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PDF CAT5115 Data sheet ( Hoja de datos )
| Número de pieza | CAT5115 | |
| Descripción | 32-Tap Digitally Programmable Potentiometer (DPP) | |
| Fabricantes | Catalyst Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CAT5115 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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CAT5115
32-Tap Digitally Programmable Potentiometer (DPP™)
FEATURES
32-position linear taper potentiometer
Low power CMOS technology
Single supply operation: 2.5V – 6V
Increment up/down serial interface
Resistance values: 10kΩ, 50kΩ and 100kΩ
Available in PDIP, SOIC, TSSOP, MSOP and
space saving 2 x 2.5mm TDFN packages
APPLICATIONS
Automated product calibration
Remote control adjustments
Offset, gain and zero control
Tamper-proof calibrations
Contrast, brightness and volume controls
Motor controls and feedback systems
Programmable analog functions
For Ordering Information details, see page 13.
FUNCTIONAL DIAGRAM
VCC
U/D
Control
INC and
Power-On
CS Recall
GND
RH
RW
RL
General
VDD
GND
CS
INC
U/D
DESCRIPTION
The CAT5115 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 CAT5115 contains a 32-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, RW. The wiper is always set to the mid
point, tap 15 at power up. The tap position is not
stored in memory. Wiper-control of the CAT5115 is
accomplished with three input control pins, C¯¯S, U/D¯,
and I¯N¯C¯. The I¯N¯C¯ input increments the wiper in the
direction which is determined by the logic state of the
U/D¯ input. The C¯¯S input is used to select the device.
The digitally programmable potentiometer can be used
as a three-terminal resistive divider or as a two-terminal
variable resistor. DPPs bring variability and program-
mability to a wide variety of applications including
control, parameter adjustments, and signal processing.
For a pin-compatible device that recalls a stored tap
position on power-up refer to the CAT5114 data sheet.
RH/VH
RH
RW/VW
RW
RL/VL
Detailed
RL
Electronic Potentiometer
Implementation
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-2117 Rev. H
1 page  
AC CONDITIONS OF TEST
VCC Range
Input Pulse Levels
Input Rise and Fall Times
Input Reference Levels
2.5V ≤ VCC ≤ 6.0V
0.2VCC to 0.7VCC
10ns
0.5VCC
AC OPERATING CHARACTERISTICS
VCC = +2.5V to +6.0V, VH = VCC, VL = 0V, unless otherwise specified
Symbol Parameter
Min
tCI
tDI
tID
tIL
tIH
tIC
tCPH
tIW
tCYC
tR, tF(2)
tPU(2)
C¯¯S to I¯N¯C¯ Setup
U/D¯ to I¯N¯C¯ Setup
U/D¯ to I¯N¯C¯ Hold
I¯N¯C¯ LOW Period
I¯N¯C¯ HIGH Period
I¯N¯C¯ Inactive to C¯¯S Inactive
C¯¯S Deselect Time
I¯N¯C¯ to VOUT Change
I¯N¯C¯ Cycle Time
I¯N¯C¯ Input Rise and Fall Time
Power-up to Wiper Stable
100
50
100
250
250
1
100
–
1
–
–
A.C. TIMING
www.DataSCheAet4TU5.c1om15
Typ (1)
–
–
–
–
–
–
–
1
–
–
–
Max
–
–
–
–
–
–
–
5
–
500
1
Units
ns
ns
ns
ns
ns
µs
ns
µs
µs
µs
ms
CS
tCI
INC
U /D
tCYC
tIL tIH
tDI tID
tIC
(store)
tCPH
90% 90%
10%
tF tR
tIW
RW
MI(3)
Notes:
(1) Typical values are for TA = 25ºC and nominal supply voltage.
(2) This parameter is periodically sampled and not 100% tested.
(3) MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-2117 Rev. H
5 Page 
MSOP 8-Lead 3.0 x 3.0mm (Z) (1)(2)
E E1
TOP VIEW
A A2
A1
D
e
SIDE VIEW
b
c
www.DataSCheAet4TU5.c1om15
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
L1
L2
θ
MIN
0.05
0.75
0.22
0.13
2.90
4.80
2.90
0.40
0º
NOM
0.10
0.85
3.00
4.90
3.00
0.65 BSC
0.60
0.95 REF
0.25 BSC
MAX
1.10
0.15
0.95
0.38
0.23
3.10
5.00
3.10
0.80
6º
END VIEW
DETAIL A
L
L1
DETAIL A
θ
L2
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC standard MO-187.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc. No. MD-2117 Rev. H
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CAT5115.PDF ] | |
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