For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

19

HMC980LP4E

ACTIVE BIAS CONTROLLER

HIGH CURRENT

v01.0911

Figure 3c. Enhancement Mode Amplifier Typical Application Circuit (Mode 3)

Table 3 - List of Bias Settings for Various Hittite Amplifiers

Hittite Part Number

VDRAIN

(V)

VDD

(V)

IDRAIN

(mA)

RSENSE

(kOhm)

R4

(kOhm)

R3

(kOhm)

VG2

(V)

S1

S0

Gain Blocks & Drivers

HMC-AUH256

5

5.83

295

0.508

open

open

-

GND

GND

LNAs

HMC-ALH435

5

5.08

30

5.000

6.13

5

1.5

GND

GND

HMC-ALH444

5

5.15

55

2.727

5.95

5

1.5

GND

GND

HMC490

5

5.56

200

0.750

open

open

-

GND

GND

HMC490LP5

5

5.56

200

0.750

open

open

-

GND

GND

HMC594

6

6.28

100

1.500

open

open

-

GND

GND

HMC594LC3B

6

6.28

100

1.500

open

open

-

GND

GND

HMC609

6

6.48

170

0.882

open

open

-

GND

GND

HMC609LC4

6

6.48

170

0.882

open

open

-

GND

GND

HMC753LP4E

5

5.15

55

2.727

5.95

5

1.5

GND

GND

Linear & Power

HMC-ABH209

5

5.22

80

1.875

open

open

-

GND

GND

HMC-ABH264

5

5.34

120

1.250

open

open

-

GND

GND

HMC442

5

5.24

85

1.765

open

open

-

GND

GND

HMC442LC3B

5

5.24

84

1.786

open

open

-

GND

GND

For biasing Hittite amplifiers compatable with HMC980LP4E refer to the Table 3, where values of the external

components are provided on typical application circuit shown in Figure 3a.