Rainbow Electronics MAX5183 User Manual
Page 9
MAX5180/MAX5183
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
_______________________________________________________________________________________
9
9.6k
I
FS
0.1
µF
10
µF
AV
DD
R
SET
I
REF
REFR
AV
DD
*
REFO
+1.2V
BANDGAP
REFERENCE
CURRENT-
SOURCE ARRAY
EXTERNAL
+1.2V
REFERENCE
*9.6k
Ω REFERENCE CURRENT-SET RESISTOR
INTERNAL TO MAX5183 ONLY. USE EXTERNAL
R
SET
FOR MAX5180.
REN
MAX5180
MAX5183
MAX6520
AGND
AGND
AGND
R
SET
Figure 3. MAX5180/MAX5183 with External Reference
R
SET
9.6k
I
FS
C
COMP
*
REFR
I
REF
**
REFO
MAX4040
+1.2V
BANDGAP
REFERENCE
CURRENT-
SOURCE ARRAY
*COMPENSATION CAPACITOR (C
COMP
≈ 100nF).
**9.6k
Ω REFERENCE CURRENT-SET RESISTOR
INTERNAL TO MAX5183 ONLY. USE EXTERNAL
R
SET
FOR MAX5180.
OPTIONAL EXTERNAL BUFFER
FOR HEAVIER LOADS
REN
MAX5180
MAX5183
I
REF
=
V
REF
R
SET
R
SET
AGND
AGND
AGND
Figure 2. Setting I
FS
with the Internal +1.2V Reference and the Control Amplifier