Datenblatt-Suchmaschine für elektronische Bauteile |
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BA3131FS Datenblatt(PDF) 4 Page - Rohm |
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BA3131FS Datenblatt(HTML) 4 Page - Rohm |
4 / 9 page BA3131FS Standard ICs ! ! ! !Measurement conditions (Figure 1) Measurement Item EK Equation Input offset voltage 8 — ON ON OFF OFF 1 Input offset current 8 — OFF OFF OFF OFF 2 Input bias current 8 — OFF ON OFF OFF 3 ON OFF High-amplitude voltage gain 8 5.5 ON ON ON OFF 4 2.5 86 8 ON ON OFF OFF 5 82 0 Power supply voltage rejection ratio 6 — ON ON OFF OFF 6 18 — Common-mode signal rejection ratio (Common-mode input voltage) VCC VR Vref Vref Vref Vref Vref Vref VF1 VF VF2 VF3 VF4 VF5 VF6 VF7 VF8 VF9 VF10 S1 S2 S3 S4 ! ! ! !Equations (1) Input offset voltage (Vio) Vio = | VF1 | / (1 + Rf / Rs) (2) Input offset current (Iio) Iio = | VF2 - VF1 | / (Ri (1 + Rf / Rs) ) (3) Input bias current (Ib) Ib = | VF4 - VF3 | / (2 Ri (1 + Rf / Rs) ) (4) High-amplitude voltage gain (Avol) Avol = 20log (3 (1 + Rf / Rs) / | VF6 - VF5 | ) (dB) (5) In-phase signal rejection ratio (CMRR) CMRR = 20log (4 (1 + Rf / Rs) / | VF8 - VF7 | ) (dB) (6) (In-phase input voltage range) (PSRR) PSRR = 20log (12 (1 + Rf / Rs) / | VF10 - VF9 | ) (dB) |
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