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OPA2387 데이터시트(PDF) 5 Page - Texas Instruments |
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OPA2387 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 26 page 6.5 Electrical Characteristics at TA = 25°C, RL = 10 kΩ connected to VS / 2, VS = 1.7 V to 5.5 V, VCM = VS / 2, VOUT = VS / 2, and min and max specification established from manufacturing final test (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE VOS Input offset voltage TA = –40°C to +125°C(1) VS = 5.5 V ±1 µV ±1.5 VS = 5.5 V ±0.25 ±2 VS = 1.7 V ±0.35 ±2.5 VCM = (V–) – 0.1(1) ±2 VCM = (V+) + 0.1(1) ±2 dVOS/dT Input offset voltage drift TA = –40°C to +125°C(1) ±0.003 ±0.012 μV/°C PSRR Power supply rejection ratio VS = 1.7 V to 5.5 V ±0.05 ±0.35 μV/V TA = –40°C to +125°C(1) ±1 INPUT BIAS CURRENT IB Input bias current ±30 ±135 pA TA = –40°C to +125°C(1) ±135 IOS Input offset current ±60 ±270 pA TA = –40°C to +125°C(1) ±270 NOISE Input voltage noise f = 0.1 Hz to 10 Hz 177 nVPP 27 nVRMS eN Input voltage noise density f = 1 Hz 8.5 nV/√Hz f = 10 Hz 8.5 f = 100 Hz 8.5 f = 1 kHz 8.5 iN Input current noise f = 1 kHz 70 fA/√Hz INPUT VOLTAGE RANGE VCM Common-mode voltage range VS = 1.7 V (V–) – 0.1 (V+) V VS = 5.5 V (V–) – 0.2 (V+) + 0.1 CMRR Common-mode rejection ratio (V–) – 0.1 V < VCM < (V+), VS = 1.7 V 115 138 dB (V–) – 0.2 V < VCM < (V+) + 0.1 V, VS = 5.5 V 140 150 (V–) – 0.1 V < VCM < (V+), TA = –40°C to +125°C(1) 110 132 (V–) – 0.2 V < VCM < (V+) + 0.1, VS = 5.5 V, TA = –40°C to +125°C(1) 130 INPUT CAPACITANCE ZID Differential 100 || 3 MΩ || pF ZICM Common-mode 60 || 3 GΩ || pF OPEN-LOOP GAIN AOL Open-loop voltage gain (V–) + 100 mV < VOUT < (V+) – 100 mV, RL = 10 kΩ 132 145 dB TA = –40°C to +125°C(1) 125 (V–) + 150 mV < VOUT < (V+) – 150 mV, RL = 2 kΩ 132 145 TA = –40°C to +125°C(1) 125 www.ti.com OPA2387 SBOS984A – NOVEMBER 2020 – REVISED DECEMBER 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: OPA2387 |
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