AMT2142041A
Data Sheet
Rev. 1.0 February 2007
9.5 -12 GHz Ultra Low Noise Amplifier
Functional Diagram
Features
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Frequency Range: 9.5-12 GHz
Ultra Low Noise Figure ~0.8 dB (on-wafer)
Gain : 18 dB
+7dBm P1dB @ 2V, 2V
Input Return Loss <- 10 dB
Output Return Loss <- 18 dB
Single supply operation
No external matching required
DC decoupled RF Ports
0.15-um InGaAs pHEMT Technology
Chip Dimensions: 2.1 x 1.7 x 0.1 mm
RF
in
RF
out
Vd1
Vd2
Typical Applications
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Radar front end
Military
Test Equipment and Sensors
Point-to-Point Radios, Point-to-Multi-Point Radios & VSATS
General X-Band Gain Block / Driver amplifier
Description
The AMT2142041A is a 2-stage Ultra Low Noise Amplifier, operating in 9.5-12GHz frequency
band. The LNA features 18 dB of nominal gain and a typical mid-band noise figure of 1.2 dB. Input
and output ports are DC decoupled. On-chip Bypass capacitors are provided in Drain Bias path.
The chip operates on a single positive supply. The typical P1dB is 7 dBm and can be increased to
14dBm when the last stage is operated at 4V. The LNA is unconditionally stable. Circuit grounds
are provided through vias to the backside metallization. In addition to being used as the first
stage, the LNA’s excellent linearity encourages its usage for in the succeeding stages of a
receiver chain. The LNA ‘s good return losses and flat gain over the band makes it ideal to be
used as a cascadable gain block.
Absolute Maximum Ratings(1)
Parameter
Absolute Maximum
Units
Positive DC voltage
+6
V
RF input power
+ 15
dBm
Supply Current
65
mA
o
Operating Temperature
-55 to +85
C
o
Storage Temperature
-65 to +150
C
1. Operation beyond these limits may cause permanent damage to the component
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 1 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Electrical Specifications (1) @ TA = 25oC, Zo=50 Ω, Vd1=2V, Vd2=2V
Parameter
Typ.
Typ.
Units
9.5 – 10.5
10.5 - 12
GHz
Gain
18.5
18.5
dB
Gain Flatness
± 0.1
± 0.3
dB
0.7(2)/1.2
0.8(2)/1.6
dB
Input Return Loss (min.)
9
15
dB
Output Return Loss (min.)
15
18
dB
Frequency Range
Noise Figure (max.)
Output Power (P1dB) (min.)
+7/14(2)
dBm
Saturated Output Power (Psat)
+10/17(2)
dBm
Output Third Order Intercept (OIP3)
15/23(2)
dBm
Supply Current (Id)
38/43(2)
mA
Note:
1. Electrical Specifications as measured in a test fixture
2. On-Wafer measurement at Vd1=1V, Vd2=2V
3. Vd1=2, Vd2=4V
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 2 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
On-Wafer Test data
Vd1=1V, Vd2, =2V, Total Current = 25 mA, TA = 27 oC
Gain @ Vd1=1V,Vd2=2V
30
25
Gain (dB)
20
15
10
5
0
8
8.5
9
9.5
10
10.5
Frequency (GHz)
11
11.5
12
11
11.5
12
Noise Figure @ Vd1=1V,Vd2=2V
1.2
1.1
NF (dB)
1
0.9
0.8
0.7
0.6
0.5
8
8.5
9
9.5
10
10.5
Frequency (GHz)
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
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Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
On-Wafer Test data
Vd1=1V, Vd2, =2V, Total Current = 25 mA, TA = 27 oC
Input and Output ReturnLoss @ Vd1=1V,Vd2=2V
0
-5
IRL
Return Loss
-10
-15
ORL
-20
-25
-30
-35
8
8.5
9
9.5
10
10.5
Frequency (GHz)
11
11.5
12
Isolation @ Vd1=1V,Vd2=2V
-25
-30
Isolation (dB)
-35
-40
-45
-50
-55
-60
8
8.5
9
9.5
10
10.5
Frequency (GHz)
11
11.5
12
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 4 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1, Vd2, =2V, Total Current = 37 mA, TA = 27oC
Gain
20.0
19.0
18.0
17.0
Gain (dB)
16.0
15.0
14.0
13.0
12.0
11.0
10.0
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Noise Figure
1.8
1.6
1.4
NF (dB)
1.2
1
0.8
0.6
0.4
0.2
0
8
8.5
9
9.5
10
10.5
Frequency (GHz)
11
11.5
12
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 5 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1, Vd2, =2V, Total Current = 37 mA, TA = 27oC
Input return loss
0
-5
Return loss (dB)
-10
-15
-20
-25
-30
-35
9.5
10
10.5
11
Frequency (GHz)
11.5
12
11.5
12
Output return loss
0
Return loss (dB)
-5
-10
-15
-20
-25
9.5
10
10.5
11
Frequency (GHz)
