Overview
The ICL7109IPL+ is a monolithic 12-bit analog-to-digital (A/D) converter designed by Analog Devices Inc./Maxim Integrated. This device is optimized for easy interface with microprocessors and UARTs, making it a versatile component for various data acquisition systems. It features high accuracy, low power consumption, and minimal input bias current, which are crucial for reliable data conversion and transmission.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Input Type | Single-ended |
| Conversion Method | Dual Slope |
| Output Type | 3-State Binary |
| Interface | Microprocessor and UART compatible |
| Package Type | 40-PDIP (Plastic Dual-In-Line) |
| Operating Temperature Range | -40°C to +85°C (Industrial Grade) |
| Power Consumption | Low power |
| Input Bias Current | Minimal |
| Rollover Error | < 1 count |
| Zero Reading Drift | < 1 μV/°C |
Key Features
- High accuracy with low rollover error (< 1 count) and minimal zero reading drift (< 1 μV/°C)
- Low power consumption and minimal input bias current
- 3-State binary outputs for direct interface with microprocessor buses
- Compatibility with industry-standard UARTs for serial data transmission
- Zero-integrator phase to eliminate overrange hangover, crosstalk, and hysteresis effects
- Enhanced current sourcing capabilities to drive large capacitances on microprocessor buses
Applications
The ICL7109IPL+ is suitable for a variety of data acquisition systems, including remote data logging applications. It is an attractive alternative to analog multiplexing due to its low cost and one-per-channel design. Other applications include:
- Data acquisition systems
- Remote data logging
- Industrial control systems
- Medical devices
- Automotive systems
Q & A
- What is the resolution of the ICL7109IPL+ A/D converter?
The ICL7109IPL+ has a resolution of 12 bits. - What is the conversion method used by the ICL7109IPL+?
The conversion method used is dual slope. - How does the ICL7109IPL+ interface with microprocessors and UARTs?
The device features 3-State binary outputs that can be directly interfaced with microprocessor buses and is compatible with industry-standard UARTs for serial data transmission. - What are the key accuracy specifications of the ICL7109IPL+?
The device has a rollover error of less than 1 count and a zero reading drift of less than 1 μV/°C. - What are the benefits of the zero-integrator phase in the ICL7109IPL+?
The zero-integrator phase eliminates overrange hangover, crosstalk, and hysteresis effects. - What is the operating temperature range of the ICL7109IPL+?
The operating temperature range is -40°C to +85°C (Industrial Grade). - What package types are available for the ICL7109IPL+?
The device is available in a 40-PDIP (Plastic Dual-In-Line) package. - Why is the ICL7109IPL+ preferred over analog multiplexing in some applications?
It is preferred due to its low cost and one-per-channel design, along with low power consumption and minimal input bias current. - What are some common applications of the ICL7109IPL+?
Common applications include data acquisition systems, remote data logging, industrial control systems, medical devices, and automotive systems. - How does the ICL7109IPL+ handle large capacitances on microprocessor buses?
The device has enhanced current sourcing capabilities to rapidly drive large capacitances often found on microprocessor buses.
