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THS3470

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Hochgeschwindigkeits-Leistungsverstärker mit 60 V, 100 MHz, 1 A Ausgangsstrom

Produktdetails

Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 60 GBW (typ) (MHz) 100 BW at Acl (MHz) 160 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6500 Vn at flatband (typ) (nV√Hz) 1.7 Vn at 1 kHz (typ) (nV√Hz) 3.15 Iq per channel (typ) (mA) 33 Vos (offset voltage at 25°C) (max) (mV) 1.1 Rail-to-rail No Features Adj Current Limit, Error Flag, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 72 Input bias current (max) (pA) 18000000 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 1000 2nd harmonic (dBc) 90 3rd harmonic (dBc) 79 Frequency of harmonic distortion measurement (MHz) 10
Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 60 GBW (typ) (MHz) 100 BW at Acl (MHz) 160 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6500 Vn at flatband (typ) (nV√Hz) 1.7 Vn at 1 kHz (typ) (nV√Hz) 3.15 Iq per channel (typ) (mA) 33 Vos (offset voltage at 25°C) (max) (mV) 1.1 Rail-to-rail No Features Adj Current Limit, Error Flag, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 72 Input bias current (max) (pA) 18000000 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 1000 2nd harmonic (dBc) 90 3rd harmonic (dBc) 79 Frequency of harmonic distortion measurement (MHz) 10
VQFN (REB) 42 49 mm² (7 mm × 7 mm)
  • Bandwidth (VS = ±20V, RFB = 1.2kΩ):

    • Small-signal: 70MHz (VO = 2VPP)
    • Large-signal: 45MHz (VO = 20VPP)
    • Large-signal: 22MHz (VS = ±30V, VO = 50VPP, RF = 2kΩ)
  • Slew rate (20-80%):

    • 3000V/µs (RF = 1.2kΩ, CL = 300pF)
    • 2000V/µs (RF = 2kΩ, CL = 1nF)
    • 6500V/µs (Peak, RF = 1.2kΩ, RL = 100Ω)
  • Output current:

    • Linear output current: ±1.35A
    • Peak output current: 2A
    • 250mV VOUT swing in linear range (IOUT = ±1A, VO = ±25V, VS = ±30V)
  • Diagnostic features:

    • Programmable current limit (200mA to 1.5A, separate source and sink)
    • Die temperature and current output monitoring
    • Diagnostic flags (temperature, current source, current sink)
  • Bandwidth (VS = ±20V, RFB = 1.2kΩ):

    • Small-signal: 70MHz (VO = 2VPP)
    • Large-signal: 45MHz (VO = 20VPP)
    • Large-signal: 22MHz (VS = ±30V, VO = 50VPP, RF = 2kΩ)
  • Slew rate (20-80%):

    • 3000V/µs (RF = 1.2kΩ, CL = 300pF)
    • 2000V/µs (RF = 2kΩ, CL = 1nF)
    • 6500V/µs (Peak, RF = 1.2kΩ, RL = 100Ω)
  • Output current:

    • Linear output current: ±1.35A
    • Peak output current: 2A
    • 250mV VOUT swing in linear range (IOUT = ±1A, VO = ±25V, VS = ±30V)
  • Diagnostic features:

    • Programmable current limit (200mA to 1.5A, separate source and sink)
    • Die temperature and current output monitoring
    • Diagnostic flags (temperature, current source, current sink)

The THS3470 is a high-speed current-feedback amplifier (CFA) with a high linear-output current drive (1.35A), high slew rate (6500V/µs peak), and wide supply range (60V). The device is stable over a wide range of capacitive loads and supports up to 2A of peak output current that these applications require. The THS3470 has a bandwidth of 70MHz with low-noise and distortion providing great large-signal performance for heavy resistive loads as well.

In addition to high speed and power performance, the THS3470 features a number of useful features such as temperature monitoring, output current monitoring, output current limiting, and output current protection. The output current features of the device can be manually enabled or driven by various flag outputs from the device providing even greater modularity in the use case of the device.

The THS3470 is available in a VQFN-42 (REB) package, providing small-size with an exposed top-side thermal pad for direct heat transfer to a heat sink. The THS3470 is characterized for operation over the wide temperature range of –40°C to +125°C.

The THS3470 is a high-speed current-feedback amplifier (CFA) with a high linear-output current drive (1.35A), high slew rate (6500V/µs peak), and wide supply range (60V). The device is stable over a wide range of capacitive loads and supports up to 2A of peak output current that these applications require. The THS3470 has a bandwidth of 70MHz with low-noise and distortion providing great large-signal performance for heavy resistive loads as well.

In addition to high speed and power performance, the THS3470 features a number of useful features such as temperature monitoring, output current monitoring, output current limiting, and output current protection. The output current features of the device can be manually enabled or driven by various flag outputs from the device providing even greater modularity in the use case of the device.

The THS3470 is available in a VQFN-42 (REB) package, providing small-size with an exposed top-side thermal pad for direct heat transfer to a heat sink. The THS3470 is characterized for operation over the wide temperature range of –40°C to +125°C.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt THS3470 60V, 1A, 70MHz, 6500V/μs, High-Speed Power Amplifier datasheet (Rev. A) PDF | HTML 23.10.2025
Zertifikat THS3470REBEVM EU Declaration of Conformity (DoC) 06.02.2025

Design und Entwicklung

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Evaluierungsplatine

THS3470REBEVM — THS3470 – Evaluierungsmodul

THS3470EVM ist ein Evaluierungsmodul (EVM), das für die einfache Messung und Einrichtung des Hochgeschwindigkeits-Leistungsverstärkers THS3470 mit 60 V, 1 A und 100 MHz entwickelt wurde. Zur Platine gehören Anweisungen zum einfachen Konfigurieren von Eingangs- und Ausgangsverbindungen, einfache (...)

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THS3470 TINA-TI Reference Design

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