HMC270MS8G
/
270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
Typical Applications
The HMC270MS8G / HMC270MS8GE is ideal for
DC - 8.0 GHz applications:
• CATV
• MMDS & WirelessLAN
• Wireless Local Loop
Features
Broadband Performance: DC - 8 GHz
Very High Isolation: 45 dB @ 6 GHz
Non-Reflective Design
Low Cost MSOP-8 Package: 14.8 mm
2
Functional Diagram
General Description
The HMC270MS8G & HMC270MS8GE are broad-
band non-reflective GaAs SPDT switches in 8
lead MSOP grounded base surface mount plastic
packages. Covering DC to 8 GHz, the switch offers
excellent isolation from 70 to 35 dB. The negative
control voltage of -5 volts allows operation down
to DC. If positive control is required along with high
isolation, see the DC to 3.5 GHz HMC284MS8G non-
reflective SPDT.
10
SWITCHES - SMT
Electrical Specifi cations,
T
A
= +25° C, With 0/-5V Control, 50 Ohm system
Parameter
Insertion Loss
Frequency
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
“On State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
0.5 - 8.0 GHz
0.5 - 8.0 GHz
DC - 8.0 GHz
20
50
ns
ns
43
42
37
28
11
9
7
15
13
10
20
33
Min.
Typ.
0.8
1.0
1.5
48
47
45
33
14
12
10
20
18
15
23
36
Max.
1.2
1.7
2.4
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
Isolation
Return Loss
Return Loss RF1, RF2
Input Power for 1 dB Compression
Input third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
“Off State”
10 - 144
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
HMC270MS8G
/
270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
Insertion Loss
0
Isolation
0
-10
INSERTION LOSS (dB)
-1
ISOLATION (dB)
-20
-30
-40
-50
-60
-5
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
-70
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
RF1
RF2
-2
-3
RF1
RF2
-4
10
SWITCHES - SMT
10 - 145
Return Loss
0
RFC
RF1,2 On
RF1,2 Off
0.1 and 1 dB Input Compression Point
26
COMPRESSION POINT (dBm)
-5
RETURN LOSS (dB)
24
-10
22
1 dB Compression Point
0.1 dB Compression Point
-15
20
-20
-25
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
18
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
Input Third Order Intercept Point
45
THIRD ORDER INTERCEPT (dBm)
40
35
30
25
0
1
2
3
4
5
6
7
8
9
FREQUENCY (GHz)
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
HMC270MS8G
/
270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
Control Voltages
State
Low
High
Bias Condition
0 to -0.2V @ 10 uA Typ.
-5V @ 35 uA Typ. to -7V @ 100 uA Typ (±0.5 Vdc)
Truth Table
Control Input
A
High
Low
B
Low
High
Signal Path State
RFC to RF1
ON
OFF
RFC to RF2
OFF
ON
RFC, RF1, & RF2 should be at <100 mV DC potential.
Otherwise, DC blocking capacitors are recommended.
Choose value for lowest frequency of operation.
Do not “HOT” switch power levels >+13 dBm
(Vctl = 0/-5Vdc)
10
SWITCHES - SMT
10 - 146
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
HMC270MS8G
/
270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
Absolute Maximum Ratings
Max RF Input Power, Vctl = -5V
Control Voltage Range
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
+24 dBm
+0.5 to -7.5 Vdc
-65 to +150 °C
-40 to +85 °C
Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
10
SWITCHES - SMT
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
Package Information
Part Number
HMC70MS8G
HMC270MS8GE
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H270
XXXX
H270
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
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
10 - 147
HMC270MS8G
/
270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
Suggested Driver Circuit for HMC270MS8G
10
SWITCHES - SMT
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current while translating from stan-
dard positive voltage TTL or CMOS logic to negative voltage GaAs IC logic.
10 - 148
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
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