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MAT14 Datasheet(PDF) 1 Page - Analog Devices

Part No. MAT14
Description  Matched Monolithic Quad Transistor
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
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MAT14 Datasheet(HTML) 1 Page - Analog Devices

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Matched Monolithic Quad Transistor
MAT14
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2010 Analog Devices, Inc. All rights reserved.
FEATURES
Low offset voltage: 400 µV maximum
High current gain: 300 minimum
Excellent current gain match: 4% maximum
Low voltage noise density at 100 Hz, 1 mA
3 nV/√Hz maximum
Excellent log conformance
Bulk resistance (r
BE) = 0.6 Ω maximum
Guaranteed matching for all transistors
APPLICATIONS
Low noise op amp front end
Current mirror and current sink/source
Low noise instrumentation amplifiers
Voltage controlled attenuators
Log amplifiers
PIN CONFIGURATION
C1 1
B1 2
E1 3
SUB
4
C4
14
B4
13
E4
12
SUB
11
E2 5
E3
10
B2 6
B3
9
C2 7
C3
8
MAT14
TOP VIEW
(Not to Scale)
Figure 1.
GENERAL DESCRIPTION
The MAT14 is a quad monolithic NPN transistor that offers
excellent parametric matching for precision amplifier and
nonlinear circuit applications. Performance characteristics
of the MAT14 include high gain (300 minimum) over a wide
range of collector current, low noise (3 nV/√Hz maximum at
100 Hz, IC = 1 mA), and excellent logarithmic conformance.
The MAT14 also features a low offset voltage of 100 µV typical
and tight current gain matching to within 4%. Each transistor of
the MAT14 is individually tested to data sheet specifications.
For matching parameters (offset voltage, input offset current,
and gain match), each of the dual transistor combinations are
verified to meet stated limits. Device performance is guaranteed
at an ambient temperature of 25°C and over the industrial tem-
perature range.
The long-term stability of matching parameters is guaranteed
by the protection diodes across the base emitter junction of
each transistor. These diodes prevent degradation of beta and
matching characteristics due to reverse bias, base emitter current.
The superior logarithmic conformance and accurate matching
characteristics of the MAT14 make it an excellent choice for use
in log and antilog circuits. The MAT14 is an ideal choice in
applications where low noise and high gain are required.


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