Overview
The AD7711ARZ-REEL, produced by Analog Devices Inc., is a highly integrated analog-to-digital converter (ADC) designed for low-frequency measurement applications. This device serves as a complete analog front end, capable of accepting low-level signals directly from transducers and outputting a serial digital word. It employs a sigma-delta conversion technique to achieve up to 24 bits of no missing codes performance. The AD7711 is particularly suited for use in smart, microcontroller-based systems due to its programmable features and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Conversion Technique | Sigma-Delta |
| Sample Rate | 19.5 kSPS |
| Input Type | Differential and Single-Ended Analog Inputs, Differential Reference Input |
| Power Supply | Single supply (with VSS tied to AGND) or dual supply (with VSS negative) |
| Package Type | 24-Lead SOIC (Wide) |
| Operating Temperature | -40°C to +85°C |
| Power Consumption (Standby) | 7 mW typical |
| Interface | Bidirectional Serial Port |
Key Features
- Programmable gain front end and digital filter
- Self-measurement calibration, system calibration, and background calibration options
- Two current sources for RTD excitation in three-wire and four-wire configurations
- Low power dissipation with software programmable power-down mode
- CMOS construction for low power consumption
- Configurable gain settings, signal polarity, input channel selection, and RTD current control via the serial port
Applications
The AD7711ARZ-REEL is ideal for various low-frequency measurement applications, including industrial process control, medical devices, and precision instrumentation. It is particularly useful in systems that require high accuracy and low noise, such as temperature measurement using RTDs, pressure sensors, and other transducers.
Q & A
- What is the resolution of the AD7711ARZ-REEL?
The AD7711ARZ-REEL has a resolution of 24 bits. - What conversion technique does the AD7711ARZ-REEL use?
The AD7711ARZ-REEL employs a sigma-delta conversion technique. - What is the sample rate of the AD7711ARZ-REEL?
The sample rate of the AD7711ARZ-REEL is 19.5 kSPS. - What types of inputs does the AD7711ARZ-REEL support?
The AD7711ARZ-REEL supports differential and single-ended analog inputs, as well as a differential reference input. - How can the power supply for the AD7711ARZ-REEL be configured?
The AD7711ARZ-REEL can be operated from a single supply (by tying the VSS pin to AGND) or a dual supply (with VSS negative). - What is the typical standby power consumption of the AD7711ARZ-REEL?
The typical standby power consumption is 7 mW. - What interface does the AD7711ARZ-REEL use for configuration and data transfer?
The AD7711ARZ-REEL uses a bidirectional serial port. - Does the AD7711ARZ-REEL support calibration options?
Yes, the AD7711ARZ-REEL supports self-measurement calibration, system calibration, and background calibration options. - What is the package type of the AD7711ARZ-REEL?
The AD7711ARZ-REEL is available in a 24-Lead SOIC (Wide) package. - What are some common applications of the AD7711ARZ-REEL?
The AD7711ARZ-REEL is commonly used in industrial process control, medical devices, and precision instrumentation.
