Ds4426 quad-channel, i, Decoupling, Functional diagram package information – Rainbow Electronics DS4426 User Manual
Page 14
DS4426
Quad-Channel, I
2
C-Margining IDACs with
Three Channels of Power-Supply Tracking
14
______________________________________________________________________________________
calculated to be 4.00k
Ω. The current DAC in this con-
figuration allows the output voltage to be moved linearly
from +1.6V to +2.4V using 127 settings. This corre-
sponds to a resolution of 6.3mV/step.
V
CC
Decoupling
To achieve the best results when using the DS4426,
decouple the power supply with a 0.01µF (or 0.1µF)
capacitor. Use a high-quality, ceramic, surface-mount
capacitor if possible. Surface-mount components mini-
mize lead inductance, which improves performance.
Ceramic capacitors tend to have adequate high-fre-
quency response for decoupling applications.
DS4426
SDA
V
CC
SCL
A0
A1
FS0
OUT0
I
2
C CONTROL
INTERFACE
V
CC
V
REF
REF
1.24V
INP1
FS1
OUT1
INN1
THR1
GAIN1
V
REF
/2
INP2
FS2
OUT2
INN2
THR2
GAIN2
V
REF
/2
INP3
FS3
OUT3
INN3
THR3
GND
GAIN3
V
REF
/2
Functional Diagram
Package Information
For the latest package outline information and land patterns, go
to
www.maxim-ic.com/packages
.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
28 TQFN
T2844+1