Home Verstärker Operationsverstärker (OpAmps) Hochgeschwindigkeits-Operationsverstärker (Transitfrequenz ≥ 50 MHz)

OPA846

AKTIV

Rauscharmer Breitband-Operationsverstärker mit Spannungsrückkopplung

Eine neuere Version dieses Produkts ist verfügbar

Selbe Funktionalität wie der verglichene Baustein bei gleicher Anschlussbelegung.
OPA892 AKTIV Stabiler Operationsverstärker mit 2 GHz, 10 V/V, 0,95 nV√Hz, mit extrem niedriger harmonischer Gesam Wider BW (2 GHz), lower noise (0.95 nV√Hz), lower offset drift (1 µV/°C), and lower THD + N ( -114 dB)

Produktdetails

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1750 BW at Acl (MHz) 500 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 625 Vn at flatband (typ) (nV√Hz) 1.2 Vn at 1 kHz (typ) (nV√Hz) 1.2 Iq per channel (typ) (mA) 12.6 Vos (offset voltage at 25°C) (max) (mV) 0.6 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 110 Input bias current (max) (pA) 19000000 Offset drift (typ) (µV/°C) 1.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 76 3rd harmonic (dBc) 109 Frequency of harmonic distortion measurement (MHz) 5
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1750 BW at Acl (MHz) 500 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 625 Vn at flatband (typ) (nV√Hz) 1.2 Vn at 1 kHz (typ) (nV√Hz) 1.2 Iq per channel (typ) (mA) 12.6 Vos (offset voltage at 25°C) (max) (mV) 0.6 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 110 Input bias current (max) (pA) 19000000 Offset drift (typ) (µV/°C) 1.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 76 3rd harmonic (dBc) 109 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • HIGH BANDWIDTH: 400MHz (G = +10)
  • LOW INPUT VOLTAGE NOISE: 1.2nV/√Hz
  • VERY LOW DISTORTION: –100dBc (5MHz)
  • HIGH SLEW RATE: 625V/µs
  • HIGH DC ACCURACY: VIO ±150µV
  • LOW SUPPLY CURRENT: 12.6mA
  • HIGH GAIN BANDWIDTH PRODUCT: 1750MHz
  • STABLE FOR GAINS ≥ 7
  • APPLICATIONS
    • HIGH DYNAMIC RANGE ADC PREAMPS
    • LOW–NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
    • WIDEBAND, HIGH GAIN AMPLIFIERS
    • LOW–NOISE DIFFERENTIAL RECEIVERS
    • VDSL LINE RECEIVERS
    • ULTRASOUND CHANNEL AMPLIFIERS
    • SECURITY SENSOR FRONT ENDS
    • UPGRADE FOR THE OPA686, CLC425, AND LMH6624

All trademarks are the property of their respective owners.

  • HIGH BANDWIDTH: 400MHz (G = +10)
  • LOW INPUT VOLTAGE NOISE: 1.2nV/√Hz
  • VERY LOW DISTORTION: –100dBc (5MHz)
  • HIGH SLEW RATE: 625V/µs
  • HIGH DC ACCURACY: VIO ±150µV
  • LOW SUPPLY CURRENT: 12.6mA
  • HIGH GAIN BANDWIDTH PRODUCT: 1750MHz
  • STABLE FOR GAINS ≥ 7
  • APPLICATIONS
    • HIGH DYNAMIC RANGE ADC PREAMPS
    • LOW–NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
    • WIDEBAND, HIGH GAIN AMPLIFIERS
    • LOW–NOISE DIFFERENTIAL RECEIVERS
    • VDSL LINE RECEIVERS
    • ULTRASOUND CHANNEL AMPLIFIERS
    • SECURITY SENSOR FRONT ENDS
    • UPGRADE FOR THE OPA686, CLC425, AND LMH6624

All trademarks are the property of their respective owners.

The OPA846 combines very high gain bandwidth and large signal performance with very low input voltage noise, while dissipating a low 12.6mA supply current. The classical differential input stage, along with two stages of forward gain and a high power output stage, combine to make the OPA846 an exceptionally low distortion amplifier with excellent DC accuracy and output drive. The voltage-feedback architecture allows all standard op amp applications to be implemented with very high performance.

