Overview
The MAX132EWG+T is a high-resolution, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This CMOS, 18-bit plus sign, serial-output ADC utilizes multi-slope integration to achieve high-resolution conversions in less time than standard integrating ADCs. It supports up to 100 conversions per second and features a simple 4-wire serial interface compatible with common microprocessors. The device is particularly suited for applications requiring high accuracy, low noise, and compact size.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Conversion Rate | Up to 100 conversions per second |
| Input Range | ±512mV full-scale input range (2µV/LSB) |
| Supply Voltage | 4.5V to 5.5V |
| Operating Temperature | -40°C to 85°C |
| Accuracy | ±0.006% FSR at 16 conv/sec |
| Noise | 15µVRMS |
| Input Current | ±2pA |
| Package Type | 24-pin WSOIC |
| Interface | 4-wire serial interface (SPI compatible) |
| Power Consumption | Typical supply current: 60µA, Sleep mode: 1µA |
Key Features
- High-resolution conversions using multi-slope integration.
- Low conversion noise with guaranteed operation within ±512mV full-scale input range.
- Simple 4-wire serial interface for easy connection to microprocessors.
- Twos-complement output coding for simplified bipolar measurements.
- Four serially programmed digital outputs for controlling external multiplexers or programmable-gain amplifiers.
- Low power consumption with typical supply current of 60µA and reduced to 1µA in sleep mode.
- Compact size in 24-pin WSOIC package.
Applications
- Data loggers.
- Weigh scales.
- Data acquisition systems.
- Panel meters.
- Signal processing and portable devices.
Q & A
- What is the resolution of the MAX132EWG+T ADC?
The MAX132EWG+T has an 18-bit resolution. - What is the maximum conversion rate of the MAX132EWG+T?
The MAX132EWG+T can perform up to 100 conversions per second. - What is the input range of the MAX132EWG+T?
The input range is ±512mV full-scale input range (2µV/LSB). - What is the supply voltage range for the MAX132EWG+T?
The supply voltage range is 4.5V to 5.5V. - What is the operating temperature range of the MAX132EWG+T?
The operating temperature range is -40°C to 85°C. - How accurate is the MAX132EWG+T?
The accuracy is ±0.006% FSR at 16 conv/sec. - What is the noise level of the MAX132EWG+T?
The noise level is 15µVRMS. - What type of interface does the MAX132EWG+T use?
The MAX132EWG+T uses a 4-wire serial interface (SPI compatible). - How much power does the MAX132EWG+T consume?
The typical supply current is 60µA, and it reduces to 1µA in sleep mode. - In what package is the MAX132EWG+T available?
The MAX132EWG+T is available in a 24-pin WSOIC package.
