Overview
The MAX1138LEEE+ is a 10-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1136–MAX1139 series, known for their low power consumption and high-speed I2C-compatible serial interface. The MAX1138LEEE+ operates from a single supply voltage of 4.5V to 5.5V and features internal track/hold (T/H), voltage reference, and clock. It is designed for high-speed data acquisition and is suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10-bit |
| Number of Analog Input Channels | 12 |
| Supply Voltage Range | 4.5V to 5.5V |
| Maximum Sampling Rate | 94.4ksps |
| Supply Current at Maximum Sampling Rate | 670µA (typ) |
| Supply Current at Low Throughput Rates | <1µA |
| Internal Reference Voltage | 4.096V |
| External Reference Voltage Range | 1V to VDD |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 16-pin QSOP |
| I2C Serial Interface Speed | Up to 1.7MHz |
Key Features
- High-speed I2C-compatible serial interface supporting data rates up to 1.7MHz
- Single-supply operation with low power consumption
- Internal track/hold (T/H), voltage reference, and clock
- Fully differential analog inputs, software configurable for unipolar or bipolar, single-ended or differential operation
- AutoShutdown™ feature to reduce supply current to less than 1µA at low throughput rates
- Operating temperature range of -40°C to +85°C
Applications
- Medical Instruments
- Battery-Powered Test Equipment
- Solar-Powered Remote Systems
- Received-Signal-Strength Indicators
- System Supervision
- Data Acquisition Systems
Q & A
- What is the resolution of the MAX1138LEEE+ ADC?
The MAX1138LEEE+ has a resolution of 10 bits. - How many analog input channels does the MAX1138LEEE+ have?
The MAX1138LEEE+ has 12 analog input channels. - What is the supply voltage range for the MAX1138LEEE+?
The supply voltage range is 4.5V to 5.5V. - What is the maximum sampling rate of the MAX1138LEEE+?
The maximum sampling rate is 94.4ksps. - How much current does the MAX1138LEEE+ consume at maximum sampling rate?
The supply current at the maximum sampling rate is 670µA (typ). - What is the internal reference voltage of the MAX1138LEEE+?
The internal reference voltage is 4.096V. - What is the operating temperature range of the MAX1138LEEE+?
The operating temperature range is -40°C to +85°C. - What type of package does the MAX1138LEEE+ come in?
The MAX1138LEEE+ comes in a 16-pin QSOP package. - What is the speed of the I2C serial interface of the MAX1138LEEE+?
The I2C serial interface supports data rates up to 1.7MHz. - What is the AutoShutdown™ feature in the MAX1138LEEE+?
The AutoShutdown™ feature powers down the device between conversions, reducing supply current to less than 1µA at low throughput rates.
