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CAT5111P-00TSSOP Datasheet(PDF) 1 Page - Catalyst Semiconductor

No. de pieza CAT5111P-00TSSOP
Descripción Electrónicos  100-Tap Digitally Programmable Potentiometer (DPP) with Buffered Wiper
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Fabricante Electrónico  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT5111P-00TSSOP Datasheet(HTML) 1 Page - Catalyst Semiconductor

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CAT5111
100-Tap Digitally Programmable Potentiometer (DPP™)
with Buffered Wiper
FEATURES
s 100-position linear taper potentiometer
s Non-volatile NVRAM wiper storage;
buffered wiper
s Low power CMOS technology
s Single supply operation: 2.5V-6.0V
s Increment up/down serial interface
s Resistance values: 10k
Ω,
Ω,
Ω,
Ω,
Ω, 50kΩ
Ω and 100kΩ
s Available in PDIP, SOIC, TSSOP and MSOP packages
APPLICATIONS
s Automated product calibration
s Remote control adjustments
s Offset, gain and zero control
s Tamper-proof calibrations
s Contrast, brightness and volume controls
s Motor controls and feedback systems
s Programmable analog functions
system
values
without
effecting
the
stored
setting.
Wiper-control
of
the
CAT5111
is
accomplished with three input control pins,
CS, U/D,
and
INC. The INC input increments the wiper in the
direction which is determined by the logic state of
the U/
D input. The CS input is used to select the
device and also store the wiper position prior to
power down.
The digitally programmable potentiometer can be
used as a buffered voltage divider. For applications
where the potentiometer is used as a 2-terminal variable
resistor, please refer to the CAT5113. The buffered
wiper of the CAT5111 is not compatible with that
application. DPPs bring variability and programmability
to a broad range of applications and are used primarily
to control, regulate or adjust a characteristic or parameter
of an analog circuit.
FUNCTIONAL DIAGRAM
DESCRIPTION
The CAT5111 is a single digitally programmable
potentiometer (DPP™) designed as a electronic
replacement for mechanical potentiometers and trim
pots. Ideal for automated adjustments on high volume
production lines, they are also well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
The CAT5111 contains a 100-tap series resistor array
connected between two terminals RH and RL. An up/
down counter and decoder that are controlled by three
input pins, determines which tap is connected to the
wiper, RWB. The CAT5111 wiper is buffered by an op
amp that operates rail to rail. The wiper setting, stored in
non-volatile NVRAM memory, is not lost when the device
is powered down and is automatically recalled when
power is returned. The wiper can be adjusted to test new
Electronic Potentiometer
Implementation
RH
+
RWB
RL
CS
INC
U
/D
Control
and
Memory
VCC
R
R
R WB
H
L
Power On Recall
GND
+
-
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 2008, Rev. O
1
ALO
GEN FR
TM
LEAD FREE


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