! ! MAXIM INTEGRATED PRODUCTS ! MAX2640/MAX2641 400MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers ! !Table 1. MAX2640 Typical Scattering Parameters at Vcc=+3V, TA = +25oC !Freq(MHz) LNA (S11) LNA (S21) LNA (S12) LNA (S22) ! Mag Phase Mag Phase Mag Phase Mag Phase # MHZ S MA R 50 400 0.907 -35.1 4.62 109.1 0.001 13.5 0.302 108.4 500 0.882 -43.1 4.70 90.4 0.001 64.7 0.33 93.6 600 0.858 -50.8 4.76 70.7 0.001 55.2 0.352 81.5 700 0.832 -58.1 4.80 50.6 0.002 39.4 0.365 69.4 800 0.810 -64.9 4.85 29.5 0.004 64.2 0.384 56.8 900 0.788 -71.0 4.77 9.2 0.005 36.3 0.396 44.7 1000 0.771 -76.6 4.74 -12.0 0.007 28.0 0.412 33.5 1100 0.749 -82.3 4.55 -32.4 0.010 12.3 0.436 21.9 1200 0.735 -88.0 4.48 -53.4 0.013 -10.6 0.455 10.7 1300 0.720 -93.4 4.24 -75.9 0.015 -28.2 0.469 -0.2 1400 0.702 -98.8 4.17 -94.9 0.021 -42.9 0.482 -9.9 1500 0.688 -104.9 3.81 -117.5 0.024 -59.8 0.489 -20.2 !Table 2. MAX2641 Typical Scattering Parameters at Vcc=+3V, TA = +25oC !Freq(MHz) LNA (S11) LNA (S21) LNA (S12) LNA (S22) ! Mag Phase Mag Phase Mag Phase Mag Phase 1500 0.734 -75.5 4.397 -90.5 0.013 -80.3 0.535 17.7 1600 0.717 -80.3 4.209 -109.8 0.016 -91.9 0.514 8.6 1700 0.695 -85.3 4.193 -131.6 0.018 -116.5 0.513 -0.5 1800 0.678 -90.6 3.876 -150.0 0.021 -128.7 0.510 -10.6 1900 0.661 -96.6 3.801 -173.5 0.023 -150.6 0.493 -21.6 2000 0.646 -102.6 3.456 166.9 0.026 -166.6 0.470 -32.0 2100 0.632 -108.8 3.302 146.4 0.028 171.7 0.431 -43.4 2200 0.620 -114.0 2.981 123.6 0.029 150.7 0.403 -56.1 2300 0.610 -119.4 2.781 105.3 0.033 132.2 0.374 -69.4 2400 0.604 -124.6 2.430 82.9 0.032 111.2 0.338 -86.2 2500 0.603 -128.4 2.118 64.7 0.030 95.7 0.316 -98.3 !Table 3. MAX2640 Typical Noise Parameters at Vcc=+3V, TA = +25oC !Freq NFMIN |Topt|