HMC712 / HMC712LP3CE Voltage Variable Attenuator Chip or SMT, 5 GHz to 26.5 GHz or 30 GHz

The HMC712 devices are absorptive, voltage variable attenuators (VVAs) which operate from 5 GHz to 26.5 GHz or 30 GHz and are ideal in designs when an analog dc control signal must be used to control RF signal levels over a 28 dB or 30 dB amplitude rate. They feature shunt-type attenuators which are controlled by two analog voltages, VCTRL1 and VCTRL2. Optimum linearity performance of the attenuator is achieved by first varying VCTRL of the first attenuation stage from −3 V to 0 V with VCTRL2 fixed at −3 V. The control voltage of the second attenuation stage, VCTRL2, should then be varied from −3 V to 0 V, with VCTRL1 fixed at 0 V. However, if the VCTRL1 and VCTRL2 pins are connected together, it is possible to achieve the full analog attenuation range with only a small degradation in input IP3 performance. Applications include AGC circuits and temperature compensation of multiple gain stages in microwave, point-to-point, and VSAT radios. The voltage variable attenuator is housed in an RoHS compliant, 3 × 3 mm, QFN, leadless package.

Applications

Point-to-point radios
VSAT radio
Test instrumentation
Microwave sensors
Military, ECM, and radar

Features and Benefits

Wide bandwidth: 5 GHz to 26.5 GHz or 30 GHz
Excellent linearity: +28 dBm input P1dB
Wide attenuation range: 28 dB, 30 dB
Absorptive topology

Single or dual control operation
Compact die size: 1.4 × 1.2 × 0.1 mm
16-lead, 3 × 3 mm, surface-mount technology (SMT) package

RF & Microwave

Voltage Variable Attenuators

Data Sheets

Document	note
HMC712LP3CE Data Sheet	PDF 871.21 K
HMC712 Die Data Sheet	PDF 787.62 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
HMC712 Last Time Buy	CHIPS OR DIE	REEL 50	-55 to 85C	0	0	Y
HMC712LP3CE Last Time Buy	16 ld QFN (3x3mm w/1.7mm ep)	OTH 50	-55 to 85C	26.09	21.14	Y
HMC712LP3CETR Last Time Buy	16 ld QFN (3x3mm w/1.7mm ep)	REEL 500	-55 to 85C	26.09	21.14	Y