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CMD165
2-30 GHz Distributed Amplifier
Features
Applications
► Ultra wideband performance
► Low noise figure
► Low current consumption
► Small die size
► Microwave radio and VSAT
► Telecom infrastructure
► Test instrumentation
► Military and space
► Fiber Optics
Description
Functional Block Diagram
The CMD165 is wideband GaAs MMIC distributed amplifier die which operates from 2 to
30 GHz. The amplifier delivers greater than 12
dB of gain with a corresponding output 1 dB
compression point of +15 dBm and noise figure of 2.4 dB at 10 GHz. The CMD165 is a 50
ohm matched design which eliminates the need
for external DC blocks and RF port matching.
The CMD165 offers full passivation for increased reliability and moisture protection.
This amplifier is the perfect alternative to
higher cost hybrid amplifiers.
Vgg2
Vdd
2
3
RFOUT
4
RFIN
1
7
6
5
GB
Vgg
ACG1
Note: Vgg2 is optional for gain control
Electrical Performance - Vdd = 8.0 V, Vgg = 3.0 V, TA = 25 oC, F=10 GHz
Parameter
Min
Frequency Range
Typ
Max
Units
2 - 30
GHz
Gain
12
dB
Noise Figure
2.4
dB
Input Return Loss
19
dB
Output Return Loss
22
dB
15.5
dBm
67
mA
Output P1dB
Supply Current
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Specifications
Absolute Maximum Ratings
Parameter
Recommended Operating Conditions
Rating
Parameter
Min
Typ
Max
Units
5.0
8.0
10.0
V
Drain Voltage, Vdd
10.0
Vdd
Gate Voltage, Vgg
4.0
Idd
+20 dBm
Vgg
RF Input Power
Channel Temperature, Tch
Power Dissipation, Pdiss
Thermal Resistance
150 °C
88.5 °C/W
-55 to 85 °C
Storage Temperature
-55 to 150 °C
0
3.0
mA
4.0
V
Electrical performance is measured at specific
test conditions. Electrical specifications are not
guaranteed over all recommended operating conditions.
735 mW
Operating Temperature
67
Operation of this device outside the maximum
ratings may cause permanent damage.
Electrical Specifications, Vdd = 8.0 V, Vgg = 3.0 V, TA = 25 oC
Parameter
Min
Frequency Range
Gain
Typ
Max
Min
2 - 10
10
Typ
Max
Min
10 - 20
13
10
12
9
Typ
Max
Units
20 - 30
GHz
11
dB
Noise Figure
2.7
3
Input Return Loss
15
13
12
dB
Output Return Loss
14
20
10
dB
15
13
dBm
22
20
dBm
Output P1dB
14
Output IP3
16
12
26
Supply Current
50
67
85
50
67
dB
85
50
67
85
mA
Gain Temperature
Coefficient
0.01
0.01
0.01
dB/°C
Noise Figure Temperature Coefficient
0.01
0.01
0.01
dB/°C
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Typical Performance
Broadband Performance, Vdd = 8.0 V, Vgg = 3.0 V, Idd = 67 mA, TA = 25 oC
20
5
S11
S22
S21
NF
Response/dB
10
4.5
4
5
3.5
0
3
-5
2.5
-10
2
-15
1.5
-20
1
-25
Noise Figure/dB
15
0.5
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
Frequency/GHz
Narrow-band Performance, Vdd = 8.0 V, Vgg = 3.0 V, Idd = 67 mA, TA = 25 oC
20
5
15
4.5
10
4
S11
S22
S21
NF
0
3.5
3
-5
2.5
-10
2
-15
1.5
-20
1
-25
Noise Figure/dB
Response/dB
5
0.5
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Frequency/GHz
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
ver 1.3 1114
CMD165
2-30 GHz Distributed Amplifier
Typical Performance
Gain vs. Temperature, Vdd = 8.0 V, Vgg = 3.0 V
20
19
+25C
18
+85C
17
-55C
16
15
14
13
Gain/dB
12
11
10
9
8
7
6
5
4
3
2
1
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Frequency/GHz
Noise Figure vs. Temperature, Vdd = 8.0 V, Vgg = 3.0 V
6
5.5
+25C
5
+85C
-55C
4.5
Noise Figure/dB
4
3.5
3
2.5
2
1.5
1
0.5
0
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Frequency/GHz
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
ver 1.3 1114
CMD165
2-30 GHz Distributed Amplifier
Typical Performance
Output Power, Vdd = 8.0 V, Vgg = 3.0 V, TA = 25 oC
20
19
18
17
16
15
14
Response/dBm
13
12
P1dB
11
Psat
10
9
8
7
6
5
4
3
2
1
0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
19
20
21
22
