LF356N National Semiconductor, LF356N Datasheet
LF356N
Specifications of LF356N
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LF356N Summary of contents
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... Wideband, low noise, low drift amplifiers Simplified Schematic * 3pF in LF357 series. BI-FET ™ , BI-FET II ™ are trademarks of National Semiconductor Corporation. © 2001 National Semiconductor Corporation n Logarithmic amplifiers n Photocell amplifiers n Sample and Hold circuits Common Features ™ Tech- n Low input bias current: ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage Differential Input Voltage Input Voltage Range (Note 2) Output Short Circuit Duration T JMAX H-Package N-Package M-Package Power Dissipation H-Package (Still Air) H-Package (400 LF/Min Air Flow) ...
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DC Electrical Characteristics (Note 3) Symbol Parameter I Input Bias Current B R Input Resistance IN A Large Signal Voltage VOL Gain V Output Voltage Swing O V Input Common-Mode CM Voltage Range CMRR Common-Mode Rejection Ratio PSRR Supply Voltage ...
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Notes for Electrical Characteristics LF155/156 ± Supply Voltage, V 15V S T −55˚ +125˚C HIGH and and I are measured Note 4: The Temperature Coefficient of the ...
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Typical DC Performance Characteristics specified. (Continued) Supply Current Negative Current Limit Positive Common-Mode Input Voltage Limit Curves are for LF155 and LF156 unless otherwise 00564641 Positive Current Limit 00564643 Negative Common-Mode 00564645 5 Supply Current 00564642 00564644 Input Voltage Limit ...
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Typical DC Performance Characteristics specified. (Continued) Open Loop Voltage Gain Typical AC Performance Characteristics Gain Bandwidth Normalized Slew Rate www.national.com Curves are for LF155 and LF156 unless otherwise Output Voltage Swing 00564647 00564649 00564651 6 00564648 Gain Bandwidth 00564650 Output ...
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Typical AC Performance Characteristics Output Impedance LF156 Small Signal Pulse Response, A LF156 Large Signal Puls Response (Continued) LF155 Small Signal Pulse Response, A 00564653 = +1 LF155 Large Signal Pulse Response 00564606 00564609 ...
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Typical AC Performance Characteristics Inverter Settling Time Bode Plot Bode Plot www.national.com (Continued) Open Loop Frequency Response 00564656 00564658 Common-Mode Rejection Ratio 00564660 8 00564657 Bode Plot 00564659 00564661 ...
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Typical AC Performance Characteristics Power Supply Rejection Ratio Undistorted Output Voltage Swing Equivalent Input Noise Voltage (Expanded Scale) (Continued) Power Supply Rejection Ratio 00564662 Equivalent Input Noise Voltage 00564664 00564666 9 00564663 00564665 www.national.com ...
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... Available per JM38510/11401 or JM38510/11402 www.national.com (Top Views) 00564614 Order Number LF356M, LF356MX, LF355N, or LF356N See NS Package Number M08A or N08E Application Hints These are op amps with JFET input devices. These JFETs have large reverse breakdown voltages from gate to source and drain eliminating the need for clamps across the inputs. ...
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Application Hints (Continued) reversal of phase to the output. Exceeding the negative common-mode limit on both inputs will force the amplifier output to a high state. In neither case does a latch occur since raising the input back within the ...
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Typical Applications • Settling time is tested with the LF155/6 connected as unity gain inverter and LF357 connected for A • FET used to isolate the probe capacitance • Output = 10V step • −5 for LF357 V ...
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Typical Applications (Continued) ± • 0.002%/˚C OUT • All resistors and potentiometers should be wire-wound • P1: drift adjust • P2: V adjust OUT • Use LF155 for j Low Low drift j ...
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Typical Applications • R1/R2 (V/ • R1, R2, R3: 0.1% resistors • Use LF155 for j Common-mode range to supply range j Low Low Low Supply ...
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Typical Applications (Continued) • Parasitic input capacitance C1 . (3pF for LF155, LF156 and LF357 plus any additional layout capacitance) interacts with feedback elements and creates undesirable high frequency pole. To compensate add C2 such that ...
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Typical Applications R1, R4 matched. Linearity 0.1% over 2 decades. • Overshoot 6% • t 10µs s • When driving large C , the V L OUT www.national.com (Continued) 3 Decades VCO Isolating Large Capacitive Loads slew rate determined by ...
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Typical Applications (Continued) • By adding D1 and during hold mode. Leakage of D2 provided by feedback path through • Leakage of circuit is essentially I (LF155, LF156) plus capacitor leakage of Cp. ...
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Typical Applications High Impedance, Low Drift Instrumentation Amplifier • System V adjusted via • Trim R3 to boost up CMRR to 120 dB. Instrumentation amplifier resistor array recommended for best accuracy and lowest drift www.national.com (Continued) ...
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Typical Applications (Continued) • Both amplifiers (A1, A2) have feedback loops individually closed with stable responses (overshoot negligible) • Acquisition time T , estimated by: A • LF156 develops full S output capability for V r • Addition of SW2 ...
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Typical Applications • By closing the loop through A2, the adjust required for A2. OS • T can be estimated by same considerations as previously but, because of the added A propagation delay in the feedback loop ...
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Typical Applications (Continued) • 2R1 = R = 10M 300pF • Capacitors should be matched to obtain high Q • 120 Hz, notch = −55 dB, Q NOTCH • Use LF155 for j Low ...
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Physical Dimensions Order Number LF155H, LF156H, LF256H, LF257H, LF356BH, LF356H or LF357H www.national.com inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package Number H08C Small Outline Package (M) Order Number LF356M or LF356MX NS Package Number M08A 22 ...
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... National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LF356N NS Package Number N08E 2. A critical component is any component of a life ...