Tibbit#43-1, M1S- Four-Channel Streaming ADC ±10V
This Tibbit is based on the AD7323 12-bit+sign successive-approximation (SAR) analog-to-digital converter (ADC) IC. It offers four single-ended or two differential channels.
In the single-ended mode, this Tibbit has an input range of ±10V, while in the differential mode it accepts signals in the ±20V range. Both are common output ranges of industrial pressure, temperature, and other types of transducers. If your application requires a wider input voltage range, consider using Tibbit #43-2 instead.
Tibbit #43-1 requires only the main 5V power source. To accept inputs greater than 5V, the Tibbit is equipped with a low-noise, inductorless DC-DC converter generating –14V and +14V from the module's +5V power supply. Since all additional voltages are generated onboard, there is no need for an external dual-rail power Tibbit #12.
An onboard PIC16F1825 microcontroller resides between the ADC and the host CPU of the Tibbo Project PCB (TPP). The microcontroller's firmware implements a simple command interface, accessible via TX and RX UART lines (there is also an RTS flow control line). Dedicated to serving the needs of the ADC and unburdened by any other tasks, the PIC microcontroller enables low-jitter sampling of analog data in the data streaming mode and enhances the linearity and precision of analog-to-digital conversions.
Tibbit #43-1 operates in either command (default) or data streaming mode. The command mode is used to configure the Tibbit's settings (operating parameters) and also to perform single ("spot") analog-to-digital conversions. In the data streaming mode, the Tibbit sends a continuous stream of low-jitter measurements performed at a preset sampling rate. The device is capable of performing up to 1,000 measurements/second when a single channel is enabled. Up to 200 measurements per second per channel are possible when all four channels are used.
The PIC microcontroller's firmware can be upgraded in the system and without any additional external hardware. The firmware update process utilizes the low-voltage programming (LVP) mode of the PIC microcontroller, with the TX line acting as ICSPCLK, the RX line acting as ICSPDAT, and the –MCLR line used to put the microcontroller into the LVP mode. CODY can include a firmware update file in your project and generate code for its execution. The firmware source code and published update hex files are available in a dedicated repository.
For information on the operating parameters of Tibbit #43-1, please refer to Specifications.
For information on operating Tibbit #43-1, please see Working with Tibbit #43-1.
Please check the detailed information from the website:
- #43-1, M1S: Four-Channel Streaming ADC ±10V - Tibbo Docs
