Overview
The MAX1138KEEE+T is a low-power, 10-bit, 12-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1136–MAX1139 family, known for their high precision and low power consumption. The MAX1138KEEE+T features an internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface, making it suitable for a variety of applications requiring multiple analog input channels.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 12 |
| Resolution | 10-bit |
| Sampling Rate | 94.4 ksps |
| Data Interface | I²C (2-wire serial) |
| Analog Supply Voltage | 4.5V to 5.5V |
| Digital Supply Voltage | 4.5V to 5.5V |
| Input Type | Differential, Single-Ended |
| Input Range | ±2.048V (with internal reference), configurable with external reference |
| Operating Temperature | -40°C to +85°C |
| Package Type | 16-Pin QSOP |
| Power Consumption | 670µA at maximum sampling rate, <1µA in AutoShutdown™ mode |
Key Features
- Low power consumption with AutoShutdown™ feature to reduce supply current to less than 1µA at low throughput rates.
- Internal track/hold (T/H), voltage reference, and clock.
- I²C-compatible 2-wire serial interface for easy communication.
- Software configurable for unipolar or bipolar, and single-ended or differential operation.
- Full-scale analog input range determined by internal reference or externally applied reference voltage.
- Guaranteed over the extended temperature range (-40°C to +85°C).
Applications
The MAX1138KEEE+T is suitable for various applications requiring multiple analog input channels, such as:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, though not specifically automotive qualified.
- General-purpose data acquisition systems.
Q & A
- What is the resolution of the MAX1138KEEE+T ADC?
The MAX1138KEEE+T has a 10-bit resolution.
- How many analog input channels does the MAX1138KEEE+T have?
The MAX1138KEEE+T has 12 analog input channels.
- What is the sampling rate of the MAX1138KEEE+T?
The sampling rate of the MAX1138KEEE+T is up to 94.4 ksps.
- What type of data interface does the MAX1138KEEE+T use?
The MAX1138KEEE+T uses an I²C-compatible 2-wire serial interface.
- What is the operating temperature range of the MAX1138KEEE+T?
The operating temperature range is -40°C to +85°C.
- What is the power consumption of the MAX1138KEEE+T at maximum sampling rate?
The power consumption is 670µA at the maximum sampling rate.
- Does the MAX1138KEEE+T have an internal voltage reference?
- Can the input type of the MAX1138KEEE+T be configured?
- What package type is the MAX1138KEEE+T available in?
The MAX1138KEEE+T is available in a 16-Pin QSOP package.
- Is the MAX1138KEEE+T automotive qualified?
No, the MAX1138KEEE+T is not specifically automotive qualified.
