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THAT340S: DescriptionLow-Noise Matched Transistor Array ICs; File Size89KB，5 Pages; ManufacturerETC

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Low-Noise Matched Transistor Array ICs

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T H AT

Corporation

FEATURES

4 Matched NPN Transistors (300)

4 Matched PNP Transistors (320)

2 Matched NPNs and PNPs (340)

4 Matched NP6N - 4 Matched PNP (380)

Monolithic Construction

Low Noise

- 0.75

nV Hz

(

PNP

)

- 0.8

nV Hz

(

NPN

)

High Speed

- f

= 350 MHz (NPN)

- f

= 325 MHz (PNP)

Excellent Matching – 500

typical

between devices of same gender

Dielectrically Isolated

36V V

CEO

Low-Noise Matched Transistor Array ICs

THAT 300 Series

APPLICATIONS

Microphone Preamplifiers

Current Sources

Current Mirrors

Log/Antilog Amplifiers

Multipliers

Servos

DESCRIPTION

The THAT300 Series ICs are large-geometry

monolithic NPN and/or PNP transistor arrays which

combine low noise, high speed and excellent para-

metric matching between devices of the same gender.

The large geometries typically result in 25

base

spreading resistance for the PNP devices (30

for

the NPNs), producing 0.75

nV Hz

voltage noise

(0.8

nV Hz

for the NPNs). This makes the 300

Series an ideal choice for low-noise amplifier input

stages.

Fabricated on a Complementary Bipolar Dielec-

trically Isolated process, each transistor is electri-

cally isolated from the others by a layer of insulating

oxide. The resulting low collector-to-substrate capac-

itance produces a typical NPN f

of 350 MHz,

325 MHz for the PNPs. This delivers ac performance

similar to discrete 2N3904- and 2N3906-class de-

vices. Dielectric isolation also minimizes crosstalk

and provides complete DC isolation.

Substrate biasing is not required for normal op-

eration, though the substrate should be grounded to

optimize speed and minimize inter-device crosstalk.

The monolithic construction assures excellent pa-

rameter matching and tracking over temperature.

Part Number

THAT300P

Configuration

4-Matched NPN Transistors

Package

DIP14

SO14

DIP14

THAT300S

THAT320P

4- Matched PNP Transistors

THAT320S

THAT340P

THAT340S

THAT380G

2 Matched NPN Transistors and

2 Matched PNP Transistors

4 Matched NPN Transistors and

4 Matched PNP Transistors

Table 1. Ordering Info

SO14

DIP14

SO14

Individual Die

THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA

Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com

THAT340S Related Products

	THAT340S	THAT340P	THAT320S	THAT320P	THAT300S	THAT300	THAT300P
Description	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs	Low-Noise Matched Transistor Array ICs

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