Octal, 8-Bit Voltage Out DAC
The AD7228A contains eight 8-bit voltage-mode digital-to-analog converters, with output Buffer Amplifiers and Interface Logic on a single monolithic chip. No external trims are required to achieve full specified performance for the part.
Separate on-chip Latches are provided for each of the eight D/A Converters Data is transferred into the data Latches through a common 8-bit TTL/CMOS (5V) compatible input port. Address inputs A0, A1 and A2 determine which latch is loaded when WR goes low. The control Logic is speed compatible with most 8-bit Microprocessors
Specified performance is guaranteed for input reference voltages from +2 to 10V when using dual supplies. The part is also specified for single supply +15V operation using a reference of +10V and single supply +5V operation using a reference of +1.23V. Each output Buffer Amplifier is capable of developing +10V across a 2k(Ohm) load.
The AD7228A is fabricated on an all ion-implanted, high-speed , Linear Compatible CMOS (LC2MOS) process which has been specifically developed to integrate high-speed digital Logic circuits and precision Analog circuits on the same chip.
By Analog Devices, Inc.
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