HP Car 3490A -l l, I u3o! ->---t

: F O R I N T

R E F E R E N CPEO L A R I T YL O C I C

L O W F O R + R E F I N P U T

J 6

( H R A P )

c R 8

4 . 7 5 V

A I U 3 0 a t 3 u t -4

a

,'^'-.\-/.- .

{ T O PV r E W )

\Z \Y

K - 9

IRATOPOL TO At U40t(27) 8

THRUS,/HOPTIONI8

WN NOTE2

( H I N P )

I N P U T P O L F R O M A I U 2 2 ( 8 J 7 HIGH FOR + INPUT

LOW FOR - INPUT

-t

I

w 8

-l l

---------r6

	I N V E R T I N G
	A M P L I F I E R
,	I u3o! ->---t-

io':l-.1*1' *5#3

R

- R E Fr o J r ( L )

l

I N P U T T O I I I V E R T I N GA M P F R O M J r ( 9 )

+REFSENSE rcorvJrlal

+R E F r 0 J t( J )

)

I

I

l a

I^---

sErNorE3

I

5

Figure7-22. SchematicDagram, Referenceand Ratio Circuits,A1, A13.

7431744