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Amplificadores operacionales (op amps)
Amplificadores operacionales de alta velocidad (GBW ≥ 50 MHz)

LMH6738

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Amplificador operacional triple de muy banda ancha y distorsión baja

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LMH6738

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Detalles del producto

Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 750 BW at Acl (MHz) 750 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3300 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 50 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 30 Iout (typ) (mA) 90 2nd harmonic (dBc) 80 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 750 BW at Acl (MHz) 750 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3300 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 50 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 30 Iout (typ) (mA) 90 2nd harmonic (dBc) 80 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 5
SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • 750 MHz −3 dB small signal bandwidth
    (AV = +1)
  • −85 dBc 3rd harmonic distortion (20 MHz)
  • 2.3 nV/Hz input noise voltage
  • 3300 V/μs slew rate
  • 33 mA supply current (11.3 mA per op amp)
  • 90 mA linear output current
  • 0.02/0.01 Diff. Gain / Diff. Phase (RL = 150Ω)

All trademarks are the property of their respective owners.

  • 750 MHz −3 dB small signal bandwidth
    (AV = +1)
  • −85 dBc 3rd harmonic distortion (20 MHz)
  • 2.3 nV/Hz input noise voltage
  • 3300 V/μs slew rate
  • 33 mA supply current (11.3 mA per op amp)
  • 90 mA linear output current
  • 0.02/0.01 Diff. Gain / Diff. Phase (RL = 150Ω)

All trademarks are the property of their respective owners.

The LMH6738 is a very wideband, DC coupled monolithic operational amplifier designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from TI’s current feedback architecture, the LMH6738 offers a gain range of ±1 to ±10 while providing stable, operation without external compensation, even at unity gain. At a gain of +2 the LMH6738 supports ultra high resolution video systems with a 400 MHz 2 VPP –3 dB Bandwidth. With 12-bit distortion levels through 30 MHz (RL = 100Ω), 2.3 nV/Hz input referred noise, the LMH6738 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6738 low input referred noise and low harmonic distortion make it an attractive solution.

The LMH6738 is a very wideband, DC coupled monolithic operational amplifier designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from TI’s current feedback architecture, the LMH6738 offers a gain range of ±1 to ±10 while providing stable, operation without external compensation, even at unity gain. At a gain of +2 the LMH6738 supports ultra high resolution video systems with a 400 MHz 2 VPP –3 dB Bandwidth. With 12-bit distortion levels through 30 MHz (RL = 100Ω), 2.3 nV/Hz input referred noise, the LMH6738 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6738 low input referred noise and low harmonic distortion make it an attractive solution.
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Documentación técnica

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* Data sheet LMH6738 Very Wideband, Low Distortion Triple Op Amp datasheet (Rev. E) 18 mar 2013
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 17 jul 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017

Diseño y desarrollo

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Modelo de simulación

LMH6738 PSPICE Model

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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