Overview
The MAX1239LEEE+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 operates from a single supply voltage of 2.7V to 3.6V and is designed for high-performance and low-power applications.
The MAX1239 is part of the MAX1236–MAX1239 family, which includes various configurations of analog input channels and supply voltages. The MAX1239 specifically has 12 analog input channels and is available in a 16-pin QSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Analog Input Channels | 12 |
| Supply Voltage | 2.7V to 3.6V |
| Supply Current at Maximum Sampling Rate | 670µA (typ) at 94.4ksps |
| Supply Current at Low Throughput Rates | < 1µA in AutoShutdown™ mode |
| Internal Reference Voltage | 2.048V |
| External Reference Voltage Range | 1V to VDD |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 16-pin QSOP |
| I²C Serial Interface Speeds | 400kHz Fast Mode, 1.7MHz High-Speed Mode |
Key Features
- High-Speed I²C-Compatible Serial Interface with 400kHz Fast Mode and 1.7MHz High-Speed Mode
- Single-Supply Operation: 2.7V to 3.6V
- Internal Reference Voltage: 2.048V (configurable for external reference from 1V to VDD)
- Low Power Consumption: 670µA at maximum sampling rate, less than 1µA in AutoShutdown™ mode
- Fully Differential Analog Inputs, Software Configurable for Unipolar or Bipolar, Single-Ended or Differential Operation
- AutoShutdown™ Feature for Reduced Power Consumption Between Conversions
Applications
The MAX1239LEEE+T is suitable for a variety of applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Industrial Automation and Control Systems
- Medical Devices and Diagnostic Equipment
- Aerospace and Defense Systems
- Automotive Systems and Sensors
- Data Acquisition Systems
Q & A
- What is the resolution of the MAX1239LEEE+T ADC?
The MAX1239LEEE+T has a 12-bit resolution.
- How many analog input channels does the MAX1239LEEE+T have?
The MAX1239LEEE+T has 12 analog input channels.
- What is the supply voltage range for the MAX1239LEEE+T?
The supply voltage range is 2.7V to 3.6V.
- What is the typical supply current at the maximum sampling rate?
The typical supply current at the maximum sampling rate of 94.4ksps is 670µA.
- What is the AutoShutdown™ feature and how does it reduce power consumption?
The AutoShutdown™ feature powers down the device between conversions, reducing supply current to less than 1µA at low throughput rates.
- What are the available I²C serial interface speeds for the MAX1239LEEE+T?
The available I²C serial interface speeds are 400kHz Fast Mode and 1.7MHz High-Speed Mode.
- What is the internal reference voltage of the MAX1239LEEE+T?
The internal reference voltage is 2.048V.
- Can the MAX1239LEEE+T be configured for external reference voltage?
Yes, the MAX1239LEEE+T can be configured for an external reference voltage ranging from 1V to VDD.
- What is the operating temperature range of the MAX1239LEEE+T?
The operating temperature range is -40°C to +85°C.
- In what package type is the MAX1239LEEE+T available?
The MAX1239LEEE+T is available in a 16-pin QSOP package.
