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340S14-U

Description
4 Matched NPN Transistors
File Size87KB,5 Pages
ManufacturerETC2
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340S14-U Overview

4 Matched NPN Transistors

Low-Noise Matched
Transistor Array ICs
THAT
300 Series
FEATURES
• 4 Matched NPN Transistors
º 300 typical h
fe
of 100
º 300A minimum h
fe
of 150
º 300B minimum h
fe
of 300
APPLICATIONS
• Low Noise Front Ends
• Microphone Preamplifiers
• Log/Antilog Amplifiers
• Current Sources
• Current Mirrors
• Multipliers
• 4 Matched PNP Transistors
º 320 typical h
fe
of 75
• 2 Matched PNP and 2 Matched NPN
Transistors
º 340 PNP typical h
fe
of 75
º 340 NPN typical h
fe
of 100
• Low Voltage Noise
º 0.75 nV/
√Hz
(PNP)
º 0.8 nV/
√Hz
(NPN)
• High Speed
º f
T
= 350 MHz (NPN)
º f
T
= 325 MHz (PNP)
• 500
μV
matching between devices
• Dielectrically Isolated for low crosstalk
and high DC isolation
• 36V V
CEO
Description
The THAT 300, 320 and 340 are large
geometry, 4-transistor, monolithic NPN and/or PNP
arrays. They exhibit both high speed and low noise,
with excellent parameter matching between transis-
tors of the same gender. Typical base-spreading
resistance is 25
for the PNP devices (30
for the
low-gain NPNs), so their resulting voltage noise is
under 1 nV/√Hz. This makes the 300 series ideally
suited for low-noise amplifier input stages, log ampli-
fiers, and many other applications. The four-NPN
transistor array is available in versions selected for
h
fe
with minimums of 150 (300A) or 300 (300B).
Fabricated in a dielectrically isolated, comple-
mentary bipolar process, each transistor is electri-
cally insulated from the others by a layer of
insulating oxide (not the reverse-biased PN junctions
used in conventional arrays). As a result, they exhibit
inter-device crosstalk and DC isolation similar to
that of discrete transistors. The resulting low
collector-to-substrate capacitance produces a typical
NPN f
T
of 350 MHz (325 MHz for the PNPs).
Substrate biasing is not required for normal opera-
tion, though the substrate should be ac-grounded to
optimize speed and minimize crosstalk.
An eight-transistor bare-die array with similar
performance characteristics (the THAT 380G) is also
available from THAT Corporation. Please contact us
directly or through your local distributor for more
information. Military-grade temperature range
packages are available from TT Semiconductor (see
www.ttsemiconductor.com for more information).
Part Number
300P14-U
300S14-U
300AS14-U
300BS14-U
320P14-U
320S14-U
340P14-U
340S14-U
Configuration
4-Matched NPN Transistors, Beta = 60 min.
4-Matched NPN Transistors, Beta = 150 min.
4-Matched NPN Transistors, Beta = 300 min.
4-Matched PNP Transistors
2-Matched NPN Transistors and
2-Matched PNP Transistors
Table 1. Ordering Information
Package
DIP14
SO14
SO14
SO14
DIP14
SO14
DIP14
SO14
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com
Copyright © 2010, THAT Corporation. Document 600041 Rev 02

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340S14-U THAT300S14-U 300S14-U 320P14-U 340P14-U 300BS14-U 320S14-U
Description 4 Matched NPN Transistors 4 Matched NPN Transistors 4 Matched NPN Transistors 4 Matched NPN Transistors 4 Matched NPN Transistors 4 Matched NPN Transistors 4 Matched NPN Transistors

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