The combination of low input voltage and current noise, along with a 1.75GHz gain bandwidth product, make the OPA846 an ideal amplifier for wideband transimpedance stages. As a voltage gain stage, the OPA846 is optimized for a flat response at a gain of +10 and is stable down to a gain of +7.

A new external compensation technique can be used to give a very flat frequency response below the minimum stable gain for the OPA846, further improving its already exceptional distortion performance. Using this compensation makes the OPA846 one of the premier 12– to 16–bit Analog–to–Digital (A/D) converter input drivers. The supply current for the OPA846 is precisely trimmed to 12.6mA at +25°C. This, along with carefully defined supply current tempco in the input and output stages, combine to provide exceptional performance over the full specified temperature range.

The OPA846 combines very high gain bandwidth and large signal performance with very low input voltage noise, while dissipating a low 12.6mA supply current. The classical differential input stage, along with two stages of forward gain and a high power output stage, combine to make the OPA846 an exceptionally low distortion amplifier with excellent DC accuracy and output drive. The voltage-feedback architecture allows all standard op amp applications to be implemented with very high performance.

The combination of low input voltage and current noise, along with a 1.75GHz gain bandwidth product, make the OPA846 an ideal amplifier for wideband transimpedance stages. As a voltage gain stage, the OPA846 is optimized for a flat response at a gain of +10 and is stable down to a gain of +7.

A new external compensation technique can be used to give a very flat frequency response below the minimum stable gain for the OPA846, further improving its already exceptional distortion performance. Using this compensation makes the OPA846 one of the premier 12– to 16–bit Analog–to–Digital (A/D) converter input drivers. The supply current for the OPA846 is precisely trimmed to 12.6mA at +25°C. This, along with carefully defined supply current tempco in the input and output stages, combine to provide exceptional performance over the full specified temperature range.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt Wideband, Low Noise, Voltage-Feedback Operational Amplifier datasheet (Rev. E) 30.12.2008
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28.03.2017
Benutzerhandbuch DEM-OPA-SO-1A User's Guide (Rev. B) 12.04.2012
Benutzerhandbuch DEM-OPA-SO-1B User's Guide (Rev. D) 12.04.2012
Benutzerhandbuch DEM-OPA-SOT-1A User's Guide (Rev. B) 12.04.2012
Anwendungshinweis Transimpedance Considerations for High-Speed Operational Amplifiers 22.11.2009
Benutzerhandbuch DEM-OPA-SOT-1B User's Guide (Rev. B) 12.04.2006
Analog Design Journal Using a decompensated op amp for improved performance 11.03.2005
Anwendungshinweis Noise Analysis for High Speed Op Amps (Rev. A) 17.01.2005
Anwendungshinweis ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers 22.04.2004
Anwendungshinweis Measuring Board Parasitics in High-Speed Analog Design 07.07.2003

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

DEM-OPA-SO-1B — Evaluierungsmodul mit einem Operationsverstärker für SO-8-Gehäuse (nicht invertierend)

The DEM-OPA-SO-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

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Evaluierungsplatine

DEM-OPA-SOT-1B — Einzel-Operationsverstärker-Evaluierungsmodul für das Gehäuse SOT23-5/6 (nicht-invertierend)

The DEM-OPA-SOT-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the SOT23 (DBV) package.

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Simulationsmodell

OPA846 PSpice Model (Rev. C)

SBOC005C.ZIP (40 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

OPA846 TINA-TI Reference Design (Rev. B)

SBOC097B.TSC (98 KB) - TINA-TI-Referenzdesign
Unterstützte Produkte und Hardware
Simulationsmodell

OPA846 TINA-TI Spice Model (Rev. A)

SBOM179A.ZIP (4 KB) - TINA-TI Spice-Modell
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Berechnungstool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

Der Rechner für Analogtechniker beschleunigt viele der sich wiederholenden Berechnungen, die Entwickler von analogen Schaltungsdesigns regelmäßig durchführen müssen. Dieses PC-basierte Tool bietet eine grafische Schnittstelle mit einer Liste verschiedener gebräuchlicher Berechnungen. Das Spektrum (...)

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian

Bestellen & Qualität

Support und Schulungen

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