G/H

16 16 INL

8 32

8 16 LSB

5 1

1 LSB

6 1

9 1

9 mV DAC

0 17

2 2 ?V/ 0.2

1 0.2

1 % FSR DAC

1 18

1 1 % FSR 2.5 2.5 ppm FSR ppm/

1 9

1 9 mV DC

80 80 dB VDD 10% DC

10 10 ?V RL 2k? GND VDD

5 5 ?V/mA

10 10 ?V DC

25 25 ?V RL 2k? GND VDD

10 10 ?V/mA

3 0 VDD

0 VDD V

2 2 nF RL

10 10 nF RL 2k? DC 0.5 0.5 ?

30 30 mA VDD 5V

4 4 ?s VDD 5V AD5678 AD5678 A

1 B

1 Min Typ Max Min Typ Max VDD VDD V

1 35

45 35

45 ?A VREF VDD 5.5V DAC

0 VDD

0 VDD V 14.6 14.6 k? DAC AD5678-2 2.495 2.505 2.495 2.505 V TC3

5 10

5 10 ppm/ 7.5 7.5 k?

3 3

3 ?A VINL 0.8 0.8 V VDD 5V VINH

2 2 V VDD 5V

3 3 pF VDD 4.5 5.5 4.5 5.5 V 0V VDD DAC IDD

4 VIH VDD VIL GND VDD 4.5 5.5V 1.3 1.8 1.3 1.8 mA VDD 4.5 5.5V

2 2.5

2 2.5 mA IDD

5 VDD 4.5 5.5V 0.4

1 0.4

1 ?A VIH VDD VIL GND

1 2

3 4

5 ?

2 A

1 B

1 Min Typ Max Min Typ Max

2 AD5678 DAC C/D/E/F

12 12 INL 0.5

2 0.5

1 LSB

11 1

1 LSB

12 AD5678 DAC A/B/G/H

16 16 INL

32 16 LSB

5 1

1 LSB

6 1

9 1

9 mV DAC

0 17

2 2 ?V/ 0.2

1 0.2

1 % FSR DAC

1 18

1 1 % FSR 2.5 2.5 ppm FSR ppm/

1 9

1 9 mV 1.7 1.7 ?V/ DC

80 80 dB VDD 10% DC

10 10 ?V RL 2k? GND VDD 4.5 4.5 ?V/mA

10 10 ?V DC

25 25 ?V RL 2k? GND VDD 4.5 4.5 ?V/mA

3 0 VDD

0 VDD V

2 2 nF RL

10 10 nF RL 2k? DC 0.5 0.5 ?

30 30 mA VDD 3V

4 4 ?s VDD 3V AD5678 AD5678 A

1 B

1 Min Typ Max Min Typ Max VDD VDD V

1 20

20 20

20 ?A VREF VDD 3.6V DAC

0 VDD

0 VDD V 14.6 14.6 k? DAC AD5678-1 1.247 1.253 1.247 1.253 V TC3

5 15

5 15 ppm/ 7.5 7.5 k?

3 3

3 ?A VINL 0.8 0.8 V VDD 3V VINH

2 2 V VDD 3V

3 3 pF VDD 2.7 3.6 2.7 3.6 V 0V VDD DAC IDD

4 VIH VDD VIL GND VDD 2.7 3.6V 1.2 1.5 1.2 1.5 mA VDD 2.7 3.6V 1.7 2.25 1.7 2.25 mA IDD

5 VDD 2.7 3.6V 0.2

1 0.2

1 ?A VIH VDD VIL GND

1 2

3 4

5 AC VDD 2.7 5.5V RL 2k? GND CL 200pF GND VREFIN VDD TMIN TMAX

3 1

2 Min Typ Max

3 6

10 ?s 1/4 3/4 2LSB 1.5 V/?s

4 nV-s 1LSB

34 0.1 nV-s

90 dB VREF 2V 0.1Vp-p 10Hz 20MHz 0.5 nV-s 2.5 nV-s DAC

3 nV-s

340 kHz VREF 2V 0.2Vp-p

80 dB VREF 2V 0.1Vp-p 10kHz

120 nV/ DAC 0x8400 1kHz

100 nV/ DAC 0x8400 10kHz

15 ?Vp-p 0.1 10Hz

1 2

3 40

105 25 Hz Hz AD5678 AD5678 VDD VDD

4 TMIN TMAX VDD 2.7 5.5V t1

1 20 ns min SCLK t2

8 ns min SCLK t3

8 ns min SCLK t4

13 ns min SYNC ______ SCLK t5

4 ns min t6

4 ns min t7

0 ns min SCLK SYNC ______ t8

15 ns min SYNC ______ t9

13 ns min SYNC ______ SCLK t10