Microchip MCP4021 Bruksanvisning
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2006-2017 Microchip Technology Inc.DS20001945F-page 1
MCP4021/2/3/4
Features
•Nonvolatile Digital Potentiometer in SOT-23,
SOIC, MSOP and DFN Packages
•64 Taps: 63 Resistors with Taps to Terminal A and
Terminal B
•Simple Up/Down (U/D) Protocol
•Power-on Recall of Saved Wiper Setting
•Resistance Values: 2.1k, 5 k, 10 k or 50 k
•Low Tempco:
-Absolute (Rheostat): 50ppm (0°C to 70°C Typ.)
-Ratiometric (Potentiometer): 10 ppm (Typ.)
•Low Wiper Resistance: 75 (Typ.)
•WiperLock™ Technology to Secure the wiper
setting in nonvolatile memory (EEPROM)
•High-Voltage Tolerant Digital Inputs: up to 12.5V
•Low-Power Operation: 1µA Max Static Current
•Wide Operating Voltage: 2.7V to 5.5V
•Extended Temperature Range: –40°C to +125°C
•Wide Bandwidth (-3 dB) Operation:
-4 MHz (Typ.) for 2.1 k Device
Description
The MCP4021/2/3/4 devices are nonvolatile, 6-bit
digital potentiometers that can be configured as either a
potentiometer or rheostat. The wiper setting is
controlled through a simple Up/Down (U/D) serial
interface.
These device’s implement Microchip’s WiperLock
technology, which allows application-specific
calibration settings to be secured in the EEPROM
without requiring the use of an additional write-protect
pin.
Package Types
Block Diagram
Device Features
.
A
W
B
MCP4021
SOIC, MSOP, DFN
MCP4022
SOT-23-6
MCP4023
SOT-23-6
MCP4024
SOT-23-5
RheostatPotentiometer
Potentiometer Rheostat
A
VSS
W
1
2
3
4
8
7
6
5
VDD U/D
NC
B
CS
4
1
2
3
5W
CS
VDD
VSS
U/D
4
1
2
3
6A
CS
VDD
VSS
U/D
5W
AW
B
4
1
2
3
6A
CS
VDD
VSS
U/D
5W
A
W
W
A
B B
V
DD
VSS
U/D
W
B
(Resistor Array)
Wiper Register
CS
WiperLock
EEPROM and
A
2-Wire
Interface
and
Control
Logic
Power-Up
and
Brown-Out
Control
Technology
Device Wiper
Configuration
Memory
Type
Resistance (typical)# of
Steps
VDD
Operating
Range
Control
Interface
WiperLock
Technology
Options (k)Wiper ()
MCP4021Potentiometer (1) EE2.1, 5.0, 10.0, 50.075642.7V - 5.5VU/DYes
MCP4022RheostatEE2.1, 5.0, 10.0, 50.075642.7V- 5.5VU/DYes
MCP4023PotentiometerEE2.1, 5.0, 10.0, 50.075642.7V - 5.5VU/DYes
MCP4024RheostatEE2.1, 5.0, 10.0, 50.075642.7V - 5.5VU/DYes
Note 1:Floating either terminal (A or B) allows the device to be used in Rheostat mode.
Low-Cost NV Digital POT with WiperLock™ Technology
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | MCP4021 |
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