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LF412-N Datenblatt(PDF) 5 Page - Texas Instruments |
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LF412-N Datenblatt(HTML) 5 Page - Texas Instruments |
5 / 17 page LF412-N www.ti.com SNOSBH7E – APRIL 1999 – REVISED MARCH 2013 DC Electrical Characteristics Symbol Parameter Conditions LF412A(1) LF412(1) Units Min Typ Max Min Typ Max VOS Input Offset Voltage RS=10 kΩ, TA=25°C 0.5 1.0 1.0 3.0 mV ΔVOS/ΔT Average TC of Input RS=10 kΩ (2) 7 10 7 20 μV/°C Offset Voltage IOS Input Offset Current VS=±15V (1) (3) Tj=25°C 25 100 25 100 pA Tj=70°C 2 2 nA Tj=125°C 25 25 nA IB Input Bias Current VS=±15V (1) (3) Tj=25°C 50 200 50 200 pA Tj=70°C 4 4 nA Tj=125°C 50 50 nA RIN Input Resistance Tj=25°C 1012 1012 Ω AVOL Large Signal Voltage RL=2k, TA=25°C 50 200 25 200 V/mV Gain VS=±15V, VO=±10V, Over Temperature 25 200 15 200 V/mV VO Output Voltage Swing VS=±15V, RL=10k ±12 ±13.5 ±12 ±13.5 V VCM Input Common-Mode ±16 +19.5 ±11 +14.5 V Voltage Range −16.5 −11.5 V CMRR Common-Mode Rejection RS≤10k 80 100 70 100 dB Ratio PSRR Supply Voltage Rejection (4)80 100 70 100 dB Ratio IS Supply Current VO = 0V, RL = ∞ 3.6 5.6 3.6 6.5 mA (1) Unless otherwise specified, the specifications apply over the full temperature range and for VS=±20V for the LF412A and for VS=±15V for the LF412. VOS, IB, and IOS are measured at VCM=0. (2) The LF412A is 100% tested to this specification. The LF412 is sample tested on a per amplifier basis to insure at least 85% of the amplifiers meet this specification. (3) The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature, Tj. Due to limited production test time, the input bias currents measured are correlated to junction temperature. In normal operation the junction temperature rises above the ambient temperature as a result of internal power dissipation, PD. Tj=TA+θjA PD where θjA is the thermal resistance from junction to ambient. Use of a heat sink is recommended if input bias current is to be kept to a minimum. (4) Supply voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously in accordance with common practice. VS = ±6V to ±15V. AC Electrical Characteristics LF412A(1) LF412(1) Symbol Parameter Conditions Units Min Typ Max Min Typ Max Amplifier to Amplifier TA=25°C, f=1 Hz-20 kHz −120 −120 dB Coupling (Input Referred) SR Slew Rate VS=±15V, TA=25°C 10 15 8 15 V/ μs GBW Gain-Bandwidth Product VS=±15V, TA=25°C 3 4 2.7 4 MHz THD Total Harmonic Dist AV=+10, RL=10k, ≤0.02 ≤0.02 % VO=20 Vp-p, BW=20 Hz-20 kHz en Equivalent Input Noise TA=25°C, RS=100Ω, 25 25 nV / √Hz Voltage f=1 kHz in Equivalent Input Noise TA=25°C, 0.01 0.01 pA / √Hz Current f=1 kHz (1) Unless otherwise specified, the specifications apply over the full temperature range and for VS=±20V for the LF412A and for VS=±15V for the LF412. VOS, IB, and IOS are measured at VCM=0. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LF412-N |
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