Overview
The AD7712ARZ-REEL7, produced by Analog Devices Inc., is a high-precision, 24-bit sigma-delta analog-to-digital converter (ADC) designed for low-frequency measurement applications. This device features a complete analog front end with two analog input channels, making it suitable for a variety of measurement tasks. It can accept both low-level signals directly from transducers and high-level signals, and it outputs a serial digital word. The AD7712ARZ-REEL7 is particularly useful in smart, microcontroller-based systems due to its programmable gain front end, digital filter, and bidirectional serial interface.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 24 |
| Sampling Rate | 19.5 ksps |
| Input Channels | 2 |
| Input Range | Low level: ±VREF, High level: ±10V |
| Supply Voltage | 4.75V to 5.25V (analog), -5V to 10V (dual supply) |
| Interface | SPI, Serial |
| Polarity | Bipolar, Unipolar |
| Package | 24-SOIC (0.295, 7.50mm Width) |
| Power Consumption | 100 µW (typical in power-down mode) |
| Signal to Noise Ratio (SNR) | High accuracy with no missing codes to 24 bits |
Key Features
- 24-bit sigma-delta ADC with up to 24 bits of no missing codes performance.
- Two analog input channels: one with differential input capability and the other with input attenuation circuit.
- Programmable gain front end and programmable low-pass digital filter.
- Self-calibration, system calibration, and background calibration options.
- Bidirectional serial interface for easy connection to microcontrollers and digital signal processors.
- Low power consumption with a hardware programmable power-down mode.
- CMOS construction for low power dissipation.
Applications
The AD7712ARZ-REEL7 is ideal for various low-frequency measurement applications, including industrial process control, medical devices, and smart sensor systems. It is particularly suited for use in microcontroller-based systems where precision and flexibility in signal conditioning are required.
Q & A
- What is the resolution of the AD7712ARZ-REEL7?
The AD7712ARZ-REEL7 has a 24-bit resolution with no missing codes performance. - How many analog input channels does the AD7712ARZ-REEL7 have?
The device has two analog input channels. - What is the sampling rate of the AD7712ARZ-REEL7?
The sampling rate is 19.5 ksps. - What are the supply voltage requirements for the AD7712ARZ-REEL7?
The device operates with an analog supply voltage of 4.75V to 5.25V and can also be used with dual supplies ranging from -5V to 10V. - Does the AD7712ARZ-REEL7 support calibration?
Yes, it supports self-calibration, system calibration, and background calibration. - What type of interface does the AD7712ARZ-REEL7 use?
The device uses a bidirectional serial interface (SPI, Serial). - What is the power consumption of the AD7712ARZ-REEL7 in power-down mode?
The power consumption in power-down mode is typically 100 µW. - In what package is the AD7712ARZ-REEL7 available?
The device is available in a 24-SOIC (0.295, 7.50mm Width) package. - Is the AD7712ARZ-REEL7 suitable for use in microcontroller-based systems?
Yes, it is designed to be used in smart, microcontroller-based systems. - What are the input range capabilities of the AD7712ARZ-REEL7?
The device can accept low-level signals (±VREF) and high-level signals (±10V).
