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

OPA818

AKTIV

Dekompensierter Operationsverstärker mit 2,7 GHz, 13 V, 7 V/V, FET-Eingang

Produktdetails

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) WSON (DRG) 8 9 mm² (3 mm × 3 mm)
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.

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