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PDF ADA-4543 Data sheet ( Hoja de datos )
| Número de pieza | ADA-4543 | |
| Descripción | Silicon Bipolar Darlington Amplifier | |
| Fabricantes | Hewlett-Packard | |
| Logotipo |  |
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Agilent ADA-4543
Silicon Bipolar Darlington Amplifier
Data Sheet
Features
• Small Signal gain amplifier
• Operating frequency DC – 2.5 GHz
Description
Agilent Technologies’ ADA-4543
is an economical, easy-to-use,
general purpose silicon bipolar
RFIC gain block amplifiers
housed in a 4-lead SC-70
(SOT-343) surface mount plastic
package which requires only half
the board space of a SOT-143
package.
The Darlington feedback struc-
ture provides inherent broad
bandwidth performance, result-
ing in useful operating frequency
up to 2.5 GHz. This is an ideal
device for small-signal gain
cascades or IF amplification.
ADA-4543 is fabricated using
Agilent’s HP25 silicon bipolar
process, which employs a double-
diffused single polysilicon
process with self-aligned
submicron emitter geometry. The
process is capable of simulta-
neous high fT and high NPN
breakdown (25 GHz fT at 6V
BVCEO). The process utilizes
industry standard device oxide
isolation technologies and
submicron aluminum multilayer
interconnect to achieve superior
performance, high uniformity,
and proven reliability.
Surface Mount Package
SOT-343
• Unconditionally stable
• 50 Ohms input & output
• Flat, Broadband Frequency
Response up to 1 GHz
• Operating Current: 10 to 30 mA
• Industry standard SOT-343 package
Pin Connections and
Package Marking
• Lead-free option available
Specifications
900 MHz, 3.4V, 15 mA (typ.)
RFout
& Vd
GND
GND
RFin
Note:
Top View. Package marking provides orientation
and identification.
• 15.1 dB associated gain
• 1.9 dBm P1dB
• 15 dBm OIP3
• 3.7 dB noise figure
• VSWR < 2 throughput operating
frequency
“1T” = Device Code
“x” = Date code character
identifies month of manufacture.
• Single supply, typical Id = 15 mA
Applications
• Cellular/PCS/WLL base stations
Typical Biasing Configuration
• Wireless data/WLAN
Rc =
Vcc - Vd
Id
VCC = 5 V • Fiber-optic systems
Rc C bypass
• ISM
RF
input
C block
1Tx
RFC
C block
Vd = 3.4 V
RF
output
Attention:
Observe precautions for
handling electrostatic
sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 1B)
Refer to Agilent Application Note A004R:
Electrostatic Discharge Damage and Control.
1 page  
ADA-4543 Typical Scattering Parameters, TA = 25°C, Id = 12 mA
Freq.
GHz
S11
Mag. Ang.
S21
dB Mag. Ang.
S12
Mag. Ang.
S22
Mag. Ang.
K
0.1
0.071
4.9
0.5
0.112
24.8
0.9
0.184
24.2
1.0
0.198
21.6
1.5
0.257
5.9
1.9
0.282
-4.5
2.0 0.29 -7.8
2.5
0.307
-19.4
3.0 0.31 -30.7
3.5
0.303
-43.3
4.0
0.287
-58
4.5
0.273
-74.8
5.0
0.258
-94.3
5.5
0.253
-116.3
6.0
0.259
-136.7
6.5
0.254
-156.4
7.0 0.25 -177.8
7.5 0.25 157
8.0
0.266
131
8.5
0.294
106.9
9.0
0.346
87.1
9.5
0.399
70.1
10.0
0.454
57.4
14.38
14.24
13.98
13.90
13.51
13.15
13.09
12.72
12.40
12.07
11.74
11.45
11.05
10.67
10.24
9.83
9.43
8.97
8.45
7.79
7.17
6.39
5.73
5.234
5.15
4.998
4.956
4.735
4.547
4.513
4.326
4.168
4.013
3.865
3.736
3.568
3.416
3.251
3.101
2.961
2.81
2.645
2.453
2.284
2.088
1.935
176.2
162.1
148.3
144.9
129.3
117.1
114.2
99.8
85.9
72.2
58.5
45
31.4
18.2
5
-7.7
-20.5
-33.5
-46.4
-59.1
-71
-83.5
-94.8
0.125
0.123
0.12
0.119
0.116
0.113
0.113
0.111
0.109
0.109
0.109
0.111
0.113
0.118
0.125
0.135
0.148
0.161
0.172
0.181
0.192
0.204
0.213
-0.9
-4.6
-7.6
-8.3
-10.9
-12.6
-13.1
-14.8
-16.1
-17.2
-18
-18.5
-19.2
-19.8
-21
-22.8
-26.1
-31.1
-37.1
-43.2
-49
-55.7
-62.9
0.146
0.15
0.183
0.191
0.207
0.213
0.212
0.203
0.185
0.162
0.139
0.12
0.11
0.114
0.122
0.121
0.116
0.116
0.134
0.171
0.223
0.281
0.339
-3.2
-3.8
-6
-7.7
-18.7
-27.2
-29.1
-38
-46.8
-57
-69.3
-87
-106.9
-126.3
-144.9
-163.1
173.8
143.7
111.8
87.5
71.6
60.3
50.8
1.1
1.1
1.1
1.1
1.1
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.4
1.4
1.3
1.3
1.3
1.2
1.2
1.2
1.2
1.1
1.1
Notes:
1. S-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. The input reference plane is at the end of the input lead. The
output reference plane is at the end of the output lead.
5
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