2– 26.5 GHz GaAs MMIC
Traveling Wave Amplifier
Technical Data
HMMC-5021 (2-22 GHz)
HMMC-5022 (2-22 GHZ)
HMMC-5026 (2-26.5 GHz)
Features
• Wide-Frequency Range:
2 - 26.5 GHz
• High Gain: 9.5 dB
• Gain Flatness: 0.75 dB
• Return Loss:
Input: -14 dB
Output: -13 dB
• Low-Frequency Operation
Capability: < 2 GHz
• Gain Control:
35 dB Dynamic Range
• Moderate Power:
20 GHz: P-1dB: 18 dBm
Psat: 20 dBm
26.5 GHz: P-1dB: 15 dBm
Psat: 17 dBm
Description
The HMMC-5021/22/26 is a
broadband GaAs MMIC Traveling
Wave Amplifier designed for high
gain and moderate output power
over the full 2 to 26.5 GHz frequency range. Seven MESFET
cascode stages provide a flat gain
response, making the
HMMC-5021/22/26 an ideal
wideband gain block. Optical
lithography is used to produce
gate lengths of ≈ 0.4 µm. The
HMMC-5021/22/26 incorporates
advanced MBE technology,
Ti-Pt-Au gate metallization,
silicon nitride passivation, and
polyimide for scratch protection.
5965-5449E
Chip Size:
Chip Size Tolerance:
Chip Thickness:
Pad Dimensions:
2980 x 770 µm (117.3 x 30.3 mils)
± 10 µm (± 0.4 mils)
127 ± 15 µm (5.0 ± 0.6 mils)
75 x 75 µm (2.95 x 2.95 mils), or larger
Absolute Maximum Ratings
Symbol
Parameters/Conditions
Units
Min.
Max.[1]
VDD
Positive Drain Voltage
V
8.0
IDD
Total Drain Current
mA
250
VG1
First Gate Voltage
V
-5
0
IG1
First Gate Current
mA
-9
+5
+3.5
VG2[2]
Second Gate Voltage
V
-2.5
IG2
Second Gate Current
mA
-7
PDC
DC Power Dissipation
watts
2.0
Pin
CW Input Power
dBm
23
Tch
Operating Channel Temp.
°C
+150
Tcase
Operating Case Temp.
°C
-55
TSTG
Storage Temperature
°C
-65
Tmax
Maximum Assembly Temp.
(for 60 seconds maximum)
°C
+165
+300
Notes:
1. Operation in excess of any one of these conditions may result in permanent
damage to this device. TA = 25°C except for Tch, TSTG, and Tmax.
2. Minimum voltage on VG2 must not violate the following: VG2 (min) > VDD - 9 volts.
6-28
HMMC-5021/22/26 DC Specifications/Physical Properties,[1] applies to all part numbers
Symbol
IDSS
Parameters and Test Conditions
Saturated Drain Current
(VDD = 7.0 V, VG1 = 0 V, VG2 = open circuit)
Units
Min.
Typ.
Max.
mA
115
180
250
-3.5
-1.5
-0.5
Vp
First Gate Pinch-off Voltage
(VDD = 7.0 V, IDD = 16 mA, VG2 = open circuit)
V
VG2
Second Gate Self-Bias Voltage
(VDD = 7.0 V, VG1 = 0 V)
V
2.1
IDSOFF
(VG1)
First Gate Pinch-off Current
(VDD = 7.0 V, VG1 = -3.5 V, VG2 = open circuit)
mA
4
IDSOFF
(VG2)
Second Gate Pinch-Off Current
(VDD = 5.0 V, VG1 = 0 V, VG2 = -3.5 V)
mA
8
θch-bs
Thermal Resistance
(Tbackside = 25°C)
°C/W
36
Note:
1. Measured in wafer form with Tchuck = 25°C. (Except θch-bs.)
HMMC-5021/22/26 RF Specifications, VDD = 7.0 V, IDD(Q) = 150 mA, Zin = Zo = 50 Ω [1]
Symbol
Parameters/Conditions
BW
S21
∆S21
RLin(min)
RLout(min)
Isolation
P-1dB
Psat
Guaranteed Bandwidth
Small Signal Gain
Small Signal Gain Flatness
Minimum Input Return Loss
Minimum Output Return Loss
Minimum Reverse Isolation
Output Power at 1 dB Gain Comp.
