Overview
The MAX135EWI-T is a 15-bit, multi-slope integration analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This CMOS ADC is known for its high resolution and low power consumption, making it suitable for a variety of precision measurement applications. The MAX135EWI-T operates at up to 16 conversions per second and can achieve higher resolution through data averaging. It features a simple 8-bit parallel data bus and three control lines, facilitating easy interface with common microprocessors. The device is available in 28-pin SOIC packages and supports both commercial and extended temperature grades.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 15 bits |
| Conversion Rate | Up to 16 conversions per second |
| Supply Current (Normal Operation) | 125µA max |
| Supply Current (Sleep Mode) | 10µA max |
| Full Scale Voltage | 300mV |
| LSB Value | 15µV |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 28-pin SOIC |
Key Features
- Multi-slope integration for low-noise and high-resolution conversions
- Data averaging capability to achieve up to 18-bit resolution
- Low power consumption with 125µA max in normal operation and 10µA max in sleep mode
- Simple 8-bit parallel data bus and three control lines for easy microprocessor interface
- Twos-complement output coding for simplified bipolar measurements
- Compact size in 28-pin SOIC packages
Applications
The MAX135EWI-T is ideal for various precision measurement and data acquisition applications, including:
- Data loggers
- Numerical control systems
- Weight scales
- Data-acquisition systems
- Panel meters
Q & A
- What is the resolution of the MAX135EWI-T ADC?
The MAX135EWI-T has a resolution of 15 bits. - What is the maximum conversion rate of the MAX135EWI-T?
The MAX135EWI-T can operate at up to 16 conversions per second. - How much power does the MAX135EWI-T consume in normal operation?
The MAX135EWI-T consumes a maximum of 125µA in normal operation. - What is the full scale voltage of the MAX135EWI-T?
The full scale voltage of the MAX135EWI-T is 300mV. - What is the package type of the MAX135EWI-T?
The MAX135EWI-T is available in 28-pin SOIC packages. - What are the operating temperature ranges for the MAX135EWI-T?
The operating temperature range for the MAX135EWI-T is -40°C to +85°C. - Can the MAX135EWI-T achieve higher resolution than 15 bits?
Yes, the MAX135EWI-T can achieve up to 18-bit resolution through data averaging. - What types of applications is the MAX135EWI-T suitable for?
The MAX135EWI-T is suitable for data loggers, numerical control systems, weight scales, data-acquisition systems, and panel meters. - How does the MAX135EWI-T interface with microprocessors?
The MAX135EWI-T interfaces with microprocessors via a simple 8-bit parallel data bus and three control lines. - What is the sleep mode current consumption of the MAX135EWI-T?
The sleep mode current consumption of the MAX135EWI-T is 10µA max.
