OP490 Просмотр технического описания (PDF) - Analog Devices

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производитель

OP490

Low Voltage Micropower Quad Operational Amplifier

Analog Devices 

VINA

3 RFBA

C1

0.1␮F

VINB

7 RFBB

C2

0.1␮F

VDD 1

VREFA 2

DAC A

1/4

DAC8408

IOUT1A 4

IOUT2A/2B 5

DAC B

1/4

DAC8408

VREFB 8

IOUT1B 6

VINC

25 RFBC

C3

0.1␮F

VIND

22 RFBD

C4

0.1␮F

VREFC 27

DAC C

1/4

DAC8408

IOUT1C 25

IOUT2C/2D 24

DAC D

1/4

DAC8408

VREFD 21

IOUT1D 23

DIGITAL

CONTROL

SIGNALS

DAC DATA BUS

PIN9(LSB) – 16(MSB)

17

A/B

18

R/W

19

DS1

20

DS2

DAC8408ET

DGND

28

R1

10M⍀

2

3

R2

10M⍀

6

5

R3

10M⍀

9

10

R4

10M⍀

13

12

+5V

4

OP490

1

1/4

OP490E

A

11

VOUTA

7

1/4

OP490E

B

VOUTB

8

1/4

OP490E

C

VOUTC

14

1/4

OP490E

D

OP490EY

+2.5V

REFERENCE

VOLTAGE

VOUTD

Figure 8. Single-Supply Micropower Quad Programmable Gain Amplifier

REV. C

–13–

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