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THAT140

That
Part Number THAT140
Manufacturer That
Description Quad Low-Noise NPN / PNP Transistor Array
Published Dec 14, 2006
Detailed Description www.DataSheet4U.com T H AT Corporation FEATURES · · · Two Matched NPN Transistors Two Matched PNP Transistors Monolithi...
Datasheet PDF File THAT140 PDF File

THAT140
THAT140

Overview
www.
DataSheet4U.
com T H AT Corporation FEATURES · · · Two Matched NPN Transistors Two Matched PNP Transistors Monolithic Construction Low Noise — 0.
75 nV/ Hz (PNP) — 0.
8 nV/ Hz (NPN) High Speed — ft= 350 MHz (NPN) — ft= 325 MHz (PNP) Excellent Matching - 500 mV typ Dielectrically Isolated 25 V VCEO · · · · · · Quad Low-Noise NPN / PNP Transistor Array THAT 140 APPLICATIONS Microphone Preamplifiers Tape Head Preamplifiers Current Sources Current Mirrors Log/Antilog Amplifiers Multipliers · · · · DESCRIPTION THAT140 is a quad, large-geometry monolithic NPN/PNP transistor array which combines low noise, high speed and excellent parametric matching.
The large geometries typically result in 25 W base spreading resistance for the PNP devices (30 W for the NPNs), producing 0.
75 nV Hz voltage noise (0.
8 nV Hz for the NPNs).
This makes these parts an ideal choice for low-noise amplifier input stages.
Fabricated on a Complementary Bipolar Dielectrically Isolated process, all four transistors are electrically isolated from each other by a layer of oxide.
The resulting low collector-to-substrate capacitance produces a typical NPN ft of 350 MHz, 325 Mhz for the PNPs.
This delivers AC performance similar to discrete 2N3904- and 2N3906-class devices.
Dielectric isolation also minimizes crosstalk and provides complete DC isolation.
Substrate biasing is not required for normal operation, though the substrate should be grounded to optimize speed.
The monolithic construction assures excellent parameter matching and tracking over temperature.
14 13 Q2 Q1 1 2 12 11 NC 10 9 Q4 8 Q3 3 4 5 6 SUB 7 Figure 1.
Pin Configuration THAT Corporation; 45 Sumner St.
, Milford, Massachusetts; 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.
thatcorp.
com Rev.
11/29/00 Page 2 SPECIFICATIONS 1 Maximum Ratings (T A = 25 ° C) Parameter NPN Collector-Emitter Voltage NPN Collector-Base Voltage NPN Emitter-Base Voltage NPN Collector Current NPN Emitter Current PNP Co...


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