Datasheet

DAC
Channel
Offset
DAC
V
1
V
OFF
AGND-x
V
OUT
OFFSET
V =GAINxV (GAIN 1)xV- -
OUT 1 OFF
DAC8218
SBAS460A MAY 2009REVISED DECEMBER 2009
www.ti.com
Figure 98. Output Amplifier and Offset DAC
OUTPUT AMPLIFIERS
The output amplifiers can swing to 0.5V below the positive supply and 0.5V above the negative supply. This
condition limits how much the output can be offset for a given reference voltage. The maximum range of the
output for ±17V power and a +5.5V reference is –16.5V to +16.5V for gain = 6.
Each output amplifier is implemented with individual over-current protection. The amplifier is clamped at 8mA,
even if the output current goes over 8mA.
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