Overview
The ICL7136CMH, produced by Analog Devices Inc./Maxim Integrated, is a monolithic analog-to-digital converter (ADC) designed for high accuracy and low power consumption. This device is particularly suited for applications requiring precise measurements and minimal power usage, making it ideal for portable systems. The ICL7136CMH integrates various on-board active components, including segment drivers, segment decoders, a voltage reference, and a clock circuit, which enables it to directly drive non-multiplexed liquid crystal displays (LCDs) without the need for external display drive circuitry.
Key Specifications
| Parameter | Value |
|---|---|
| Package / Case | MQFP-44 |
| Supply Voltage - Max | 9 V |
| Supply Voltage - Min | 5 V |
| Power Dissipation (Pd) | 500 mW |
| Conversion Technique | Dual-Slope |
| Resolution | 16-Bit |
| Number of Channels | 1 |
| Input Type | True Differential |
| Reference Type | On-board Voltage Reference |
Key Features
- High Input Impedance: Ensures minimal loading on the input signal.
- Dual-Slope Conversion Technique: Automatically rejects interference signals common in industrial environments.
- True Differential Input and Reference: Useful for ratiometric measurements such as ohms or bridge transducers.
- Low Power Consumption: Makes it superior for portable systems.
- High Accuracy: Lowers rollover error to less than one count and zero reading drift to less than 1μV/°C.
- No External Display Drive Circuitry Needed: Directly drives non-multiplexed LCD displays.
Applications
The ICL7136CMH is versatile and can be used in various applications, including:
- Portable Systems: Due to its low power consumption, it is ideal for battery-powered devices.
- Industrial Measurements: The dual-slope conversion technique makes it robust against interference, making it suitable for industrial environments.
- Ratiometric Measurements: Useful for measurements involving ohms or bridge transducers.
- Display Systems: Directly drives LCD displays, making it a complete solution for display-based measurement systems.
Q & A
- What is the primary conversion technique used in the ICL7136CMH?
The ICL7136CMH uses the dual-slope conversion technique. - What is the maximum supply voltage for the ICL7136CMH?
The maximum supply voltage is 9 V. - What type of input does the ICL7136CMH have?
The ICL7136CMH has a true differential input. - Does the ICL7136CMH require external display drive circuitry?
No, it directly drives non-multiplexed LCD displays. - What is the power dissipation of the ICL7136CMH?
The power dissipation is 500 mW. - What is the resolution of the ICL7136CMH?
The resolution is 16-Bit. - What makes the ICL7136CMH suitable for industrial environments?
The dual-slope conversion technique automatically rejects interference signals common in industrial environments. - How accurate is the ICL7136CMH in terms of rollover error and zero reading drift?
The rollover error is less than one count, and the zero reading drift is less than 1μV/°C. - What type of package is the ICL7136CMH available in?
The ICL7136CMH is available in an MQFP-44 package. - Is the ICL7136CMH suitable for portable systems?
