Overview
The AD7714AR-5 is a high-resolution analog-to-digital converter (ADC) designed by Analog Devices Inc. This component is part of the AD7714 series and is specifically tailored for low-frequency measurement applications. It features a 24-bit sigma-delta conversion architecture, providing high accuracy and precision in data acquisition systems. The AD7714AR-5 is suitable for a variety of applications, including portable industrial instruments, portable weigh scales, and loop-powered systems.
Key Specifications
| Parameter | Value | Units/Comments |
|---|---|---|
| Manufacturer Part Number | AD7714AR-5 | |
| Manufacturer | Analog Devices Inc. | |
| Package / Case | 24-SOIC (0.295 inches, 7.50mm Width) | |
| Number of Inputs | 3, 5 | Differential or Pseudo-Differential |
| Number of Bits | 24 | |
| Sampling Rate (Per Second) | 1 kbps (1000 samples per second) | |
| Reference Type | External | |
| Voltage - Supply, Digital | 3 V ~ 5.25 V | |
| Voltage - Supply, Analog | 5 V | |
| Operating Temperature | -40°C ~ 85°C | |
| Interface | SPI, DSP | |
| Architecture | Sigma-Delta |
Key Features
- High-resolution 24-bit analog to digital conversion with no missing codes.
- Multiple input channels: three fully differential or five pseudo-differential inputs.
- Programmable gain amplifier with gains from 1 to 128.
- Sigma-Delta conversion technique for high accuracy.
- External reference input.
- Low noise and low current consumption (350 μA typical, 5 μA in power-down mode).
- Three-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Self-calibration, system calibration, and background calibration options.
- Ability to read and write calibration coefficients.
- Low power dissipation and power-down mode for reduced standby power consumption.
Applications
- Portable industrial instruments.
- Portable weigh scales.
- Loop-powered systems.
- Pressure transducers.
- Smart, microcontroller- or DSP-based systems.
Q & A
- What is the resolution of the AD7714AR-5 ADC?
The AD7714AR-5 has a 24-bit resolution.
- How many input channels does the AD7714AR-5 support?
The AD7714AR-5 supports three fully differential or five pseudo-differential input channels.
- What is the sampling rate of the AD7714AR-5?
The sampling rate of the AD7714AR-5 is 1 kbps (1000 samples per second).
- What type of interface does the AD7714AR-5 use?
The AD7714AR-5 uses a three-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- What is the operating temperature range of the AD7714AR-5?
The operating temperature range of the AD7714AR-5 is -40°C to 85°C.
- Does the AD7714AR-5 support calibration options?
Yes, the AD7714AR-5 supports self-calibration, system calibration, and background calibration options.
- What is the power consumption of the AD7714AR-5 in normal and power-down modes?
The AD7714AR-5 consumes 350 μA typically in normal mode and 5 μA in power-down mode.
- What type of architecture does the AD7714AR-5 use for analog-to-digital conversion?
The AD7714AR-5 uses a sigma-delta conversion architecture.
- Is the AD7714AR-5 RoHS compliant?
No, the AD7714AR-5 is not RoHS compliant; it contains lead.
- What is the package type of the AD7714AR-5?
The AD7714AR-5 is available in a 24-SOIC package.
