MCP4451-503E/ML Microchip Technology, MCP4451-503E/ML Datasheet - Page 21

• Manufacturer Part Number: MCP4451-503E/ML
• Description: IC POT 50K QUAD 8BIT 20QFN
• Manufacturer: Microchip Technology

Specifications of MCP4451-503E/ML

• Package / Case: 20-VFQFN Exposed Pad
• Resistance (ohms): 50K
• Taps: 257
• Number Of Circuits: 4
• Temperature Coefficient: *
• Memory Type: Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Pots: Quad
• Taps Per Pot: 257
• Resistance: 50 KOhms
• Wiper Memory: Volatile
• Digital Interface: I2C
• Operating Supply Voltage: 1.8 V to 5.5 V
• Supply Current: 600 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AN747: Communicating with Daisy Chained MCP42XXX
The MCP41XXX and MCP42XXX family of digital
potentiometers allow for daisy chaining of multiple devices
on a single SPI bus. It is possible to communicate to multiple
devices using one 3-wire data bus (CS, CLK and DATA), by
connecting the SO pin on one device to the SI pin of the
next device in the chain. This application note details one
example of source code that is used to communicate with
eight daisy chained devices.
AN757: Interfacing Microchip’s MCP41XXX/MCP4XXX
Communication between the MCP41XXX and MCP42XXX
family of digital potentiometers and the Motorola 68HC12
family of microcontrollers is discussed. These devices
communicate using a standard 3-wire SPI compatible
interface. Specifi cally, the MC68HC912B32 evaluation board
was used.
Stand-Alone Analog and Interface Products
Digital Potentiometer Solutions
Digital Potentiometers
Digital Potentiometer to the Motorola 68HC12
Microcontroller
AN1080: Understanding Digital Potentiometer Resistance
This application note discusses how process, voltage and
temperature effect the resistor network’s characteristics,
specifications and techniques to improve system
performance.
AN1316: Using Digital Potentiometers for Programmable
This Application Note will discuss implementations of
programmable gain circuits using an op amp and a digital
potentiometer. This discussion will include implementation
details for the digital potentiometer’s resistor network. It is
important to understand these details to understand the
effects on the application.
Digital Potentiometer Design Guide
Amplifi er Gain
Variations
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