Overview
The MAX1239LEEE+ 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 and is known for its high performance and versatility. The MAX1239 features an internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. It operates from a single supply voltage of 2.7V to 3.6V and is designed for applications requiring high-speed data conversion with low power consumption.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Number of Analog Input Channels | 12 |
| Supply Voltage Range | 2.7V to 3.6V |
| Maximum Sampling Rate | 94.4 ksps |
| Supply Current at Maximum Sampling Rate | 670 µA |
| Supply Current at Low Throughput Rates | < 1 µA (AutoShutdown™) |
| Internal Reference Voltage | 2.048V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 16-pin QSOP |
| I²C Interface Speeds | 400 kHz (Fast Mode), 1.7 MHz (High-Speed Mode) |
Key Features
- High-Speed I²C-Compatible Serial Interface: Supports Fast Mode (400 kHz) and High-Speed Mode (1.7 MHz)
- Single-Supply Operation: 2.7V to 3.6V or 4.5V to 5.5V for other models in the series
- Internal Voltage Reference: 2.048V for MAX1237/MAX1239 and 4.096V for MAX1236/MAX1238
- Software Configurable Analog Inputs: Unipolar or bipolar, single-ended or differential operation
- AutoShutdown™: Reduces supply current to less than 1 µA at low throughput rates
- Fully Differential Analog Inputs: With an analog-input multiplexer and track-and-hold (T/H) capacitor
Applications
The MAX1239LEEE+ is suitable for a variety of applications requiring precise and efficient analog-to-digital conversion. These include:
- Industrial Automation: For monitoring and controlling industrial processes.
- Medical Devices: For precise measurement in medical equipment.
- Aerospace and Defense: For high-reliability and low-power data acquisition systems.
- Automotive Systems: For sensor data acquisition and monitoring in vehicles.
- Consumer Electronics: For applications requiring low power consumption and high accuracy.
Q & A
- What is the resolution of the MAX1239LEEE+ ADC?
The MAX1239LEEE+ has a resolution of 12 bits.
- How many analog input channels does the MAX1239LEEE+ have?
The MAX1239LEEE+ has 12 analog input channels.
- What is the supply voltage range for the MAX1239LEEE+?
The supply voltage range is 2.7V to 3.6V.
- What is the maximum sampling rate of the MAX1239LEEE+?
The maximum sampling rate is 94.4 ksps.
- How much current does the MAX1239LEEE+ consume at maximum sampling rate?
The device consumes 670 µA at the maximum sampling rate.
- What is the internal reference voltage of the MAX1239LEEE+?
The internal reference voltage is 2.048V.
- What are the operating temperature ranges for the MAX1239LEEE+?
The operating temperature range is -40°C to +85°C.
- What package type is the MAX1239LEEE+ available in?
The device is available in a 16-pin QSOP package.
- Does the MAX1239LEEE+ support high-speed I²C interface?
Yes, it supports both Fast Mode (400 kHz) and High-Speed Mode (1.7 MHz).
- What is the purpose of AutoShutdown™ in the MAX1239LEEE+?
AutoShutdown™ reduces supply current to less than 1 µA at low throughput rates.
