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Número de pieza | CAT5172 | |
Descripción | 256-position SPI Compatible Digital Potentiometer | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de CAT5172 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! CAT5172
256‐position SPI
Compatible Digital
Potentiometer (POT)
The CAT5172 is a 256-position digital linear taper potentiometer
ideally suited for replacing mechanical potentiometers and variable
resistors. Like mechanical potentiometers, the CAT5172 has a
resistive element, which can span VCC to Ground or float anywhere
between the power supply rails.
Wiper settings are controlled through an SPI-compatible digital
interface. Upon power-up, the wiper assumes a mid-span position and
may be repositioned anytime after the power is stable.
The CAT5172 operates from 2.7 V to 5.5 V, while consuming less
than 2 mA. This low operating current, combined with a small package
footprint, make the CAT5172 ideal for battery-powered portable
appliance.
Features
256-position
End-to-End Resistance: 50 kW, 100 kW
SPI Compatible Interface
Power-on Preset to Midscale
Single Supply 2.7 V to 5.5 V
Low Temperature Coefficient 100 ppm/C
Low Power, IDD 2 mA max
Wide Operating Temperature −40C to +85C
SOT−23 8-lead (2.9 mm 3 mm) Package
These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Potentiometer Replacement
Transducer Adjustment of Pressure, Temperature, Position,
Chemical, and Optical Sensors
RF Amplifier Biasing
Gain Control and Offset Adjustment
http://onsemi.com
SOT23−8
TB SUFFIX
CASE 527AK
MARKING DIAGRAM
ADYM
AEYM
11
AD = 50 kW
AE = 100 kW
Y = Production Year
Y = (Last Digit)
M = Production Month
M = (1 − 9, A, B, C)
PIN CONNECTIONS
W
VDD
GND
CLK
1
(Top View)
A
B
CS
SDI
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 1
1
Publication Order Number:
CAT5172/D
1 page CAT5172
SPI INTERFACE
Table 6. CAT5172 SERIAL DATA−WORD FORMAT
B7 B6 B5 B4 B3 B2 B1 B0
D7
MSB
27
D6 D5 D4 D3 D2 D1
D0
LSB
20
CS
CLK
SDI
VOUT
V1
V2
1 234 5 678
DATA IN
D7 D6 D5 D4 D3 D2 D1 D0
Figure 2. CAT5172 SPI Interface Timing Diagram (VA = 5 V, VB = 0 V, VW = VOUT)
SDI 1
(DATA IN) 0
1
CLK
0
tCSHO
1
CS
0
VOUT
VW
VW0
Dx
tCH
Dx
tDS
tCSS
tCL
tDH tCS1
tCSH1
tCSW
tS
1 LSB
Figure 3. SPI Interface Detailed Timing Diagram (VA = 5 V, VB = 0 V, VW = VOUT)
http://onsemi.com
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet CAT5172.PDF ] |
Número de pieza | Descripción | Fabricantes |
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