RMDA20420
RF Components 20-42 GHz General Purpose MMIC Amplifier
ADVANCED INFORMATION
Description
The Raytheon RF Components RMDA20420 is a broadband general purpose driver amplifier
designed for use in point to point radio, point to multi-point communications, LMDS, SatCom and
other millimeter wave applications. The RMDA20420 is a fully matched GaAs MMIC utilizing
Raytheon RF Components’ advanced 0.15µm gate length PHEMT process.
Features
! Wideband 20 - 42 GHz operation
! 22 dB small signal gain (typ.)
! 23 dBm saturated power output (typ.)
! Matched to 50 Ohms
! Optional bonding configuration for multiplier applications
! Chip Size 1.720 mm x 0.760 mm
Absolute
Ratings
Parameter
Positive DC Voltage (+3.5 V Typical)
Negative DC Voltage
Simultaneous (Vd - Vg)
Positive DC Current
RF Input Power (from 50 Ω source)
Operating Base Plate Temperature
Storage Temperature Range
Thermal Resistance
(Channel to Backside)
Symbol
Vd
Vg
Vdg
Id
Pin
Tc
Tstg
Rjc
Value
+5
-2
+7
600
15
-30 to +85
-55 to +125
57
Unit
Volts
Volts
Volts
mA
dBm
°C
°C
°C/W
Electrical
Characteristics1
Parameter
Min Typ Max Unit
Frequency Range
20
Drain Supply Voltage (Vd) 2
Gate Supply Voltage (Vg)2 -2
Small Signal Gain3
(f=20-22 GHz)
18
(f=22-42 GHz)
20
Gain Variation vs.
Frequency
Power Output at
1 dB Compression
3.5
-0.6
20
22
+/-2.5
21
42 GHz
5V
-0.15 V
dB
dB
dB
dBm
Parameter
Min Typ Max Unit
Power Output Saturated4 22 23
dBm
Drain Current at
P1 dB Compression
355
mA
Drain Current at Psat
362
mA
Input Return Loss
(Pin=-20 dBm)
12
dB
Output Return Loss
(Pin=-20 dBm)
10
dB
Notes:
1. Operated at 25 °C, 50 Ohm system, Vd=+3.5 V, quiescent current (Idq)=350 mA.
2. Typical range of the negative gate voltage is -0.9 to –0.15 V to set typical Idq of 350 mA.
3. Production measurements for small signal gain are made over a frequency range of 20 to 40 GHz.
4. Saturated power measurements are not 100% tested, but guaranteed by design.
www.raytheonrf.com
Specifications are based on most current or latest revision.
Revised February 6, 2003
Page 1
Raytheon RF Components
362 Lowell Street
Andover, MA 01810