HMC539A 0.25 dB LSB GaAs MMIC 5-BIT Digital Positive Control Attenuator, DC - 4 GHz

The HMC539ALP3/539ALP3E is a broadband 5-bit GaAs IC digital attenuator in a low cost leadless surface mount package. This single positive control line per bit digital attenuator utilizes an off chip AC ground capacitor for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 4 GHz, the insertion loss is less than 0.7 dB typical. The attenuator bit values are 0.25 (LSB), 0.5, 1, 2, and 4 dB for a total attenuation of 7.75 dB. Attenuation accuracy is excellent at ± 0.05 dB typical step error. The attenu- ator also features a high IIP3 of +62 dBm. Five TTL/ CMOS control inputs are used to select each attenuation state. A single Vdd bias of +3V to +5V is required.

Applications

Features and Benefits

0.25 dB LSB steps to 7.75 dB

± 0.05 dB typical step error

Low insertion loss: 0.7 dB

High IP3: +62 dBm

Single control line per bit

TTL/CMOS compatible control

Single +3V to +5V supply

3x3 mm SMT package

RF & Microwave

Digital Step Attenuators

Data Sheets

Document	note
HMC539ALP3E: 0.25 dB LSB GaAs MMIC 5-Bit Digital Positive Control Attenuator, DC to 4 GHz Data Sheet (Rev. 0)	PDF 488.4 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
HMC539ALP3 Production	HCP-16 ld QFN (3x3mm w/1.725mm ep)	OTH 50	-40 to 85C	6.66	5.4	N
HMC539ALP3E Production	HCP-16 ld QFN (3x3mm w/1.725mm ep)	OTH 50	-40 to 85C	5.22	4.27	Y
HMC539ALP3ETR Production	HCP-16 ld QFN (3x3mm w/1.725mm ep)	REEL 500	-40 to 85C	5.22	4.27	Y
HMC539ALP3TR Production	HCP-16 ld QFN (3x3mm w/1.725mm ep)	REEL 500	-40 to 85C	6.66	5.4	N

Evaluation Boards

Part Number	Description	Price	RoHS
EV1HMC539ALP3	Evaluation Board	99	Y

HMC539ALP3E: 0.25 dB LSB GaAs MMIC 5-Bit Digital Positive Control Attenuator, DC to 4 GHz Data Sheet (Rev. 0) hmc539a