Overview
The MAX1139KEEE+ 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 family, which features internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. The MAX1139KEEE+ operates from a single supply voltage of 2.7V to 3.6V and is designed for high precision and low power consumption, making it suitable for a variety of applications requiring accurate analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Number of Input Channels | 12 |
| Input Type | Differential, Single Ended |
| Architecture | SAR (Successive Approximation Register) |
| Configuration | MUX-S/H-ADC |
| Sampling Rate | Up to 94.4 ksps |
| Supply Voltage | 2.7V to 3.6V |
| Supply Current | 670µA at maximum sampling rate, < 1µA in AutoShutdown mode |
| Operating Temperature | -40°C to +85°C |
| Package | 16-QSOP |
| Data Interface | I²C-compatible 2-wire serial interface |
| Reference Type | Internal (2.048V) and External |
Key Features
- Low power consumption with AutoShutdown™ feature to reduce supply current to less than 1µA at low throughput rates.
- Internal track/hold (T/H), voltage reference, and clock for simplified system design.
- I²C-compatible 2-wire serial interface for easy communication.
- 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.
- Compact 16-QSOP package for easy integration into systems.
Applications
The MAX1139KEEE+ is suitable for various applications that require precise and low-power analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices requiring high accuracy and low power consumption.
- Aerospace and defense systems where reliability and precision are critical.
- Automotive systems, especially those requiring robust and low-power ADCs.
- Data acquisition systems in scientific and research environments.
Q & A
- What is the maximum sampling rate of the MAX1139KEEE+?
The maximum sampling rate of the MAX1139KEEE+ is up to 94.4 ksps.
- What are the supply voltage ranges for the MAX1139KEEE+?
The MAX1139KEEE+ operates from a single supply voltage of 2.7V to 3.6V.
- How many analog input channels does the MAX1139KEEE+ have?
The MAX1139KEEE+ has 12 analog input channels.
- What is the architecture of the MAX1139KEEE+ ADC?
The MAX1139KEEE+ uses a Successive Approximation Register (SAR) architecture.
- What is the operating temperature range of the MAX1139KEEE+?
The operating temperature range is -40°C to +85°C.
- What type of package is the MAX1139KEEE+ available in?
The MAX1139KEEE+ is available in a 16-QSOP package.
- Does the MAX1139KEEE+ have an internal voltage reference?
Yes, the MAX1139KEEE+ features a 2.048V internal voltage reference and also supports an externally applied reference voltage.
- What is the power consumption of the MAX1139KEEE+ at maximum sampling rate?
The supply current is 670µA at the maximum sampling rate.
- How does the AutoShutdown™ feature work in the MAX1139KEEE+?
The AutoShutdown™ feature powers down the device between conversions, reducing the supply current to less than 1µA at low throughput rates.
- What type of data interface does the MAX1139KEEE+ use?
The MAX1139KEEE+ uses an I²C-compatible 2-wire serial interface.
