SA5205AD

Wide-band high-frequency amplifier

**DESCRIPTION**

The NE/SA/SE5205A family of wideband amplifiers replace the NE/SA/SE5205 family. The ‘A’ parts are fabricated on a rugged 2µm bipolar process featuring excellent statistical process control. Electrical performance is nominally identical to the original parts. The NE/SA/SE5205A is a high-frequency amplifier with a fixed insertion gain of 20dB. The gain is flat to ±0.5dB from DC to 450MHz, and the -3dB bandwidth is greater than 600MHz in the EC package. This performance makes the amplifier ideal for cable TV applications. For lower frequency applications, the part is also

available in industrial standard dual in-line and small outline packages. The NE/SA/SE5205A operates with a single supply of 6V, and only draws 24mA of supply current, which is much less than comparable hybrid parts. The noise figure is 4.8dB in a 75Ω system and 6dB in a 50Ω system.

**FEATURES**

• 600MHz bandwidth

• 20dB insertion gain

• 4.8dB 6dB noise figure ZO=75Ω ZO=50Ω

• No external components required

• Input and output impedances matched to 50/75Ω systems

• Surface mount package available

• MIL-STD processing available

• 2000V ESD protection

**APPLICATIONS**

• 75Ω cable TV decoder boxes

• Antenna amplifiers

• Amplified splitters

• Signal generators

• Frequency counters

• Oscilloscopes

• Signal analyzers

• Broad-band LANs

• Fiber-optics

• Modems

• Mobile radio

• Security systems

• Telecommunications