Keysight 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch · 2019-12-04 · Keysight 1GG7-8251...
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Keysight 1GG7-8251DC to 8 GHz Terminated SPDT Packaged Switch
Features – RoHS compliant – Outputs terminated in 50 Ω
when off – Internal LED for faster settling – Frequency range: DC - 8 GHz – Insertion loss: 2.5 dB @ 8 GHz – Isolation:
> 70 dB @ 45 MHz > 30 dB @ 8 GHz
– Return loss: 25 dB (Both input and selected output) 15 dB unselected output
– Switching speed: < 20 μs (10% - 90% RF)
– P–1dB: 27 dBm – Harmonics (DC coupled):
< –80 dBc @ 10 dBm – QFN SMT package
– Package type: 3 x 3 mm MLF-16/QFN-16
– Package dimensions: 3 × 3 mm (118 × 118 mils)
– Package thickness: 0.90 mm (35 mils)
– Pad (lead) pitch: 0.5 mm (20 mils)
– Pad (lead) width: 0.25 mm (10 mils)
The 1GG7-8251 is a GaAs monolithic microwave integrated circuit (MMIC) fabricated using the Keysight Technologies, Inc. GaAs FET process and is designed for low insertion loss and high isolation from DC to 8 GHz. It is intended for use as a general–purpose, single-pole, double-throw (SPDT), absorptive switch. Two series and two shunt MESFETs per throw provide 1.4 dB maximum insertion loss and 38 dB typical isolation at 6 GHz. The IC is packaged with an LED in a plastic molded 3 x 3 mm QFN SMT package.
Absolute maximum ratings1
Symbol Parameters/conditions Min Max Units
Vsel Select voltages 1 & 2 −10.5 +10.5 volts
Pin RF input power 27 dBm
Tbs Operating pkg backside temperature −25 +70 °C
Tstg Storage temperature −65 +165 °C
Tassy Maximum solder reflow temperature(max 3 cycles @ 30 sec./cycle)
Punsel Power into unselected output 27 dBm
ILED LED control, forward current 15 30 mA
VLED Led control, reverse voltage -5 V
1. Parameters specified for continuous operation at the Tbs ≤ 70 °C. Continuous operation in excess of any one of these conditions may result in performance and/or reliability degradation to this component
02 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
DC specifications/physical properties(TA = 25 °C)
Symbol Parameters/conditions Min Typ Max Units
ISEL −10V Leakage current @ −10 V 300 µA
ISEL +10V Leakage current @ +10 V 20 µA
Vp Pinchoff voltage (VSEL2 = Vp, VRFout2 = +2 V, IRFout2 = 4 mA, VSEL1 = −10 V, VRFout1 = open circuit, VRFin= GND)
−6.75 −3.00 volts
BV Breakdown voltage (Test FET w/ VD = VS = GND, IG = −50 µA) −13.0 volts
VLED fwd LED forward voltage +1.9 +2.25 +2.7 volts
ILED Ctrl LED Forward current 20 mA
RF specifications(TA = 25 °C, Z0 = 50 Ω, Vsel–high = +10 V, Vsel–low = –10 V)
Symbol Parameters/conditions Min Typ Max Units
BW Guaranteed operating bandwidth 8.0 GHz
IL Insertion loss, RFin to selected RFout (ON throw), 8 GHz 2.5 dB
ISO Isolation, RFin to unselected RFout (OFF throw), 8 GHz 35 dB
RLin Input return loss @ 8 GHz 25 dB
RLout−ON Output return loss, ON throw @ 8 GHz 25 dB
RLout−OFF Output return loss, OFF throw @ 8 GHz 15 dB
P−1dB Input power where IL increases by 1 dB, fin = 2 GHz 27 dBm
ts Switching speed, 10% - 90% RF envelope, f in = 2 GHz 20 µs
tsettle Settling time, within 0.01 dB of final state, f in = 8 GHz, LED on 100 µs
03 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
ApplicationsThe 1GG7-8251 can be used in instrumentation, communications, radar, ECM, EW, and many other systems requiring SPDT switching. It can be used for pulse modulation, port isolation, transfer switching, high-speed switching, replacement of mechanical switches, and so on.
