ICL7106CPLZ Series

series introduction

# ICL7106CPLZ Product Series Introduction

## 1. Overview
The ICL7106CPLZ is a highly popular and widely used integrated circuit belonging to the family of analog - to - digital converters (ADCs). It is specifically designed for use in digital voltmeters (DVMs) and other measurement instruments. This product series offers a cost - effective and reliable solution for converting analog voltage signals into digital values, enabling accurate and easy - to - read measurements.

## 2. Key Features

### 2.1 High - Resolution Conversion
The ICL7106CPLZ provides a 3.5 - digit display resolution. This means it can display values from 0 to 1999, which is sufficient for a wide range of general - purpose measurement applications. The high resolution allows for precise measurement of voltage levels, making it suitable for both educational and professional use.

### 2.2 Low Power Consumption
One of the significant advantages of this product series is its low power consumption. It operates on a single power supply, typically in the range of 7V to 15V. This makes it ideal for battery - powered devices such as portable digital multimeters. The low power requirement not only extends the battery life but also reduces the heat dissipation, enhancing the overall reliability of the instrument.

### 2.3 Direct LCD Drive
The ICL7106CPLZ is designed to directly drive a liquid - crystal display (LCD). This eliminates the need for additional display driver circuits, simplifying the circuit design and reducing the component count. The direct drive feature also ensures a clear and stable display of the measured values, with minimal interference.

### 2.4 Auto - Zero and Over - Range Detection
The chip incorporates an auto - zero function, which automatically compensates for any offset voltage in the input stage. This ensures accurate measurements even in the presence of small DC offsets. Additionally, it has an over - range detection feature. When the input voltage exceeds the maximum measurable range, the display shows an over - range indication, protecting the device from potential damage and alerting the user.

### 2.5 Differential Input
The ICL7106CPLZ has a differential input stage, which allows it to measure the voltage difference between two input terminals. This is useful in applications where the measurement needs to be made with respect to a reference voltage or in noisy environments, as it helps in rejecting common - mode noise.

## 3. Technical Specifications

### 3.1 Input Voltage Range
The typical input voltage range for the ICL7106CPLZ is from - 1.999V to + 1.999V. However, with the use of appropriate external attenuators or amplifiers, it can be configured to measure a wider range of voltages, from millivolts to several volts.

### 3.2 Conversion Rate
The conversion rate of the ADC is approximately 3 readings per second. This rate is suitable for most static or slowly changing voltage measurements. For applications where faster measurements are required, external circuitry can be added to increase the conversion speed.

### 3.3 Accuracy
The accuracy of the ICL7106CPLZ is typically within ± 0.05% of the reading, which is quite good for a low - cost ADC. This level of accuracy makes it suitable for a variety of measurement tasks, including voltage monitoring in power supplies, battery testing, and basic electrical circuit analysis.

### 3.4 Operating Temperature Range
The device can operate within a temperature range of 0°C to 70°C. This makes it suitable for use in normal indoor environments. For applications in more extreme temperature conditions, additional temperature compensation or protection measures may be required.

## 4. Applications

### 4

Images for reference

40-PDIP, E40.6 PKG

40-DIP

40-PDIP, E40.6 PKG

Datasheets

Partlist

ICL7106CPLZ