Overview
The ICL7109EQH+TD is a 12-bit analog-to-digital converter (ADC) designed and manufactured by Analog Devices Inc./Maxim Integrated. This monolithic device is engineered for easy interface with microprocessors and UARTs, making it a versatile component for various data acquisition systems. It features 3-state binary outputs, which can be directly interfaced to a microprocessor bus, and supports UART handshake mode for serial data transmission.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Output Type | 3-State Binary |
| Package Type | 44-PLCC (16.59x16.59 mm) |
| Input Type | Single Input, Dual Slope |
| Rollover Error | |
| Zero Reading Drift | |
| Power Consumption | |
| Input Bias Current |
Key Features
- High accuracy with low rollover error and zero reading drift.
- Easy interface with microprocessors and UARTs.
- 3-state binary outputs for direct microprocessor bus interface.
- UART handshake mode for serial data transmission.
- Low power consumption and low input bias current.
- Elimination of overrange hangover, crosstalk, and hysteresis effects through a zero-integrator phase.
- Enhanced current sourcing capabilities to drive large capacitances on microprocessor buses.
Applications
The ICL7109EQH+TD is suitable for various data acquisition systems, particularly in remote data logging applications. It is an attractive, low-cost alternative to analog multiplexing due to its single-channel design and low power consumption. Other applications include industrial automation, medical devices, and any system requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the ICL7109EQH+TD?
The ICL7109EQH+TD has a resolution of 12 bits. - What type of output does the ICL7109EQH+TD provide?
The device provides 3-state binary outputs. - What is the package type of the ICL7109EQH+TD?
The package type is 44-PLCC (16.59x16.59 mm). - How does the ICL7109EQH+TD interface with microprocessors?
The device can be directly interfaced to a microprocessor bus through its 3-state binary outputs and is controlled by the microprocessor via chip select and two byte enable inputs. - What is the rollover error of the ICL7109EQH+TD?
The rollover error is less than 1 count. - What is the zero reading drift of the ICL7109EQH+TD?
The zero reading drift is less than 1 μV/°C. - Is the ICL7109EQH+TD suitable for remote data logging applications?
Yes, it is suitable for remote data logging applications and supports UART handshake mode for serial data transmission. - What are the key advantages of using the ICL7109EQH+TD in data acquisition systems?
The key advantages include high accuracy, low power consumption, low input bias current, and the elimination of overrange hangover, crosstalk, and hysteresis effects. - Can the ICL7109EQH+TD drive large capacitances on microprocessor buses?
Yes, the device has enhanced current sourcing capabilities to rapidly drive large capacitances often found on microprocessor buses. - What are some common applications of the ICL7109EQH+TD?
Common applications include industrial automation, medical devices, and any system requiring precise analog-to-digital conversion.
