Overview
The MAX11254ATJ/V+ is a high-performance, 6-channel, 24-bit delta-sigma analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This component is renowned for its exceptional performance and very low power consumption, making it ideal for precision DC measurements. The MAX11254 communicates via a SPI serial interface and is packaged in a compact 5mm x 5mm TQFN package.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 6 |
| Resolution | 24-bit |
| Sample Rate | Up to 64ksps |
| Noise (PGA) | 6.2nV/√Hz |
| Programmable Gain Amplifier (PGA) Gain Settings | 1x to 128x |
| Analog Supply Voltage | 2.7V to 3.6V (single) or ±1.8V (split) |
| Digital Supply Voltage | 1.7V to 2.0V or 2.0V to 3.6V |
| Package Type | 5mm x 5mm TQFN |
Key Features
- Low Power Consumption: The MAX11254 achieves exceptional performance while consuming very low power, making it suitable for power-sensitive applications.
- High Precision: With a 24-bit resolution and a sample rate of up to 64ksps, this ADC is ideal for precision DC measurements.
- Programmable Gain Amplifier (PGA): The integrated PGA offers gain settings from 1x to 128x and provides isolation of the signal inputs from the switched capacitor sampling network, enabling direct interface with high-impedance sources without compromising dynamic range.
- Flexible Supply Voltages: The ADC operates from a single 2.7V to 3.6V analog supply or split ±1.8V analog supplies, and the digital supply range is 1.7V to 2.0V or 2.0V to 3.6V, allowing communication with various logic levels.
- SPI Interface: Communication is facilitated via a SPI serial interface.
Applications
The MAX11254 is versatile and can be used in various applications, including:
- Precision DC Measurements: Ideal for applications requiring high accuracy and low noise.
- Automotive Touch-Screen Sensing: The high precision and low power consumption make it suitable for automotive touch-screen sensing applications.
- Industrial Automation: Suitable for industrial automation where precise and reliable data acquisition is necessary.
- Medical Devices: Can be used in medical devices that require high precision and low noise ADCs.
Q & A
- What is the resolution of the MAX11254 ADC?
The MAX11254 has a 24-bit resolution.
- What is the maximum sample rate of the MAX11254?
The maximum sample rate is up to 64ksps.
- What are the gain settings of the PGA in the MAX11254?
The PGA gain settings range from 1x to 128x.
- What are the analog and digital supply voltage ranges for the MAX11254?
The analog supply voltage range is 2.7V to 3.6V (single) or ±1.8V (split), and the digital supply voltage range is 1.7V to 2.0V or 2.0V to 3.6V.
- What type of interface does the MAX11254 use for communication?
The MAX11254 communicates via a SPI serial interface.
- What is the package type of the MAX11254?
The MAX11254 is packaged in a 5mm x 5mm TQFN package.
- What are some typical applications of the MAX11254?
Typical applications include precision DC measurements, automotive touch-screen sensing, industrial automation, and medical devices.
- How does the PGA in the MAX11254 benefit the ADC's performance?
The PGA provides isolation of the signal inputs from the switched capacitor sampling network and enables direct interface with high-impedance sources without compromising dynamic range.
- Is there an evaluation kit available for the MAX11254?
Yes, an evaluation kit (EV kit) is available for the MAX11254, which includes a graphical user interface (GUI) and various software tools for evaluating the ADC's features.
- What software compatibility does the MAX11254 EV kit offer?
The EV kit includes Windows XP, Windows 7, and Windows 8.1-compatible software.
