DAC8871_08 BURR-BROWN [Burr-Brown Corporation], DAC8871_08 Datasheet - Page 16

• Manufacturer Part Number: DAC8871_08
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

DAC8871
SBAS396 – JUNE 2007
16
REFERENCE INPUT
The DAC full-scale output voltage is determined by the reference voltage, as shown in the
section.
Reference input V
–18V to 0V. The current into the V
Figure 27
reference can sink or source the required current, a reference buffer is not required. The DAC8871 features a
reference drive (force) and sense connection that minimizes the internal errors caused by the changing
reference current and the circuit impedances.
POWER SUPPLY BYPASSING
For accurate, high-resolution performance, bypassing the supply pins with a 10 F tantalum capacitor in parallel
with a 0.1 F ceramic capacitor is recommended.
and
Figure 28
REFH
can be any voltage from 0V to +18V. Reference input V
for details. The reference input appears as a varying load to the reference. If the
V
V
Figure 40. Buffered Reference Connection
REFH
REFL
REFH
APPLICATION INFORMATION
input and out of V
OPA2277
OPA2277
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Figure 40
shows a typical reference configuration.
REFL
depends on the DAC output voltages. Refer to
V
V
V
V
REFH
REFH
REFL
REFL
DAC8871
-F
-S
-F
-S
REFL
can be any voltage from
Output Range
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