Overview
The ICL7109CMH+T is a 12-bit analog-to-digital converter (ADC) designed and manufactured by Analog Devices Inc./Maxim Integrated. This monolithic device is optimized for easy interface with microprocessors and UARTs, making it suitable for a variety of data acquisition and logging applications. It features a dual-slope architecture, which provides high accuracy and low noise, and is known for its low power consumption and minimal input bias current.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 30 |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | Parallel |
| Architecture | Dual Slope |
| Reference Type | External |
| Voltage - Supply, Analog | ±5V |
| Voltage - Supply, Digital | ±5V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 44-MQFP (10x10) |
Key Features
- High Accuracy: The ICL7109CMH+T offers high accuracy with a rollover error of less than 1 count and zero reading drift of less than 1μV/°C.
- Low Power Consumption: This device is designed with low power consumption, making it suitable for battery-powered and energy-efficient applications.
- Easy Interface: It can be directly interfaced with microprocessors and UARTs, facilitating easy integration into various systems.
- Zero-Integrator Phase: The inclusion of a zero-integrator phase eliminates overrange hangover, crosstalk, and hysteresis effects, enhancing the device's performance.
- High Current Sourcing Capabilities: The device can rapidly drive large capacitances often found on microprocessor buses.
Applications
The ICL7109CMH+T is versatile and can be used in various applications, including:
- Data Acquisition Systems: It serves as a low-cost, one-per-channel alternative to analog multiplexing due to its low power consumption and minimal input bias current.
- Remote Data Logging: The device can be configured to work with industry-standard UARTs for serial data transmission, making it ideal for remote data logging applications.
- Industrial Automation: Its high accuracy and reliability make it suitable for industrial automation and control systems.
Q & A
- What is the resolution of the ICL7109CMH+T? The ICL7109CMH+T is a 12-bit analog-to-digital converter.
- What is the sampling rate of the ICL7109CMH+T? The sampling rate is 30 samples per second.
- What type of input does the ICL7109CMH+T support? The device supports differential inputs.
- What is the data interface type of the ICL7109CMH+T? The data interface is parallel.
- What is the architecture of the ICL7109CMH+T? The device uses a dual-slope architecture.
- What is the operating temperature range of the ICL7109CMH+T? The operating temperature range is from 0°C to 70°C.
- What is the package type of the ICL7109CMH+T? The device comes in a 44-MQFP (10x10) package.
- How does the ICL7109CMH+T interface with microprocessors? It can be directly interfaced with microprocessors through chip select and two-byte enable inputs.
- What are the supply voltage requirements for the ICL7109CMH+T? The device requires ±5V for both analog and digital supplies.
- What are some key applications of the ICL7109CMH+T? It is used in data acquisition systems, remote data logging, and industrial automation.