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
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Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1, Vd2, =2V, Total Current = 37 mA, TA = 27oC
Isolation
-20
Isolation (dB)
-25
-30
-35
-40
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Gain Compression at 10 GHz
20
19
18
17
P1dB =7.5 dBm
Gain (dB)
16
15
14
13
12
11
10
-25
-20
-15
-10
Input Power (dBm)
-5
0
5
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
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Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Performance over Temperature
Vd1, Vd2 =2V, Total Current = 37 mA, TA = 25 oC
Id
-40 oC
37 mA
+ 25 oC
38 mA
+60 oC
38mA
Gain
20.0
19.0
18.0
17.0
Gain (dB)
16.0
15.0
14.0
+ 27 deg C
13.0
+ 60 deg C
12.0
- 40 deg C
11.0
10.0
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Noise Figure
2
1.8
1.6
1.4
NF (dB)
1.2
1
0.8
0.6
+ 60 deg C
0.4
+ 27 deg C
0.2
- 40 deg C
0
8
8.5
9
9.5
10
10.5
Frequency (GHz)
11
11.5
12
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 8 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Performance over Temperature
Vd1, Vd2 =2V, Total Current = 37 mA, TA = 25 oC
Id
-40 oC
37 mA
+ 25 oC
38 mA
+60 oC
38mA
Input return loss
0
- 40 deg C
-5
+ 27 deg C
Return loss (dB)
-10
+ 60 deg C
-15
-20
-25
-30
-35
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Output return loss
0
- 40 deg C
-5
Return loss (dB)
+ 27 deg C
+ 60 deg C
-10
-15
-20
-25
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 9 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Performance over Temperature
Vd1, Vd2 =2V, Total Current = 37 mA, TA = 25 oC
-40 oC
37 mA
Id
+ 25 oC
38 mA
+60 oC
38mA
Isolation
-20
Isolation (dB)
-25
-30
-35
- 40 deg C
+ 27 deg C
+ 60 deg C
-40
9.5
10
10.5
11
Frequency (GHz)
11.5
12
Gain Compression at 10 GHz
20
19
- 40 deg C
18
+ 60 deg C
17
+ 27 deg C
Gain (dB)
16
15
14
13
12
11
10
-25
-20
-15
-10
Input Power (dBm)
-5
0
5
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
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Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Mechanical Characteristics
1.73 [0.068]
2
1.08 [0.042]
0.93 [0.036]
0.78 [0.031]
1
4
3
5
6
RF IN
RF OUT
VD1
16 15 14 13 12
11
7
1.01 [0.040]
0.86 [0.034]
0.71 [0.028]
VD2
10
9
8
1.09 [0.043] 1.45 [0.057]
2.13 [0.084]
Units: millimeters (inches)
All RF and DC bond pads are 100µm x 100µm
Note:
1. Pad no. 1 : RF IN
2. Pad no. 7 : RF OUT
3. Pad no. 11 : 1st stage drain supply
4. Pad no. 9 : 2nd stage drain supply
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 11 of 12
Email: info@astramtl.com
URL: www.astramtl.com
AMT2142041A
Data Sheet
Rev. 1.0 February 2007
Recommended Assembly Diagram
2
RF IN
(50Ohm)
1
4
3
5
6
RF OUT
(50 Ohm)
RF IN
1
RF OUT
7
7
9
11
VD1
16
15
14
13
12
11
VD2
10
9
100pF
VD1
0.1µF
8
100pF
VD2
0.1µF
Note:
1. Single one mil (0.0254 mm) bond wire of length 350um should be used for RF Input.
2. Two 1 mil (0.0254 mm) bond wires of length 250um should be used for RF Output and DC
bias at VD.
3. Bond Pad Nos 2,3,4,5,6 and 12,13,14,15 may be used for increasing Id1 & Id2
respectively by grounding them.
4. Additional 100pF Bypass capacitor needs to be used in Drain bias path.
Die attach: For Epoxy attachment, use of a two-component conductive epoxy is recommended. An
epoxy fillet should be visible around the total die periphery. If Eutectic attachment is preferred, use of
fluxless AuSn (80/20) 1-2 mil thick preform solder is recommended. Use of AuGe preform should be
strictly avoided.
Wire bonding: For DC pad connections use either ball or wedge bonds. For best RF performance,
use of 150 - 200µm length of wedge bonds is advised. Single Ball bonds of 250-300µm though
acceptable, may cause a deviation in RF performance.
GaAs MMIC devices are susceptible to Electrostatic discharge.
Proper precautions should be observed during handling,
assembly & testing
All information and Specifications are subject to change without prior notice
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 12 of 12
Email: info@astramtl.com
URL: www.astramtl.com