Overview
The MAX1139MEEE+T is a low-power, 10-bit, 12-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1136–MAX1139 family, which features internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. It is designed for applications requiring multiple analog input channels with low power consumption and high precision.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10-bit |
| Number of Channels | 12 |
| Analog Supply Voltage | 2.7V to 3.6V |
| Digital Supply Voltage | 2.7V to 3.6V |
| Maximum Sampling Rate | 94.4ksps |
| Supply Current at Maximum Sampling Rate | 670µA |
| Supply Current at Low Throughput Rates | < 1µA (AutoShutdown™) |
| Internal Reference Voltage | 2.048V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 16-pin QSOP |
Key Features
- Low power consumption with AutoShutdown™ feature to reduce supply current to less than 1µA at low throughput rates.
- I²C-compatible 2-wire serial interface for easy communication.
- Internal track/hold (T/H), voltage reference, and clock for integrated functionality.
- Software configurable for unipolar or bipolar, and single-ended or differential operation.
- Full-scale analog input range determined by internal reference or externally applied reference voltage.
- High accuracy with internal 2.048V reference voltage.
Applications
The MAX1139MEEE+T is suitable for a variety of applications requiring multiple analog input channels, low power consumption, and high precision. These include:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, especially those requiring multiple sensor inputs.
- Consumer electronics with low power requirements.
Q & A
- What is the resolution of the MAX1139MEEE+T ADC?
The MAX1139MEEE+T has a 10-bit resolution.
- How many analog input channels does the MAX1139MEEE+T have?
The MAX1139MEEE+T has 12 analog input channels.
- What is the operating voltage range for the MAX1139MEEE+T?
The device operates from a single supply of 2.7V to 3.6V.
- What is the maximum sampling rate of the MAX1139MEEE+T?
The maximum sampling rate is 94.4ksps.
- How does the AutoShutdown™ feature work?
The AutoShutdown™ feature powers down the device between conversions, reducing the supply current to less than 1µA at low throughput rates.
- What is the internal reference voltage of the MAX1139MEEE+T?
The internal reference voltage is 2.048V.
- What is the operating temperature range of the MAX1139MEEE+T?
The device operates over the extended temperature range of -40°C to +85°C.
- In what package type is the MAX1139MEEE+T available?
The device is available in a 16-pin QSOP package.
- Can the MAX1139MEEE+T be configured for different input types?
Yes, the device can be software configured for unipolar or bipolar, and single-ended or differential operation.
- What communication interface does the MAX1139MEEE+T use?
The device uses an I²C-compatible 2-wire serial interface.