Saturated Output Power
Max. Second Harm. (2 <ƒo<20),
[Po(ƒo) = 17 dBm or P-1dB,
whichever is less.]
Max. Third Harm. (2 <ƒo< 20),
[Po(ƒo) = 17 dBm or P-1dB,
whichever is less.]
Noise Figure
H2(max)
H3(max)
NF
2.0–22.0 GHz
HMMC-5021
HMMC-5022
Units
Typ.
Min.
Typ.
Max.
2
8.0
GHz
dB
dB
dB
dB
dB
dBm
dBm
2-22
10
± 0.5
16
13
32
18
20
dBc
-25
-25
-20
-25
-20
dBc
-34
-34
-20
-34
-20
dB
8
8
10
10
20
15
17
10
± 0.5
16
13
32
18
20
22
12
± 1.0
2.0–26.5 GHz
HMMC-5026
Min.
Typ.
Max.
2
7.5
10
10
20
12
14
9.5
± 0.75
14
13
30
15
17
10
Notes:
1. Small-signal data measured in wafer form with Tchuck = 25°C. Large-signal data measured on individual devices
mounted in an HP83040 Series Modular Microcircuit Package @ TA = 25°C.
2. Performance may be extended to lower frequencies through the use of appropriate off-chip circuitry. Upper -3 dB
corner frequency ≈ 29.5 GHz.
6-29
26.5
12
± 1.0
Applications
The HMMC-5021/22/26 series of
traveling wave amplifiers are
designed for use as general
purpose wideband gain blocks in
communication systems and
microwave instrumentation. They
are ideally suited for broadband
applications requiring a flat gain
response and excellent port
matches over a 2 to 26.5 GHz
frequency range. Dynamic gain
control and low-frequency
extension capabilities are designed into these devices.
Biasing and Operation
These amplifiers are biased with
a single positive drain supply
(VDD) and a single negative gate
supply (VG1). The recommended
bias conditions for the
HMMC-5021/22/26 are VDD = 7.0V,
IDD = 150 mA for best overall
performance. To achieve this
drain current level, VG1 is typi-
cally biased between -0.2V and
-0.5V. No other bias supplies or
connections to the device are
required for 2 to 26.5 GHz operation. See Figure 3 for assembly
information.
The auxiliary gate and drain
contacts are used only for lowfrequency performance extension
below ≈ 1.0 GHz. When used,
these contacts must be AC
coupled only. (Do not attempt to
apply bias to these pads.)
The second gate (VG2) can be
used to obtain 35 dB (typical)
dynamic gain control. For normal
operation, no external bias is
required on this contact and its
self-bias voltage is ≈ +2.1 V.
Applying an external bias
between its open-circuit voltage
and -2.5 volts will adjust the gain
while maintaining a good
input/output port match.
Assembly Techniques
Solder die-attach using a fluxless
AuSu solder preform is the
recommended assembly method.
Gold thermosonic wedge bonding
with 0.7 mil diameter Au wire is
recommended for all bonds. Tool
force should be 22 ± 1 gram, stage
temperature should be 150 ± 2°C,
and ultrasonic power and duration should be 64 ± 1 dB and
76␣ ± ␣ 8 msec, respectively. The
bonding pad and chip backside
metallization is gold.
For more detailed information
see HP application note #999,
“GaAs MMIC Assembly and
Handling Guidelines.”
GaAs MMICs are ESD sensitive.
Proper precautions should be used
when handling these devices.
Seven Identical Stages
Drain Bias
(VDD)
Aux. Drain
RF Output
124
Second Gate
Bias (VG2)
124
RF Input
Temp
Diode
Sense
Temp
Diode
Force
First Gate
Bias (VG1)
Single Stage Shown
Aux. Gate
Note:
FET gate periphery in microns.
Figure 1. HMMC-5021/22/26 Schematic.
6-30
Notes:
All dimensions in microns.
Rectangular Pad Dim: 75 x 75 µm.
Octagonal Pad Dim: 90 µm dia.
All other dimensions ±5 µm
(unless otherwise noted).
Chip thickness: 127 ± 15 µm.
Figure 2. HMMC-5021/22/26 Bonding Pad Locations.