23
24
25
26
Frequency/GHz
P1dB vs. Temperature, Vdd = 8.0 V, Vgg = 3.0 V, TA = 25 oC
20
19
18
17
16
15
14
P1dB/dBm
13
12
+25C
+85C
-55C
11
10
9
8
7
6
5
4
3
2
1
0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Frequency/GHz
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Typical Performance
Output IP3 vs. Temperature, Vdd = 8.0 V, Vgg = 3.0 V, TA = 25 oC
35
+25C
+85C
30
-55C
Output IP3/dBm
25
20
15
10
5
0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Frequency/GHz
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Mechanical Information
Die Outline (all dimensions in microns)
275.0
125.0
2
3
4
2300.0
1727.5
1
1199.5
7
759.0
6
5
679.5
829.5
1279.5
2300.0
Notes:
1. No connection required for unlabeled pads
2. Backside is RF and DC ground
3. Backside and bond pad metal: Gold
4. Die is 85 microns thick
5. DC bond pads are 100 microns square
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
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CMD165
2-30 GHz Distributed Amplifier
Pad Description
Pad Diagram
2
3
4
1
7
6
5
Functional Description
Pad
Function
Description
1
RF in
DC blocked and 50 ohm matched
2
Vgg2
Optional supply voltage for gain control
Decoupling and bypass caps required
Schematic
RF in
Vgg2
Vdd
3
Vdd
Power supply voltage
Decoupling and bypass caps required
4
RF out
DC blocked and 50 ohm matched
5
ACG1
Low Frequency Termination
Attach bypass capacitor per application
circuit
6
Vgg
Power supply voltage
Decoupling and bypass caps required
7
GB
Connect to DC ground
RF out
ACG1
Vgg
GB
GND
Backside
Ground
Connect to RF / DC ground
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Applications Information
Assembly Guidelines
The backside of the CMD165 is RF ground. Die attach should be accomplished with electrically and
thermally conductive epoxy only. Eutectic attach is not recommended. Standard assembly procedures
should be followed for high frequency devices. The top surface of the semiconductor should be made
planar to the adjacent RF transmission lines, and the RF decoupling capacitors placed in close proximity
to the DC connections on chip.
RF connections should be made as short as possible to reduce the inductive effect of the bond wire. Use
of a 0.8 mil thermosonic wedge bonding is highly recommended as the loop height will be minimized.
The RF input and output require a double bond wire as shown.
The semiconductor is 85 um thick and should be handled by the sides of the die or with a custom collet.
Do not make contact directly with the die surface as this will damage the monolithic circuitry. Handle
with care.
Assembly Diagram
to Vdd
0.1 uF BYPASS CAP
100 pF BYPASS CAP
(example: Presidio part
LSA1515B101M2H5R-L)
RF out
RF in
100 pF BYPASS CAP
0.1 uF BYPASS CAP
0.1 uF CAP TO GROUND
(example: Presidio part
MVB4080X104ZGK5R3L)
to Vgg
GaAs MMIC devices are susceptible to damage from Electrostatic Discharge. Proper precautions
should be observed during handling, assembly and test.
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com
CMD165
2-30 GHz Distributed Amplifier
Applications Information
Application Circuit
Vdd
100 pF
0.1 uF
2
3
RF in
4
1
RF out
5
6
0.1 uF
7
Vgg
100 pF
0.1 uF
Biasing and Operation
The CMD165 is biased with a positive drain supply and positive gate supply. Performance is optimized
when the drain voltage is set to +8.0 V. The recommended gate voltage is +3.0 V.
Turn ON procedure:
1.Apply drain voltage Vdd and set to +8 V
2.Apply gate voltage Vgg and set to +3 V
Turn OFF procedure:
1.Turn off gate voltage Vgg
2.Turn off drain voltage Vdd
RF power can be applied at any time.
ver 1.3 1114
Custom MMIC
1 Park Drive Unit 12 Westford, MA 01886 Phone (978) 467-4290 Fax (978) 467-4294
Visit us online at www.custommmic.com