HMC284AMS8G / HMC284AMS8GE
v01.0818
SPDT NoN-ReflecTive SwiTch
Dc - 3.5 Ghz
Typical Applications
the hMc284AMS8G / hMc284AMS8Ge is ideal for:
features
high isolation: >45 dB
Positive control: 0/+5V
Non-Reflective Design
Ultra Small Package: MSOP8G
SwitcheS - SPDt - SMt
• cellular/PcS Base Stations
• 2.4 Ghz iSM
• 3.5 Ghz wireless Local Loop
functional Diagram
General Description
the hMc284AMS8G & hMc284AMS8Ge are low-
cost SPDt switches in 8-lead grounded base MSOP
packages. the design has been optimized to provide
high isolation with minimal insertion loss for medium
and low power applications. On-chip circuitry allows
positive voltage control operation at very low Dc cur-
rents with control inputs compatible with cMOS and
most ttL logic families. in the “OFF” state, RF1 and
RF2 are non-reflective.
electrical Specifications,
T
A
= +25° c, vctl = 0/+5 vdc, 50 ohm System
Parameter
insertion Loss
RF1 & RF2
RF1 / RF2
RF1 / RF2
RF1 & RF2
Frequency
Dc - 2.0 Ghz
Dc - 3.0 Ghz
Dc - 3.5 Ghz
Dc - 2.0 Ghz
Dc - 2.5 Ghz
Dc - 3.0 Ghz
Dc - 3.5 Ghz
Dc - 2.0 Ghz
Dc - 2.5 Ghz
Dc - 3.5 Ghz
0.5 - 3.5 Ghz
0.5 - 1.0 Ghz
0.5 - 3.5 Ghz
0.5 - 3.5 Ghz
Dc - 3.5 Ghz
tRiSe, tFALL (10/90% RF)
tON, tOFF (50% ctL to
10/90% RF)
5
20
ns
ns
41
38/41
34/36
30
21
13
10
10
20
18
43
Min.
typ.
0.5
0.6
0.7
45
44/45
42/45
40
25
22
17
15
30
29
50
Max.
0.8
0.9
1.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
isolation
Return Loss (On State)
Return Loss (Off State)
input Power for 1 dB compression
input third Order intercept
(two-tone input Power = 0 dBm each tone)
Switching Speed
1
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC284AMS8G / HMC284AMS8GE
v01.0818
SPDT NoN-ReflecTive SwiTch
Dc - 3.5 Ghz
insertion loss
0
-0.5
ISOLATION (dB)
-1
-1.5
-2
-2.5
-3
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
+25 C
-40 C
+85 C
isolation
0
-10
-20
-30
-40
-50
-60
-70
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
RF1
RF2
Return loss
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
-35
-40
-45
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
S11 (ON)
S22 (ON)
S22 (OFF)
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SwitcheS - SPDt - SMt
2
INSERTION LOSS (dB)
HMC284AMS8G / HMC284AMS8GE
v01.0818
SPDT NoN-ReflecTive SwiTch
Dc - 3.5 Ghz
compression vs frequency
carrier at 900 Mhz
carrier at 1900 Mhz
input Power for 0.1 dB
compression
(dBm)
27
input Power for 1.0 dB
compression
(dBm)
29
SwitcheS - SPDt - SMt
ctL input
(Vdc)
+5
input Power for 0.1 dB
compression
(dBm)
27
input Power for 1.0 dB
compression
(dBm)
30
caution:
Do not operate continuously at RF power input
greater than 1 dB compression. (Vctl = 0/+5 Vdc).
Distortion vs frequency
control input
(Vdc)
+5
third Order intercept (dBm)
0 dBm each tone
900 Mhz
50
1900 Mhz
50
Truth Table
control input*
A
(Vdc)
0
+5
*Control Input Tolerances are ±0.2 Vdc
control current
ia
(uA)
-0.2
0.2
ib
(uA)
0.2
-0.2
Signal Path State
RFc to
RF1
ON
OFF
RFc to
RF2
OFF
ON
B
(Vdc)
+5
0
Dc blocks are required at ports RFc, RF1, RF2.
3
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC284AMS8G / HMC284AMS8GE
v01.0818
SPDT NoN-ReflecTive SwiTch
Dc - 3.5 Ghz
Absolute Maximum Ratings
RF input Power (Vctl = 0/+5V)
control Voltage Range
hot Switch Power Level
(Vctl = 0/+5V)
channel temperature
thermal Resistance
(insertion Loss Path)
thermal Resistance
(terminated Path)
Storage temperature
Operating temperature
eSD Sensitivity (hBM)
+26 dBm
-0.5 to +7.5 Vdc
+18 dBm
150 °c
130 °c/w
252 °c/w
-65 to +150 °c
-40 to +85 °c
class 1A
outline Drawing
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
hMc284AMS8G
hMc284AMS8Ge
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
MSL3
MSL3
[1]
[2]
Package Marking
[3]
h284A
XXXX
h284A
XXXX
[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: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SwitcheS - SPDt - SMt
4
eLectROStAtic SeNSitiVe DeVice
OBSeRVe hANDLiNG PRecAUtiONS
HMC284AMS8G / HMC284AMS8GE
v01.0818
SPDT NoN-ReflecTive SwiTch
Dc - 3.5 Ghz
Typical Application circuit
SwitcheS - SPDt - SMt
Notes:
1. Set A/B control to 0/+5V, Vdd = +5V and use hct series logic to provide a ttL driver interface.
2. control inputs A/B can be driven directly with cMOS logic (hc) with Vdd = +5 Volts applied to the cMOS logic gates.
3. Dc blocking capacitors are required for each RF port as shown. capacitor value determines lowest frequency of operation.
4. highest RF signal power capability is achieved with Vdd = +7V and A/B set to 0/+7V.
5. Back side paddle must be connected to RF ground.
6. A grounded coplanar waveguide PcB layout technique is recommended to achieve high isolation. the component side
ground plane between RFc/grounded paddle and RF1/RF2 should be continuous, see below. there should be a continuous
ground plane under component side layout.
5
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
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