Which of the ADC is most accurate?
“LTC2378-20 is the first 20bit SAR ADC on the market offering ±0.5ppm typical integral nonlinearity [INL] error with a guaranteed specification of 2ppm maximum over temperature, making it the most accurate ADC in the industry.
What is precision in ADC?
The ADC precision is the number of distinguishable ADC inputs (e.g., 4096 alternatives, 12 bits). The ADC range is the maximum and minimum ADC input (e.g., 0 to +3.3V). The ADC resolution is the smallest distinguishable change in input (e.g., 3.3V/4095, which is about 0.81 mV).
How do you calculate ADC precision?
It is expressed as the number of bits output by the ADC. Therefore, an ADC which converts the analog signal to a 12-bit digital value has a resolution of 12 bits. -1. With a 3.3 V reference voltage, the resolution is 3.3/212 = 3.3/4096 = 0.805 (mV).
Which type of ADC has high resolution?
Delta-sigma ADCs work by over-sampling the signals far higher than the selected sample rate. The DSP then creates a high-resolution data stream from this over-sampled data at the rate that the user has selected. This over-sampling can be up to hundreds of times higher than the selected sample rate.
What is the DC performance of a precision ADC selector guide?
The high resolution devices offer excellent DC performance including outstanding INL of up to 0.5ppm and better than 100dB SNR.
What is the resolution of an ADC converter?
Figure 1: Standard ADC noise performance. (Source: Maxim Integrated, Application Note 5384). For converters, resolution is the number of bits per conversion cycle that the converter is capable of processing.
Which is the best ADC for Maxim Integrated?
As the SAR ADC market started to become saturated 5 to 10 years ago, companies such as Maxim Integrated, Analog Devices, Texas Instruments, and Linear Technology all invested in multiple sigma-delta cores. The result today is very good ADCs up to 24 or 32 bits and with sample rates between 10sps to a few Msps.
How is the input voltage of an ADC digitized?
An ADC with pseudo-differential inputs digitizes the differential analog input voltage (IN+– IN–) over a limited range. The IN input has the actual analog input signal, while the IN–input has a restricted range. A pseudo-differential unipolar ADC digitizes the differential analog input voltage (IN+– IN–) over a span of 0V to V