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LF356MX Fiches technique(PDF) 1 Page - Texas Instruments |
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LF356MX Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 43 page Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LF155, LF156, LF256, LF257 LF355, LF356, LF357 SNOSBH0D – MAY 2000 – REVISED NOVEMBER 2015 LFx5x JFET Input Operational Amplifiers 1 Features 2 Applications 1 • Advantages • Precision High-Speed Integrators • Fast D/A and A/D Converters – Replace Expensive Hybrid and Module FET Op Amps • High Impedance Buffers – Rugged JFETs Allow Blow-Out Free Handling • Wideband, Low Noise, Low Drift Amplifiers Compared With MOSFET Input Devices • Logarithmic Amplifiers – Excellent for Low Noise Applications Using • Photocell Amplifiers Either High or Low Source Impedance—Very • Sample and Hold Circuits Low 1/f Corner – Offset Adjust Does Not Degrade Drift or 3 Description Common-Mode Rejection as in Most The LFx5x devices are the first monolithic JFET input Monolithic Amplifiers operational amplifiers to incorporate well-matched, – New Output Stage Allows Use of Large high-voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These Capacitive Loads (5,000 pF) Without Stability amplifiers feature low input bias and offset Problems currents/low offset voltage and offset voltage drift, – Internal Compensation and Large Differential coupled with offset adjust, which does not degrade Input Voltage Capability drift or common-mode rejection. The devices are also • Common Features designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current – Low Input Bias Current: 30 pA noise and a low 1/f noise corner. – Low Input Offset Current: 3 pA – High Input Impedance: 1012 Ω Device Information(1) – Low Input Noise Current: 0.01 pA/ √Hz PART NUMBER PACKAGE BODY SIZE (NOM) – High Common-Mode Rejection Ratio: 100 dB SOIC (8) 4.90 mm × 3.91 mm LFx5x TO-CAN (8) 9.08 mm × 9.08 mm – Large DC Voltage Gain: 106 dB PDIP (8) 9.81 mm × 6.35 mm • Uncommon Features (1) For all available packages, see the orderable addendum at – Extremely Fast Settling Time to 0.01%: the end of the data sheet. – 4 μs for the LFx55 devices – 1.5 μs for the LFx56 Simplified Schematic – 1.5 μs for the LFx57 (AV = 5) – Fast Slew Rate: – 5 V/µs for the LFx55 – 12 V/µs for the LFx56 – 50 V/µs for the LFx57 (AV = 5) – Wide Gain Bandwidth: – 2.5 MHz for the LFx55 devices – 5 MHz for the LFx56 – 20 MHz for the LFx57 (AV = 5) – Low Input Noise Voltage: – 20 nV/ √Hz for the LFx55 3 pF in LF357 series – 12 nV/ √Hz for the LFx56 – 12 nV/ √Hz for the LFx57 (AV = 5) 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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