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The CLC426 combines an enhanced voltage-feedback architecture with an advanced complementary bipolar process to provide a high-speed op amp with very low noise (1.6nV/ÖHz & 2.0pA/Hz) and distortion (-62/-68dBc 2nd/3rd harmonics at 1Vpp and 10MHz). Providing a wide 230MHz gain-bandwidth product, a fast 400V/ms slew rate and very quick 16ns settling time to 0.05% , the CLC426 is the ideal choice for high speed applications requiring a very widedynamic range such as an input buffer for high-resolution analog-todigital converters.
The CLC426 is internally compensated for gains 2V/V and can easily be externally compensated for unity-gain stability in applications such as wideband low-noise integrators. The CLC426 is also equipped with external supply current adjustment which allows the user to optimize power, bandwidth, noise and distortion performance for each application.
The CLC426's combination of speed, low noise and distortion and low dc errors will allow high-speed signal conditioning applications to achieve the highest signal-to-noise performance. To reduce design times and assist board layout, the CLC426 is supported by an evaluation board and SPICE simulation model available from National. For even higher gain-bandwidth voltage-feedback op amps see the 1.9GHz CLC425 (Av 10V/V) or the 5.0GHz CLC422 (Av 30V/V).
CLC426 Maximum Ratings
supply voltage ±7V short circuit current (note 2) common-mode input voltage ±Vcc differential input voltage ±10V maximum junction temperature +150 storage temperature -65 to+150 lead temperature (soldering 10 sec) +300 ESD rating 2000V
CLC426 Features
·Wide gain-bandwidth product: 230MHz ·Ultra-low input voltage noise: 1.6nV/ÖHz ·Very low harmonic distortion: -62/-68dBc ·Fast slew rate: 400V/ms ·Adjustable supply current ·Dual ±2.5 to ±5V or single 5 to 12V supplies ·Externally compensatable
CLC426 Typical Application
·Active filters & integrators ·Ultrasound ·Low-power portable video ·ADC/DAC buffer ·Wide dynamic range amp ·Differential amps ·Pulse/RF amp