HMC519LC4 v04.1017 Gaas PHEMT MMIC LOW NOIsEaMPLIFIER, 18 - 31 GHzPad Descriptions Pad Number Function Description Interface Schematic T M 1, 5 - 14, 18, N/C Not Connected 20, 22, 24 Package bottom has exposed metal paddle that 2, 4, 15, 17 GND must be connected to RF/DC ground. S - S R This pad is AC coupled 3 RFIN IE and matched to 50 Ohms This pad is AC coupled 16 RFOUT LIF and matched to 50 Ohms P M Power Supply Voltage for the amplifier. See application 19, 21, 23 Vdd3, Vdd2, Vdd1 circuit for required external components. E A IS O application Circuit W N LO For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 5 Phone: 781-329-4700 • Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D