CLC425

Contents

The CLC425 combines a wide bandwidth (1.9GBW) with a very low input noise (1.05nV/, 1.6pA/) and low dc errors (100µV V_OS, 2µV/°C drift) to provide a very precise, wide dynamic range op amp offering closed-loop gains of >=10.

Singularly suited for very wideband high gain operation, the CLC425 employs a traditional voltage feedback topology providing all the benefits of balanced inputs, such as low offsets and drifts, as well as a 96dB open loop gain, a 100dB CMRR and a 95dB PSRR.

The CLC425 also offers great flexibility with its externally adjustable supply current, allowing designers to easily choose the optimum set of power, bandwidth, noise and distortion performance. Operating from ±5V power supplies, the CLC425 defaults to a 15mA quiescent current, or by adding one external resistor, the supply current can be adjusted to less than 5mA.

The CLC425's combination of ultra low noise, wide gain bandwidth, high slew rate and low dc errors will enable applications in areas such as medical diagnostic ultrasound, magnetic tape & disk storage, communications and opto-electronics to achieve maximum high frequency signal-to-noise ratios.

Enhanced Solutions (Military/Aerospace)

SMD Number: 5962-93259

Space level versions also available.

For more information, visit http://www.national.com/mil

• 1.9GHz gain-bandwidth product
• 1.05nV/input voltage noise
• 0.8pA/@ I_CC <= 5mA
• 100µV input offset voltage, 2µV/°C drift
• 350V/µs slew rate
• 15mA to 5mA adjustable supply current
• Gain range ±10 to ±1,000V/V
• Evaluation boards & simulation macromodel
• 0.9dB NF @ R_s = 700

• Instrumentation sense amplifiers
• Ultrasound pre-amps
• Magnetic tape & disk pre-amps
• Photo diode transimpedance amplifiers
• Wide band active filters
• Low noise figure RF amplifiers
• Professional audio systems
• Low noise loop filters for PLLs