Overview
The MAX11254ATJ+T, produced by Analog Devices Inc./Maxim Integrated, is a 6-channel, 24-bit delta-sigma analog-to-digital converter (ADC) that offers exceptional performance while consuming very low power. This ADC is designed for precision DC measurements with sample rates up to 64ksps. It communicates via a SPI serial interface and is packaged in a compact 5mm x 5mm TQFN-EP package. The MAX11254 is ideal for applications requiring high resolution and low noise, making it suitable for various industrial, automotive, and battery-powered instrumentation uses.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Number of bits | 24-bit |
| Number of Channels | Number of input channels | 6 |
| Sampling Rate | Maximum sampling rate | 64ksps |
| Input Channel Type | Type of input channels | Differential |
| Data Interface | Type of data interface | SPI, Microwire, QSPI |
| Supply Voltage Type | Type of supply voltage | Single (2.7V to 3.6V), Dual (±1.8V) |
| Operating Current | Typical operating current | 2.2mA |
| Operating Temperature Range | Temperature range for operation | -40°C to +125°C |
| Noise Performance | Noise level of the PGA | 6.2nV/√Hz |
| PGA Gain Settings | Gain settings of the PGA | 1x, 2x, 4x, 8x, 16x, 32x, 64x, 128x |
| Package Type | Type of package | TQFN-EP, 32 pins |
Key Features
- High Resolution and Low Noise: Achieves 133dB SNR at 50sps and 124dB SNR at 1000sps, making it suitable for industrial applications requiring a wide dynamic range.
- Low Power Consumption: Operates with a typical current of 2.2mA in operating mode and 1μA in sleep mode, extending battery life in portable applications.
- Flexible Supply Voltage: Supports single supply (2.7V to 3.6V) or split supply (±1.8V), allowing for input voltage range flexibility.
- Integrated PGA: Features a low-noise PGA with gain settings from 1x to 128x, enabling direct interface with high-impedance sources without compromising dynamic range.
- User-Programmable Offset and Gain Registers: Allows for on-demand device and system gain and offset calibration.
- Robust Performance in a Small Package: Operates over a temperature range of -40°C to +125°C and is packaged in a compact 5mm x 5mm TQFN-EP package.
Applications
- Analog I/O for Programmable Logic Controllers: Suitable for precision measurements in industrial control systems.
- Weigh Scales: High resolution and low noise make it ideal for weighing applications.
- Pressure Sensors: Used in pressure measurement systems requiring high accuracy and low noise.
- Battery-Powered Instrumentation: Low power consumption makes it suitable for battery-powered devices.
- Automotive: Used in various automotive applications due to its robust performance and wide operating temperature range.
Q & A
- What is the resolution of the MAX11254 ADC?
The MAX11254 ADC has a resolution of 24 bits.
- How many input channels does the MAX11254 have?
The MAX11254 has 6 input channels.
- What is the maximum sampling rate of the MAX11254?
The maximum sampling rate of the MAX11254 is 64ksps.
- What type of data interface does the MAX11254 use?
The MAX11254 uses SPI, Microwire, and QSPI data interfaces.
- What is the operating voltage range of the MAX11254?
The MAX11254 operates from a single supply of 2.7V to 3.6V or a split supply of ±1.8V.
- What is the noise performance of the PGA in the MAX11254?
The PGA in the MAX11254 has a noise level of 6.2nV/√Hz.
- What are the gain settings of the PGA in the MAX11254?
The PGA gain settings range from 1x to 128x.
- What is the typical operating current of the MAX11254?
The typical operating current of the MAX11254 is 2.2mA.
- What is the operating temperature range of the MAX11254?
The MAX11254 operates over a temperature range of -40°C to +125°C.
- What type of package is the MAX11254 available in?
The MAX11254 is available in a 5mm x 5mm TQFN-EP package.
