Overview
The MAX1111EEE+ is a low-power, 8-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1110/MAX1111 family, known for its high performance and low power consumption. The MAX1111 features 4 analog inputs, which are software-configurable to support unipolar/bipolar and single-ended/differential operation. It operates from a single 2.7V to 5.5V supply and is designed to interface directly with 3V microprocessors.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Analog Inputs | 4 |
| Resolution | 8-bit |
| Supply Voltage Range | 2.7V to 5.5V |
| Power Consumption (Sampling at 50ksps) | 85µA |
| Conversion Rate | Up to 50ksps |
| Internal Reference Voltage | 2.048V |
| External Reference Voltage Range | 1V to VDD |
| Operating Temperature Range | -40°C to +85°C (MAX1111EGE) |
| Package Type | 16-pin QSOP |
| Serial Interface Compatibility | SPI™, QSPI™, and MICROWIRE™ |
Key Features
- Internal track/hold, voltage reference, and clock.
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
- Successive-approximation conversions using internal or external clock.
- 4-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ standards.
- Serial-strobe output for end-of-conversion signal.
- Automatic power-down mode reducing supply current to 6µA at 1ksps.
- Active-low SHDN input pin for power-down control.
Applications
The MAX1111EEE+ is suitable for various data-acquisition systems, particularly those requiring low power consumption and high precision. It is often used in applications such as industrial control systems, medical devices, and automotive systems where multiple analog inputs need to be converted to digital signals efficiently.
The evaluation system for the MAX1110/MAX1111, which includes an evaluation kit and a microcontroller module, is designed to comprehensively evaluate the device's features in a personal computer setup.
Q & A
- What is the supply voltage range for the MAX1111EEE+?
The MAX1111EEE+ operates from a single 2.7V to 5.5V supply. - How many analog inputs does the MAX1111EEE+ have?
The MAX1111EEE+ has 4 analog inputs. - What is the resolution of the MAX1111EEE+?
The resolution of the MAX1111EEE+ is 8-bit. - What is the maximum conversion rate of the MAX1111EEE+?
The MAX1111EEE+ can sample at rates up to 50ksps. - What is the internal reference voltage of the MAX1111EEE+?
The internal reference voltage is 2.048V. - Can the MAX1111EEE+ operate in both unipolar and bipolar modes?
Yes, the MAX1111EEE+ can operate in both unipolar and bipolar modes, as well as single-ended and differential modes. - What serial interface standards is the MAX1111EEE+ compatible with?
The MAX1111EEE+ is compatible with SPI™, QSPI™, and MICROWIRE™ serial-interface standards. - How does the power-down mode work on the MAX1111EEE+?
The MAX1111EEE+ has a software-programmable, 2µA automatic power-down mode. The supply current is reduced to 6µA at 1ksps, and power-down can also be controlled using the active-low SHDN input pin. - What is the operating temperature range for the MAX1111EGE?
The operating temperature range for the MAX1111EGE is -40°C to +85°C. - In what package type is the MAX1111EEE+ available?
The MAX1111EEE+ is available in a 16-pin QSOP package.
