CLC426 Datasheet | National Semiconductor

Description The CLC426 bines an enhanced voltage-feedback architecture with an advanced plementary bipolar process to provide a high-speed op amp with very low noise (1.6n V/√Hz & 2.0p A/√Hz) and distortion (-62/-68d Bc 2nd/3rd harmonics at 1Vpp and 10MHz). Providing a wide 230MHz gain-bandwidth product, a fast 400V/µs 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 pensated for gains ≥ 2V/V and can easily be externally pensated 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 bination 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). Features s s s s s s s Wide gain-bandwidth product: 230MHz Ultra-low input voltage noise: 1.6n V/√Hz Very low harmonic distortion: -62/-68d Bc Fast slew rate: 400V/µs Adjustable supply current Dual ±2.5 to ±5V or single 5 to 12V supplies Externally pensatable Applications Active filters & integrators Ultrasound s Low-power portable video s ADC/DAC buffer s Wide dynamic range amp s Differential amps s Pulse/RF amp s s Typical Application Wide Dynamic Range Sallen-Key Band Pass Filter 2nd-Order (20MHz, Q=10, G=2) © 1999 National Semiconductor Corporation Printed in the U.S.A. Pinout DIP & SOIC NC Vinv Vnon-inv -Vcc 1 2 3 4 + 8 Rp (optional) 7...