HMC498 v03.0713 GaAs pHEMT MMICPOWER AMPLIFIER, 17 - 24 GHzPad Descriptions Pad Number Function Description Interface Schematic IP H 1 RFIN This pad is AC coupled and matched to 50 Ohms. S - C Power Supply Voltage for the amplifier. External bypass 2 - 4 Vdd1, Vdd2, Vdd3 capacitors of 100 pF and 0.01 µF are required. R IE 5 RFOUT This pad is AC coupled and matched to 50 Ohms. LIF P Gate control for amplifier. Adjust to achieve Idd of 250mA. M Please follow “MMIC Amplifier Biasing Procedure” Appli- 6 Vgg cation Note. External bypass capacitors of 100 pF and 0.01 µF are required. R A E W Die Bottom GND Die bottom must be connected to RF/DC ground. O Assembly Diagram R & P A E IN L Inf F or o m r p atio r n ifc ur e n , d ishe e d lbiv y e A r n y a alog n D d t evic o p es is la beclie o eved rd to ebre sa: H ccur iattti e tae M nd re ilicarbloew . H a o ve C wever, o n rp o For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other oration, 2 Elizabeth Drive, Chelmsford, MA 01824 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 978-250-3343 Fax: 978-250-3373 O rights of third parties that may result from its use. Specifications subject to change without notice. No P rd hone e r O : 7 n 81- -3li 2n 9 e a -47 t w 0 w 0 • O w rd .h e it r o t niltie n .c e ao t m 5 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. www.analog.com Application Support: Pho Trademarks and registered trademarks are the property of their respective owners. ne: 978-250-33 A 4 p 3 o plica r a tio p n S p u s p @ po h rt itt : P ite ho . n c e o : 1m -800-ANALOG-D