MAX1246AEEE

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Data Acquisition - Analog to Digital Converters (ADC) is a vital technology for many applications including medical, automotive and industrial fields. The MAX1246AEEE is a high speed, low power Analog to Digital Converter that is employed in analog signal applications. It has a simple architecture and possesses high conversion accuracy and low power consumption.

The MAX1246AEEE is a high speed 16-bit 8-channel synchronous sampling Analogue to Digital Converter. The ADC has a single supply operation and can sample signals over a wide dynamic range of 0 to 3V. The device is available in a compact 32-pin 4-mm × 4-mm standard TQFN package which makes it suitable for compact applications.

The main features of MAX1246AEEE are:

• Maximum sampling rate of 160Msps
• Low power consumption of 11 m W at 160 Msps
• Single 3V supplies
• No external reference is required
• Integrated anti-aliasing filters for low noise applications
• On-chip selectable source-impedance and sample-and-hold circuitries

With its wide range of power options, the MAX1246AEEE can be suited to a range of applications including biomedical, test and measurement, military, audio, and multimedia. In addition, the device has an on-chip 9-bit digital-to-analog converter (DAC) and on-chip offset and gain calibration. This calibration ensures accurate performance over the temperature range while minimising the need for external components.

In a typical application, the MAX1246AEEE will be interfaced with other devices such as a microcontroller for up to 8 channels. The ADC’s outputs are directly compatible with 8-bit/16-bit microcontrollers. The device is also capable of multiple channel (dual edge triggered) and parallel read operations. The ADC also features a selectable source-impedance circuitry which can be used for suppressing system noise and for low power operation.

The MAX1246AEEE utilises a differential sample-and-hold, which has the ability to sample and hold electrical signals from a wide range of sources. The differential sample-and-hold architecture has a high common-mode rejection ratio and allows the device to accurately measure signals over a wide dynamic range. By combining the wide dynamic range and high sampling rate, the device can accurately measure and interpret signals.

In order to further reduce power consumption, the ADC also utilises a low power digital signal processing (DSP) system. The DSP system is capable of automatically controlling power consumption by shuttling data and adjusting the sampling frequency, depending on the requirements. This feature is especially useful when the signal being sampled or measured is of varying power levels. Additionally, the device can be programmed to enter low power modes when it is not actively sampling.

The MAX1246AEEE features 8-bit/16-bit on-chip programmable gain amplifiers, which can be adjusted for specific requirements. The gain amplifiers also enable the ADC to accurately handle larger signal level inputs and reduce noise and distortion. The device also has adjustable low pass filters, which can be used to remove undesirable frequencies and reduce the load on the data conversion resources.

Overall, the MAX1246AEEE is a high speed and low power ADC which can be used in a variety of analog signal applications. The device features a wide dynamic range, low power and high accuracy, making it an ideal choice for a range of data acquisition applications.

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