Cascadable Amplifier 20 to 500 MHz A81-3/ SMA81-3 V2 Features • • • • Product Image HIGH REVERSE ISOLATION >35 dBm (TYP.) EXCEPTIONAL OUTPUT VSWR 1.1:1 (TYP.) LOW NOISE 3.6 dB (TYP.) MEDIUM OUTPUT LEVEL +8.0 dBm (TYP.) Description The A81-3 RF amplifier is a discrete hybrid design, which uses thin film manufacturing processes for accurate performance and high reliability. The 2 stage silicon bipolar feedback amplifier design displays impressive performance over a broadband frequency range. An isolation transformer is used in the feedback loop, with the benefit of high reverse isolation. Both TO-8 and Surface Mount packages are hermetically sealed, and MIL-STD-883 environmental screening is available. Ordering Information Part Number Package A81-3 TO-8 SMA81-3 Surface Mount CA81-3 SMA Connectorized Electrical Specifications: Z0 = 50Ω Ω, VCC = +15 VDC Typical Parameter Absolute Maximum Ratings Parameter Absolute Maximum Storage Temperature -62ºC to +125ºC Case Temperature 125ºC Guaranteed Units 25ºC 0º to 50ºC -54º to +85ºC* Frequency MHz 10-500 20-500 20-500 Small Signal Gain (min) dB 17.0 16.0 15.5 Gain Flatness (max) dB ±0.2 Reverse Isolation dB 36 Noise Figure (max) dB 4.0 ±0.5 4.5 ±0.7 5.0 DC Voltage +17 V Continuous Input Power +10 dBm Short Term Input power (1 minute max.) 50 mW Peak Power (3 µsec max.) 0.5 W “S” Series Burn-In Temperature (case) 125ºC Power Output @ 1 dB comp. (min) dBm 8.0 IP3 dBm +20 IP2 dBm +28 Parameter Rating Second Order Harmonic IP dBm +32 Thermal Resistance θjc 45ºC/W VSWR Input / Output (max) DC Current @ 15 Volts (max) mA 7.5 7.0 Thermal Data: VCC = +15 VDC 1.5:1 / 1.1:1 1.8:1 / 1.3:1 2.0:1 / 1.3:1 Transistor Power Dissipation Pd 0.157 W 29 31 33 Junction Temperature Rise Above Case Tjc 7ºC * Over temperature performance limits for part number CA81-3, guaranteed from 0oC to +50oC only. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Cascadable Amplifier 20 to 500 MHz Typical Performance Curves at +25°C A81-3/ SMA81-3 V2 Outline Drawing: TO-8 * WEIGHT: 1 gram (0.04 oz.) max Outline Drawing: Surface Mount * WEIGHT: 1 gram (0.04 oz.) max Outline Drawing: SMA Connectorized * WEIGHT: 19 grams (0.67 oz.) max ∗ Dimensions are inches (millimeters) ±0.015 (0.38) unless otherwise specified. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.