Overview
The MAX1237KEUA+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 and is designed for high-performance and low-power applications. It features an internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. The MAX1237KEUA+T operates from a single supply of 2.7V to 3.6V and is available in an 8-pin µMAX® package.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 4 | |
| Supply Voltage | 2.7V to 3.6V | |
| Internal Reference Voltage | 2.048V | |
| External Reference Voltage Range | 1V to VDD | |
| Sampling Rate | Up to 94.4ksps | |
| Supply Current | 670µA (typ) at 94.4ksps, < 1µA in AutoShutdown™ | |
| Temperature Range | -40°C to +85°C | |
| Package | 8-pin µMAX® | |
| Serial Interface | I²C-compatible, 400kHz Fast Mode, 1.7MHz High-Speed Mode |
Key Features
- High-speed I²C-compatible serial interface with 400kHz Fast Mode and 1.7MHz High-Speed Mode
- Single-supply operation from 2.7V to 3.6V
- Internal 2.048V reference voltage, or external reference from 1V to VDD
- AutoShutdown™ feature to reduce supply current to less than 1µA at low throughput rates
- Fully differential analog inputs, software configurable for unipolar or bipolar, and single-ended or differential operation
- Low power consumption with 670µA (typ) at maximum sampling rate
Applications
- Data-acquisition systems
- Industrial control systems
- Patient monitoring systems
- Data logging and instrumentation
- Other applications requiring low-power, high-precision ADCs
Q & A
- What is the resolution of the MAX1237KEUA+T ADC?
The MAX1237KEUA+T has a 12-bit resolution.
- How many analog input channels does the MAX1237KEUA+T have?
The MAX1237KEUA+T has 4 analog input channels.
- What is the supply voltage range for the MAX1237KEUA+T?
The supply voltage range is from 2.7V to 3.6V.
- What is the internal reference voltage of the MAX1237KEUA+T?
The internal reference voltage is 2.048V.
- Can the MAX1237KEUA+T use an external reference voltage?
- What is the maximum sampling rate of the MAX1237KEUA+T?
The maximum sampling rate is up to 94.4ksps.
- How much current does the MAX1237KEUA+T consume at maximum sampling rate?
The device consumes 670µA (typ) at the maximum sampling rate.
- What is the temperature range for the MAX1237KEUA+T?
The temperature range is from -40°C to +85°C.
- In what package is the MAX1237KEUA+T available?
The MAX1237KEUA+T is available in an 8-pin µMAX® package.
- What type of serial interface does the MAX1237KEUA+T use?
The MAX1237KEUA+T uses an I²C-compatible 2-wire serial interface.
