Overview
The MAX1137EUA+ 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. It is designed for applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Converter Resolution | 10-bit |
| Sampling Speed | 94.4 ksps |
| Case | µMAX8 |
| Mounting | SMD |
| Interface | I²C |
| Operating Temperature | -40°C to +85°C |
| Operating Voltage | 2.7V to 3.6V |
| Operating Current | 0.67 mA (max sampling rate), < 1 µA (low throughput) |
| Relative Accuracy | 1 LSB |
| Internal Reference Voltage | 2.048V |
Key Features
- Low power consumption with AutoShutdown™ feature, reducing supply current to less than 1 µA at low throughput rates.
- Software configurable for unipolar or bipolar, and single-ended or differential operation.
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface.
- Full-scale analog input range determined by the internal reference or an externally applied reference voltage.
- Available in an 8-pin µMAX package.
Applications
The MAX1137EUA+ is suitable for various applications that require low power consumption and high precision, such as:
- Portable battery-powered data-acquisition systems.
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Automotive systems where low power and reliability are crucial.
Q & A
- What is the resolution of the MAX1137EUA+ ADC?
The MAX1137EUA+ has a 10-bit resolution. - How many analog input channels does the MAX1137EUA+ have?
The MAX1137EUA+ has 4 analog input channels. - What is the maximum sampling rate of the MAX1137EUA+?
The maximum sampling rate is 94.4 ksps. - What is the operating voltage range of the MAX1137EUA+?
The operating voltage range is 2.7V to 3.6V. - What interface does the MAX1137EUA+ use for communication?
The MAX1137EUA+ uses an I²C-compatible 2-wire serial interface. - What is the typical operating current of the MAX1137EUA+ at maximum sampling rate?
The typical operating current at the maximum sampling rate is 0.67 mA. - How does the AutoShutdown™ feature work?
The AutoShutdown™ feature powers down the device between conversions, reducing supply current to less than 1 µA at low throughput rates. - What is the temperature range for the MAX1137EUA+?
The device operates over the temperature range of -40°C to +85°C. - Can the analog input channels be configured?
Yes, the analog input channels can be software configured for unipolar or bipolar, and single-ended or differential operation. - What is the internal reference voltage of the MAX1137EUA+?
The internal reference voltage is 2.048V.