1.5 mil dia.Gold Wire
Bond to ≥15 nF
DC Feedthru
≥68 pF Capacitor
Input and Output Thin Film
Circuit with ≥8 pF
DC Blocking Capacitor
≥4 nH Inductor
(0.7 mil Gold Wire Bond
with length ≥150 mils)
Gold Plated Shim
2.0 mil
nom. gap
Trace Offset
168 µm
(6.6 mils)
VDD
IN
OUT
VG1
Trace Offset
168 µm
(6.6 mils)
2.0 mil
nom. gap
Bonding Island
0.7 mil dia. Gold Bond Wire
(Length NOT important)
1.5 mil dia.Gold Wire
Bond to ≥15 nF DC Feedthru
Figure 3. HMMC-5021/22/26 Assembly Diagram.
6-31
Note:
Total offset between RF input
and RF output pad is 335 µm
(13.2 mils).
HMMC-5021/22/26 Typical Performance
VDD = 7.0 V, IDD = 150 mA
10
20
9
8
30
7
S12
6
40
5
4
50
INPUT RETURN LOSS (dB)
S21
11
SMALL-SIGNAL GAIN (dB)
10
10
10
S22
15
15
20
20
S11
25
25
30
30
35
35
OUTPUT RETURN LOSS (dB)
VDD = 7.0 V, IDD = 150 mA
REVERSE ISOLATION (dB)
12
3
2
2
6
10
14
18
22
26
60
30
40
2
FREQUENCY (GHz)
6
10
14
18
22
26
40
30
FREQUENCY (GHz)
Figure 4. Typical Gain and Reverse
Isolation vs. Frequency.
Figure 5. Typical Input and Output
Return Loss vs. Frequency.
Typical Scattering Parameters[1], (Tchuck = 25°C, VDD = 7.0 V, IDD = 150 mA, Zin = Zout = 50 Ω
Freq.
GHz
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
26.5
27.0
28.0
29.0
30.0
dB
-22.6
-30.6
-37.8
-29.4
-26.6
-26.6
-27.7
-29.0
-29.0
-27.3
-26.2
-25.8
-26.4
-24.6
-21.6
-19.4
-18.3
-18.7
-20.3
-21.8
-19.9
-17.3
-16.3
-17.1
-17.0
-15.7
-14.3
-13.2
-14.1
-11.5
S11
Mag
0.074
0.030
0.013
0.034
0.047
0.047
0.041
0.035
0.036
0.043
0.049
0.052
0.048
0.059
0.083
0.107
0.121
0.116
0.097
0.082
0.101
0.137
0.153
0.139
0.141
0.163
0.192
0.220
0.197
0.266
Ang
-174.1
130.4
-19.8
-79.9
-113.8
-137.0
-152.6
-149.8
-140.8
-138.1
-141.9
-148.5
-143.0
-131.7
-133.7
-143.5
-158.7
-172.6
-179.5
-168.3
-155.3
-158.8
-169.9
-175.4
-165.0
-161.1
-162.7
-175.7
-176.9
-171.6
dB
-53.1
-51.0
-48.0
-46.8
-44.4
-44.1
-43.4
-44.3
-43.0
-41.6
-40.0
-38.9
-38.1
-36.6
-35.3
-35.0
-34.7
-33.9
-33.3
-32.7
-31.7
-31.4
-30.7
-30.0
-29.2
-29.0
-28.9
-28.8
-28.6
-30.8
S21
Mag
0.0022
0.0028
0.0040
0.0046
0.0060
0.0062
0.0067
0.0061
0.0071
0.0083
0.0100
0.0113
0.0125
0.0148
0.0172
0.0177
0.0184
0.0201
0.0217
0.0233
0.0259
0.0268
0.0291
0.0317
0.0345
0.0356
0.0357
0.0362
0.0371
0.0287
Ang
167.3
120.1
95.0
67.1
36.0
1.0
-27.5
-31.8
-53.6
-74.8
-96.9
-120.9
-145.6
-169.9
160.9
130.6
105.0
80.2
50.7
22.5
-8.4
-39.5
-71.5
-106.2
-145.5
-166.7
171.7
126.3
73.0
4.8
Note:
