ADS8327IBRSARG4

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The ADS8327IBRSARG4 is a highly integrated Analog-to-Digital converter (ADC) used in data acquisition applications. It is designed to provide exceptionally low-noise performance, with a conversion speed of up to 125 kHz. The device features a wide input range, low-power operation, low-cost, high-accuracy 12-bit plus light measurement option (±1 LSB INL), and a single ended-to-differential operation.

Application fields

The ADS8327IBRSARG4 is suitable for data acquisition applications such as imaging, network communication, video, audio, measuring and control and industrial automation. With its high-speed conversion and low-power consumption, it is ideal for data-intensive applications. It can also be used in medical ultrasound and ultrasound imaging systems, and for test equipment and medical instrumentation applications.

Working principle

The ADS8327IBRSARG4 integrates a high-accuracy Delta Sigma ADC with a programmable analog input mux and a latch. The integrated latch provides single-ended-to-differential conversion of the analog input signal allowing direct connection of a differential sensor to the input of the device. The ADC features an internal reference, allowing the conversion of a wide input voltage range without requiring a separate reference voltage. The conversion result is 12-bit resolution or better. The output data is presented in serial form, framed by latch infobits, and is compatible with CMOS and LVCMOS logic.

The integrated input MUX allows for selection of any one of eight independent single-ended analog input channels. The MUX output is connected to the 10-bit integrating Sigma-Delta Analog-to-Digital Converter (ADC). This ADC is configured to operate as an eight-bit converter with four output bits, followed by an eight-bit enhancement stage with four output bits. The ADC output is serialized and presented at the output with the data bits being multiplexed with the Latch Info bits. The latch info bits carry the information necessary to build up the 12-bit-wide output word.

The ADS8327IBRSARG4 features a low-power conversion mode that allows for higher resolutions and higher speeds with reduced power consumption. This feature allows the device to consume less than 1 mW of power when operated at 125 kHz. The device is capable of four conversion modes, Single Conversion, Continuous Conversion, Burst Conversion and Single Conversion with Post-conversion Hold. The device offers a fully differential output, allowing it to be connected to differential analog-input channels without the need for a separate amplifier circuit.

The ADS8327IBRSARG4 supports a variety of operating modes, such as automatic offset calibration, on-chip temperature compensation, and on-chip gain trim. It also supports a wide range of input signal frequencies and is tolerant of input jitter. The device also incorporates selectable power-saving modes for better power efficiency.

In summary, the ADS8327IBRSARG4 is an 8-bit low-noise, high-speed, high-resolution Analog-to-Digital Converter designed for data acquisition applications. It is designed for use in medical ultrasound and ultrasound imaging systems, and for test equipment and medical instrumentation applications. It features an integrated low-power, low-cost ADC and programmable input mux, and supports a variety of operating modes, allowing it to be used in a wide variety of applications. With its high-speed conversion and low-power consumption, it is ideal for data-intensive applications.

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