Overview
The MAX1237MEUA+ is a low-power, 12-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1236–MAX1239 family, which features internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. The MAX1237 operates from a single supply of 2.7V to 3.6V and is designed for high efficiency and versatility in various analog-to-digital conversion applications.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12-bit | |
| Number of Analog Input Channels | 4 | Single-ended or 2-channel fully differential |
| Supply Voltage | 2.7V to 3.6V | |
| Supply Current | 670µA at 94.4ksps, < 1µA in AutoShutdown™ | Varying current based on sampling rate |
| Sampling Rate | Up to 94.4ksps | |
| Internal Reference Voltage | 2.048V | External reference from 1V to VDD also supported |
| Interface | I²C-compatible 2-wire serial interface | |
| Package | 8-pin µMAX | |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption with AutoShutdown™ reducing supply current to less than 1µA at low throughput rates.
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface.
- Software-configurable unipolar or bipolar, single-ended or differential operation.
- Internal FIFO with channel-scan mode.
- Small package options (8-pin µMAX).
Applications
The MAX1237MEUA+ is suitable for a variety of applications requiring low-power, high-resolution analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, especially those requiring low power and high reliability.
- Data acquisition systems in various industries.
Q & A
- What is the resolution of the MAX1237MEUA+ ADC?
The MAX1237MEUA+ has a 12-bit resolution.
- What is the supply voltage range for the MAX1237MEUA+?
The supply voltage range is 2.7V to 3.6V.
- How many analog input channels does the MAX1237MEUA+ have?
The MAX1237MEUA+ has four analog input channels, which can be configured as single-ended or two fully differential channels.
- What is the maximum sampling rate of the MAX1237MEUA+?
The maximum sampling rate is up to 94.4ksps.
- Does the MAX1237MEUA+ support external reference voltages?
- What interface does the MAX1237MEUA+ use for communication?
The MAX1237MEUA+ uses an I²C-compatible 2-wire serial interface.
- What is the package type for the MAX1237MEUA+?
The MAX1237MEUA+ is available in an 8-pin µMAX package.
- What is the operating temperature range for the MAX1237MEUA+?
The operating temperature range is -40°C to +85°C.
- How does the AutoShutdown™ feature work in the MAX1237MEUA+?
The AutoShutdown™ feature powers down the device between conversions, reducing the supply current to less than 1µA at low throughput rates.
- Can the MAX1237MEUA+ be configured for unipolar or bipolar operation?
