CLC428  Product Folder

The National CLC428 is a very high speed dual op amp that offers a traditional voltage-feedback topology featuring unity gain stability and slew enhanced circuitry. The CLC428's ultra low noise and very low harmonic distortion combine to form a very wide dynamic range op amp that operates from a single (5 to 12V) or dual (±5V) power supply.

Each of the CLC428's closely matched channels provides a 160MHz unity gain bandwidth with an ultra low input voltage noise density (2nV/). Very low 2nd/3rd harmonic distortion (-62dB) make the CLC428 a perfect wide dynamic range amplifier for matched I/Q channels.

With its fast and accurate settling (16ns to 0.1%), the CLC428 is also an excellent choice for wide dynamic range, anti-aliasing filters to buffer the inputs of hi-resolution analog-to-digital converters. Combining the CLC428's two tightly matched amplifiers in a single eight-pin SOIC reduces cost and board space for many composite amplifier applications such as active filters, differential line drivers/receivers, fast peak detectors and instrumentation amplifiers.

To reduce design times and assist in board layout, the CLC428 is supported by an evaluation board and a SPICE simulation model available from National.

• Wide unity gain bandwidth: 160MHz
• Ultra low noise: 2.0nV/
• Low Distortion: -78dBc 2nd (2MHz)
• Low Distortion: -62/-72dBc (10MHz)
• Settling time: 16ns to 0.1%
• Supply voltage range: ±2.5 to ±5 or single supply
• High output current: ±70mA

• General purpose dual op amp
• Low noise integrators
• Low noise active filters
• Diff-in/diff-out instrumentation amp
• Driver/receiver for transmission systems
• High speed detectors I/Q channel amplifiers