ICL7135CN

Images are for reference only

ICL7135CN

+BOM

IC DISPLAY DRIVR 4.5DIGIT 28DIP

365 Days Quality Guarantee

7*24 hours service quarantee

90-day after-sales guarantee

Genuine Product Guarantee

Specifications

Attribute Value
Part Status Obsolete
Type Display Driver
Number of Channels 1
Resolution (Bits) 4.5 Digit
Voltage Supply Source Single Supply
Voltage - Supply 4V ~ 6V
Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole
Package / Case 28-DIP (0.600", 15.24mm)
Supplier Device Package 28-PDIP
Base Product Number ICL7135

Overview

Description

The ICL7135CN is a highly integrated, low-power analog-to-digital converter (ADC) primarily used for digital voltmeter applications. It features a 3.5-digit LED display, providing a straightforward interface for measuring voltages with high precision. The device operates with a sample-and-hold circuit, allowing it to convert analog signals to a 12-bit digital output, which can represent voltage levels from 0 to 1999 mV.
Key features include a dual-slope integration method that enhances accuracy and stability, noise rejection, and the ability to operate with a reference voltage for calibration. The ICL7135CN is designed for easy interfacing with microcontrollers and can be used in various measurement applications, including portable devices and industrial equipment.
Its low power consumption and compact design make it suitable for battery-operated instruments. Overall, the ICL7135CN is a reliable choice for applications requiring precise voltage measurements in a user-friendly format.

Equivalent

The ICL7135CN is a 3.5-digit analog-to-digital converter (ADC). Equivalent products include the MAX130 and MAX131 series from Maxim Integrated, the MCP120 series from Microchip, and the AD7571 from Analog Devices. These alternatives also offer similar digitization capabilities, resolution, and interfacing options suitable for digital voltmeter applications. Always check specific datasheets for compatibility.

Features

The ICL7135CN is a high-precision, 3.5-digit analog-to-digital converter (ADC) designed for use in digital voltmeter (DVM) applications. Key features include:
1. Resolution: 3.5 digits (up to 1999 counts).
2. Input Voltage Range: Typically ±2V with internal reference.
3. Display Driver: Directly drives a 7-segment LED display.
4. Low Power Consumption: Designed for battery-operated devices.
5. High Accuracy: Offers low offset and gain errors.
6. Dual Slope Integration: Provides reliable and stable measurements.
7. Built-in Reference: Includes an internal voltage reference for ease of use.
8. Multiple Modes: Supports DC voltage measurement with fast response time.
9. Temperature Stability: Ensures performance across a wide temperature range.
The ICL7135CN is suitable for precision measurement applications in laboratory instruments, process controls, and portable devices.

Pinout

The ICL7135CN is a 3.5-digit Analog-to-Digital Converter (ADC) with a 16-pin Dual In-line Package (DIP). The pin configuration and functions are as follows:
1. V+ - Positive power supply (+5V to +15V)
2. V- - Negative power supply (-5V to 0V)
3. Vref - Reference voltage input
4. AGND - Analog ground
5. D0 - Least significant bit (LSB) output
6. D1 - Second bit output
7. D2 - Most significant bit (MSB) output
8. D3 - Overflow indicator
9. EOC - End of conversion signal
10. CH1/CH2 - Input channel selection
11. A/D - Analog to Digital conversion control
12. CS - Chip select
13. R/W - Read/Write control
14. RESET - Reset control
15. CLK - Clock input
16. Vout - Output voltage (optional feature)
This ADC is commonly used in digital voltmeters and other measurement applications.

Manufacturer

The ICL7135CN is manufactured by Intersil Corporation, which is known for its specialization in analog and mixed-signal semiconductor solutions. Intersil was established in 1967 and has since become a key player in the electronics industry, focusing on high-performance power management and precision analog products. The company develops a wide range of integrated circuits (ICs) for various applications, including automotive, industrial, communications, and consumer electronics.
Intersil has a strong reputation for innovation and quality, particularly in the fields of power management and signal processing. The ICL7135 is a low-power, high-resolution analog-to-digital converter (ADC) widely used in digital voltmeters and other measurement applications, emphasizing Intersil's commitment to providing advanced solutions for precision and reliability in electronic design. Intersil was acquired by Renesas Electronics Corporation in 2017, further enhancing its capabilities and market reach.

Application

The ICL7135CN is a dual-slope analog-to-digital converter (ADC) commonly used in various applications, including digital voltmeters, multimeters, and other precision measurement devices. Its high resolution and accuracy make it suitable for laboratory instruments, industrial process controls, and data acquisition systems. Additionally, it can be employed in battery-powered devices due to its low power consumption. The chip is also utilized in temperature measurement systems, weighing scales, and calibration equipment, where precise conversion of analog signals to digital format is essential.

Package

The ICL7135CN is typically available in a Dual In-Line Package (DIP) configuration, specifically a 28-pin DIP. This packaging allows for easy integration into various electronic circuit boards.