AD7746ARUZ

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AD7746ARUZ

IC CAP TO DGT CONV 24BIT 16TSSOP

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  • Mfr. Part #AD7746ARUZ
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  • Datasheet
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Specifications

Part Status Active
Type Capacitance-to-Digital Converter
Number of Channels 2
Resolution (Bits) 24 b
Data Interface Serial
Voltage Supply Source Single Supply
Voltage - Supply 2.7V ~ 5.25V
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 16-TSSOP
Base Product Number AD7746

Overview

Description

The AD7746ARUZ is a precision capacitive-to-digital converter (CDC) designed by Analog Devices, ideal for applications requiring high-resolution capacitance measurements. It features a 24-bit resolution and a wide dynamic range, making it suitable for sensing applications in industrial, automotive, and consumer electronics.
Key specifications include an input capacitance range from 0 to 100 pF with two selectable measurement modes, enabling both single-ended and differential measurements. The device operates on a supply voltage of 2.7V to 5.25V and communicates via an I2C interface, facilitating easy integration into microcontroller-based systems.
The AD7746ARUZ is particularly noted for its low power consumption, making it suitable for battery-operated devices. Its integrated temperature compensation enhances accuracy in varying conditions. The chip is packaged in a compact LFCSP (Lead Frame Chip Scale Package), ensuring a small footprint for space-constrained designs.
Overall, the AD7746ARUZ is a reliable choice for applications needing precise capacitance measurements and offers versatility in various environmental conditions.

Features

The AD7746ARUZ is a high-performance capacitive-to-digital converter (CDC) designed for sensing applications. Key features include:
1. High Resolution: Offers 24-bit resolution for precise measurements.
2. Low Power Consumption: Consumes minimal power, making it suitable for battery-operated devices.
3. Multi-channel Input: Supports up to four external capacitive sensors, allowing for versatile applications.
4. Integrated Signal Processing: Includes features like averaging and filtering, enhancing measurement accuracy.
5. I2C Interface: Facilitates easy communication with microcontrollers and other digital systems.
6. Wide Supply Voltage Range: Operates from 2.7V to 5.5V, accommodating various power supply configurations.
7. Temperature Compensation: Provides stable performance across a wide temperature range.
8. Built-in Self-test: Ensures reliability and functionality of the device.
These features make the AD7746ARUZ ideal for applications in touch sensing, liquid level measurement, and humidity sensing.

Package

The AD7746ARUZ is packaged in a 16-lead LFCSP (Lead Frame Chip Scale Package) with a 4 mm x 4 mm footprint. This surface-mount package type is designed for compact applications and provides good thermal and electrical performance.

Pinout

The AD7746ARUZ is a capacitance-to-digital converter (CDC) from Analog Devices. It features a total of 16 pins in a TSSOP-16 package.
The key functions of its pins include:
1. Power Supply Pins: VDD (power supply) and VSS (ground).
2. I²C Interface: SDA (data line), SCL (clock line) for communication.
3. Interrupt Pin: DRDY (data ready) to signal when new data is available.
4. Control Pins: Various configuration pins including CS (Chip Select), REF (reference input), and other GPIOs.
5. Capacitance Inputs: CIN+ and CIN- for external capacitive sensor connections.
The AD7746ARUZ is designed for precise capacitance measurement, suitable for applications like liquid level sensing and position detection. Its integration of I²C allows for easy interfacing with microcontrollers.

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, Analog Devices is headquartered in Norwood, Massachusetts, and serves a variety of industries, including automotive, communications, healthcare, industrial automation, and consumer electronics. The company is known for its innovation in data conversion, signal conditioning, and power management technologies, providing solutions that enable the efficient processing of real-world signals. Analog Devices focuses on engineering excellence and is recognized for its commitment to quality and performance in its products.

Application

The AD7746ARUZ is a precision capacitive-to-digital converter (CDC) used in various application areas, including industrial automation, sensor interfaces, touch sensing, and medical devices. It excels in proximity sensing, liquid level measurement, and environmental monitoring, providing high accuracy and low power consumption for applications requiring precise capacitance measurements.

Equivalent

The AD7746ARUZ chip is a capacitive-to-digital converter. Equivalent products include:
1. Texas Instruments: ADS1230, ADS124S08
2. Microchip: MCP3550
3. Maxim Integrated: MAX11645
4. NXP: PCA9306
These alternatives may vary in specifications and features, so it's essential to review datasheets for compatibility based on your specific application needs.

Shipping

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DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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