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STM32W108CB Datasheet(PDF) 250 Page - STMicroelectronics |
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STM32W108CB Datasheet(HTML) 250 Page - STMicroelectronics |
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250 / 278 page ![]() Electrical characteristics STM32W108HB STM32W108CC STM32W108CB STM32W108CZ 250/278 Doc ID 16252 Rev 14 Table 58 describes the key ADC parameters measured at 25°C and VDD_PADS at 3.0 V, for a sampling rate of 6 MHz. HVSELP and HVSELN are programmed to 1 to enable the input buffer. The single-ended measurements were done at finput = 7.7% fNyquist, level = 1.2 V p-p swing centered on 1.5 V. The differential measurements were done at finput = 7.7% fNyquist, level = 1.2 V p-p swing and a comon mode voltage of 1.5 V. SMP[2:0] Conversion Time (µs) Nyquist Freq (kHz) 3 dB Cut-off (kHz) INL (codes peak) INL (codes RMS) DNL (codes peak) DNL (codes RMS) ENOB (from single- cycle test) SNR (dB) Single-Ended Differential SINAD (dB) Single-Ended Differential SDFR (dB) Single-Ended Differential THD (dB) Single-Ended Differential ENOB (from SNR) Single-Ended Differential ENOB (from SINAD) Single-Ended Differential Equivalent ADC Bits Table 58. ADC module key parameters for input buffer enabled and 6MHz sampling(1) 1. INL and DNL are referenced to a LSB of the Equivalent ADC Bits shown in the last row of Table 58. ENOB (effective number of bits) can be calculated from either SNR (signal to non-harmonic noise ratio) or SINAD (signal-to-noise and distortion ratio). Parameter Performance 0 1 2 3 4 5 6 7 32 64 128 256 512 1024 2048 4096 93.8 46.9 23.4 11.7 5.86 2.93 1.47 0.732 56.6 28.3 14.1 7.07 3.54 1.77k 0.884 0.442 0.055 0.032 0.038 0.07 0.123 0.261 0.522 1.028 0.028 0.017 0.02 0.04 0.077 0.167 0.326 0.65 0.028 0.017 0.02 0.04 0.077 0.167 0.326 0.65 0.01 0.006 0.006 0.007 0.008 0.013 0.023 0.038 3.6 5.0 6.6 8.1 9.5 10.7 11.3 11.6 23 23 32 32 41 41 50 50 59 59 65 66 67 69 68 71 23 23 32 32 41 41 50 50 58 59 64 66 66 69 66 71 48 48 56 57 65 65 72 74 72 82 72 88 73 88 73 88 -33 -33 -42 -42 -51 -51 -59 -60 -66 -69 -68 -76 -68 -80 -68 -82 3.6 3.6 5.1 5.1 6.6 6.6 8.1 8.1 9.5 9.5 10.5 10.7 10.9 11.3 11 11.5 3.6 3.6 5.0 5.1 6.5 6.6 8.0 8.0 9.4 9.5 10.3 10.6 10.7 11.3 10.7 11.4 7 [15:9] 8 [15:8] 9 [15:7] 10 [15:6] 11 [15:5] 12 [15:4] 13 [15:3] 14 [15:2] |
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