AD7708BRZ

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AD7708BRZ

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IC ADC 16BIT SIGMA-DELTA 28SOIC

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tube
ProductStatus Active
NumberofBits 16
SamplingRate(PerSecond) 1.37k
NumberofInputs 4, 8
InputType Differential, Pseudo-Differential, Single Ended
DataInterface SPI, DSP
Configuration MUX-PGA-ADC
NumberofA/DConverters 1
Architecture Sigma-Delta
ReferenceType External
Voltage-SupplyAnalog 2.7V ~ 3.3V, 5V
Voltage-SupplyDigital 2.7V ~ 3.3V, 5V
Features PGA
OperatingTemperature -40°C ~ 85°C
Package/Case 28-SOIC (0.295, 7.50mm Width)
SupplierDevicePackage 28-SOIC

Tổng quan

Description

The AD7708BRZ is an analog-to-digital converter (ADC) from Analog Devices, designed for precision measurement applications. It features a 16-bit sigma-delta ADC with a maximum input bandwidth of 20 kHz. The device is part of the AD7708 series, which offers low-power operation and is suitable for multiplexed channel measurements.
Key features include an integrated programmable gain amplifier, allowing for input ranges from ±10 mV to ±2.5 V, and a flexible serial interface compatible with SPI standards. The AD7708BRZ operates from a single 2.7 V to 5.25 V power supply and consumes minimal power, making it ideal for battery-powered and remote sensor applications.
The converter includes self-calibration and system calibration options to minimize offset and gain errors. It also supports multiple input channels, enabling the monitoring of various signals using one device. The AD7708BRZ is widely used in industrial process control, medical instrumentation, and other precision data acquisition systems. Its small package and robust performance make it a versatile choice for designers requiring reliable, high-resolution analog-to-digital conversion.

Equivalent

The AD7708BRZ is an analog-to-digital converter (ADC) designed by Analog Devices. Equivalent products to consider include:
1. TI ADS1258: A 24-bit ADC with similar input channels.
2. Maxim MAX11628: Offers multiple input channels with high resolution.
3. Microchip MCP3564R: A 24-bit ADC with differential inputs.
4. Linear Technology LTC2400: Known for its precision in similar applications.
Always check electrical characteristics and compatibility before substituting.

Features

The AD7708BRZ is a 16-bit, low power, sigma-delta analog-to-digital converter (ADC) designed for data acquisition applications. It features eight analog input channels for single-ended or differential inputs, making it versatile for various sensor and monitoring tasks. The ADC provides a programmable gain amplifier (PGA) with gain settings ranging from 1 to 128, allowing for input ranges from ±10 mV to ±2.5 V.
Key features include a low-pass digital filter with programmable cutoff frequency, helping to reduce noise and improve signal integrity. The device operates on a low power consumption, making it suitable for battery-powered and low-energy devices. It supports an SPI-compatible serial interface for easy integration with microcontrollers and DSPs.
The AD7708BRZ also offers a precision voltage reference, a clock oscillator, and on-chip calibration features for enhanced accuracy. Its high resolution and low noise performance make it ideal for applications in industrial automation, instrumentation, and medical devices. The BRZ suffix indicates the device is packaged in a 28-lead SSOP package, offering compact size and ease of use.

Pinout

The AD7708BRZ is an 8-channel, 16-bit, low-power, sigma-delta A/D converter designed by Analog Devices. It comes in a 24-pin package. Here's a concise breakdown of its pin functions:
1. AIN1-AIN8: Analog input channels (pins 1-8), used for measuring signals.
2. VDD: Positive power supply (pin 9).
3. GND: Ground (pin 10).
4. REFIN(+) and REFIN(-): Differential reference voltage inputs (pins 11 and 12).
5. MCLKIN/MCLKOUT: Master clock input/output (pins 13 and 14), for clock signal.
6. SYNC: Synchronization input (pin 15).
7. SCLK: Serial clock input (pin 16).
8. DIN: Data input for serial interface (pin 17).
9. DOUT: Data output for serial interface (pin 18).
10. CS: Chip select (pin 19), used to enable communication.
11. RESET: Reset input (pin 20).
12. AVDD/DVDD: Analog/digital supply voltages (pins 21 and 22).
13. AGND/DGND: Analog/digital ground (pins 23 and 24).
These pins enable the AD7708BRZ to function effectively in data acquisition systems, providing precise analog-to-digital conversion.

Manufacturer

The AD7708BRZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design, manufacture, and marketing of integrated circuits used in electronic equipment. The company focuses on analog, mixed-signal, and digital signal processing technologies. Analog Devices serves various industries, including automotive, communications, industrial, healthcare, and consumer electronics, providing solutions for data conversion, signal processing, and power management.

Application

The AD7708BRZ is an analog-to-digital converter used in various applications requiring precise data acquisition and processing. Key application areas include:
1. Industrial Process Control: Monitoring and controlling machinery and processes with high accuracy.
2. Instrumentation: Used in devices that require precise measurement, such as temperature, pressure, and flow sensors.
3. Medical Devices: Provides accurate readings in diagnostic equipment and patient monitoring systems.
4. Energy Management: Utilized in systems for monitoring and managing energy consumption.
5. Environmental Monitoring: Used in weather stations and pollution monitoring systems for accurate data collection.
These applications leverage its ability to convert analog signals to digital data efficiently and accurately.

Package

The AD7708BRZ is an analog-to-digital converter (ADC) from Analog Devices. It comes in a SSOP (Shrink Small Outline Package) with 24 leads, offering a compact form factor suitable for surface-mount applications.

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