MDS-1020_15 Datasheet, PDF (6/8 Pages) Analog Devices – 8, 10, 12 BIT VIDEO SPEED CURRENT AND VOLTAGE OUT D/A CONVERTERS

(MDS-1240, MDSL-0825, 1035, 1250 continued)
MDSL
SEE
Mse
NOTE -15V "5\'
BIT 1
I
I
I
I
I
DIGITIAL
I
INPUTS
I
I
I
I
DIA
CONVERTER
R1
soon
ZERO
OUTPUT
11V FS
2.321<11(75011 MOS.I240)
GROUNO
DIGITIAL
INPUTS
MSB
BIT 1
I
I
I
I
I
I
I
R2
300n
I
. ^DIA
CONVERTER
--
VOLTAGE
. ^OUTPUT
Vou,
R111NkOi
+1 VOLTS FS
UNIPOLAR
110V (MAXI
AT 1100mA
GROUND
I
BIT 12
LSB
REF IN
31
32
I
I
I
I
BIT 12
18 REFOUT
} ^R3
SOOI1
FS
ADJ
EXT
LSB
REF IN
-15V
+15V
NOTES,
CALIBRATION
PROCEDURE
WITH INPUT CODE 000000000000
ADJUST THE SOOI1 (RI) POTENTIOMETER
FOR -1.0000 VOLTS OUTPUT. WITH
INPUT CODE 1111 I 1111111
ADJUST
THE 10011 (RZI POTENTIOMETER
+0.99976 VOLTS OUTPUT.
FOR
Figure 70. Bipolar Current Output
OVOLTAGE OUTPUT
MDS/MDSE-81S, 1040
BS _«::~1
'.~
12
OFFSET
O ^---.:[ _{} DIGITAL}
[ ^{- LEIT INPUTS}
BIT2~
I
I
DIA
CONVERTER
BIT S o:il
BIT 10 10
ILSB)
TE _{Figure 77. Voltage Output}
,. CIRCUIT SHOWN FOR UNIPOLAR POSITIVE
OUTPUT. OUTPUT SETTLING TIME IS APPROXI.
MATELY lSOns.
2. FOR OTO +IOV OUTPUT R2- 30011, RI=Skl1.
3. R3 IS ADJUSTED FOR DESIRED OUTPUT,
RANGE IS APPROXIMATELY +5%.
4. FOR BIPOLAR OUTPUT CONNECT 50011
POTENTIOMETER
BETWEEN PINS 29 AND
28 AND UNGROUND PIN 29. R2ISSE1..1O
2.32kl1, AND VOUT (p-p) = 2 (RI IIN Wi "1,
5. CIIS APPROXIMATELY
lOpF AND MAY BE
ADJUSTED FOR BEST TRANSIENT RESPONSE,
Figure 73. Noninverting Unipolar or Bipolar Voltage Output
APPLICA nONS
-'5V,'5V
DIGITAL
INPUTS
MSB
I
I
I
I
I
I
I
I
I
I
I
LSB
MSB 3
14574
INPUT
REGISTER
..f.
1
MDS.
11 1240
i2
i3
14
15
LSii16
OUTPUT VOLTAGE
SETTLING TIME.
20no
'3
TWO
OUTPUTS
UP TO 2V
(F-p)
DGM
1040
R2
200n
9
MDS-1240, MDSL (all)
DIGITIAL
INPUTS
MSB
BIT I
I
I
I
I
I
I
I
I
I
I
I
BIT 12
LSB
26
DIA
CONVERTER
RI
VOLTAGE
. ^OUTPUT
(Vou,
-RI x 101
GROUND
REF IN
} ^R3
EXT
loon
FS
TO 1kn ADJ
NOTE,
FOR UNIPOLAR VOL TAGE OUTPUT CONNECT
JUMPER BETWEEN PINS 29 AND 30. FOR BIPOLAR
VOI.TAGE OUTPUT CONNECT A SOOI1POTENTIO.
METER BETWEEN PINS 28 AND 29 AND ADJUST FOR
ZERO OUTPUT WITH 100000000000
INPUT.
/'"
Figure 72. Inverting Unipolar or Bipolar Voltage Output
STROBE
r-L STWBE
-I~~ I-
~6'~~6f:~~;':;;C'y"MH'
NOTES ON DEGLITCHED D/A,
,. CONSULT DGM DATA SHEET FOR
DEGLITCH CIRCUIT DETAILS.
2. R' IS VARIED TO OBTAIN DESIRED
OUTPUT LEVEL FOR 0 TO'W OUT.
PUT,R'. ,oon.
Figure 74. Ultra High-Speed Deglitched D/A
Page 6 of 8
-~
D/A CONVERTERS 1975