AMMC-6440
37 - 42 GHz Power Amplifier
Data Sheet
Chip Size: 2500 x 1750 μm (100 x 69 mils)
Chip Size Tolerance: ± 10 μm (±0.4 mils)
Chip Thickness: 100 ± 10 μm (4 ± 0.4 mils)
Pad Dimensions: 100 x 100 μm (4 ± 0.4 mils)
Description
Features
The AMMC-6440 MMIC is a broadband 1W power amplifier
designed for use in transmitters that operate in various frequency bands between 37GHz and 42GHz. This MMIC optimized for linear operation with an output third order intercept point (OIP3) of 38dBm. At 42GHz it provides 28dBm of
output power (P-1dB) and 14dB of gain. The device has input and output matching circuitry for use in 50 Ω environments. The AMMC-6440 also integrates a temperature
compensated RF power detection circuit that enables
power detection of 0.25V/W. DC bias is simple and the
device operates on widely available 5.5V for current supply (negative voltage only needed for Vg). It is fabricated
in a PHEMT process for exceptional power and gain performance. For improved reliability and moisture protection, the die is passivated at the active areas.
x Wide frequency range: 37 - 42 GHz
x High gain: 14 dB
x Power: @42 GHz, P-1dB=28 dBm
x Highly linear: OIP3=39dBm
x Integrated RF power detector
x 5.5 Volt, -0.7 Volt, 950mA operation
Applications
x Microwave Radio systems
x LMDS & Pt-Pt mmW Long Haul
x 802.16 & 802.20 WiMax BWA
x WLL and MMDS loops
x Can be driven by AMMC-6345, increasing overall
gain
Note: These devices are ESD sensitive. The following precautions are strongly recommended.
Ensure that an ESD approved carrier is used when dice are transported from one destination to
another. Personal grounding is to be worn at all times when handling these devices
Absolute Maximum Ratings [AMMC-6440]
Symbols
Parameters
Units
Vd-Vg
Drain to Gate Voltage
V
Min.
8
Vd
Positive Supply Voltage
V
5.5
Vg
Gate Supply Voltage
V
Id
Drain Current
mA
TBD
2
PD
Power Dissipation
W
5.5
2, 3
Pin
CW Input Power
dBm
20
2
Tch
Operating Channel Temp
qC
+150
4
Tstg
Storage Case Temp.
qC
-65 to +155
Tmax
Maximum Assembly Temp (30 sec max)
qC
+320
-2.5
Max.
Notes
0.5
Notes:
1. Operation in excess of any one of these conditions may result in permanent damage to this device. Functional operation at or near these
limitations will significantly reduce the lifetime of the device.
2. Dissipated power PD is in any combination of DC voltage, Drain Current, input power and power delivered to the load.
3. When operated at maximum PD with a base plate temperature of 85 qC, the median time to failure (MTTF) is significantly reduced.
4. These ratings apply to each individual FET. The operating channel temperature will directly affect the device MTTF.
For maximum life, it is recommended that junction temperatures (Tj) be maintained at the lowest possible levels. See MTTF vs. Channel temperature Table
AMMC-6440 DC Specifications/Physical Properties [1]
Symbol
Parameters and Test Conditions
Units
Id
Drain Supply Current
(under any RF power drive and temperature)
(Vd=5.5 V, Vg set for Id Typical)
mA
Vg
Gate Supply Operating Voltage
(Id(Q) = 950 (mA))
V
qch-b
Thermal Resistance [2]
(Backside temperature, Tb = 25°C)
°C/W
Min.
-0.85
Typ.
Max.
950
1050
-0.7
-0.65
6.4
Notes:
1. Ambient operational temperature TA=25°C unless otherwise noted.
2. Channel-to-backside Thermal Resistance (θch-b) = 9.0°C/W at Tchannel (Tc) = 70°C as measured using infrared microscopy. Thermal Resistance
at backside temperature (Tb) = 25°C calculated from measured data.
