isl23348 Intersil Corporation, isl23348 Datasheet - Page 17

• Manufacturer Part Number: isl23348
• Description: Quad, 128 Tap, Low Voltage Digitally Controlled Potentiometer Xdcp™
• Manufacturer: Intersil Corporation

Applications Information
V
V
In a case where turning V
recommended to ground the V
Grounding the V
other devices on the same bus. It is good practice to put a 1µF
cap in parallel to 0.1µF as close to the V
V
It is recommended to put a 1µF capacitor in parallel with 0.1µF
decoupling capacitor close to the V
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make
sure you have the latest Rev.
Products
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LOGIC
August 24, 2011
August 19, 2011
LOGIC
CC
Requirements and Placement
DATE
should be powered continuously during normal operation.
Requirements
ISL23348
LOGIC
FN7903.1
FN7903.0
REVISION
pin or both V
Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
LOGIC
17
LOGIC
For information regarding Intersil Corporation and its products, see
OFF is necessary, it is
CC
LOGIC
Page 1 - Replace Figure 1 with Figure 1 from ISL23448
Corrected limits in Analog Spec table for INL, DNL, FSerror, ZSerror, RINL, RDNL, Roffset.
Initial release.
pin.
http://rel.intersil.com/reports/search.php
pin of the ISL23348.
in the quality certifications found at
LOGIC
and V
For additional products, see
pin as possible.
CC
does not affect
ISL23348
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www.intersil.com/product_tree
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Wiper Transition
When stepping up through each tap in voltage divider mode,
some tap transition points can result in noticeable voltage
transients, or overshoot/undershoot, resulting from the sudden
transition from a very low impedance “make” to a much higher
impedance “break” within a short period of time (<1µs). There
are several code transitions such as 0Fh to 10h, 1Fh to 20h,
which have higher transient glitch. Note, that all switching
transients will settle well within the settling time as stated in the
datasheet. A small capacitor can be added externally to reduce
the amplitude of these voltage transients. However, that will also
reduce the useful bandwidth of the circuit, thus may not be a
good solution for some applications. It may be a good idea, in
that case, to use fast amplifiers in a signal chain for fast
recovery.
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August 24, 2011
FN7903.1