OPA705, 2705, 4705

10

SBOS182A

FIGURE 6. OPA705 as Dual Supply Configuration-Buffered References for the DAC7644.

NC

NC

NC

NC

V

OUTA Sense

V

OUTA

V

REFL AB Sense

V

REFL AB

V

REFH AB

V

REFH AB Sense

V

OUTB Sense

V

OUTB

48

47

46

45

44

43

42

41

40

39

38

37

DAC7644

500pF

+V

1/2

OPA2705

Ref

1/2

OPA2705

500pF

+2.5V

–V

V+

V

OUT

V

OUT

Ref

–2.5V

Negative

Reference

Positive

Reference

V–