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OPA145 Datasheet(PDF) 8 Page - Texas Instruments |
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OPA145 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 40 page  8 OPA145, OPA2145, OPA4145 SBOS427 – JUNE 2017 www.ti.com Product Folder Links: OPA145 OPA2145 OPA4145 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) High-speed test, TA = TJ. 7.7 Electrical Characteristics: VS = 4.5 V to 36 V; ±2.25 V to ±18 V at TA = 25°C, RL = 2 kΩ connected to midsupply, and VCM = VOUT = midsupply (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE VOS Offset voltage, RTI VS = ±18 V ±40 ±150 μV VS = ±18 V, TA = 0°C to +85°C ±280 VS = ±18 V, TA = –40°C to +125°C ±350 dVOS/dT Drift VS = ±18 V, TA = 0°C to +85°C ±0.4 ±1 μV/°C VS = ±18 V, TA = –40°C to +125°C ±0.5 ±1.4 PSRR Power-supply rejection ratio VS = ±2.25 V to ±18 V ±0.06 ±0.3 μV/V VS = ±2.25 V to ±18 V, TA = –40°C to +125°C ±2 INPUT BIAS CURRENT(1) IB Input bias current ±2 ±10 pA TA = 0°C to +85°C ±600 TA = –40°C to +125°C ±10 nA IOS Input offset current ±2 ±10 pA TA = 0°C to +85°C ±600 TA = –40°C to +125°C ±10 nA NOISE Input voltage noise f = 0.1 Hz to 10 Hz 320 nVPP f = 0.1 Hz to 10 Hz 60 nVRMS en Input voltage noise density f = 10 Hz 9 nV/ √Hz f = 100 Hz 7.2 f = 1 kHz 7 In Input current noise density f = 1 kHz 0.8 fA/ √Hz INPUT VOLTAGE RANGE VCM Common-mode voltage range TA = –40°C to +125°C (V–) –0.1 (V+)–3.5 V CMRR Common-mode rejection ratio VS = ±18 V, VCM = (V–) –0.1 V to (V+) – 3.5 V 126 140 dB VS = ±18 V, VCM = (V–) –0.1 V to (V+) – 3.5 V, TA = –40°C to +125°C 118 INPUT IMPEDANCE Differential 1013 || 5.0 Ω || pF Common-mode VCM = (V–) –0.1 V to (V+) –3.5 V 1013 || 4.3 OPEN-LOOP GAIN AOL Open-loop voltage gain VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 10 kΩ 118 123 dB VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 2 kΩ 106 110 VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 2 kΩ, TA = –40°C to +125°C 102 |
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