Overview
The MAX1138KEEE+ 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 high-speed, low-power ADCs with various configurations. The MAX1138KEEE+ operates from a single supply voltage and is designed for applications requiring high accuracy and low power consumption.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 4.5 | 5.5 | V | ||
| Internal Reference Voltage | 4.096 | 4.096 | V | ||
| Conversion Rate | 94.4 | ksps | |||
| Track/Hold Acquisition Time | 800 | ns | |||
| Current Consumption | 670 | µA | |||
| Operating Temperature Range | -40 | 85 | °C | ||
| I2C Interface Speed | 1.7 | MHz |
Key Features
- High-speed I2C-compatible serial interface with data rates up to 1.7MHz in fast mode and high-speed mode.
- Single-supply operation: 4.5V to 5.5V for MAX1138 and 2.7V to 3.6V for MAX1137/MAX1139.
- Internal track/hold, voltage reference, and clock.
- Support for single-ended or differential analog input operation.
- Internal reference voltage of 4.096V for MAX1138 and 2.048V for MAX1137/MAX1139, with the option to use an external reference from 1V to VDD.
- Low power consumption with typical current of 670µA at sampling rates up to 94.4ksps).
Applications
The MAX1138KEEE+ is suitable for a variety of applications that require precise analog-to-digital conversion with low power consumption. These include:
- Industrial automation and control systems.
- Medical devices requiring high accuracy and low power.
- Aerospace and defense applications where reliability and precision are critical.
- Automotive systems, especially those requiring robust and efficient ADCs.
- Consumer electronics that demand low power and high performance.
Q & A
- What is the supply voltage range for the MAX1138KEEE+?
The MAX1138KEEE+ operates from a single supply voltage of 4.5V to 5.5V.
- What is the internal reference voltage for the MAX1138KEEE+?
The internal reference voltage for the MAX1138KEEE+ is 4.096V).
- What is the maximum conversion rate of the MAX1138KEEE+?
The MAX1138KEEE+ can achieve a conversion rate of up to 94.4ksps).
- What is the track/hold acquisition time for the MAX1138KEEE+?
The track/hold acquisition time is 800ns).
- How much current does the MAX1138KEEE+ typically consume?
The device typically consumes 670µA at sampling rates up to 94.4ksps).
- What is the operating temperature range for the MAX1138KEEE+?
The operating temperature range is -40°C to +85°C).
- What type of serial interface does the MAX1138KEEE+ support?
The device supports a high-speed I2C-compatible serial interface with data rates up to 1.7MHz).
- Can the MAX1138KEEE+ be used with an external reference voltage?
- What package options are available for the MAX1138KEEE+?
The MAX1138KEEE+ is available in a 16-pin QSOP package).
- What are some typical applications for the MAX1138KEEE+?
Typical applications include industrial automation, medical devices, aerospace and defense, automotive systems, and consumer electronics).
