MCP4641-503E/ST Allicdata Electronics
Allicdata Part #:

MCP4641-503E/ST-ND

Manufacturer Part#:

MCP4641-503E/ST

Price: $ 0.76
Product Category:

Integrated Circuits (ICs)

Manufacturer: Microchip Technology
Short Description: IC DGTL POT 50K 129TAPS 14-TSSOP
More Detail: Digital Potentiometer 50k Ohm 2 Circuit 129 Taps I...
DataSheet: MCP4641-503E/ST datasheetMCP4641-503E/ST Datasheet/PDF
Quantity: 375
1 +: $ 0.68670
25 +: $ 0.57103
100 +: $ 0.51912
Stock 375Can Ship Immediately
$ 0.76
Specifications
Series: --
Packaging: Tube 
Part Status: Active
Taper: Linear
Configuration: Potentiometer
Number of Circuits: 2
Number of Taps: 129
Resistance (Ohms): 50k
Interface: I²C
Memory Type: Non-Volatile
Voltage - Supply: 1.8 V ~ 5.5 V
Features: Selectable Address
Tolerance: ±20%
Temperature Coefficient (Typ): 150 ppm/°C
Resistance - Wiper (Ohms) (Typ): 75
Operating Temperature: -40°C ~ 125°C
Package / Case: 14-TSSOP (0.173", 4.40mm Width)
Supplier Device Package: 14-TSSOP
Base Part Number: MCP4641
Description

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Digital potentiometers are a type of electromechanical component designed to constantly vary the resistance between two nodes based on the application of an external control signal. The MCP4641-503E/ST is a single, 256 tap, SPI digitally controlled potentiometer that is able to provide 64 resistance time constants between minimum and maximum as varied by the control signal. The control of the device is performed via the Serial Peripheral Interface bus, which consists of the clock, Chip Select, Data Input, and Data Output lines.The MCP4641-503E/ST provides reliable resistance adjustment with a power input voltage range from 1.8 to 5.5V. Common applications for the MCP4641-503E/ST include user adjustable gain control, dual pot applications, and rotary and mechanical switches. In addition, this device can be used as a digital potentiometer or as a variable resistor, allowing for the tuning of certain control systems.The MCP4641-503E/ST features a non-volatile memory, meaning that stored values are kept even when the device is turned off. It is designed to operate over a wide temperature range of -40°C to +125°C and is particularly suited for precision control applications.At the heart of the MCP4641-503E/ST is a mechanical potentiometer, which is a capacitance-based device that works in a very simple manner. When a control signal is applied, the capacitor plates move from one side to the other in order to create varying amounts of resistance between the two < nodes. This resistance can then be measured in order to determine the current output from the device.As with other digitally controlled potentiometers, the resistance of the MCP4641-503E/ST can be programmed via the SPI bus. The device contains a single non-volatile memory register, which is used to store the values for up to 64 unique resistance time constants. The maximum resistance is set to 5 kOhms, while the minimum resistance is set to 0. The resistance values are linearly adjustable, allowing for greater precision when tuning the device.The working principle of the MCP4641-503E/ST is based on its use of the Serial Peripheral Interface (SPI). It is designed to be used as an I/O device within a larger system, meaning that the MCP4641-503E/ST can either send or receive data on the SPI bus. The MCP4641-503E/ST can be programmed to accept up to 64 resistance time constants and the voltage signal is converted into a higher-level logic level signal, allowing it to interface with other digital devices.In summary, the MCP4641-503E/ST is a digitally-controlled potentiometer designed to provide reliable resistance adjustment between two nodes. This device is particularly well-suited for precision control applications and can be used as either a digital pot or a variable resistor. It is designed to connect to a SPI bus, allowing for data to be sent or received via the I/O device. The MCP4641-503E/ST features a non-volatile memory, meaning that the stored values are kept even when the device is turned off. Common applications for these types of digital potentiometers include user adjustable gain control, dual pot applications, and rotary and mechanical switches.

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