Dual Systems -- AOM-12 Digital to Analog Board
The AOM-12 was a 4 channel, high precision digital to
analog converter board for the IEEE-696 S-100 bus.
The board had 12-bit +/- 1/2 L.S.B accuracy over full 0 to 70°C temperature
range. Voltage outputs could be 0 to 10 volts, ±5 volts, and ±10 volts,
jumper selectable. There was short-circuit protection on all voltage
outputs. A switch-programmable port base address selection allowed the
use of multiple boards. You had the choice of straight binary or two's
complement notation and all outputscould be reset to zero volts during
The AOM-12 analog output module is a 12-bit, 4-channel digital-to-analog
(D-to-A) converter which converts digital commands from the computer into
Analog voltage outputs leave the AOM-12 through a rugged 34-pin male PCB
header located at the top of the board. The header is arranged with
alternate ground wires between all output lines to minimize crosstalk
The AOM-12 was simple to use and could be controlled using the "OUT"
instruction in either BASIC or Assembly Language. Multiple AOM boards could
be used in a system.
Specifications: Model AOM-12
Analog Outputs: Number of channels: 4.
Output Voltage Ranges: -10V to +10V, 0V to +10V, -5V to +5V.
Output Impedance (D.C.): 0.05 W typical.
Short Circuit Duration: Indefinite short-to-ground tolerated without damage.
Accuracy (0 to 70°C); Resolution: 12 bits.
Linearity Error: ±1/4 L.S.B. typical, ± 1/2 L.5.B. maximum.
Differential Linearity Error: ± 1/2 L.S.B. typical, ±3/4 L.S.B. maximum.
Guaranteed monotonic overfull 0 to 70°C temperature range.
Conversion Speed: Settling Time to ±0.01% of F.S.R. for
Change of -0V to 10V Range or -5V to 5V Range: 3msec.
typical. -10V to 10V Range: 5 m/sec. typical.
For 1 LS.B. Change: 1.5 msec. typical.
Slew Rate: 10V/msec. min., 15V/msec
Drift (0 to 70°C): Total Bipolar Drift- including gain,
offset and linearity drifts: ±20 ppm F.S.R. per °C
Temperature: Rated for operation to 130°F.
I cannot locate a manual for this board. If you have one please let me know.
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