Overview
The ICL7109CQH+TD is a monolithic 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This device is engineered for easy interface with microprocessors and UARTs, making it suitable for a variety of data acquisition and conversion applications. The ICL7109CQH+TD features a dual-slope architecture, which ensures high accuracy and stability in converting analog signals to digital data.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 1 Channel |
| Interface Type | Parallel |
| Sampling Rate | 30 samples per second (S/s) |
| Analog Supply Voltage | ±5V |
| Digital Supply Voltage | ±5V |
| Operating Temperature | 0°C to 70°C |
| Package / Case | 44-PLCC (Plastic Leaded Chip Carrier) |
| Mounting Type | Surface Mount Technology (SMT) |
| Integral Nonlinearity (INL) | 1 count |
Key Features
- Dual-Slope Architecture: Ensures high accuracy and stability in analog-to-digital conversion.
- High Accuracy: Low rollover error (less than 1 count) and zero reading drift (less than 1μV/°C).
- Easy Interface: Directly interfaces with microprocessors and UARTs through chip select and byte enable inputs.
- Low Power Consumption: Suitable for battery-powered and low-power applications.
- Enhanced Current Sourcing: Capable of rapidly driving large capacitances on microprocessor buses.
- No Overrange Hangover: Eliminates overrange hangover, crosstalk, and hysteresis effects.
Applications
The ICL7109CQH+TD is versatile and can be used in various applications, including:
- Data Acquisition Systems: Ideal for single-channel data acquisition due to its low power consumption and input bias current.
- Remote Data Logging: Outputs can be easily converted to UART handshake mode for serial data transmission.
- Industrial Automation: Suitable for industrial environments requiring accurate and reliable analog-to-digital conversion.
- Medical Devices: Used in medical equipment where high accuracy and stability are crucial.
Q & A
- What is the resolution of the ICL7109CQH+TD?
The resolution of the ICL7109CQH+TD is 12 bits.
- What is the sampling rate of the ICL7109CQH+TD?
The sampling rate of the ICL7109CQH+TD is 30 samples per second (S/s).
- What type of interface does the ICL7109CQH+TD use?
The ICL7109CQH+TD uses a parallel interface.
- What is the operating temperature range of the ICL7109CQH+TD?
The operating temperature range of the ICL7109CQH+TD is from 0°C to 70°C.
- What is the package type of the ICL7109CQH+TD?
The ICL7109CQH+TD comes in a 44-PLCC (Plastic Leaded Chip Carrier) package.
- How does the ICL7109CQH+TD interface with microprocessors?
The ICL7109CQH+TD interfaces with microprocessors through chip select and byte enable inputs, allowing direct connection to a microprocessor bus.
- What are the key advantages of the dual-slope architecture in the ICL7109CQH+TD?
The dual-slope architecture ensures high accuracy, stability, and eliminates overrange hangover, crosstalk, and hysteresis effects.
- Is the ICL7109CQH+TD suitable for low-power applications?
Yes, the ICL7109CQH+TD is suitable for low-power applications due to its low power consumption.
- Can the ICL7109CQH+TD be used in remote data logging applications?
Yes, the outputs of the ICL7109CQH+TD can be easily converted to UART handshake mode for serial data transmission, making it suitable for remote data logging applications.
- What is the integral nonlinearity (INL) of the ICL7109CQH+TD?
The integral nonlinearity (INL) of the ICL7109CQH+TD is 1 count.
