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STM32U073RCU3 Datasheet(PDF) 97 Page - STMicroelectronics |
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STM32U073RCU3 Datasheet(HTML) 97 Page - STMicroelectronics |
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97 / 146 page  Symbol Parameter Conditions Min Typ Max Unit Offset Offset error at code 0x800(2) DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ VREF+ = 3.6 V LSB - - ±12 VREF+ = 1.8 V - - ±25 DAC output buffer OFF CL ≤ 50 pF, no RL - - ±8 Offset1 Offset error at code 0x001(3) DAC output buffer OFF CL ≤ 50 pF, no RL - - ±5 OffsetCal Offset Error at code 0x800 after calibration DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ VREF+ = 3.6 V - - ±5 VREF+ = 1.8 V - - ±7 Gain Gain error(4) DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ - - ±0.5 % DAC output buffer OFF CL ≤ 50 pF, no RL - - ±0.5 TUE Total unadjusted error DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ - - ±30 LSB DAC output buffer OFF CL ≤ 50 pF, no RL - - ±12 TUECal Total unadjusted error after calibration DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ - - ±23 LSB SNR Signal-to-noise ratio DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ 1 kHz, BW 500 kHz - 71.2 - dB DAC output buffer OFF CL ≤ 50 pF, no RL, 1 kHz BW 500 kHz - 71.6 - THD Total harmonic distortion DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz - -78 - dB DAC output buffer OFF CL ≤ 50 pF, no RL, 1 kHz - -79 - SINAD Signal-to-noise and distortion ratio DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz - 70.4 - dB DAC output buffer OFF CL ≤ 50 pF, no RL, 1 kHz - 71 - ENOB Effective number of bits DAC output buffer ON CL ≤ 50 pF, RL ≥ 5 kΩ, 1 kHz - 11.4 - bits DAC output buffer OFF CL ≤ 50 pF, no RL, 1 kHz - 11.5 - 1. Difference between two consecutive codes - 1 LSB. 2. Difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code 4095. 3. Difference between the value measured at Code (0x001) and the ideal value. 4. Difference between ideal slope of the transfer function and measured slope computed from code 0x000 and 0xFFF when buffer is OFF, and from code giving 0.2 V and (VREF+ - 0.2) V when buffer is ON. 6.3.22 Voltage reference buffer characteristics Table 78. VREFBUF characteristics Specified by design, not tested in production. Symbol Parameter Conditions Min Typ Max Unit VDDA Analog supply voltage Normal mode VRS = 0 2.4 - 3.6 V STM32U073x8/B/C Electrical characteristics DS14548 - Rev 2 page 97/146 |
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