Overview
The AD7714YRZ-REEL, produced by Analog Devices Inc., is a comprehensive analog front end designed for low-frequency measurement applications. This 24-bit sigma-delta analog-to-digital converter (ADC) is optimized for use in smart, microcontroller- or DSP-based systems. It features a charge-balancing ADC with no missing codes, ensuring high accuracy and reliability. The device operates from a single supply voltage of either 3 V or 5 V and is available in various packages, including a 24-lead SOIC and TSSOP.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Analog Input Channels | 3 differential or 5 pseudo-differential |
| Number of Bits | 24 |
| Sampling Rate | 19.2 ksps |
| Input Polarity | Bipolar, Unipolar |
| Interface | SPI, QSPI, MICROWIRE, DSP compatible |
| Supply Voltage | 2.7 V to 3.3 V (Y grade), 4.75 V to 5.25 V (A grade) |
| Operating Temperature Range | -40°C to +105°C |
| Power Consumption | 350 µA typical, 15 µW typical in power-down mode |
| Package Type | 24-lead SOIC, TSSOP |
Key Features
- Charge-balancing ADC with 24 bits and no missing codes, ensuring high accuracy.
- Programmable gain front end with gains from 1 to 128.
- Three differential analog inputs or five pseudo-differential inputs.
- Differential reference input.
- Low noise (<150 nV rms) and low current consumption.
- Self-calibration, system calibration, and background calibration options.
- Ability to read and write calibration coefficients.
- CMOS construction for low power dissipation.
- Power-down mode reducing standby power consumption to 15 µW typical.
- Schmitt trigger inputs on SCLK and DIN for the Y grade.
Applications
- Portable industrial instruments.
- Portable weigh scales.
- Loop-powered systems.
- Pressure transducers.
Q & A
- What is the AD7714YRZ-REEL used for?
The AD7714YRZ-REEL is used as a complete analog front end for low-frequency measurement applications, particularly in smart, microcontroller- or DSP-based systems.
- What are the key features of the AD7714YRZ-REEL?
Key features include a 24-bit sigma-delta ADC, programmable gain front end, low noise and current consumption, and various calibration options.
- What are the operating voltage ranges for the AD7714YRZ-REEL?
The operating voltage ranges are 2.7 V to 3.3 V for the Y grade and 4.75 V to 5.25 V for the A grade.
- What types of input channels does the AD7714YRZ-REEL support?
The device supports three differential analog inputs or five pseudo-differential analog inputs.
- What is the sampling rate of the AD7714YRZ-REEL?
The sampling rate is 19.2 ksps.
- What interface protocols does the AD7714YRZ-REEL support?
The device supports SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.
- What is the power consumption of the AD7714YRZ-REEL in normal and power-down modes?
The normal power consumption is 350 µA typical, and in power-down mode, it reduces to 15 µW typical.
- What are the calibration options available for the AD7714YRZ-REEL?
The device offers self-calibration, system calibration, and background calibration options, and allows reading and writing of calibration coefficients.
- In what packages is the AD7714YRZ-REEL available?
The device is available in 24-lead SOIC and TSSOP packages.
- What are some common applications of the AD7714YRZ-REEL?
