AD7746ARUZ

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AD7746ARUZ

+BOM

IC CAP TO DGT CONV 24BIT 16TSSOP

  • ManufacturerAnalog Devices Inc.

  • Mfr. Part #AD7746ARUZ

  • In Stock8561

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Specifications

Attribute Value
PartStatus Active
Type Capacitance-to-Digital Converter
NumberofChannels 2
Resolution(Bits) 24 b
DataInterface Serial
VoltageSupplySource Single Supply
Voltage-Supply 2.7V ~ 5.25V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 16-TSSOP (0.173", 4.40mm Width)
SupplierDevicePackage 16-TSSOP
BaseProductNumber AD7746

Overview

Description

The AD7746ARUZ is a high-performance capacitance-to-digital converter (CDC) designed by Analog Devices. It features a 24-bit resolution and is capable of accurately measuring small changes in capacitance, making it suitable for applications in proximity sensing, touch sensing, and fluid level measurement. The device operates with a voltage supply range of 2.7V to 5.5V and can be interfaced via a serial I²C compatible interface.
Key features include low power consumption, integrated temperature compensation, and various programmable options for sensor configurations. The AD7746ARUZ can handle capacitive sensors, allowing for diverse applications in consumer electronics, industrial automation, and medical devices. Its compact design and high accuracy make it an ideal choice for embedded systems requiring precise capacitance measurements.
Overall, the AD7746ARUZ is a versatile and reliable component for engineers looking to implement advanced capacitive sensing solutions in their products.

Equivalent

The AD7746ARUZ chip is a capacitance-to-digital converter primarily used for capacitive sensing applications. Equivalent products include:
1. Texas Instruments ADS1232 - A precision analog-to-digital converter.
2. Microchip MCP3471 - A 16-bit ADC with capacitive sensing capabilities.
3. Maxim Integrated MAX11200 - A low-power, 24-bit ADC suitable for similar applications.
Always verify specific requirements and compatibility when considering alternatives.

Features

The AD7746ARUZ is a high-performance capacitive-to-digital converter (CDC) from Analog Devices. Key features include:
1. High Resolution: 24-bit resolution provides accurate capacitive measurements.
2. Low Noise: Offers low noise performance, enhancing measurement reliability.
3. Multi-Channel Support: Supports multiple capacitive sensor inputs, enabling simultaneous measurement.
4. Integrated Temperature Compensation: Automatically compensates for temperature variations, improving accuracy.
5. Digital Output: Provides a digital output interface for easy integration with microcontrollers and other digital systems.
6. Low Power Consumption: Designed for low power operation, suitable for battery-powered applications.
7. I2C/SPI Interface: Supports standard communication protocols (I2C and SPI) for flexible interfacing.
8. Programmable Settings: Features configurable settings for gain, sampling rate, and filter options, allowing customization for specific applications.
These features make the AD7746ARUZ ideal for applications in touch sensing, level sensing, and other capacitive measurement tasks.

Pinout

The AD7746ARUZ is a capacitive touch sensor interface IC with a total of 16 pins. Its primary functions include capacitive sensing, analog-to-digital conversion, and I2C communication for interfacing with microcontrollers.
Key pin functions include:
1. VDD (Power): Power supply input.
2. GND (Ground): Ground reference.
3. SCL (I2C Clock): I2C clock line.
4. SDA (I2C Data): I2C data line.
5. CS (Chip Select): Used for selecting the device in multi-device configurations.
6. INT (Interrupt): Output for interrupt signals.
7. C0, C1 (Capacitive Sensing Inputs): Inputs for connecting capacitive touch sensors.
8. C2 (Reference Capacitor): For reference capacitance measurement.
Other pins include configuration and test points, such as the reset pin and various power management pins. The AD7746ARUZ is commonly used in applications requiring touch sensing, such as consumer electronics and industrial controls.

Manufacturer

The AD7746ARUZ is manufactured by Analog Devices, Inc. (ADI), a leading global company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, ADI is known for its innovative solutions in various sectors, including communications, automotive, healthcare, and industrial applications. The AD7746ARUZ is a capacitance-to-digital converter that allows for precise measurement of capacitance and is commonly used in sensor applications. Analog Devices focuses on providing advanced technology for signal processing and data conversion, catering to a wide range of industries.

Application

The AD7746ARUZ is a high-precision capacitance-to-digital converter (CDC) suitable for applications requiring accurate capacitance measurements. Key application areas include:
1. Touch Sensing: Used in touchscreens and user interfaces for detecting touch events.
2. Proximity Sensing: Employed in devices that detect the presence of objects or users.
3. Level Sensing: Utilized in liquid level sensors for monitoring fluid levels in tanks.
4. Humidity Sensors: Applied in capacitive humidity sensors to measure moisture levels.
5. Industrial Automation: Used in various industrial sensors and control systems for accurate measurements.
Its high resolution and low power consumption make it ideal for portable and battery-operated devices.

Package

The AD7746ARUZ is packaged in a 16-lead LFCSP (Lead Frame Chip Scale Package) with a 3 mm x 3 mm footprint. This type of package is designed for high-performance applications with minimal space requirements.