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STM32L475VC 数据表(PDF) 154 Page - STMicroelectronics |
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STM32L475VC 数据表(HTML) 154 Page - STMicroelectronics |
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154 / 193 page  Electrical characteristics STM32L475xx 154/193 DocID027692 Rev 2 6.3.21 Operational amplifiers characteristics 1. Guaranteed by design, unless otherwise specified. 2. Refer to Table 25: Embedded internal voltage reference. 3. Guaranteed by characterization results. Table 74. OPAMP characteristics(1) Symbol Parameter Conditions Min Typ Max Unit VDDA Analog supply voltage(2) -1.8 - 3.6 V CMIR Common mode input range -0 - VDDA V VIOFFSET Input offset voltage 25 °C, No Load on output. - - ±1.5 mV All voltage/Temp. - - ±3 ∆VIOFFSET Input offset voltage drift Normal mode - ±5 - μV/°C Low-power mode - ±10 - TRIMOFFSETP TRIMLPOFFSETP Offset trim step at low common input voltage (0.1 ₓ VDDA) -- 0.8 1.1 mV TRIMOFFSETN TRIMLPOFFSETN Offset trim step at high common input voltage (0.9 ₓ VDDA) -- 1 1.35 ILOAD Drive current Normal mode VDDA ≥ 2 V - - 500 µA Low-power mode - - 100 ILOAD_PGA Drive current in PGA mode Normal mode VDDA ≥ 2 V - - 450 Low-power mode - - 50 RLOAD Resistive load (connected to VSSA or to VDDA) Normal mode VDDA < 2 V 4- - kΩ Low-power mode 20 - - RLOAD_PGA Resistive load in PGA mode (connected to VSSA or to VDDA) Normal mode VDDA < 2 V 4.5 - - Low-power mode 40 - - CLOAD Capacitive load - - - 50 pF CMRR Common mode rejection ratio Normal mode - -85 - dB Low-power mode - -90 - |
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