Tuning Varactors: MTV 4090 Series
90-Volt Abrupt Tuning Varactors
Description
The MicroMetrics MTV 4090 series
Tuning Varactors are silicon abrupt
junction devices. They offer the
highest Q and lowest resistance
available in 90 volt tuning diodes.
A unique silicon dioxide passivation
process assures greater stability,
reliability and low leakage currents
at higher temperatures.
Applications
The MTV 4090 series Tuning Varactors
are used for both narrow and wide
band tuning through X-band.
These devices are used in circuits
requiring a high Q voltage variable
capacitance such as: tunable filters
and amplifiers, voltage controlled
oscillators, frequency synthesizers
and continuous phase shifters. They
are also useful as frequency and
phase modulators in communications
applications.
Standard capacitance tolerance is
10%. Diodes can be optimized for
custom electrical or mechanical
specifications upon request.
F
eatures
Low Series Resistance - High Q
Extensive Selection of Capacitance
Values
Packaging
Available in a Wide Range of Case
Styles as well as Chip Form
MTV 4090-01
MTV 4090-02
MTV 4090-03
MTV 4090-05
MTV 4090-06
MTV 4090-07
MTV 4090-08
MTV 4090-09
MTV 4090-11
MTV 4090-12
MTV 4090-13
MTV 4090-14
MTV 4090-15
MTV 4090-16
1.0
10
100
= .46
=.70
VB=90V
100
10
1.0
.10
JUNCTION CAP
ACIT
ANCE (C
j)
(pF)
REVERSE BIAS SCALE INCLUDES WORK
FUNCTION FOR SILICON (
= .7 VOLTS)
REVERSE BIAS (Vr)
(V)
T
uning V
aractors
22
MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
Typical Performance
Tuning Varactors: MTV 4090 Series
Electrical Characteristics
Notes:
1. Capacitance tolerance is 10% except for 20% for suffix number 01, 02.
2. Q specified Vr = 4V, 50 MHz equivalent from 1 GHz or 100 MHz measurement.
Maximum Ratings
Parameter
Symbol
Value
Units
Operating Temperature
Top
-55 to + 150
C
Storage Temperature Range
Tstg
-65 to + 200
C
Reverse Voltage
Vr
90
Volts
Device Dissipation at TA = 25C
250
mW
23
T
uning V
aractors
Total Capacitance, Ct
1
Capacitance Ratio
Quality Factor, Q
2
at -4V, 1 MHz
Ct0/Ct90
at -4V, 50 MHz
Part
(pF)
MIN
MIN
Number
0.8
8.0
1000
MTV4090-01
1.0
8.0
1000
MTV4090-02
1.2
8.0
900
MTV4090-03
1.4
8.0
900
MTV4090-04
1.6
8.0
850
MTV4090-05
1.8
8.0
850
MTV4090-06
2.2
8.0
850
MTV4090-07
2.7
8.0
850
MTV4090-08
3.3
8.0
850
MTV4090-09
3.6
8.0
800
MTV4090-10
3.9
8.0
800
MTV4090-11
4.7
8.0
800
MTV4090-12
5.6
8.0
800
MTV4090-13
6.8
8.0
750
MTV4090-14
8.2
8.0
750
MTV4090-15
10.0
8.0
750
MTV4090-16
MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
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