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LF442-MWA Folha de dados(PDF) 5 Page - Texas Instruments |
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LF442-MWA Folha de dados(HTML) 5 Page - Texas Instruments |
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5 / 24 page  LF442 www.ti.com SNOSC03F – APRIL 1999 – REVISED OCTOBER 2014 6.6 DC Electrical Characteristics (1) (2) LF442A LF442 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX VOS Input Offset Voltage RS = 10 kΩ, TA = 25°C 0.5 1.0 1.0 5.0 mV Over Temperature 7.5 mV ΔVOS/ΔT Average TC of Input Offset RS = 10 kΩ 7 7 μV/°C Voltage IOS Input Offset Current VS = ±15V (1) (3) Tj = 25°C 5 25 5 50 pA Tj = 70°C 1.5 1.5 nA Tj = 125°C 10 nA IB Input Bias Current VS = ±15V (1) (3) Tj = 25°C 10 50 10 100 pA Tj = 70°C 3 3 nA Tj = 125°C 20 nA RIN Input Resistance Tj = 25°C 1012 1012 Ω AVOL Large Signal Voltage Gain VS = ±15V, VO = ±10V, 50 200 25 200 V/mV RL = 10 kΩ, TA = 25°C Over Temperature 25 200 15 200 V/mV VO Output Voltage Swing VS = ±15V, RL = 10 kΩ ±12 ±13 ±12 ±13 V VCM Input Common-Mode ±16 +18 ±11 +14 V Voltage Range −17 −12 V CMRR Common-Mode Rejection RS ≤ 10 kΩ 80 100 70 95 dB Ratio PSRR Supply Voltage Rejection See(4) 80 100 70 90 dB Ratio IS Supply Current 300 400 400 500 μA (1) Unless otherwise specified, the specifications apply over the full temperature range and for VS = ±20V for the LF442A and for VS = ±15V for the LF442. VOS, IB, and IOS are measured at VCM = 0. (2) Refer to RETS442X for LF442MH military specifications. (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 + θjAPD 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 from ±15V to ±5V for the LF442 and ±20V to ±5V for the LF442A. 6.7 AC Electrical Characteristics (1) (2) LF442A LF442 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX Amplifier to Amplifier Coupling TA = 25°C, f = 1 Hz-20 kHz (Input −120 −120 dB Referred) SR Slew Rate VS = ±15V, TA = 25°C 0.8 1 0.6 1 V/ μs GBW Gain-Bandwidth Product VS = ±15V, TA = 25°C 0.8 1 0.6 1 MHz en Equivalent Input Noise Voltage TA = 25°C, RS = 100Ω, f = 1 kHz 35 35 nV/ √Hz in Equivalent Input Noise Current TA = 25°C, f = 1 kHz 0.01 0.01 pA/ √Hz (1) Unless otherwise specified, the specifications apply over the full temperature range and for VS = ±20V for the LF442A and for VS = ±15V for the LF442. VOS, IB, and IOS are measured at VCM = 0. (2) Refer to RETS442X for LF442MH military specifications. Copyright © 1999–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LF442 |
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