8 Bit Monolithic
Multiplying A Converter
0/
FEATURES
Improved
Repl~C8m~ntor Industry Standard 1408/1508
f
Improved
Settling Time: 250ns typ
ImprovedLinearity: :to.1% Accuracy GuaranteedOver
TemperatureRange(-9 Grade)
HighOutput Voltage Compliance: +O.5V to -5.0V
LoW
power Consumption: 157mW typ
HighSpeed2.Quadrant Multiplying Input: 4.0mA/lls
SlewRate
Single
Chip Monolithic Construction
Hermetic16 Pin Ceramic DIP
LoW
Cost
OBS
OLE
PRODUCT
DESCRIPTION
TheAD1408 and AD1S08 are low cost monolithic integrated
circUit -bit multiplying digital-to-analog converters, consisting
8
ofmatched bipolar switches, a precision resistor netWork and a
controlamplifier. The single chip is mounted in a hermetically
sealedceramic 16 lead dual-in-line package.
PRODUCT HIGHLIGHTS
1. Monolithic IC construction makes the AD 1408/AD1S08 an
optimum choice for applications where low cost is a major
consideration.
Advancedcircuit design and precision processing techniques
resultin significant performance advantages over older industry standard 1408/1S08 devices. The maximum linearity error
overthe specified operating temperatUre range is guaranteed
to be less than :t%LSB (-9 grade) while settling time to :t'hLSB
isreduced to 2S0ns. typo The temperature coefficient of gain
istypically 2Oppm/C and monotonicity is guaranteed over
the entire operating temperatUre range.
TheAD1408/AD1S08 is recommended for all low-cost 8-bit
DACrequirements; it is also suitable for upgrading overall
performance where older, less accurate and slower 14O8/1S08
deviceshave been designed in. The AD14O8 series is specified
for operation over the 0 to +7SoC temperature range, the
ADlS08 series for operation over the entire militaty temperatUrerange of -SSoC to +12SoC.
3. Versatile design configuration allows voltage or current outputs, variable or fixed reference inputs, CMOS or TTL
logic compatibility and a wide choice of accuracy and temperatUre range specifications.
TE
2. The AD1408/AD1S08 directly replaces other devices of
this type.
4. Accuracies within :t%LSB allow performance improvement
of older applications without redesign.
S. Faster settling time (2SOns typ) permits use in higher speed
applications.
6. Low power consumption improves stability and reduces
warm-up time.
7. The AD1408/AD1S08 multiplies in tWo quadrants when a
varying reference voltage is applied. When multiplication is
not required, a fixed reference is used.
8. The AD1408/AD1S08 is available in chip form; please consult factory for details.
9. The device is packaged in a hermetically-sealed ceramic 16
lead dual-in-line package. Processing to MIL-STD-883 level
B is available.
D/A CONVERTERS 295
