Overview
The AD7714AR-5REEL, manufactured by Analog Devices Inc., is a high-precision analog-to-digital converter (ADC) designed for low-frequency measurement applications. This 24-bit ADC features a charge-balancing architecture and a programmable gain front end, making it ideal for systems requiring high accuracy and low noise. The device operates from a single supply voltage of 4.75 V to 5.25 V and is available in a 24-lead SOIC package.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7714AR-5REEL |
| Package | 24-SOIC (0.295", 7.50mm Width) |
| Number of Bits | 24 |
| Sampling Rate (Per Second) | 19.2 ksps |
| Number of Inputs | 3 (fully differential), 5 (pseudo-differential) |
| Input Type | Differential, Pseudo-Differential |
| Data Interface | SPI, QSPI, MICROWIRE, DSP Compatible |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 4.75 V to 5.25 V |
| Voltage - Supply, Digital | 3 V to 5.25 V |
| Temperature Range | -40°C to +105°C |
Key Features
- High Precision: 24-bit no missing codes with ±0.0015% nonlinearity and low rms noise (<150 nV).
- Programmable Gain Front End: Gains from 1 to 128, configurable as three fully differential or five pseudo-differential inputs.
- Low Power Consumption: Typical current of 350 μA with power-down mode reducing standby power to 5 μA.
- Flexible Interface: Three-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Self-Calibration: On-chip self-calibration, system calibration, and background calibration options.
- Low-Pass Filter: Programmable filter cutoffs for adjusting filter settings.
- CMOS Construction: Ensures very low power dissipation.
Applications
- Portable Industrial Instruments: Ideal for battery-powered devices requiring high accuracy and low power consumption.
- Portable Weigh Scales: Suitable for precision weight measurement applications.
- Loop-Powered Systems: Used in systems powered by a single loop current.
- Pressure Transducers: For precise measurement of pressure in various industrial and medical applications.
- Signal Conditioning: General-purpose signal conditioning for low-frequency signals.
Q & A
- What is the resolution of the AD7714AR-5REEL ADC?
The AD7714AR-5REEL has a 24-bit resolution.
- What are the available input configurations for the AD7714AR-5REEL?
The device can be configured as three fully differential inputs or five pseudo-differential inputs.
- What is the sampling rate of the AD7714AR-5REEL?
The sampling rate is up to 19.2 ksps.
- What are the supply voltage ranges for the AD7714AR-5REEL?
The analog supply voltage range is 4.75 V to 5.25 V, and the digital supply voltage range is 3 V to 5.25 V.
- Does the AD7714AR-5REEL support self-calibration?
Yes, it supports on-chip self-calibration, system calibration, and background calibration.
- What is the typical power consumption of the AD7714AR-5REEL?
The typical current is 350 μA, with a power-down mode reducing standby power to 5 μA.
- What types of interfaces does the AD7714AR-5REEL support?
The device supports SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.
- What is the temperature range for the AD7714AR-5REEL?
The operating temperature range is -40°C to +105°C.
- What kind of filter does the AD7714AR-5REEL have?
The device features a programmable low-pass filter with adjustable cutoffs.
- What are some common applications for the AD7714AR-5REEL?
Common applications include portable industrial instruments, portable weigh scales, loop-powered systems, and pressure transducers.
