Overview
The MAX1238EEE/V+T 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, which features internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. The MAX1238 is designed for high-performance and low-power applications, making it suitable for a variety of industrial, medical, and consumer electronics uses.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12 bits | |
| Number of Channels | 12 channels | |
| Supply Voltage | 4.5V to 5.5V | |
| Internal Reference Voltage | 4.096V | |
| External Reference Voltage Range | 1V to VDD | |
| Sampling Rate | Up to 94.4ksps | |
| Supply Current | 670µA (typ) at 94.4ksps, < 1µA in AutoShutdown™ | |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 16-pin QSOP | |
| I²C Interface Speeds | Standard mode (S-Mode), Fast mode (F-Mode), High-Speed mode (HS-Mode) |
Key Features
- High-Speed I²C-Compatible Serial Interface with speeds up to 1.7MHz in High-Speed Mode
- Single-Supply Operation: 4.5V to 5.5V
- Internal Reference: 4.096V (MAX1236/MAX1238) or external reference from 1V to VDD
- AutoShutdown™ for low power consumption between conversions
- Fully Differential Analog Inputs, software configurable for unipolar or bipolar, and single-ended or differential operation
- Low Power Consumption: 670µA at maximum sampling rate, less than 1µA in AutoShutdown™
Applications
The MAX1238 is suitable for a variety of applications including:
- Industrial Automation and Control Systems
- Medical Devices and Diagnostic Equipment
- Consumer Electronics such as Audio and Video Equipment
- Data Acquisition Systems
- Environmental Monitoring and Sensing
Q & A
- What is the resolution of the MAX1238 ADC?
The MAX1238 has a resolution of 12 bits.
- How many analog input channels does the MAX1238 have?
The MAX1238 has 12 analog input channels.
- What is the supply voltage range for the MAX1238?
The supply voltage range for the MAX1238 is 4.5V to 5.5V.
- What is the internal reference voltage of the MAX1238?
The internal reference voltage of the MAX1238 is 4.096V.
- Can the MAX1238 operate with an external reference voltage?
- What is the maximum sampling rate of the MAX1238?
The maximum sampling rate of the MAX1238 is up to 94.4ksps.
- How much power does the MAX1238 consume at maximum sampling rate?
The MAX1238 consumes 670µA (typ) at the maximum sampling rate of 94.4ksps.
- What is the operating temperature range of the MAX1238?
The operating temperature range of the MAX1238 is -40°C to +85°C.
- In what package type is the MAX1238 available?
The MAX1238 is available in a 16-pin QSOP package.
- Does the MAX1238 support different I²C interface speeds?
