Overview
The MAX135CWI+ is a high-resolution, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This 15-bit ADC is designed for applications requiring high accuracy and low noise. It utilizes a multi-slope integration technique to achieve high resolution and low conversion noise.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 15 bits (effective 18 bits with data averaging) |
| Number of Channels | 1 Channel |
| Interface Type | Parallel |
| Input Type | Differential |
| Conversion Rate | Up to 16 conversions per second (can operate up to 6 times this rate) |
| Supply Current | 125µA maximum (normal operation), 10µA maximum (sleep mode) |
| Full Scale Range | 300mV (15µV per LSB) |
| Accuracy | ±0.005% at 16 conversions per second |
| Package | 28-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
Key Features
- High resolution with 15-bit binary output and effective 18-bit resolution through data averaging
- Low conversion noise and high accuracy (±0.005% at 16 conversions per second)
- Low power consumption: 125µA maximum in normal operation and 10µA maximum in sleep mode
- Multi-slope integration technique for low-noise and high-resolution conversions
- Simple 8-bit parallel data bus and three control lines for easy interface to microprocessors
- Twos-complement output coding for simplified bipolar measurements
Applications
- Data loggers
- Numerical control systems
- Weight scales
- Data-acquisition systems
- Panel meters
Q & A
- What is the resolution of the MAX135CWI+ ADC?
The MAX135CWI+ has a 15-bit resolution, with an effective 18-bit resolution through data averaging.
- What is the conversion rate of the MAX135CWI+?
The MAX135CWI+ can perform up to 16 conversions per second, but it can operate at up to 6 times this rate.
- How much power does the MAX135CWI+ consume?
The MAX135CWI+ consumes a maximum of 125µA during normal operation and 10µA in sleep mode.
- What is the full scale range of the MAX135CWI+?
The full scale range is 300mV, with 15µV per LSB.
- What is the accuracy of the MAX135CWI+ at 16 conversions per second?
The accuracy is ±0.005% at 16 conversions per second.
- What type of package does the MAX135CWI+ come in?
The MAX135CWI+ comes in a 28-SOIC package.
- What is the operating temperature range of the MAX135CWI+?
The operating temperature range is 0°C ~ 70°C.
- How is the MAX135CWI+ mounted?
The MAX135CWI+ is surface mounted.
- What are some common applications of the MAX135CWI+?
Common applications include data loggers, numerical control systems, weight scales, data-acquisition systems, and panel meters.
- How does the MAX135CWI+ interface with microprocessors?
The MAX135CWI+ uses a simple 8-bit parallel data bus and three control lines for easy interface to microprocessors.