Thermal Properties
Parameter
Test Conditions
Value
Maximum Power Dissipation
Tbaseplate = 85°C
PD = 5.5W
Tchannel = 150°C
Thermal Resistance (Tjc)
Vd = 5.5V
Id = 950mA
PD = 5.23W
Tbaseplate = 85°C
Tjc = 6.4°C/W
Tchannel = 118°C
Thermal Resistance (Tjc)
Under RF Drive
Vd = 5.5V
Id = 1095mA
Pout = 28dBm
Pd = 5.43W
Tbaseplate = 85°C
Tjc = 6.4°C/W
Tchannel = 120°C
2
MTTF vs. Tchannel Temperature
Operation
Tj
60% Confidence Level
90% Confidence Level
Point Data R=
λ (ФIT)
MTTF (hrs)
λ (ФIT)
MTTF (hrs)
λ (ФIT)
MTTF (Yrs)
150
3511
2.8E+05
8822
1.1E+05
3831
2.6E+05
140
1298
7.7E+05
3260
3.1E+05
1416
7.1E+05
130
456
2.2E+06
1147
8.7E+05
498
2.0E+05
120
152
6.6E+06
382
2.6E+06
166
6.0E+06
110
48
2.1E+07
120
8.3E+06
52
1.9E+06
100
14
7.0E+07
36
2.8E+07
15
6.5E+07
90
4
2.5E+08
10
1.0E+08
4
2.3E+08
80
1
9.9E+08
3
3.9E+08
1
9.1E+08
70
0
4.2E+09
1
1.7E+09
0
3.8E+09
60
0
1.9E+10
0
7.6E+09
0
1.7E+10
50
0
9.6E+10
0
3.8E+10
0
8.8E+10
AMMC-6440 RF Specifications [1, 2, 3]
TA= 25°C, Vd=5.5V, Id(Q)=950 mA, Zo=50 Ω
Symbol
Parameters and Test Conditions
Units
Minimum
Typical
Maximum
Sigma
Gain
Small-signal Gain[2]
dB
12
14
0.5
P-1dB
Output Power at 1dB Gain Compression
dBm
26
28
0.39
P-3dB
Output Power at 3dB Gain Compression
dBm
28.5
0.36
OIP3
Third Order Intercept Point;
'f=10MHz; Pin=-20dBm
dBm
38
0.86
RLin
Input Return Loss[2]
dB
-16
0.70
RLout
Output Return Loss[2]
dB
-18
0.71
Isolation
Min. Reverse Isolation
dB
-47
3.00
Notes:
3. Small/Large -signal data measured in wafer form TA = 25°C.
4. 100% on-wafer RF test is done at frequency = 38, 40, and 42 GHz. Statistics based on 1500 part sample
5. Specifications are derived from measurements in a 50 Ω test environment. Aspects of the amplifier performance may be improved over a more
narrow bandwidth by application of additional conjugate, linearity, or power matching.
LSL
12
12.5
LSL
13
Gain at 40 GHz
13.5
14
14.5
15
26
LSL
27
P-1dB at 40 GHz
28
29
27
28
P-1dB at 42 GHz
Typical distribution of Small Signal Gain and Output Power @P-1dB. Based on 1500 part sampled over several production lots.
3
AMMC-6440 Typical Performances (TA = 25°C, Vd =5.5 V, ID = 950 mA, Zin = Zout = 50 Ω)
NOTE: These measurements are in a 50 Ω test environment. Aspects of the amplifier performance may be improved
over a more narrow bandwidth by application of additional conjugate, linearity, or power matching
20
-20
0
S21[dB]
S11[dB]
S12[dB]
S22[dB]
30
-5
25
-10
P-1 [dBm], PAE [%]
-40
Return Loss [dB]
10
S12 [dB]
S21[dB]
15
-15
-20
20
P-1
PAE
15
10
5
5
-25
35
40
Frequency [GHz]
0
-30
30
-60
50
45
Figure 1. Typical Gain and Reverse Isolation
35
40
Frequency [GHz]
45
Figure 2. Typical Return Loss (Input and Output)
10
35
50
39
41
Frequency [GHz]
43
40
1250
40
35
38
Pout(dBm)
PAE[%]
Id(total)
1150
30
5
4
Po[dBm], and, PAE[%]
6
IP3 [dBm]
Noise Figure [dB]
7
36
34
3
45
Figure 3. Typical Output Power (@P-1dB) and PAE
9
8
37
25
1050
20
Ids [mA]
0
30
15
950
10
32
2
5
1
0
-15
30
0
32
34
36
38
40
Frequency [GHz]
42
32
44
34
36
38
40
Frequency [GHz]
42
44
Figure 5. Typical Output 3rd Order Intercept Pt.
