Overview
The MAX144ACPA+ 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, known for its high performance and low power consumption. It operates with a single supply voltage ranging from +2.7V to +5.25V and is available in 8-pin µMAX and DIP packages. The MAX144ACPA+ features a successive-approximation ADC with a conversion time of 7.4µs and an on-chip track-and-hold structure, making it suitable for various applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Supply Voltage | +2.7V to +5.25V | V |
| Number of Channels | 2 (single-ended) | - |
| Resolution | 12-bit | - |
| Sampling Rate | Up to 108ksps | ksps |
| Conversion Time | 7.4µs | µs |
| Power Consumption (at 108ksps, VDD = +3.6V) | 3.2mW | mW |
| Power Consumption (in Power-Down Mode) | 0.2µA | µA |
| Integral Nonlinearity | ±0.5 LSB | LSB |
| Package Type | 8-pin µMAX, DIP | - |
Key Features
- Single-supply operation from +2.7V to +5.25V
- Two single-ended channels (MAX144) or one pseudo-differential channel (MAX145)
- 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
- Automatic power-down and shutdown modes
- Space-saving 8-pin µMAX package
Applications
The MAX144ACPA+ is ideal for battery-powered devices, data-acquisition systems, and other applications where low power consumption and high performance are critical. It is particularly suited for:
- Battery-powered devices due to its low power consumption
- Data-acquisition systems requiring high-speed and accurate analog-to-digital conversion
- Circuits with demanding power and space requirements
Q & A
- What is the operating supply voltage range of the MAX144ACPA+?
The operating supply voltage range is from +2.7V to +5.25V.
- How many channels does the MAX144ACPA+ have?
The MAX144ACPA+ has two single-ended channels.
- What is the resolution of the MAX144ACPA+?
The resolution is 12-bit.
- What is the maximum sampling rate of the MAX144ACPA+?
The maximum sampling rate is up to 108ksps.
- What is the conversion time of the MAX144ACPA+?
The conversion time is 7.4µs.
- How much power does the MAX144ACPA+ consume at 108ksps with a 3.6V supply?
The power consumption is 3.2mW at 108ksps with a 3.6V supply.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 0.2µA.
- Is the MAX144ACPA+ compatible with SPI, QSPI, and MICROWIRE interfaces?
- What is the wake-up time of the MAX144ACPA+?
The wake-up time is 2.5µs.
- In what package types is the MAX144ACPA+ available?
The MAX144ACPA+ is available in 8-pin µMAX and DIP packages.
