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OPA391 데이터시트(PDF) 5 Page - Texas Instruments |
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OPA391 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 18 page 6.5 Electrical Characteristics at VS = 1.7 V to 5.5 V, TA = 25°C, and VCM = VS / 2 (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE VOS Input offset voltage VS = 5.0 V ±10 ±45 µV VCM = (V+) – 0.3, VS = 5.0 ±60 ±750 VCM = (V–) – 0.1 ±15 ±80 TA = –40°C to +125°C(1) ±500 dVOS/dT Input offset voltage drift TA = 0°C to 85°C(1) ±1 ±5 µV/°C TA = –40°C to +125°C(1) ±1.2 ±6 PSRR Power supply rejection ratio VCM = (V–) – 0.1 V 40 µV/V INPUT BIAS CURRENT IB Input bias current TA = 25°C(1) ±0.01 0.8 pA TA = 0°C to 85°C(1) 5 TA = –40°C to +125°C(1) 30 IOS Input offset current TA = 25°C(1) ±0.01 0.8 pA TA = 0°C to 85°C(1) 5 TA = –40°C to +125°C(1) 30 NOISE Input voltage noise f = 0.1 Hz to 10 Hz 1 µVRMS 6.6 µVPP en Input voltage noise density f = 10 Hz 120 nV/√Hz f = 1 kHz 55 f = 10 kHz 55 in Input current noise density f = 1 kHz 30 fA/√Hz INPUT VOLTAGE VCM Common-mode voltage TA = –40°C to +125°C(1) (V–) – 0.1 (V+) + 0.1 V CMRR Common-mode rejection ratio (V–) – 0.1 ≤ VCM ≤ (V+) – 1.5 V 89 100 dB (V–) – 0.1 ≤ VCM ≤ (V+) – 1.5 V, VS = 5.5 V 100 121 TA = –40°C to +125°C(1) 90 100 (V+) – 0.6 ≤ VCM ≤ (V+) + 0.1 V 69 INPUT IMPEDANCE Zid Differential input impedance 0.1 || 5 GΩ || pF Zic Common-mode input impedance 1 || 3 TΩ || pF www.ti.com OPA391 SBOS925 – DECEMBER 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: OPA391 |
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