DAC1408A_15 Datasheet, PDF (1/6 Pages) Analog Devices – 8-BIT MULTIPLYING

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IJJl4:-1S08Jl/1408Jl
8-BIT MULTIPLYING
D/ A CONVERTERS
._l'~ion Mol1olithics
Inc.
l'rC~ .
f~1URES
The R-2R ladder divides the reference current into eight
binarily-related components which are fed to the switches. A
.^{I I"'proved Direct Replacement for MC1508/MC1408}
I ^{0 19'1\N1onlinearity Maximum Over Temperature Range}
remainder current equal to the least significant bit is always
shunted to ground, therefore the maximum output current is
. I"'proved Settling TIme.. . . . .. . . .. .. . . . . .. 250ns, Typ _{255/256 of the reference amplifier input current. Forexample,}
: I"'Proved Power Consumption. . . . . . . . . .. 157mW, Typ _{a full-scale output current of 1.992mA would result from a}
I compatible with TTL, CMOS Logic
reference input current of 2.0mA.
I standard Supply Voltages +5.0V and -5.0V to -15V
I output Voltage Swing
+0.5V to -5.0V ^{The DAC-1508A/1408Ais useful in a wide variety of applica-}
, High-Speed Multiplying Input. . . . . . . . . . . .. .. 4.0mA/ ps
ORDERINGINFORMATIONt
- 16-PINDUAL-IN-LINPEACKAGE
RELATIVE
ACCURACY
INFS
HERMETIC
PLASTIC
MILITARY COMMERCIAL COMMERCIAL
O- :to.19%
:to.39%
:to.78%
DAC150SA-SO' DAC140SA-SO DAC140SA-SP,,/"
-
DAC140SA-70 DAC140SA-7P
-
DAC140SA-60 DAC140SA-6P
B _{:;;devices processed in total compliance to MIL-STD-SS3. add /SS3 after}
S ^{part number. Consult factory for 883 data sheet.}
tBurn-in is available on commercial and industrial temperature range parts in
O ^{cerdip, plastic dip, and TO-can packages. For ordering information, see 1988}
Data Book. Section 2.
LE _{GENERAL DESCRIPTION}
The DAC-1508A/1408A are a-bit monolithic multiplying
TE _{digital-to-analog converters consisting of a reference cur-}
tions, including waveform synthesizers, digitally program-
mable gain and attenuation blocks, CRT character genera-
tion, audio digitizing and decoding, stepping motor drives,
programmable power supplies and in building tracking and
successive approximation analog-to-digital converters.
For significantly improved speed and applications flexibility
your attention is directed to the DAC-Daa-bit high-speed
multiplying D/A converter data sheet. For D/A converters,
which include precision voltage references on the chip,
please refer to the DAC-210or the DAC-100data sheet.
PIN CONNECTIONS
'61 COMPENSATION
16-PIN DUAL-IN-LiNE
~^V)
~
~
;>-
Z
0
U
0
0
:I
~<_{, :}
0
~_,
rent amplifier, R-2R ladder, and eight high-speed current
MSBAI 15
PACKAGE
switches. For many applications, only a reference resistor
and reference voltage need be added. Improvements in
design and processing techniques provide faster settling
HERMETIC (0)
EPOXY (P)
0^~-_-
timescombined with lower power consumption while retain~
Q
ingdirect interchangeability with MC1508/1408 devices.
III
SIMPLIFIED SCHEMATIC
MS8
LSB
AI
A2
A3
A4
AS
A6
A7 AI
VREF(+! 14
VREFC-I 15
GNQ
COMPEN
11-115
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8/87, Rev. A1