For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

5

HMC499LC4

v05.0514

SMT PHEMT MEDIUM POWER AMPLIFIER

21 - 32 GHz

pin number

function

Description

interface schematic

1, 5 - 8, 10 - 14,

18, 20, 22, 24

n/C

no connection required. These pins may be connected to rf/

DC ground without affecting performance.

2, 4, 15, 17

GnD

package bottom has an exposed metal paddle that must also

be connected to rf/DC ground.

3

rfin

This pin is AC coupled

and matched to 50 ohms.

9

Vgg

Gate control for amplifier. Adjust to achieve id of 200 mA.

please follow “mmiC Amplifier Biasing procedure”

Application note. external bypass capacitors of 100 pf,

1000 pf and 2.2

16

RFOUT

This pad is AC coupled

and matched to 50 ohms.

23, 21, 19

Vdd1, Vdd2, Vdd3

power supply Voltage for the amplifier. external bypass

capacitors of 100 pf, 1000pf, and 2.2

Pin Descriptions

Application Circuit

Component

Value

C1

100 pf

C2

1,000 pf

C3

2.2 µf

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D