Overview
The MAX1239KEEE+T is a low-power, 12-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device features an internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. It is designed for high-speed and low-power applications, making it suitable for a variety of industrial and consumer electronics.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Converters | 1 Converter |
| Number of Inputs | 12 |
| Input Type | Differential, Single-Ended |
| Operating Supply Voltage | 2.7 V to 3.6 V |
| Sampling Rate | 94.4 ksps |
| Resolution | 12-bit |
| Internal Reference Voltage | 2.048 V |
| Integral Nonlinearity (INL) | +/- 1 LSB |
| Package Type | 16-pin QSOP |
| Operating Temperature Range | -40°C to +85°C |
| Power Dissipation | 666.7 mW (typical) |
Key Features
- High-Speed I²C-Compatible Serial Interface: Supports 400kHz Fast Mode and 1.7MHz High-Speed Mode.
- Single-Supply Operation: 2.7V to 3.6V for MAX1237/MAX1239 and 4.5V to 5.5V for MAX1236/MAX1238.
- Internal Reference: 2.048V for MAX1237/MAX1239 and 4.096V for MAX1236/MAX1238, with an external reference option from 1V to VDD.
- AutoShutdown™: Powers down the device between conversions, reducing supply current to less than 1µA at low throughput rates.
- Fully Differential Analog Inputs: Software configurable for unipolar or bipolar, and single-ended or differential operation.
- Low Power Consumption: Consumes 670µA at maximum sampling rate and falls below 230µA for sampling rates under 46ksps.
Applications
The MAX1239KEEE+T is versatile and can be used in various applications, including:
- Industrial Automation: For data acquisition and control systems.
- Medical Devices: For monitoring and diagnostic equipment.
- Consumer Electronics: For audio and video processing, and other multimedia applications.
- Aerospace and Defense: For high-reliability data conversion in harsh environments.
- Automotive Systems: For sensor data acquisition and processing.
Q & A
- What is the resolution of the MAX1239KEEE+T ADC?
The MAX1239KEEE+T has a resolution of 12 bits. - What are the operating supply voltage ranges for the MAX1239KEEE+T?
The operating supply voltage ranges are 2.7V to 3.6V for MAX1237/MAX1239 and 4.5V to 5.5V for MAX1236/MAX1238. - What is the maximum sampling rate of the MAX1239KEEE+T?
The maximum sampling rate is 94.4 ksps. - What types of analog inputs does the MAX1239KEEE+T support?
The device supports both single-ended and differential analog inputs. - What is the internal reference voltage for the MAX1239KEEE+T?
The internal reference voltage is 2.048 V. - How does the AutoShutdown™ feature work?
The AutoShutdown™ feature powers down the device between conversions, reducing supply current to less than 1µA at low throughput rates. - What is the operating temperature range for the MAX1239KEEE+T?
The operating temperature range is -40°C to +85°C. - What package types are available for the MAX1239KEEE+T?
The device is available in a 16-pin QSOP package. - What is the typical power dissipation of the MAX1239KEEE+T?
The typical power dissipation is 666.7 mW. - What serial interface modes does the MAX1239KEEE+T support?
The device supports standard mode, fast mode (400kHz), and high-speed mode (1.7MHz) I²C-compatible serial interface.
