Overview
The ICL7109EQH+D is a monolithic 12-bit analog-to-digital converter (ADC) 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, making it an attractive option for remote data logging and other applications requiring precise analog-to-digital conversion.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Input Type | Differential |
| Data Interface | Parallel |
| Configuration | ADC, Dual Slope |
| Sampling Rate | 30 conversions per second |
| Number of Inputs | 1 |
| Package Type | 44-PLCC (Plastic Leaded Chip Carrier) |
| Dimensions | 16.59x16.59 mm |
| Rollover Error | Less than 1 count |
| Zero Reading Drift | Less than 1 μV/°C |
Key Features
- High accuracy with low rollover error and zero reading drift.
- Low power consumption and minimal input bias current.
- Direct interface with microprocessor bus through chip select and byte enable inputs.
- Compatibility with industry standard UARTs for serial data transmission.
- 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+D is suitable for a variety of applications, including:
- Remote data logging systems.
- Data acquisition systems where low cost and low power consumption are critical.
- Systems requiring precise analog-to-digital conversion without the need for analog multiplexing.
- Industrial control and monitoring systems.
- Medical and scientific instrumentation.
Q & A
- What is the resolution of the ICL7109EQH+D?
The ICL7109EQH+D has a resolution of 12 bits. - What type of input does the ICL7109EQH+D support?
The ICL7109EQH+D supports differential inputs. - How does the ICL7109EQH+D interface with microprocessors?
The ICL7109EQH+D can be directly interfaced with microprocessor buses through chip select and byte enable inputs. - What is the sampling rate of the ICL7109EQH+D?
The ICL7109EQH+D has a sampling rate of 30 conversions per second. - What package type is the ICL7109EQH+D available in?
The ICL7109EQH+D is available in a 44-PLCC (Plastic Leaded Chip Carrier) package. - How accurate is the ICL7109EQH+D in terms of rollover error and zero reading drift?
The ICL7109EQH+D has a rollover error of less than 1 count and a zero reading drift of less than 1 μV/°C. - Can the ICL7109EQH+D be used with UARTs?
Yes, the ICL7109EQH+D is compatible with industry standard UARTs for serial data transmission. - What are some common applications of the ICL7109EQH+D?
The ICL7109EQH+D is commonly used in remote data logging, data acquisition systems, industrial control, and medical instrumentation. - How does the ICL7109EQH+D handle overrange hangover and crosstalk?
The ICL7109EQH+D eliminates overrange hangover, 'crosstalk,' and hysteresis effects through a zero-integrator phase. - What are the power consumption and input bias current characteristics of the ICL7109EQH+D?
The ICL7109EQH+D has low power consumption and minimal input bias current.
