Datasheet HMC110 Datasheet (Hittite)

MICROWAVE CORPORATION

GaAs MMIC 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz

FEBRUARY 2001

HMC110

2

ATTENUATORS

DIE

Features

BANDWIDTH: DC-10 GHZ

LOW INSERTION LOSS : <6 dB

31 dB ATTENUATION RANGE

FAST SWITCHING: 6 nS

General Description

The HMC110 chip is a 5-bit digital attenua­tor with a 31 dB range in 1 dB steps. Each bit
is activated by applying 0V to port A and
disabled with -5 V to port A. Port B (as
applicable) is biased with the complement
of port A. Applications include military ECM
and communications as well as commercial
microwave radios. See SMT packaged ver­sions; HMC110G16 (hermetic) and
HMC110C14 (non hermetic).

Guaranteed Performance With 0/-5V Control, -55 to +85 deg C

Parameter Freq. Min. Typ. Max. Units

Reference Insertion Loss
Attenuation R ange DC - 10 GHz 27 31 dB

Return Loss DC - 2 GHz

Attenuation A ccuracy

1 - 7 dB States

8 - 15 dB States
16 - 23 dB States
24 - 31 dB States

Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)

InputPower for 0.2 dB
Comp.

InputThird Order Intercept Min Atten:

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

Min Atten:

Max Atten:

Max Atten:

DC - 5 GHz
DC - 10 GHz

12

DC - 10 GHz

DC - 10 GHz
DC - 10 GHz
DC - 10 GHz
DC - 10 GHz

DC - 10 GHz 3

0.5 - 10 GHz

0.5 - 10 GHz

8

+/- 0.5 dB +/- 5% of setting max.
+/- 0.6 dB +/- 5% of setting max.
+/- 0.6 dB +/- 8% of setting max.
+/-0.6 dB +/- 10% of setting max.

2 - 2

5.2

6.2

15
10

6

+22

+5

+44
+32

6.0

7.0

dB
dB

dB
dB

dB
dB
dB
dB

ns
ns

dBm
dBm

dBm
dBm

MICROWAVE CORPORATION

HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz

HMC110

FEBRUARY 2001

Insertion Loss

0

-2

-4

-6

-8

INSERTION LOSS (dB)

-10
0246810

FREQUENCY (GHz)

Relative Phase

90

70

50

31 dB

Relative Attenuation

0

-2

-4

-6

-8

-10

-12

-14

-16

-18

-20

-22

-24

-26

-28

-30

RELATIVE ATTENUATION (dB)

-32

-34

-36

0246810

FREQUENCY (GHz)

Return Loss

0

-10

2

ATTENUATORS

DIE

30

10

RELATIVE PHASE (DEG)

-10
0246810

FREQUENCY (GHz)

16 dB

8 dB

1 dB, 2 dB, 4 dB

-20

RETURN LOSS (dB)

-30
02 46 810

FREQUENCY (GHz)

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

2 - 3

MICROWAVE CORPORATION

HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz

FEBRUARY 2001

Schematic

HMC110

2

ATTENUATORS

DIE

RF1

A1 B1

4dB 1dB

A2

GNDGND GNDGNDGNDGND GNDGND GNDGND

Absolute Maximum Ratings

Control Voltage Range +0.5 to -8.5 Vdc
Storage Temperature -65 to +150 deg C
Operating Temperature -55 to +125 deg C

RF Input Power (0.5 - 4 GHz)
Insertion Loss State

Any Attenuation State

+27 dBm
+13 dBm

A3

2dB

B5

A4 B4

8dB

A5

16dB

RF2

HMC110

T ruth Table

Control Input

4dBBit 1dB 2dB 8dB Bit 16dB B it

A1 B1 A2 A3 A4 B4 A5 B5

Hi Lo Hi Hi Hi Lo Hi Lo Ref

Att
Set

Control V oltages

State Bias Condition

Low 0 to -0.2V@20uA Max
High -3V @50uA Typ to -8V@500uA Max

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

Hi Lo Lo Hi Hi Lo Hi Lo 1dB

Hi Lo Hi Lo Hi Lo Hi Lo 2dB

Lo Hi Hi Hi Hi Lo Hi Lo 4dB

Hi Lo Hi Hi Lo Hi Hi Lo 8dB

Hi Lo Hi Hi Hi Lo Lo Hi 16dB

Any combination of above states will provide an attenuation
approximately equal to the sum of the bits selected.

2 - 4

MICROWAVE CORPORATION

HMC110 5 - BIT DIGITAL ATTENUATOR DC - 10 GHz

Die Outline ( See page 8 - 2 and 8 - 3 DIE HANDLING NOTES)

1.676 (0.066)

0.178 (0.007)

0.102 (0.004)

0.864 (0.034)

0.279 (0.011)
RF1 RF2

9 equal spaces @ 0.152 (0.006) each

A1 B1

A2 A3 A4 B4 A5 B5 A6 B6

4306

HMC110

FEBRUARY 2001

0.127 (0.005)

2

ATTENUATORS

ALL DIMENSIONS IN MILLIMETERS (INCHES)
ALL TOLERANCES ARE ±0.025 (0.001)
DIE THICKNESS IS 0.203 (0.008), BACKSIDE IS NOT METALLIZED
BOND PADS ARE 0.100 (0.004) SQUARE
ALL UNLABELED BOND PADS ARE GROUND.
BOND PAD METALLIZATION: GOLD
BACKSIDE METALLIZATION : NONE

Suggested Driver Circuit

Vz=5.1V

Izt=50uA
COMPENSATED
DEVICES
CD4689

TTL
OR
CMOS

10K

VCC
GND GND

0.102 (0.004) 0.076 (0.003)

100Ω

100pF

VCC

74HCT04 (TTL)

74HC04 (CMOS)

-5 VDC

100

100pF

*

A

*

GaAs

ATTENUATOR

CONTROL

*

Ω

B

*

DIE

Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current.
* Recommended values to suppress unwanted RF signals at A/B control lines. You may adjust for switching
speed considerations.

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

2 - 5