Overview
The AD7710AR-REEL, produced by Analog Devices Inc., is a comprehensive analog front end designed for low-frequency measurement applications. This device is particularly suited for accepting low-level signals directly from strain gauges or transducers and converting them into a serial digital word. It employs a sigma-delta conversion technique, ensuring up to 24 bits of no missing codes performance. The AD7710AR-REEL features a programmable gain front end, on-chip digital filter, and self-calibration capabilities, making it ideal for use in smart, microcontroller-based systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 24 |
| Sampling Rate | 1.028 kSPS |
| Number of Inputs | 2 differential analog inputs, 1 differential reference input |
| Input Range | Dependent on VREF, can convert signals down to –VREF |
| Accuracy | ±0.0015% |
| Dynamic Range | True 23-bit dynamic range |
| Power Supply | Single supply (with VSS tied to AGND) or dual supply |
| Power Consumption | Typical standby power: 7 mW |
| Package Type | 24-lead SOIC, 24-lead DIP |
| Operating Temperature | –40°C to +85°C |
| Interface | Serial (SPI compatible) |
Key Features
- Programmable gain front end allowing direct connection to strain gauges or transducers.
- On-chip digital filter with programmable notch frequency.
- Self-calibration, system calibration, and background calibration options.
- Software programmable power-down mode for low power consumption.
- CMOS construction for low power dissipation.
- Bidirectional serial port for configuring input channel selection, gain settings, and signal polarity.
- Ability to read and write on-chip calibration registers.
Applications
The AD7710AR-REEL is suitable for a variety of low-frequency measurement applications, including:
- Strain gauge and transducer measurements.
- Industrial process control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Smart, microcontroller-based systems.
- Data acquisition systems.
Q & A
- What is the resolution of the AD7710AR-REEL?
The AD7710AR-REEL has a resolution of up to 24 bits. - What is the sampling rate of the AD7710AR-REEL?
The sampling rate is 1.028 kSPS. - How many analog input channels does the AD7710AR-REEL have?
The device has two differential analog input channels and one differential reference input channel. - What is the accuracy of the AD7710AR-REEL?
The accuracy is ±0.0015%. - Can the AD7710AR-REEL operate on a single power supply?
Yes, it can operate on a single supply by tying the VSS pin to AGND, but it can also operate with a dual supply for negative input signals. - What is the typical standby power consumption of the AD7710AR-REEL?
The typical standby power consumption is 7 mW. - What types of packages are available for the AD7710AR-REEL?
The device is available in 24-lead SOIC and 24-lead DIP packages. - What is the operating temperature range of the AD7710AR-REEL?
The operating temperature range is –40°C to +85°C. - Does the AD7710AR-REEL support calibration?
Yes, it supports self-calibration, system calibration, and background calibration. - How can the AD7710AR-REEL be configured?
The device can be configured using a bidirectional serial port for input channel selection, gain settings, and signal polarity.
