Overview
The MAX1139LEEE+T is a low-power, 10-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1136–MAX1139 series, which features internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. The MAX1139LEEE+T operates from a single supply voltage of 2.7V to 3.6V and is designed for high-efficiency data acquisition.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Number of Input Channels | 12 |
| Input Type | Differential, Single Ended |
| Sampling Rate | Up to 94.4 ksps |
| Voltage Supply (Analog and Digital) | 2.7V to 3.6V |
| Operating Temperature | -40°C to +85°C |
| Package | 16-QSOP (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Reference Type | Internal (2.048V) and External |
| Data Interface | I²C |
Key Features
- Low power consumption: 670µA at maximum sampling rate and less than 1µA in AutoShutdown mode.
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface.
- 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.
- Internal oscillator for clock generation.
Applications
The MAX1139LEEE+T is suitable for various applications requiring high-speed, low-power data acquisition, such as:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, including sensor interfaces and data logging.
- Consumer electronics requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the MAX1139LEEE+T ADC?
The MAX1139LEEE+T has a resolution of 10 bits.
- How many analog input channels does the MAX1139LEEE+T have?
The MAX1139LEEE+T has 12 analog input channels.
- What is the operating voltage range for the MAX1139LEEE+T?
The operating voltage range is 2.7V to 3.6V.
- What is the maximum sampling rate of the MAX1139LEEE+T?
The maximum sampling rate is up to 94.4 ksps.
- What type of data interface does the MAX1139LEEE+T use?
The MAX1139LEEE+T uses an I²C-compatible 2-wire serial interface.
- What is the operating temperature range for the MAX1139LEEE+T?
The operating temperature range is -40°C to +85°C.
- What package type is the MAX1139LEEE+T available in?
The MAX1139LEEE+T is available in a 16-QSOP package.
- Does the MAX1139LEEE+T have an internal voltage reference?
Yes, the MAX1139LEEE+T features an internal voltage reference of 2.048V, as well as the option for an external reference voltage.
- How does the AutoShutdown feature work in the MAX1139LEEE+T?
The AutoShutdown feature powers down the device between conversions, reducing the supply current to less than 1µA at low throughput rates.
- Is the MAX1139LEEE+T suitable for high-speed data acquisition?
Yes, the MAX1139LEEE+T is designed for high-speed data acquisition with low power consumption.
