PDF《AD5678》

0 ns min SCLK SYNC ______ t11

10 ns min LDAC ______ t12

15 ns min SCLK LDAC ______ t13

5 ns min CLR t14

0 ns min SCLK LDAC ______ t15

300 ns typ CLR

1 2

0 0 -

9 9

2 5

0 t4 t3 SCLK SYNC DIN t1 t2 t5 t6 t7 t8 DB31 t9 t10 t11 t12 t14

1 2 CLR t13 t15 VOUT DB0 LDAC1 LDAC2 AD5678 TA

25 5 θ θ ESD 4000V ESD ESD AD5678 6. C

1 LDAC ______ DAC DAC

1 2 SYNC ______ SYNC ______ SCLK DIN

32 32 SYNC ______ SYNC ______ DAC

2 3 VDD AD5678 2.7 5.5V 10?F 0.1?F GND

3 4 VOUTA DAC A to

11 13 VOUTB DAC B to

4 5 VOUTC DAC C to

10 12 VOUTD DAC D to

7 8 VREFIN/VREFOUT AD5678

1 C

9 CLR ____ CLR CLR LDAC ______ CLR CLR DAC 0V

5 6 VOUTE DAC E to

9 11 VOUTF DAC F to

6 7 VOUTG DAC G to

8 10 VOUTH DAC H to

12 14 GND

13 15 DIN AD5678

32 14

16 SCLK 50MHz

4 0

0 -

9 9

2 5

0 1

2 3

4 5

6 7

8 16

15 14

13 12

11 10

9 SYNC VDD VOUTA VOUTG VOUTE VOUTC LDAC DIN GND VOUTB VOUTH VREFIN/VREFOUT CLR VOUTF VOUTD SCLK AD5678

3 0

0 -

9 9

2 5

0 1

2 3

4 5

6 7 AD5678 VDD VOUTA VOUTC VREFIN/VREFOUT VOUTG VOUTE

14 13

12 11

10 9

8 DIN GND VOUTB VOUTH VOUTF VOUTD SCLK SYNC AD5678

10 4

6 8

0 2 C6 C10 C8 C2 C4

0 5k 10k 15k 20k 25k 30k 35k 40k 45k 50k 55k 60k 65k

1 1

0 -

9 9

2 5

0 VDD = VREF = 5V TA = 25°C 1.0 0.8

0 C1.0 C0.6 C0.8 C0.4 0.6 C0.2 0.4 0.2

0 0

0 5

6 0

0 0

0 6

0 0

0 5

5 0

0 0

0 5

0 0

0 5

4 0

0 0

0 4

0 0

0 5

3 0

0 0

0 3

0 0

0 5

2 0

0 0

0 2

0 0

0 5

1 0

0 0

0 1

0 0

0 5

0 VDD = 5V VREFOUT = 2.5V TA = 25°C

4 1

0 -

9 9

2 5

0 5. INL

16 DAC 8. DNL

16 DAC 2.5V 1.0 0.6 0.4 0.2 0.8

0 C0.4 C0.2 C0.6 C1.0 C0.8

0 10k 20k 30k 40k 50k 60k

2 1

0 -

9 9

2 5

0 VDD = VREF = 5V TA = 25°C

10 8

4 6

2 0 C4 C2 C6 C8 C10

0 0

0 5

6 0

0 0

0 6

0 0

0 5

5 0

0 0

0 5

0 0

0 5

4 0

0 0

0 4

0 0

0 5

3 0

0 0

0 3

0 0

0 5

2 0

0 0

0 2

0 0

0 5

1 0

0 0

0 1

0 0

0 5

0 5

1 0 -

9 9

2 5

0 VDD = 3V VREFOUT = 1.25V TA = 25°C 6. DNL

16 DAC 9. INL

16 DAC 1.25V

10 8

0 C10 C6 C8 C4

6 C2

4 2

0 0

0 5

6 0

0 0

0 6

0 0

0 5

5 0

0 0

0 5

0 0

0 5

4 0

0 0

0 4

0 0

0 5

3 0

0 0

0 3

0 0

0 5

2 0

0 0

0 2

0 0

0 5

1 0

0 0

0 1

0 0

0 5

0 VDD = 5V VREFOUT = 2.5V TA = 25°C

3 1

0 -

9 9

2 5

0 7. INL

16 DAC 2.5V AD5678 1.0 0.8 0.4 0.6 0.2

0 C0.4 C0.2 C0.6 C0.8 C1.0

0 0

0 5

6 0

0 0

0 6

0 0

0 5

5 0

0 0

0 5

0 0

0 5

4 0

0 0

0 4

0 0

0 5

3 0

0 0

0 3

0 0

0 5

2 0

0 0

0 2

0 0

0 5

1 0

0 0

0 1

0 0

0 5

0 6

1 0 -

9 9

2 5

0 VDD = 3V VREFOUT = 1.25V TA = 25°C 1.0 0.8

0 C1.0 C0.8 C0.6 0.6 C0.4 C0.2 0.4 0.2

0 1000

500 2000

1500 3500

3000 2500

4000 VDD = 5V VREFOUT = 2.5V TA = 25°C

7 4

0 -

9 9

2 5

0 ........