OPA4820 - Quad, Unity-Gain, Low-Noise, Voltage-Feedback Operational Amplifier

The OPA4820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications.

Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps.

Exceptionally low dG/dP (0.01%/0.03°) supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14.

Products containing the "OPA4820" keyword are: OPA4820ID , OPA4820ID , OPA4820IDG4 , OPA4820IDG4 , OPA4820IDR , OPA4820IDR , OPA4820IDRG4 , OPA4820IPWR , OPA4820IPWRG4 , OPA4820IPWT , OPA4820IPWT , OPA4820IPWTG4

• HIGH BANDWIDTH: 220MHz (G = +2)
• HIGH OUTPUT CURRENT: ±85mA
• LOW INPUT NOISE: 2.5nV/Hz
• LOW SUPPLY CURRENT: 5.7mA/ch
• FLEXIBLE SUPPLY VOLTAGE:
  ±2V to ±6.3V Dual Supply
  +4V to +12.6V Single Supply
• EXCELLENT DC ACCURACY:
  • Maximum 25°C Input Offset Voltage = 0.8mV
  • Maximum 25°C Input Offset Current = 500nA
• APPLICATIONS
  • LOW–COST VIDEO LINE DRIVERS
  • ADC PREAMPS
  • ACTIVE FILTERS
  • LOW–NOISE INTEGRATORS
  • PORTABLE TEST EQUIPMENT
  • OPTICAL CHANNEL AMPLIFIERS
  • LOW–POWER, BASEBAND AMPLIFIERS
  • CCD IMAGING CHANNEL AMPLIFIERS
  • OPA4650 UPGRADE

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