Overview
The AD7712AR-REEL7 is a 24-bit, sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed as a complete analog front end for low-frequency measurement applications. It features a high level of accuracy and flexibility, making it ideal for use in smart, microcontroller-based systems. The AD7712AR-REEL7 is available in a 24-lead small outline IC (SOIC) package and supports both single and dual power supply operations.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Manufacturer Part Number | AD7712AR-REEL7 | ||
| Number of Bits | 24 | ||
| Number of A/D Converters | 1 | ||
| Input Type | Differential, Single Ended | ||
| Sampling Rate (Per Second) | 1 k | Samples per second | |
| Reference Type | External, Internal | ||
| Voltage - Supply, Digital | 5 V | ||
| Voltage - Supply, Analog | 5 V ~ 10 V | ||
| Package / Case | 24-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | |
| Operating Temperature | -40°C ~ 85°C | ||
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | ||
| Lead Free Status / RoHS Status | Contains lead / RoHS non-compliant |
Key Features
- High Accuracy: No missing codes, ensuring true 23-bit dynamic range with ±0.0015% accuracy.
- Programmable Gain Amplifier (PGA): Gains from 1 to 128 for both input channels.
- Low-Pass Filter: Programmable filter cutoffs.
- Calibration Options: Self-calibration, system calibration, and background calibration with the ability to read/write calibration coefficients.
- Serial Interface: Bidirectional microcontroller serial interface (SPI).
- Power Efficiency: Low power consumption (25 mW typical) with a power-down mode (100 µW typical).
- Input Flexibility: Accepts low-level signals directly from transducers or strain gauges and high-level signals up to ±4 VREF/GAIN.
Applications
The AD7712AR-REEL7 is suitable for various applications, including:
- Process Control: Ideal for precision measurement and control in industrial processes.
- Smart Transmitters: Used in smart transmitter systems for accurate and reliable data transmission.
- Portable Industrial Instruments: Suitable for handheld and portable industrial measurement devices.
- Microcontroller-Based Systems: Integrates well with microcontrollers and DSP processors for advanced measurement and control systems.
Q & A
- What is the resolution of the AD7712AR-REEL7?
The AD7712AR-REEL7 is a 24-bit analog-to-digital converter. - What are the input types supported by the AD7712AR-REEL7?
The AD7712AR-REEL7 supports both differential and single-ended input types. - What is the sampling rate of the AD7712AR-REEL7?
The sampling rate is 1 k samples per second. - Does the AD7712AR-REEL7 support external and internal references?
Yes, it supports both external and internal reference options. - What is the operating temperature range of the AD7712AR-REEL7?
The operating temperature range is -40°C to 85°C. - What is the power consumption of the AD7712AR-REEL7 in normal and power-down modes?
The normal power consumption is 25 mW typical, and in power-down mode, it is 100 µW typical. - What type of packaging does the AD7712AR-REEL7 come in?
The AD7712AR-REEL7 comes in a 24-lead small outline IC (SOIC) package with tape and reel (TR) packaging. - Is the AD7712AR-REEL7 RoHS compliant?
No, the AD7712AR-REEL7 contains lead and is RoHS non-compliant. - What are the calibration options available for the AD7712AR-REEL7?
The AD7712AR-REEL7 supports self-calibration, system calibration, and background calibration. - What is the data interface of the AD7712AR-REEL7?
The data interface is a bidirectional microcontroller serial interface (SPI).
