LTC2357HLX-16#PBF

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Data Acquisition - Analog to Digital Converters (ADC) are devices used to convert analog signals into digital signals. The LTC2357HLX-16#PBF is one such device that is commonly used in applications involving high speed and precision analog-to-digital conversion. In this article, we will discuss the application field and working principle of the LTC2357HLX-16#PBF.

The LTC2357HLX-16#PBF is a pin-compatible, 16-bit, 10MSPS, differential input, and low-noise ADC that is designed to minimize noise and EMI/RFI coupling. It has a typical SNR (Signal to Noise Ratio) of 92dB, an excellent third order Intercept Point of -91dBm, and a wide input dynamic range of 0 to 6.2V. This makes it an ideal choice for industrial, medical, and aerospace applications where high accuracy, reliability, and performance are required.

The operating principle of the LTC2357HLX-16#PBF is based on a series of internal analog-to-digital conversion stages. The input signal is first amplified by a voltage-controlled amplifier, also known as an Error Amplifier. The Error Amplifier increases the signal to a level where it can be accurately detected by the successive MT15J Level Detector. The Level Detector then detects the input signal voltage level, and the successive Flash Conversion stage converts the analog voltage level into a digital output code. At this stage, the code is compared to an internal reference, and the successive Digital Step Adjustment stage amplifies the reference level. Finally, a one-bit data slicer interprets the output code and yields the digital output.

The LTC2357HLX-16#PBF is designed to operate over a single +3.3V supply, and can also be powered down to 5µW during power-sensitive operation using a single-pin control. It supports a wide range of input frequencies, from DC to 10MHz, and has a power spectral density of -160dB/Hz. The LTC2357HLX-16#PBF is suitable for direct sampling of full-scale input range signals, and is also single-clock cycle capable, allowing for 400ksps throughput.

The LTC2357HLX-16#PBF also features an on-chip voltage reference, allowing for ±1LSB Adjustable Internal Reference Offset, as well as an input common-mode voltage range from -10V to 6.2V. It has an on-chip over-range indicator, allowing for non-inverting level-shifting, and a special wide temperature range for industrial operation. The LTC2357HLX-16#PBF operates over a temperature range from -40°C to 85°C and is housed in a 4mm x 4mm, 16-lead QFN package.

In summary, the LTC2357HLX-16#PBF is a precision 16-bit, 10MSPS, differential input, and low-noise ADC that is designed to minimize noise and EMI/RFI coupling. It is most suitable for applications involving industrial, medical, and aerospace applications where high accuracy, reliability, and performance are essential requirements. It supports a wide range of input frequencies, from DC to 10MHz, and has a power spectral density of -160dB/Hz. It also operates over a temperature range from -40°C to 85°C and is housed in a 4mm x 4mm, 16-lead QFN package.

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