AD7703BRZ

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AD7703BRZ

IC ADC 20BIT SIGMA-DELTA 20SOIC

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Specifications

Part Status Active
Number of Bits 20
Sampling Rate (Per Second) 4k
Number of Inputs 1
Input Type Single Ended
Data Interface SPI
Configuration S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture Sigma-Delta
Reference Type External
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Operating Temperature -40°C ~ 85°C
Package / Case 20-SOIC (0.295", 7.50mm Width)
Supplier Device Package 20-SOIC
Mounting Type Surface Mount
Base Product Number AD7703

Overview

Description

The AD7703BRZ is a precision, low-power, dual-channel analog-to-digital converter (ADC) designed for high-resolution data acquisition applications. Operating in the 16-bit mode, it features a Sigma-Delta architecture that offers high performance in terms of noise and distortion, making it suitable for applications in industrial automation, medical instrumentation, and weighing systems.
This ADC operates on a single 5V power supply and supports various input ranges, providing flexibility in interfacing with different sensor types. It includes built-in programmable gain amplifiers (PGAs) that enhance its usability for low-level signals. The AD7703 communicates via a serial interface, allowing easy integration with microcontrollers and digital signal processors.
Key features include low power consumption, high accuracy, and the ability to perform digital filtering, which improves signal quality. Its applications span across fields such as process control, environmental monitoring, and data acquisition systems, making the AD7703BRZ a versatile choice for engineers looking for reliable ADC solutions.

Features

The AD7703BRZ is a precision, low-drift ADC (Analog-to-Digital Converter) designed for applications requiring high accuracy and stability. Key features include:
1. Resolution: 16-bit resolution with programmable gain amplifiers for enhanced signal processing.
2. Low Noise: Offers low noise performance, making it suitable for low-level signal applications.
3. Single Supply Operation: Operates from a single supply voltage, simplifying design and reducing power consumption.
4. Differential Inputs: Supports differential inputs, enhancing common-mode rejection and signal integrity.
5. Integrated Reference: Built-in voltage reference improves design simplicity and accuracy.
6. Flexible Interface: Compatible with various digital interfaces, including SPI for easy connectivity.
7. Low Power Consumption: Ideal for battery-powered applications due to its low power requirements.
8. Temperature Range: Operates effectively in a wide temperature range, making it suitable for harsh environments.
Overall, the AD7703BRZ is designed for precision measurement applications in industrial and medical instrumentation.

Package

The AD7703BRZ is available in a 16-lead TSSOP (Thin Shrink Small Outline Package) type.

Pinout

The AD7703BRZ is a precision, low-power, sigma-delta analog-to-digital converter (ADC) with a total of 28 pins. It features a 16-bit resolution and is designed for applications requiring accurate measurements in noisy environments.
Pin Functions:
1. AVDD: Analog power supply.
2. AGND: Analog ground.
3. DVDD: Digital power supply.
4. DGND: Digital ground.
5. VREF: Reference voltage input.
6. COM: Common connection for external components.
7. CLK: Clock input for timing.
8. SCLK: Serial clock for communication.
9. SDI: Serial data input.
10. SDO: Serial data output.
11. CS: Chip select for initiating communication.
12. RDY: Ready signal indicating data availability.
13. RST: Reset pin to initialize the device.
14. FILTER: Configurable filter selection.
15. MODE: Mode selection for operation.
16. SYNC: Synchronization input for multiple devices.
The device interfaces via a serial communication protocol, making it suitable for various applications, including industrial and instrumentation systems.

Manufacturer

The AD7703BRZ is manufactured by Analog Devices, Inc. (ADI), a multinational semiconductor company headquartered in Norwood, Massachusetts, USA. Established in 1965, ADI specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is well-known for its innovative solutions in a variety of applications, including industrial automation, healthcare, automotive, communications, and consumer electronics. ADI focuses on providing high-quality, reliable components that enable the efficient processing and conversion of real-world signals into digital information.

Application

The AD7703BRZ is a low-power, precision analog-to-digital converter (ADC) primarily used in applications such as industrial process control, medical instrumentation, sensor signal conditioning, weighing scales, and data acquisition systems. Its features, including low noise and high accuracy, make it suitable for applications requiring precise measurement of analog signals, particularly in environments demanding reliable performance and low power consumption.

Equivalent

The AD7703BRZ is a sigma-delta ADC. Equivalent products include the MCP3551 from Microchip, LTC2440 from Analog Devices, and ADS1231 from Texas Instruments. These alternatives offer similar performance in terms of resolution and features suitable for sensor applications and data acquisition. Always check specific datasheets for detailed comparisons and compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

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.

Payments

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