Overview
The MAX135EPI is a 15-bit, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This CMOS ADC utilizes multi-slope integration, which provides low-noise and high-resolution conversions. It is designed for applications requiring high accuracy and low power consumption.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 15 bits |
| Number of Channels | 1 Channel |
| Interface Type | Parallel |
| Sampling Rate | 16 conversions per second |
| Input Type | Differential |
| Supply Voltage (Analog and Digital) | 5V |
| Supply Current (Normal Operation) | 125µA max |
| Supply Current (Sleep Mode) | 10µA max |
| Operating Temperature | -40°C to 85°C |
| Package/Case | 28-DIP (0.600", 15.24mm) |
Key Features
- Multi-slope integration for low-noise and high-resolution conversions
- High resolution of 15 bits with the capability to achieve 18-bit resolution using Super LSBs and data averaging
- Low conversion noise, allowing operation at a full scale of 300mV (15µV per LSB)
- Low power consumption with a maximum supply current of 125µA during normal operation and 10µA in sleep mode
- Simple 8-bit parallel data bus and three control lines for easy interface to microprocessors
- Two's-complement output coding for simplified bipolar measurements
Applications
The MAX135EPI is ideal for various applications that require high resolution and low power consumption, including:
- Data loggers
- Numerical control systems
- Weight scales
- Data-acquisition systems
- Panel meters
Q & A
- What is the resolution of the MAX135EPI ADC?
The MAX135EPI has a resolution of 15 bits, with the capability to achieve 18-bit resolution using Super LSBs and data averaging.
- What is the sampling rate of the MAX135EPI?
The MAX135EPI operates at a sampling rate of 16 conversions per second, but it can operate up to 6 times this rate.
- What is the input type of the MAX135EPI?
The input type of the MAX135EPI is differential.
- What is the supply voltage for the MAX135EPI?
The supply voltage for both the analog and digital sections is 5V.
- What is the maximum supply current during normal operation?
The maximum supply current during normal operation is 125µA.
- What is the operating temperature range for the MAX135EPI?
The operating temperature range is -40°C to 85°C.
- What package options are available for the MAX135EPI?
The MAX135EPI is available in 28-pin DIP and SO packages.
- How does the MAX135EPI achieve high resolution?
The MAX135EPI achieves high resolution through multi-slope integration and the use of Super LSBs with data averaging.
- What are some typical applications for the MAX135EPI?
Typical applications include data loggers, numerical control systems, weight scales, data-acquisition systems, and panel meters.
- How does the MAX135EPI interface with microprocessors?
The MAX135EPI interfaces with microprocessors through a simple 8-bit parallel data bus and three control lines.
