AD7714AR-5

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AD7714AR-5

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IC ADC 24BIT SIGMA-DELTA 24SOIC

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tube,Tube
ProductStatus Obsolete
NumberofBits 24
SamplingRate(PerSecond) 1k
NumberofInputs 3, 5
InputType Differential, Pseudo-Differential
DataInterface SPI, DSP
Configuration MUX-PGA-ADC
NumberofA/DConverters 1
Architecture Sigma-Delta
ReferenceType External
Voltage-SupplyAnalog 5V
Voltage-SupplyDigital 3V ~ 5.25V
Features PGA
OperatingTemperature -40°C ~ 85°C
Package/Case 24-SOIC (0.295, 7.50mm Width)
SupplierDevicePackage 24-SOIC

Tổng quan

Description

The AD7714AR-5 is a 24-bit sigma-delta (Σ-Δ) ADC from Analog Devices, designed for low-frequency, high-precision measurement applications. It features on-chip programmable gain (1–128), a low-noise PGA, and serial interface (SPI-compatible).
Key specifications:
- Resolution: 24 bits (no missing codes).
- Inputs: 3 differential/5 pseudo-differential channels.
- Data Rate: Up to 500 Hz (fully settled).
- Supply Voltage: 5V (AD7714AR-5 variant).
- Low Power: 1.5 mA typical current.
Applications include weigh scales, strain gauges, and industrial process control. The device includes self-calibration and system calibration modes, reducing offset and gain errors.
Package: 24-lead SOIC. Operates over -40°C to +85°C. Ideal for low-noise, high-accuracy signal conditioning in harsh environments.
For detailed use, refer to the datasheet for register configuration and timing diagrams.

Equivalent

The AD7714AR-5 is a 24-bit sigma-delta ADC with a 5V supply. Equivalent or similar products include:
- AD7714AR-3 (3V supply)
- AD7715 (similar but with different input ranges)
- LTC2440 (24-bit, high-precision ADC from Linear Tech)
- ADS1256 (24-bit ADC from Texas Instruments)
- MAX1402 (24-bit ADC from Maxim Integrated)
These alternatives offer comparable resolution and performance for precision measurement applications.

Manufacturer

The AD7714AR-5 is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, ADI is renowned for its precision data converters, amplifiers, and sensors, serving industries like automotive, healthcare, industrial automation, and communications. The AD7714AR-5 is a 24-bit sigma-delta ADC, reflecting ADI's expertise in precision measurement solutions.

Application

The AD7714AR-5 is a 24-bit sigma-delta ADC with low noise, high resolution, and on-chip digital filtering, making it ideal for:
1. Industrial Process Control – Pressure, temperature, and strain measurements.
2. Medical Instrumentation – Precision sensor interfaces (e.g., ECG, blood pressure monitors).
3. Weigh Scales & Load Cells – High-accuracy weight measurement.
4. Portable & Battery-Powered Devices – Low-power operation (3V or 5V supply).
5. Data Acquisition Systems – Slow but ultra-precise signal conversion.
Its programmable gain amplifier (PGA) and low drift suit applications requiring high-precision analog front-ends.

Package

The AD7714AR-5 comes in a 24-lead SOIC (Small Outline Integrated Circuit) package. This surface-mount package is compact and widely used for analog and mixed-signal ICs. The "-5" suffix typically denotes a specific performance grade or operating condition, such as a 5V supply voltage. The SOIC package is suitable for industrial and precision applications.

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