DAC1136_15 Datasheet, PDF (8/8 Pages) Analog Devices – HIGH RESOLUTION 16 AND 18 BIT DIGITAL TO ANALOG CONVERTERS

INPUT OPTIONS
The Card-Mounted Assembly contains input registers. The
inpu t code ordered by the user is set at the factory by means
of various jumpers in the logic circuitry. See ordering guide
for details.
Since the Card-Mounted Assembly contains input registers, the
card requires a strobe pulse circuit. Strobe characteristics of
input registers are:
3. Analog Devices model 44K; available only with DACl136;
recommended only for high speed or high current
applications.
4. Deglitcher IV with self-contained precision BI-FET output
amplifier (AD542K).
(
5. Deglitcher IV with model 234L output amplifier.
6. Deglitcher IV with model44K output amplifier (recommender'
with DAC1l36 only).
1..FL Strobe Pulse: One Std. series 74LS load, Leading-
Edge-Triggered. Positive pulse should remain HI for>
lOOns.
When using an external amplifier, a four terminal output con-
nection can be utilized on the Card-Mounted Assembly in
order to allow for compensation of connector contact re-
sistance.
2. The digital input code can be changed at any time up to
,..---
---
,
and including that instant when the strobe command goes
I
Rf
\
HI.
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I
3. The actual transfer of the'input code to the DAC will occur _I
J2 -If
=Is
B SENSEHI
.)
C SOURCEHI
-,
~ 3J.1Safter the strobe command; during this 3J1sthe digital
~ _{input code to the card assembly should not be changed, in}
order t9 prevent the possible coupling of logic noise into
the DAC output. At to +3J1s,the deglitcher is automatically
enabled for the following ~ 8J1s.Thus there will be a delay of
: _{~ lllls before the deglitched output starts slewing to the new}
value. Actual data transfer to the DAC automatically occurs
at to +3.1J1s.
O_{OUTPUT OPTIONS}
B ^{----------------\-7-- The Card-Mounted Assembly for the DACl136/1138 allows}
for several user-selectable output configurations:
S _{1. Internal Output Amplifier inside the DAC Module.}
O ^{2. Analog Devices model 234L; for low noise, low drift appli-}
L ^{cations (2J1V, :to.1J1V/ C).}
I
I
I
E SOURCE LO
RL *CL
I
I
I
F SENSE LO
_oJ
:L
I
J
WANALOG'
r _COMM.
COMM.
I
OUTPUT CIRCUIT WITH
I ^SINGLE
I
I
OPTIONALAMPLIFIERS
J~
Z
TIE
POINT
I_I MOUDNATCINGONCARD
\.
J ^{DIGITAL) I:}
COMM.
NOTE:
1, VOLTAGE DROP BETWEEN SOURCE LO AND SENSE LO MUST OBSERVE CURRENT
MODE COMPLIANCE LIMITS FOR RATED ACCURACY.
2. THIS CONNECTION SCHEME CANNOT BE USED WITH INTERNAL
AMPLIFIER OF THE DAC OR WITH THE AMPLIFIER
INTERNAL TO THE DEGLITCHER IV.
Figure 8. Four-Terminal Output Connections
ETE _{ORDERING GUIDE}
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WHEN ORDERING THE DAC1136 OR DAC1138, ORDER EITHER:
1. Module only:
DACl136j
DAC1136K
DAC1l38j
DAC1138K
DAC1136L
--
2. DAC1136/1138 as a Card-Mounted Assembly:
-- --
DAC MODULE
CODE CODE RESOLUTION LINEARITY
6
J
6
K
6
L
16 BITS
16 BITS
16 BITS
15BITS
16 BITS
16BITS
18 BITS
I K
18 BITS
17 BITS
18 BITS
CODE
OUTPUT
AMPLIFIER
INTERNAL
44K'
234L
DEGLITCHER IV
DEGLITCHER IV'
AND 44K
DEGLITCHER IV
I I 6
AND 234L
NOTE 1: NOT AVAILABLE FOR
DAC1136L. DAC1138J
AND DAC1138K.
CODE
INPUT
LOGIC CODE
BIN/OBIN
COMP BIN/COMP OBIN
3
2'S COMP
4
COMP 2'S COMP
SIGN PLUS MAG BIN
6
COMP SIGN MAG BIN
OUTPUT
VOLTAGE
CODEI RANGE
+10V
-^{t5V I}
t10V
DAC
VOLTAGE
CODE REFERENCE
- ^{1 INTERNAL}
I 2 I EXTERNAL
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