
Specification Subject to Change Without Notice 
M-Pulse Microwave     __________________________________________________________________________________          1
PH (408) 432-1480     FX (408) 432-3440 
M-Pulse Microwave 
Silicon Bipolar MMIC
Cascadable Amplifier
MP4TD0420
Features 
 Cascadable 50
Ω
 Gain Block 
 3dB Bandwidth: DC to 2.5 GHz 
 9.5 dB Typical Gain @ 1.0 GHz 
 Unconditionally Stable (k>1) 
 Hermetic Gold-BeO Microstrip Package 
 Tape and Reel Packaging Available 
Description 
M-Pulse's MP4TD0420 is a high performance silicon 
bipolar MMIC housed in a hermetic high reliability 
stripline package.  The MP4TD0420 is useful where a 
general purpose 50
Ω
 gain block with moderate P
1 dB
characteristic is required.  Typical applications include 
narrow and wide band IF and RF amplifiers in industrial 
and military applications. 
The MP4TD0420 is fabricated using a 10 GHz fT silicon 
bipolar technology that features gold metalization and IC 
passivation for increased performance and reliability. 
TYPICAL POWER GAIN vs FREQUENCY 
12
5
6
7
8
9
10
11
0.1
1
10
FREQUENCY (GHz)
G
Gain Flat to DC
Id = 90 mA
Gold-BeO Microstrip Package Outline
1,2 
0.060
1.525
0.030
0.762
0.30
7.62
TYP.
0.132
5.42
DIA
0.205
5.21
DIA
0.020
0.51
0.053
1.35
0.003
0.076
1
2
4
3
Notes:
 (unless otherwise specified) 
1. Dimensions are in / mm 
2. Tolerance: in .xxx = 
±
.005;  mm .xx = 
±
.13 
Pin Configuration 
Pin Number
1 
2 & 4 
3 
Ordering Information 
Model No.
MP4TD0420 
Pin Description 
RF Input 
AC/DC Ground 
RF Output and DC Bias 
Package 
Hermetic Ceramic 
Electrical Specifications @ T
A
 = +25
°
C, Id = 90 mA, Z0 = 50
Ω
Symbol 
Gp 
Power Gain (
S
21
2
) 
Δ
Gp 
Gain Flatness 
f
3 dB
3 dB Bandwidth 
SWR
in
Input SWR 
SWR
out
Output SWR 
P
1 dB
Output Power @ 1 dB Gain Compression 
NF 
50 
Ω
 Noise Figure 
IP
3
Third Order Intercept Point 
t
D
Group Delay 
V
d
Device Voltage 
dV/dT 
Device Voltage Temperature Coefficient 
Parameters 
Test Conditions
f = 0.1 GHz 
f = 0.1 to 1.5 GHz 
Units 
dB 
dB 
GHz 
- 
- 
dBm 
dB 
dBm 
ps 
V 
mV/
°
C 
Min.
8.5 
- 
- 
- 
- 
14.0 
- 
- 
- 
5.7 
- 
Typ. 
9.5 
±
0.5 
2.5 
1.4 
1.8 
15.0 
6.5 
28.0 
140 
6.3 
-8.0 
Max.
10.0 
±
0.8 
- 
- 
- 
- 
- 
- 
- 
6.9 
- 
- 
f = 0.1 to 3.0 GHz 
f = 0.1 to 3.0 GHz 
f = 1.0 GHz 
f = 1.0 GHz 
f = 1.0 GHz 
f = 1.0 GHz 
- 
-