Overview
The MAX145ACUA+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is available in an 8-pin µMAX package and is designed for applications requiring high performance, low power consumption, and compact size. The MAX145 operates with a single supply voltage ranging from +2.7V to +5.25V, making it suitable for a variety of battery-powered and data-acquisition systems.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12 bits | |
| Supply Voltage | +2.7V to +5.25V | |
| Power Consumption | 3.2mW (VDD = +3.6V, 108ksps) | |
| Sampling Rate | Up to 108ksps | |
| Input Type | Pseudo-differential | |
| Interface | SPI, QSPI, MICROWIRE-compatible 3-wire serial interface | |
| Package Type | 8-pin µMAX | |
| Power-Down Current | 0.2µA | |
| Wake-Up Time | 2.5µs |
Key Features
- Single-supply operation (+2.7V to +5.25V)
- Pseudo-differential input channel
- Low power consumption: 0.9mA (108ksps, +3V supply), 100µA (10ksps, +3V supply), 10µA (1ksps, +3V supply), and 0.2µA in power-down mode
- Internal track/hold circuit
- High-speed, SPI, QSPI, and MICROWIRE-compatible 3-wire serial interface
- Space-saving 8-pin µMAX package
- Fast wake-up time of 2.5µs
- Automatic power-down mode for reduced power consumption
Applications
The MAX145ACUA+ is ideal for various applications that require low power consumption and high performance, including:
- Battery-powered systems
- Data-acquisition systems
- Portable medical devices
- Industrial control systems
- Automotive systems
Q & A
- What is the resolution of the MAX145ACUA+ ADC?
The MAX145ACUA+ has a resolution of 12 bits.
- What is the supply voltage range for the MAX145ACUA+?
The supply voltage range is from +2.7V to +5.25V.
- What is the maximum sampling rate of the MAX145ACUA+?
The maximum sampling rate is up to 108ksps.
- What type of input does the MAX145ACUA+ accept?
The MAX145ACUA+ accepts pseudo-differential input signals.
- What interface does the MAX145ACUA+ use for data transfer?
The device uses a SPI, QSPI, and MICROWIRE-compatible 3-wire serial interface.
- How much power does the MAX145ACUA+ consume at maximum sampling rate?
The power consumption is 3.2mW at VDD = +3.6V and 108ksps sampling rate.
- What is the wake-up time from power-down mode?
The wake-up time is 2.5µs.
- What is the package type of the MAX145ACUA+?
The device is available in an 8-pin µMAX package.
- What are some typical applications for the MAX145ACUA+?
Typical applications include battery-powered systems, data-acquisition systems, portable medical devices, industrial control systems, and automotive systems.
- How does the MAX145ACUA+ reduce power consumption?
The device features automatic power-down mode, which reduces power consumption to 0.2µA.
