(1 ) P e fo rm a nc e
O u tp u t voltage : 0 .9 9 9 V full-scale
N u m b er o f d igits co n v e rte d : 3 dig its
C on versio n ac cu ra cy : ± 0.2% o f full-scale (a t 2 3 °G ± 5 ° C )
(te m p e r a tu re c o e ffic ie n t 150 p p m /° C )
O u tp u t im p e d an c e : 1 k f t
C o nv ersio n sp eed : 1 m s o r less
O u tp u t fo rm at : B ind in g p o st
(2 ) O p era tio n m e th o d
F o llo w in g e x p la n atio n is given in C H EC K m o d e w ith a gate tim e o f 10
m s.
D /A c on v ersio n o f th e 3 least sig n ific an t dig its o f C H E C K d isp lay 10 .00 0
M Hz can be p e rfo rm e d w ith th e con v ersio n re so lu tio n o f 1 kH z (= 1 0 3)
b y se ttin g th e ex p o n e n t p a rt to 3.
0 [EX Pl 3 |D A C | [EX El
O ,
-------
1 kHz
D isplay
t
H O O O
v
u u u /
u U u U
8-2. D/A CONVERTER (with TR1644)
These 3 digits are D/A converted.
T o ad d an o ffse t (fo r e x a m p le , 5 0 0 ) to th is,
50 0 |E X P l 3 [D A C l [EXE]
D isp lay
I }~1
CT
}~
I
_
I L_J I
_
I I I— I — I U U
These 3 digits are D/A converted.
T h e gen era l fo rm a t o f th e ab o ve is,
O ffse t 1 EX P 1 L SD o f th e 3 dig its to be co n v e rte d |DACl jEX E 1
8 digits 1 digit
N otes: 0 Do n o t in clu d e a d ecim a l p o in t in th e o ffse t se ctio n .
(2) S p ecify th e L SD p o sitio n w ith [EX Pl.
If n o te s 0 a nd (2 )are n o t o b se rv e d , an erro r m essage E 21 o r 22
will o cc u r.
8-5
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