Overview
The MAX111, specifically the MAX111BEPE, is a low-cost, 2-channel, 14-bit serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates with a single +5V supply and is designed for high-resolution battery-powered or remote-sensing applications. It features an internal auto-calibration technique that achieves 14-bit resolution plus overrange without the need for external components. The MAX111 is ideal for applications requiring low power consumption and high accuracy.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | Single +5V |
| Resolution | 14-bit plus sign and overrange |
| Analog Input Range | Differential: ±1.5V, Single-ended: 0V to +1.5V |
| Linearity | 0.05% |
| Supply Current | 640µA (operating), 4µA (power-down) |
| Conversion Rate | Up to 50 conversions/sec |
| Interface Compatibility | SPI™, QSPI™, MICROWIRE™ |
| Package Options | 16-pin DIP, SO, 20-pin SSOP |
Key Features
- Single +5V supply operation
- Two differential input channels
- 14-bit resolution plus sign and overrange
- Internal auto-calibration for offset and gain-error correction
- Low power consumption: 640µA operating, 4µA in power-down mode
- Fast serial interface compatible with SPI™, QSPI™, and MICROWIRE™
- No external components required
- 50Hz/60Hz rejection
Applications
- Process Control
- Weigh Scales
- Panel Meters
- Data-Acquisition Systems
- Temperature Measurement
- Battery-Powered Devices
- Remote Sensing Applications
Q & A
- What is the supply voltage requirement for the MAX111BEPE?
The MAX111BEPE operates with a single +5V supply.
- What is the resolution of the MAX111BEPE?
The MAX111BEPE has a 14-bit resolution plus sign and overrange.
- What is the analog input range for the MAX111BEPE?
The analog input range is differential: ±1.5V, or single-ended: 0V to +1.5V.
- How much power does the MAX111BEPE consume?
The MAX111BEPE consumes 640µA in operating mode and 4µA in power-down mode.
- What interfaces is the MAX111BEPE compatible with?
The MAX111BEPE is compatible with SPI™, QSPI™, and MICROWIRE™ interfaces.
- Does the MAX111BEPE require external components for operation?
No, the MAX111BEPE does not require external components for operation.
- What are the package options available for the MAX111BEPE?
The MAX111BEPE is available in 16-pin DIP, SO, and 20-pin SSOP packages.
- What are some typical applications of the MAX111BEPE?
Typical applications include process control, weigh scales, panel meters, data-acquisition systems, and temperature measurement.
- How does the MAX111BEPE handle calibration?
The MAX111BEPE uses an internal auto-calibration technique to achieve offset and gain-error correction.
- What is the conversion rate of the MAX111BEPE?
The MAX111BEPE can perform up to 50 conversions per second.
