Overview
The MAX145ACPA is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc., now part of Maxim Integrated. This device is available in an 8-pin µMAX® or DIP package and is designed for applications requiring high performance and low power consumption. The MAX145ACPA operates with a single +2.7V to +5.25V supply and features a successive-approximation ADC with a conversion time of 7.4µs. It also includes automatic power-down, fast wake-up, an on-chip clock, and a high-speed, 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 1 (pseudo-differential) |
| Supply Voltage | +2.7V to +5.25V |
| Conversion Time | 7.4µs |
| Sampling Rate | Up to 108ksps |
| Power Consumption | 3.2mW (VDD = +3.6V) |
| Power-Down Current | 0.2µA |
| Wake-Up Time | 2.5µs |
| Interface | 3-wire serial (SPI™, QSPI™, MICROWIRE™ compatible) |
| Package | 8-pin µMAX®, DIP |
Key Features
- Low power consumption with automatic power-down and fast wake-up.
- High-speed, 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols.
- Pseudo-differential input capability, allowing for differential signal processing.
- On-chip clock and high-speed successive-approximation ADC.
- Excellent dynamic performance and low power consumption.
Applications
- Industrial control and automation systems.
- Medical devices requiring precise analog-to-digital conversion.
- Portable electronics and battery-powered devices due to low power consumption.
- Aerospace and defense applications where high reliability and low power are critical.
- Automotive systems, including sensor interfaces and data acquisition.
Q & A
- What is the resolution of the MAX145ACPA ADC?
The MAX145ACPA has a 12-bit resolution. - How many channels does the MAX145ACPA support?
The MAX145ACPA supports one pseudo-differential channel. - What is the supply voltage range for the MAX145ACPA?
The supply voltage range is +2.7V to +5.25V. - What is the conversion time of the MAX145ACPA?
The conversion time is 7.4µs. - What is the maximum sampling rate of the MAX145ACPA?
The maximum sampling rate is up to 108ksps. - How much power does the MAX145ACPA consume at maximum sampling rate?
The power consumption is 3.2mW at VDD = +3.6V. - What is the power-down current of the MAX145ACPA?
The power-down current is 0.2µA. - What is the wake-up time of the MAX145ACPA?
The wake-up time is 2.5µs. - What type of interface does the MAX145ACPA use?
The MAX145ACPA uses a 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols. - In what packages is the MAX145ACPA available?
The MAX145ACPA is available in 8-pin µMAX® and DIP packages.
