
0.5 – 12 GHz Low Noise
Gallium Arsenide FET
Technical Data
ATF-10236
Features
• Low Noise Figure:
0.8␣ dB Typical at 4␣ GHz
• Low Bias:
V
= 2 V, I
DS
= 20␣ mA
DS
• High Associated Gain:
13.0␣ dB Typical at 4␣ GHz
• High Output Power: 20.0␣ dBm
Typical P
at 4␣ GHz
1dB
• Cost Effective Ceramic
Microstrip Package
• Tape-And-Reel Packaging
Option Available
[1]
Electrical Specifications, T
The ATF-10236 is a high performance
gallium arsenide Schottky-barriergate field effect transistor housed in a
cost effective microstrip package. Its
low noise figure makes this device
appropriate for use in the first and
second stages of low noise amplifiers
operating in the 0.5-12␣ GHz frequency
range.
This GaAs FET device has a nominal
0.3 micron gate length using airbridge
interconnects between drain fingers.
Total gate periphery is 500 microns.
Proven gold based metallization
systems and nitride passivation
assure a rugged, reliable device.
= 25° C
A
36 micro-X PackageDescription
Symbol Parameters and Test Conditions Units Min. Typ. Max.
NF
Optimum Noise Figure: VDS = 2 V, IDS = 25 mA f = 2.0 GHz dB 0.6
O
f = 4.0 GHz dB 0.8 1.0
f = 6.0 GHz dB 1.0
G
A
Gain @ NFO; VDS = 2 V, IDS = 25 mA f = 2.0 GHz dB 16.5
f = 4.0 GHz dB 12.0 13.0
f = 6.0 GHz dB 10.5
P
1 dB
Power Output @ 1 dB Gain Compression f = 4.0 GHz dBm 20.0
VDS = 4 V, IDS = 70 mA
G
1 dB
g
m
I
DSS
V
P
Note:
1. Refer to PACKAGING section, “Tape-and-Reel Packaging for Surface Mount Semiconductors.”
1 dB Compressed Gain: VDS = 4 V, IDS = 70 mA f = 4.0 GHz dB 12.0
Transconductance: VDS = 2 V, VGS = 0 V mmho 80 140
Saturated Drain Current: VDS = 2 V, VGS = 0 V m A 70 130 180
Pinchoff Voltage: VDS = 2 V, IDS = 1 mA V -3.0 -1.3 -0.8
5965-8697E
5-26

ATF-10236 Absolute Maximum Ratings
Absolute
Symbol Parameter Units Maximum
V
DS
V
GS
V
GD
I
DS
P
T
T
CH
T
STG
Drain-Source Voltage V +5
Gate-Source Voltage V -4
Gate-Drain Voltage V -7
Drain Current mA I
Power Dissipation
[2,3]
m W 430
Channel Temperature °C 175
Storage Temperature
[4]
°C 175
Thermal Resistance: θjc = 350°C/W; TCH = 150°C
Liquid Crystal Measurement: 1µm Spot Size
[5]
[1]
DSS
Part Number Ordering Information
Part Number Devices Per Reel Reel Size
ATF-10236-TR1 1000 7"
ATF-10236-STR 10 STRIP
For more information, see “Tape and Reel Packaging for Semiconductor Devices.”
Notes:
1. Permanent damage may occur if
any of these limits are exceeded.
2. T
CASE TEMPERATURE
= 25°C.
3. Derate at 2.9 mW/° C for
> 25°C.
T
CASE
4. Storage above +150° C may tarnish
the leads of this package making it
difficult to solder into a circuit.
After a device has been soldered
into a circuit, it may be safely
stored up to 175°C.
5. The small spot size of this technique results in a higher, though
more accurate determination of θ
than do alternate methods. See
MEASUREMENTS section for
more information.
jc
ATF-10236 Noise Parameters: V
Freq. NF
GHz dB
O
Mag Ang
= 2 V, IDS = 25 mA
DS
Γ
0.5 0.45 0.93 18 0.75
1.0 0.5 0.87 36 0.63
2.0 0.6 0.73 74 0.33
4.0 0.8 0.45 148 0.15
6.0 1.0 0.42 -137 0.12
8.0 1.3 0.49 -80 0.45
ATF-10236 Typical Performance, T
18
15
G
2.0
1.5
(dB)
1.0
O
NF
0.5
NF
O
0
2.0 6.04.0 8.0 10.0 12.0
FREQUENCY (GHz)
A
Figure 1. Optimum Noise Figure and
Associated Gain vs. Frequency.
VDS = 2V, IDS = 25 mA, TA = 25°C.
12
(dB)
A
G
9
6
1.5
1.0
(dB)
O
0.5
NF
0
02010 40 5030 60
Figure 2. Optimum Noise Figure and
Associated Gain vs. I
VDS = 2V, f = 4.0 GHz.
opt
= 25° C
A
G
A
NF
O
IDS (mA)
DS.
RN/50
16
14
12
10
30
25
(dB)
A
G
20
15
GAIN (dB)
10
5
0
0.5 1.0 2.0 4.0
MSG
2
|S21|
FREQUENCY (GHz)
Figure 3. Insertion Power Gain,
Maximum Available Gain and
Maximum Stable Gain vs. Frequency.
VDS = 2 V, IDS = 25 mA.
MAG
6.0 8.0 12.0
5-27

Typical Scattering Parameters, Common Source, Z
Freq. S
11
S
21
= 50 Ω, TA=25°C, V
O
S
12
=2 V, I
DS
=␣ 25 mA
DS␣
S
GHz Mag. Ang. dB Mag. Ang. dB Mag. Ang. Mag. Ang.
0.5 .97 -20 15.1 5.68 162 -32.8 .023 76 .47 -11
1.0 .93 -41 14.9 5.58 143 -26.0 .050 71 .45 -23
2.0 .77 -81 13.6 4.76 107 -21.3 .086 51 .36 -38
3.0 .59 -114 12.2 4.06 80 -18.4 .120 35 .30 -51
4.0 .48 -148 10.9 3.51 52 -16.5 .149 18 .23 -67
5.0 .46 166 9.6 3.03 26 -15.3 .172 3 .10 -67
6.0 .53 125 8.5 2.65 1 -14.5 .189 -14 .09 48
7.0 .62 96 6.9 2.22 -20 -14.4 .191 -28 .24 55
8.0 .71 73 4.9 1.75 -39 -14.5 .189 -41 .37 51
9.0 .75 54 3.3 1.47 -55 -14.7 .184 -46 .46 42
10.0 .78 39 2.1 1.28 -72 -14.9 .180 -59 .51 34
11.0 .82 26 0.3 1.04 -86 -14.9 .179 -71 .54 26
12.0 .84 12 -0.5 0.95 -101 -15.0 .177 -82 .54 17
A model for this device is available in the DEVICE MODELS section.
36 micro-X Package Dimensions
2.15
(0.085)
SOURCE
4
2.11 (0.083) DIA.
22
DRAIN
102
2
(0.006 ± 0.002)
3
0.508
(0.020)
0.15 ± 0.05
1
GATE
SOURCE
1.45 ± 0.25
(0.057 ± 0.010)
0.56
(0.022)
Notes:
1. Dimensions are in millimeters (inches)
2. Tolerances: in .xxx = ± 0.005
mm .xx = ± 0.13
2.54
(0.100)
4.57 ± 0.25
0.180 ± 0.010
5-28