Overview
The MAX1238KEEE+T is a 12-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1236–MAX1239 family, known for their low power consumption and high-speed I²C-compatible serial interface. The MAX1238KEEE+T operates on a single supply voltage ranging from 4.5V to 5.5V and is available in a 16-pin QSOP package. It features internal track/hold, voltage reference, and clock, making it a versatile component for various analog-to-digital conversion applications.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12-bit | |
| Number of Analog Input Channels | 12 | |
| Supply Voltage Range | 4.5V to 5.5V | |
| Internal Reference Voltage | 4.096V | MAX1236/MAX1238 |
| External Reference Voltage Range | 1V to VDD | |
| Sampling Rate | Up to 94.4ksps | |
| Supply Current at Maximum Sampling Rate | 670µA | |
| Supply Current at Low Throughput Rates | < 1µA | AutoShutdown™ mode |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 16-pin QSOP |
Key Features
- High-Speed I²C-Compatible Serial Interface: Supports 400kHz Fast Mode and 1.7MHz High-Speed Mode
- Single-Supply Operation: 4.5V to 5.5V
- Internal Track/Hold, Voltage Reference, and Clock
- Software Configurable for Unipolar or Bipolar, and Single-Ended or Differential Operation
- AutoShutdown™: Powers down the device between conversions to reduce supply current
- Low Power Consumption: Less than 1µA in AutoShutdown™ mode at low throughput rates
Applications
The MAX1238KEEE+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
- Embedded Systems and IoT Devices
Q & A
- What is the resolution of the MAX1238KEEE+T ADC?
The MAX1238KEEE+T has a 12-bit resolution.
- How many analog input channels does the MAX1238KEEE+T have?
The MAX1238KEEE+T has 12 analog input channels.
- What is the supply voltage range for the MAX1238KEEE+T?
The supply voltage range is from 4.5V to 5.5V.
- What is the internal reference voltage of the MAX1238KEEE+T?
The internal reference voltage is 4.096V.
- What are the supported serial interface speeds for the MAX1238KEEE+T?
The device supports 400kHz Fast Mode and 1.7MHz High-Speed Mode.
- How does the AutoShutdown™ feature work?
The AutoShutdown™ feature powers down the device between conversions, reducing the supply current to less than 1µA at low throughput rates.
- What is the operating temperature range of the MAX1238KEEE+T?
The operating temperature range is from -40°C to +85°C.
- In what package is the MAX1238KEEE+T available?
The MAX1238KEEE+T is available in a 16-pin QSOP package.
- Can the MAX1238KEEE+T be configured for different input modes?
Yes, the device can be software configured for unipolar or bipolar, and single-ended or differential operation.
- What is the typical supply current at the maximum sampling rate?
The typical supply current at the maximum sampling rate is 670µA.
