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AD8402AR10

Name: AD8402AR10
Rating: 4.7 (12 reviews)

IC DGTL POT 10KOHM 256TAP 14SOIC

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包 SOP14
資料表 AD8402AR10 DataSheet
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規格

Package	Tube,Tube
ProductStatus	Obsolete
Taper	Linear
Configuration	Potentiometer
NumberofCircuits	2
NumberofTaps	256
Resistance(Ohms)	10k
Interface	SPI
MemoryType	Volatile
Voltage-Supply	2.7V ~ 5.5V
Tolerance	±20%
TemperatureCoefficient(Typ)	500ppm/°C
MountingType	Surface Mount
SupplierDevicePackage	14-SOIC
Package/Case	14-SOIC (0.154, 3.90mm Width)
OperatingTemperature	-40°C ~ 125°C

概述

Description

The AD8402AR10 is a dual, digitally controlled variable resistor (digital pot) integrated circuit manufactured by Analog Devices. It features 256 wiper positions that can be controlled via a simple 3-wire serial interface (SPI), making it suitable for applications requiring fine-tuning of resistance values. The device offers a maximum resistance of 10 kΩ per channel, with low power consumption and high reliability.
Key features include low temperature coefficient, excellent linearity, and the ability to operate across a wide voltage range. Its compact 8-lead MSOP package allows for easy integration into various electronic designs, such as audio equipment, sensor calibration, and adjustable gain control circuits. The AD8402AR10 is ideal for applications in consumer electronics, automotive, and industrial systems where precise resistance adjustments are crucial.

Features

The AD8402AR10 is a dual digital-to-analog converter (DAC) designed by Analog Devices. Key features include:
1. Resolution: 10-bit resolution, allowing for 1024 discrete output levels.
2. Dual Channel: Two separate DAC channels enable simultaneous output.
3. Output Range: Typically configurable for 0 to V_REF or bipolar outputs.
4. Interface: Compatible with SPI (Serial Peripheral Interface) for easy integration with microcontrollers.
5. Power Supply: Operates with a single +5V power supply, simplifying design considerations.
6. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
7. Fast Settling Time: Settling time less than 10 microseconds, which is beneficial for dynamic applications.
8. Temperature Range: Industrial temperature range (-40°C to +85°C), ensuring robust performance in various environments.
These features make the AD8402AR10 an ideal choice for various applications, including industrial control systems, signal processing, and portable devices.

Package

The AD8402AR10 is packaged in a 10-lead MSOP (Mini Small Outline Package).

Pinout

The AD8402AR10 is a dual 8-bit digital-to-analog converter (DAC) with a total of 10 pins. Its primary function is to convert digital signals into corresponding analog voltages, making it suitable for various applications such as audio processing, signal generation, and control systems.
Key pin functions include:
1. VDD: Power supply for the DAC.
2. GND: Ground reference.
3. VOUTA/VOUTB: Analog output voltages for channels A and B, respectively.
4. LDAC: Load DAC register for simultaneous updating of outputs.
5. CS: Chip select for enabling the device.
6. SCLK: Serial clock input for data transfer.
7. SDIN: Serial data input for receiving digital data.
8. A/B: Select between the two DAC channels.
9. RESET: Resets the DAC to a known state.
10. VR: Reference voltage input, which sets the output range.
This device is widely used in applications that require precise voltage control.

Manufacturer

The AD8402AR10 is manufactured by Analog Devices, Inc. Analog Devices is a global semiconductor company known for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company specializes in designing and manufacturing components used in a wide range of applications, including communications, automotive, industrial automation, healthcare, and consumer electronics. Analog Devices is recognized for its innovative solutions and is a key player in the analog semiconductor industry.

Application

The AD8402AR10 is a dual digital-to-analog converter (DAC) used in various applications, including audio signal processing, industrial automation, and instrumentation. It is suitable for control systems, signal generation, and calibration tasks in test equipment. Additionally, the device can be employed in motor control, programmable gain amplifiers, and waveform generation for simulation and testing purposes. Its precision and versatility make it ideal for embedded systems and consumer electronics requiring accurate analog output.

Equivalent

The AD8402AR10 chip is a dual, 256-tap, digital potentiometer. Equivalent products include:
1. MCP4131 - Microchip
2. MCP4231 - Microchip (dual version)
3. MAX5216 - Maxim Integrated
4. DS1803 - Maxim Integrated
These alternatives offer similar functionality in digital potentiometry, but always verify specific requirements like voltage, resistance, and interface compatibility.