HA17408P
8-Bit Multiplying Digital-to-Analog Converter
Description
The HA17408P is an 8-bit monolithic D/A converter that incorporates a reference current amplifier, an R-2R
resistor ladder, and eight high-speed current switches.
Circuit designers can set the maximum output current to match the needs of their applications by setting the
reference voltage and selecting a resistor value.
The reference current is distributed to the current value for each bit by the R-2R resistor ladder, and thus the
maximum output current is 255/256 times the reference current. For example, the largest output current that
can be acquired for a reference input current of 2.0 mA is 1.992 mA.
The HA17408P can be used in a wide range of applications including CRT displays, stepping motor control,
programmable power supplies, audio equipment, and attenuators.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
A linearity of 鹵0.19% (鹵 1/2 LSB) is guaranteed.
Short centering time (250 ns typical) for rapid conversions
Low power dissipation: 157 mW typical
Compatible with TTL and CMOS logic
Standard supply voltages of V
CC
= +5.0 V, V
EE
= 鈥?.0 V and = 鈥?5.0 V
Wide output voltage range: +0.5 to 鈥?.0 V
475
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