Tape and Reel
The 1GG7-8251 component is available in tape and reel format. See Figures 1 and 2.
Injection mold components are moisture-sensitive. The product is tested to the Moisture and Reflow Sensitivity Level 3 as per IPC/Jedec J-STD-020 and must be mounted within 168 hours of opening the shipping container. Store and handle parts for reflow and for rework per IPC/Jedec J-STD-033B. See Figure 3.
This device is RoHS Compliant. This means the component meets the requirements of the European Parliament and the Council of the European Union Restriction of Hazard-ous Substances Directive 2011/65/EU, commonly known as RoHS. The six regulated substances are lead, mercury, cadmium, chromium VI (hexavalent), polybrominated biphenyls (PBB) and polybrominated biphenyl ethers (PBDE). RoHS compliance implies that any residual concentration of these substances is below the RoHS Directive’s maximum concentration values (MVC); being less than 1000 ppm by weight for allsubstances except for cadmium which is less than 100 ppm by weight.
Figure 1. Tape and reel label
Figure 2. Tape and reel, moisture containment pouch
04 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
17 5 6 7 8
16 15 14 13
1. N/C pins can be left open, but it is recommended to connect these to RF/DC ground.2. Pin 17 is the center heat slug this must be connected to RF/DC ground. Use “filled” vias to prevent solder voids.
Figure 3. 1GG7-8251 schematic
The QFN SMT package is compatible with industry standard solder-reflow attach processes.
The GaAs MMIC incorporated in the 1GG7-8251 SMT package solution is ESD sensitive. ESD preventive measures must be employed in all aspects of storage, handling, and assembly.
Additional ReferencesKeysight Technologies FET Switch Speed and Settling Time - Application Note, literature number 5991-3516EN
Select line RF path
SEL1 SEL2 RF IN to RF OUT2 RF IN to RF OUT1+10 V −10 V Isolated Low loss−10 V +10 V Low loss Isolated
Recommended 1GG7-8251 Logic Operating Conditions(TA = 25 °C)
05 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
3 Permanently mark part number and date code (4 x 4 number, year, work week)
2 Side of lead is not plated (bare copper alloy) max burr 0.15 mm
1 Lead plating per assembly drawing
Notes: (Unless otherwise specified)
(0.50 typ)Pin 16 Pin 16
Figure 4. 1GG7-8251 outline
5 6 7 8
Figure 5. 1GG7-8251 package pin-outs
06 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
Notes: (Unless otherwise specified)1 10 sprocket hole pitch cumulative tolerance ±0.22. Camber in compliance with EIA 4813 Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole
User feeddirection Cover tape
Section A-Ascale 10 X
Figure 6. 1GG7-8251 tape and reel configuration
07 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
Figure 7. Insertion loss1 Figure 8. Input–to–output isolation1
Figure 9. Input return loss1 Figure 10. Output return loss1
Figure 11. Gain compression1
1. Data taken on bare die mounted in a modular breadboard package.
08 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
Figure 12. Settling time vs. LED current1
Figure 13. Settling time with LED OFF or ON1
1. Data taken with device mounted on a PCB.
09 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
This data sheet contains a variety of typical and guaranteed performance data. The information supplied should not be interpreted as a complete list of circuit specifications. Customers considering the use of this, or other Keysight Technologies GaAs ICs, for their design should obtain the current production specifications from Keysight. In this data sheet the term typical refers to the 50th percentile performance. For additional information contact Keysight at [email protected].
The product described in this data sheet is RoHS Compliant and RoHS Process Compatible with a maximum temperature of 260 °C and a maximum of 3 temperature cycles.
10 | Keysight | 1GG7-8251 DC to 8 GHz Terminated SPDT Packaged Switch - Data Sheet
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This information is subject to change without notice.© Keysight Technologies, 2016Published in USA, October 10, 20165992-1783ENwww.keysight.com
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