Figure 4. Typical Noise Figure
0
0
5
Pin [dBm]
10
15
850
20
25
S22_20
S22_-40
S11_-40
S21_20
S21_-40
S22_85
S11_85
-5
-5
Figure 6. Typical Output Power, PAE, and Total
Drain Current versus Input Power at40GHz
0
S11_20
-10
S21_85
-5
20
-15
10
-20
30
35
Frequency[GHz]
40
Figure 7. Typical S11 over temperature
4
15
-15
-20
-25
25
S21[dB]
-10
S22[dB]
S11[dB]
-10
45
-25
25
30
35
Frequency[GHz]
40
Figure 8. Typical S22 over temperature
45
5
25
30
35
Frequency[GHz]
40
Figure 9. Typical Gain over temperature
45
32
30
P-1 [dBm]
28
26
24
P-1_85deg
22
P-1_20deg
P-1_-40deg
20
35
37
39
41
Frequency [GHz]
43
45
Figure 10. Typical One dB Compression over temperature
Typical Scattering Parameters [1], (TA = 25°C, Vd =5.5 V, ID = 950 mA, Zin = Zout = 50 Ω)
S11
S21
S12
Freq
GHz
dB
Mag
Phase
dB
Mag
20
-8.26
0.39
35.28
-3.39
0.68
53.88
21
-9.55
0.33
18.31
-0.13
0.99
-32.46
22
-10.68
0.29
6.50
0.05
1.01
-98.82
23
-11.77
0.26
-4.14
-0.14
0.98
24
-12.77
0.23
-11.52
-0.49
0.95
25
-13.43
0.21
-21.81
-0.41
26
-14.12
0.20
-31.29
27
-15.09
0.18
-41.60
28
-16.42
0.15
29
-17.94
30
31
Mag
Phase
-51.52
2.66E-03
82.15
-10.41
0.30
-39.51
-53.07
2.22E-03
58.35
-11.90
0.25
-54.15
-49.74
3.26E-03
107.10
-13.84
0.20
-67.90
-151.54
-48.39
3.81E-03
136.45
-16.35
0.15
-82.69
163.34
-43.49
6.69E-03
113.79
-20.06
0.10
-92.28
0.95
125.97
-42.58
7.43E-03
103.95
-25.31
0.05
-93.95
0.24
1.03
90.59
-39.45
1.07E-02
92.03
-30.03
0.03
-54.19
1.14
1.14
56.21
-39.32
1.08E-02
84.03
-27.22
0.04
-20.99
-51.56
2.48
1.33
21.78
-38.53
1.18E-02
61.72
-23.66
0.07
-16.14
0.13
-62.21
4.32
1.64
-13.91
-40.36
9.60E-03
53.79
-21.56
0.08
-29.95
-18.94
0.11
-73.50
6.33
2.07
-51.69
-36.99
1.41E-02
44.78
-21.11
0.09
-42.93
-21.70
0.08
-82.94
8.58
2.69
-93.11
-40.58
9.35E-03
23.71
-21.65
0.08
-53.78
32
-25.86
0.05
-113.23
11.20
3.63
-140.25
-41.25
8.66E-03
27.01
-22.32
0.08
-67.31
33
-42.75
0.01
162.22
13.10
4.52
168.62
-40.97
8.95E-03
35.99
-23.96
0.06
-77.52
34
-29.08
0.04
80.83
14.71
5.44
113.57
-42.41
7.58E-03
18.07
-26.35
0.05
-118.70
35
-22.63
0.07
33.21
14.94
5.58
57.12
-41.53
8.39E-03
22.34
-34.08
0.02
-129.29
36
-19.22
0.11
21.46
14.65
5.40
4.18
-43.59
6.62E-03
42.99
-38.46
0.01
21.71
37
-18.69
0.12
15.80
14.25
5.16
-46.43
-39.17
1.10E-02
32.85
-29.79
0.03
95.54
38
-16.44
0.15
-2.06
13.67
4.82
-95.24
-39.54
1.05E-02
7.47
-25.71
0.05
49.06
39
-16.58
0.15
-19.18
13.65
4.81
-143.86
-39.47
1.06E-02
0.37
-22.80
0.07
32.40
40
-17.21
0.14
-37.99
13.63
4.80
167.35
-44.88
5.70E-03
11.79
-23.37
0.07
11.92
41
-17.47
0.13
-53.55
14.18
5.12
113.76
-40.24
9.72E-03
30.26
-25.74
0.05
-4.19
42
-26.58
0.05
-91.15
14.40
5.25
49.11
-39.66
1.04E-02
-4.22
-26.64
0.05
71.61
43
-33.75
0.02
110.21
13.06
4.50
-25.29
-39.36
1.08E-02
-12.55
-18.85
0.11
55.31
44
-23.07
0.07
40.34
9.09
2.85
-96.84
-43.48
6.70E-03
-17.47
-19.06
0.11
25.20
45
-21.59
0.08
23.11
3.77
1.54
-158.36
-52.98
2.24E-03
-26.13
-19.51
0.11
21.00
46
-21.12
0.09
22.94
-2.00
0.79
149.17
-46.88
4.53E-03
39.82
-19.06
0.11
20.89
47
-18.59
0.12
26.05
-7.54
0.42
105.77
-42.48
7.52E-03
69.08
-18.27
0.12
12.16
48
-17.71
0.13
23.21
-12.29
0.24
69.14
-37.89
1.27E-02
69.52
-16.95
0.14
6.57
49
-15.29
0.17
11.09
-16.78
0.14
36.42
-35.71
1.64E-02
14.63
-17.51
0.13
-11.50
50
-14.03
0.20
8.90
-20.84
0.09
8.48
-33.85
2.03E-02
35.67
-19.70
0.10
-24.97
Note:
Data obtained from on-wafer measurements.