1. Data obtained from on-wafer measurements.
6-32
dB
10.1
10.0
10.2
10.3
10.4
10.4
10.5
10.4
10.3
10.2
10.2
10.2
10.1
10.1
10.0
10.0
9.9
9.9
10.0
10.0
9.9
9.8
9.7
9.7
9.6
9.5
9.2
8.5
7.7
4.6
S12
Mag
3.183
3.173
3.225
3.275
3.303
3.330
3.331
3.312
3.282
3.253
3.227
3.218
3.204
3.197
3.177
3.149
3.138
3.140
3.151
3.150
3.126
3.076
3.045
3.045
3.027
2.970
2.876
2.648
2.433
1.689
Ang
123.6
102.1
78.2
53.5
28.1
2.3
-23.8
-50.2
-76.4
-102.5
-128.8
-155.4
177.8
150.4
122.5
94.4
65.9
36.8
6.6
-24.9
-57.5
-91.0
-125.5
-162.2
157.2
135.4
112.9
65.8
10.3
-61.1
dB
-28.9
-21.6
-18.2
-16.3
-15.4
-15.7
-17.0
-19.2
-24.3
-35.1
-24.6
-19.7
-17.6
-17.0
-17.1
-18.5
-21.8
-28.9
-28.5
-21.7
-18.6
-17.3
-17.3
-18.5
-19.4
-17.6
-15.3
-12.6
-15.4
-8.7
S22
Mag
0.036
0.083
0.124
0.153
0.170
0.165
0.141
0.110
0.061
0.018
0.059
0.103
0.132
0.141
0.140
0.119
0.081
0.036
0.038
0.082
0.117
0.137
0.137
0.118
0.107
0.132
0.173
0.233
0.170
0.369
Ang
77.3
64.1
45.4
23.4
2.5
-19.5
-40.7
-59.7
-76.8
-32.6
21.0
2.8
-21.2
-44.8
-67.4
-91.8
-116.0
-121.7
-57.0
-59.1
-81.5
-103.3
-123.8
-135.3
-122.5
-114.2
-116.0
-138.1
-144.7
-123.6
HMMC-5021/22/26 Typical Temperature Performance
VDD = 7.0 V, IDD (@ TA = 25°C) = 150 mA
13 .015 dB/°C
.03 dB/°C
12
11
10
9
8
7
6
20
VDD = 7.0 V, VGI ≅ –0.3 V
VG2 = +2.1 V, IDD = 150 mA
VG2 = +0.5 V, IDD = 140 mA
VG2 = 0.0 V, IDD = 128 mA
VG2 = –0.5 V, IDD = 104 mA
VG2 = –1.0 V, IDD = 70 mA
VG2 = –1.5 V, IDD = 36 mA
VG2 = –3.0 V/–2.5 V, IDD = 11 mA
VG2 = –2.0 V, IDD = 14 mA
10
0
–10
–20
–30
–40
–50
2 4 6 8 10 12 14 16 18 20 22 24 26.5
5
2 4 6 8 10 12 14 16 18 20 22 24 26.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 6. Typical Small-Signal Gain vs.
Temperature.
Figure 7. Typical Gain vs. Second Gate
Control Voltage.
20
–10
VDD = 7.0 V, IDD(Q) = 150 mA
12
10
–15
P(sat)
P(–1 dB)
18
16
14
–20
6
–25
12
–30
–35
–40
–45
3rd Harmonics
–50
12
–55
10
2 4 6 8 10 12 14 16 18 20 22 24 26.5
FREQUENCY (GHz)
Figure 8. Typical 1 dB Gain
Compression and Saturated Output
Power.
8
2nd Harmonics
–60
2 4 6 8 10 12 14 16 18 20 22 24 26.5
FUNDAMENTAL FREQUENCY, ƒo (GHz)
Figure 9. Typical Second and Third
Harmonics vs. Fundamental Frequency
at POUT = +17 dBm.
NOISE FIGURE (dB)
OUTPUT POWER (dBm)
22
VDD = 7.0 V, IDD(Q) = 150 mA
HARMONICS (dBc)
24
4
10
8
ASSOCIATED GAIN (dB)
.022 dB/°C
14
TCASE:
–55°C
–25°C
0° C
+ 25°C
+ 55°C
+ 85°C
+115°C
SMALL-SIGNAL GAIN, S21 (dB)
SMALL-SIGNAL GAIN, S21 (dB)
15
6
4
2
0
2 4
6
8 10 12 14 16 18 20 22 24 26.5
FREQUENCY (GHz)
Figure 10. Typical Noise Figure
Performance.
Standard Bias:
VDD = 7.0 V, IDD = 150 mA
Optimal NF Bias:
VDD = 6.0 V, IDD = 66 mA
Note:
1. All data measured on individual devices mounted in an HP83040 Series
Modular Microcircuit Package @ TA = 25°C (except where noted).
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. In this data sheet the term typical refers to the 50th percentile performance. For
additional information contact your local HP sales representative.
6-33
O