Overview
The MAX1237LEUA+T 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 MAX1237LEUA+T operates from a single supply voltage of 2.7V to 3.6V and is designed for low-power consumption, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Supply Voltage (VDD) | 2.7 to 3.6 | V |
| Internal Reference Voltage | 2.048 | V |
| External Reference Voltage Range | 1 to VDD | V |
| Sampling Rate (Maximum) | 94.4 ksps | |
| Supply Current at Maximum Sampling Rate | 670 µA | |
| Shutdown Current | < 1 µA | |
| Analog Input Channels | 4 (MAX1237) | |
| Package Type | 8-pin µMAX | |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption with AutoShutdown™ feature to reduce supply current between conversions.
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface supporting standard, fast, and high-speed modes.
- Software-configurable for unipolar or bipolar, and single-ended or differential operation.
- Fully differential analog inputs with a high input impedance.
- Compact 8-pin µMAX package for space-efficient designs.
Applications
The MAX1237LEUA+T is suitable for a wide range of applications, including:
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense systems where low power and high accuracy are critical.
- Automotive systems, particularly in sensor and control applications.
- Consumer electronics, such as in audio and video processing.
Q & A
- What is the resolution of the MAX1237LEUA+T ADC?
The MAX1237LEUA+T has a 12-bit resolution.
- What is the supply voltage range for the MAX1237LEUA+T?
The supply voltage range is from 2.7V to 3.6V.
- What is the maximum sampling rate of the MAX1237LEUA+T?
The maximum sampling rate is 94.4 ksps.
- How many analog input channels does the MAX1237LEUA+T have?
The MAX1237LEUA+T has 4 analog input channels.
- What is the typical supply current at the maximum sampling rate?
The typical supply current at the maximum sampling rate is 670 µA.
- Can the MAX1237LEUA+T be configured for differential or single-ended operation?
Yes, the MAX1237LEUA+T can be software-configured for unipolar or bipolar, and single-ended or differential operation.
- What is the operating temperature range of the MAX1237LEUA+T?
The operating temperature range is from -40°C to +85°C.
- What package type is the MAX1237LEUA+T available in?
The MAX1237LEUA+T is available in an 8-pin µMAX package.
- Does the MAX1237LEUA+T have an internal voltage reference?
Yes, the MAX1237LEUA+T features an internal voltage reference of 2.048V.
- Can the MAX1237LEUA+T use an external reference voltage?
Yes, the MAX1237LEUA+T can be configured to use an external reference voltage ranging from 1V to VDD.
