Overview
The MAX1238EEE/V+ is a low-power, 12-channel, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates from a single supply voltage of 4.5V to 5.5V and features an I²C-compatible 2-wire serial interface. It is designed for applications requiring high accuracy and low power consumption, making it suitable for a variety of industrial, medical, and portable devices. The ADC includes internal track/hold (T/H), voltage reference, and clock, and it supports both unipolar and bipolar, as well as single-ended and differential analog input configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 12 |
| Supply Voltage | 4.5V to 5.5V |
| Maximum Sampling Rate | 94.4 ksps |
| Interface | I²C-compatible 2-wire serial |
| Package Type | 16-pin QSOP |
| Operating Temperature Range | -40°C to 85°C |
| Internal Reference Voltage | 4.096V |
| Power Consumption at Max Sampling Rate | 670 µA |
| Power Consumption at Low Throughput Rates | < 1 µA (AutoShutdown) |
Key Features
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface with support for standard, fast, and high-speed modes.
- Software configurable for unipolar or bipolar, and single-ended or differential analog input operation.
- Full-scale analog input range determined by the internal reference or an externally applied reference voltage (1V to VDD).
- Low power consumption: 670 µA at maximum sampling rate and less than 1 µA in AutoShutdown mode.
- Internal FIFO with channel scan mode.
- Operating temperature range from -40°C to 85°C.
Applications
- Medical instruments.
- Battery-powered test equipment.
- Solar-powered remote systems.
- Received signal-strength indicators.
- System supervision and monitoring.
- Industrial and signal processing applications.
- Portable devices requiring low power consumption and high accuracy.
Q & A
- What is the resolution of the MAX1238EEE/V+ ADC?
The MAX1238EEE/V+ has a resolution of 12 bits.
- How many analog input channels does the MAX1238EEE/V+ have?
The MAX1238EEE/V+ has 12 analog input channels.
- What is the supply voltage range for the MAX1238EEE/V+?
The supply voltage range is from 4.5V to 5.5V.
- What is the maximum sampling rate of the MAX1238EEE/V+?
The maximum sampling rate is 94.4 ksps.
- What type of interface does the MAX1238EEE/V+ use?
The MAX1238EEE/V+ uses an I²C-compatible 2-wire serial interface.
- What is the package type of the MAX1238EEE/V+?
The package type is 16-pin QSOP.
- What is the operating temperature range of the MAX1238EEE/V+?
The operating temperature range is from -40°C to 85°C.
- What is the internal reference voltage of the MAX1238EEE/V+?
The internal reference voltage is 4.096V.
- How much power does the MAX1238EEE/V+ consume at maximum sampling rate?
The power consumption at the maximum sampling rate is 670 µA.
- What is the power consumption in AutoShutdown mode?
In AutoShutdown mode, the power consumption is less than 1 µA.
