Overview
The MAX144ACUA+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX144/MAX145 series and is available in an 8-pin µMAX package. It operates on a single supply voltage ranging from +2.7V to +5.25V, making it suitable for a variety of applications, especially those requiring low power consumption and compact design.
The MAX144ACUA+T features a successive-approximation ADC with an on-chip track-and-hold structure, enabling fast and accurate conversions. The device supports a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols, facilitating easy integration with microprocessors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | Up to 108ksps |
| Supply Voltage | +2.7V to +5.25V |
| Power Consumption | 3.2mW (VDD = +3.6V, 108ksps), 0.2µA (Power-Down Mode) |
| Conversion Time | 7.4µs |
| Wake-Up Time | 2.5µs |
| Input Channels | 2 single-ended channels (MAX144) |
| Interface | 3-wire serial interface (SPI, QSPI, MICROWIRE-compatible) |
| Package | 8-pin µMAX |
| Operating Temperature | 0°C to 70°C |
Key Features
- Single-supply operation (+2.7V to +5.25V)
- Low power consumption: 3.2mW at 108ksps, 0.2µA in power-down mode
- Internal track-and-hold structure
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- Fast wake-up time of 2.5µs
- Space-saving 8-pin µMAX package
- Automatic power-down and shutdown features
Applications
The MAX144ACUA+T is ideal for various applications that require low power consumption and high performance. These include:
- Battery-powered devices
- Data-acquisition systems
- Circuits with demanding power and space requirements
- Portable medical devices
- Industrial automation and control systems
Q & A
- What is the resolution of the MAX144ACUA+T ADC?
The MAX144ACUA+T has a 12-bit resolution.
- What is the maximum sampling rate of the MAX144ACUA+T?
The maximum sampling rate is up to 108ksps.
- What is the supply voltage range for the MAX144ACUA+T?
The supply voltage range is +2.7V to +5.25V.
- How much power does the MAX144ACUA+T consume at maximum sampling rate?
At the maximum sampling rate of 108ksps, the power consumption is 3.2mW (VDD = +3.6V).
- What is the wake-up time of the MAX144ACUA+T?
The wake-up time is 2.5µs.
- What type of serial interface does the MAX144ACUA+T use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- How many input channels does the MAX144ACUA+T have?
The MAX144ACUA+T has 2 single-ended input channels.
- What is the package type of the MAX144ACUA+T?
The device is available in an 8-pin µMAX package.
- What are the typical applications for the MAX144ACUA+T?
Typical applications include battery-powered devices, data-acquisition systems, and circuits with demanding power and space requirements.
- What is the operating temperature range of the MAX144ACUA+T?
The operating temperature range is 0°C to 70°C.