5
Phase
dB
S22
dB
Mag
Phase
Biasing and Operation
Assembly Techniques
The recommended quiescent DC bias condition for optimum efficiency, performance, and reliability is Vd=5.5
volts with Vg set for Id=950 mA. Minor improvements in
performance are possible depending on the application.
The drain bias voltage range is 3 to 5.5V. A single DC gate
supply connected to Vg will bias all gain stages. Muting can be accomplished by setting Vg and /or Vg to the
pinch-off voltage Vp.
The backside of the MMIC chip is RF ground. For microstrip applications the chip should be attached directly to the ground plane (e.g. circuit carrier or heatsink) using electrically conductive epoxy [1,2].
An optional output power detector network is also
provided. The differential voltage between the Det-Ref
and Det-Out pads can be correlated with the RF power
emerging from the RF output port. The detected voltage
is given by :
V = (Vref - Vdet) - Vofs
where Vref is the voltage at the DET_R port, Vdet is a voltage at the DET_O port, and Vofs is the zero-input-power
offset voltage. There are three methods to calculate :
1. Vofs can be measured before each detector measurement (by removing or switching off the power source
and measuring ). This method gives an error due to
temperature drift of less than 0.01dB/50qC.
2. Vofs can be measured at a single reference temperature.
The drift error will be less than 0.25dB.
3. Vofs can either be characterized over temperature and
stored in a lookup table, or it can be measured at two
temperatures and a linear fit used to calculate at any
temperature. This method gives an error close to the
method #1.
The RF ports are AC coupled at the RF input to the first
stage and the RF output of the final stage. No ground
wired are needed since ground connections are made
with plated through-holes to the backside of the device.
For best performance, the topside of the MMIC should be
brought up to the same height as the circuit surrounding
it. This can be accomplished by mounting a gold plate
metal shim (same length and width as the MMIC) under
the chip which is of correct thickness to make the chip
and adjacent circuit the same height. The amount of epoxy used for the chip and/or shim attachment should be
just enough to provide a thin fillet around the bottom
perimeter of the chip or shim. The ground plain should
be free of any residue that may jeopardize electrical or
mechanical attachment.
The location of the RF bond pads is shown in Figure
12. Note that all the RF input and output ports are in a
Ground-Signal configuration.
RF connections should be kept as short as reasonable
to minimize performance degradation due to undesirable series inductance. A single bond wire is normally
sufficient for signal connections, however double bonding with 0.7 mil gold wire or use of gold mesh is recommended for best performance, especially near the high
end of the frequency band.
Thermosonic wedge bonding is preferred method for
wire attachment to the bond pads. Gold mesh can be attached using a 2 mil round tracking tool and a tool force
of approximately 22 grams and a ultrasonic power of
roughly 55 dB for a duration of 76 +/- 8 mS. The guided
wedge at an untrasonic power level of 64 dB can be used
for 0.7 mil wire. The recommended wire bond stage temperature is 150 +/- 2qC.
Caution should be taken to not exceed the Absolute
Maximum Rating for assembly temperature and time.
The chip is 100um thick and should be handled with
care. This MMIC has exposed air bridges on the top surface and should be handled by the edges or with a custom collet (do not pick up the die with a vacuum on die
center).
This MMIC is also static sensitive and ESD precautions
should be taken.
Notes:
1. Ablebond 84-1 LM1 silver epoxy is recommended.
2. Eutectic attach is not recommended and may jeopardize reliability
of the device.
6
DET_R
Vd
Vg
DQ
DET_O
RFout
RFin
Figure 11. AMMC-6440 Schematic
Figure 12. AMMC-6440 Bonding pad locations
7
Three stage 0.5W power amplifier
V g (Optional )
Vd
0.1mF
0.1mF
68pF
Vg
Vd
DET_O
RFOutput
AMMC-6440
RFInput
Vd
RFO
RFI
DET_R
Vg
Vd
0.1mF
0.1mF
68pF
Vd
Vg
Notes:
1. 1mF capacitors on gate and
drain lines not shown required.
2. Vg connection is recommended
on both sides for devices
operating at or above P1dB.
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
1
Ordering Information:
0.1
AMMC-6440-W10 = 10 devices per tray
0.01
0.001
Det_R - Det_O [V]
Det_R - Det_O [V]
Figure 13. AMMC-6440 Assembly diagram
AMMC-6440-W50 = 50 devices per tray
0.0001
5
10
15
20
25
Pout[dBm]
30
35
Figure 14. AMMC-6440 Typical Detector Voltage and Output Power,
Freq=40 GHz
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Data subject to change. Copyright © 2005-2009 Avago Technologies. All rights reserved. Obsoletes 5989-3941EN
AV02-1284EN - November 12, 2009