ald1105db Advanced Linear Devices Inc (ALD), ald1105db Datasheet

ald1105db

Manufacturer Part Number

ald1105db

Description

Dual N-channel And Dual P-channel Matched Pair Mosfet

Manufacturer

Advanced Linear Devices Inc (ALD)

Datasheet

1.ALD1105DB.pdf (6 pages)

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FEATURES

• Thermal tracking between N-channel and P-channel pairs

• Low threshold voltage of 0.7V for both N-channel &

• Low input capacitance

• Low Vos -- 10mV

• High input impedance -- 10

• Low input and output leakage currents

• Negative current (I

• Enhancement mode (normally off)

• DC current gain 10

• Matched N-channel pair and matched P-channel pair in one package

ORDERING INFORMATION

GENERAL DESCRIPTION

The ALD1105 is a monolithic dual N-channel and dual P-channel

complementary matched transistor pair intended for a broad range of

analog applications.

manufactured with Advanced Linear Devices' enhanced ACMOS silicon

gate CMOS process. It consists of an ALD1116 N-channel MOSFET pair

and an ALD1117 P-channel MOSFET pair in one package. The ALD1105

is a low drain current, low leakage current version of the ALD1103.

The ALD1105 offers high input impedance and negative current temperature

coefficient. The transistor pair is matched for minimum offset voltage and

differential thermal response, and it is designed for precision signal

switching and amplifying applications in +1V to +12V systems where low

input bias current, low input capacitance and fast switching speed are

desired. Since these are MOSFET devices, they feature very large (almost

infinite) current gain in a low frequency, or near DC, operating environment.

When used in complementary pairs, a dual CMOS analog switch can be

constructed. In addition, the ALD1105 is intended as a building block for

differential amplifier input stages, transmission gates, and multiplexer

applications.

The ALD1105 is suitable for use in precision applications which require

very high current gain, beta, such as current mirrors and current sources.

The high input impedance and the high DC current gain of the field effect

transistors result in extremely low current loss through the control gate. The

DC current gain is limited by the gate input leakage current, which is

specified at 30pA at room temperature. For example, DC beta of the device

at a drain current of 3mA at 25 C is = 3mA/30pA = 100,000,000.

* Contact factory for industrial temperature range.

P-channel MOSFETs

-55 C to +125 C

14-Pin

CERDIP

Package

ALD1105 DB

INEAR

DVANCED

EVICES,

DUAL N-CHANNEL AND DUAL P-CHANNEL MATCHED PAIR MOSFET

Operating Temperature Range*

) temperature coefficient

NC.

These enhancement-mode transistors are

0 C to +70 C

14-Pin

Plastic Dip

Package

ALD1105 PB

typical

0 C to +70 C

14-Pin

SOIC

Package

ALD1105 SB

APPLICATIONS

• Precision current mirrors

• Complementary push-pull linear drives

• Discrete Analog switches

• Analog signal Choppers

• Differential amplifier input stage

• Voltage comparator

• Data converters

• Sample and Hold

• Analog current inverter

• Precision matched current sources

PIN CONFIGURATION

BLOCK DIAGRAM

N DRAIN 2 (14)

P DRAIN 2 (10)

N DRAIN 1 (1)

P DRAIN 1 (5)

DN1

GN1

DP1

GP1

SN1

SP1

DB, PB, SB PACKAGE

N GATE 1 (2)

N GATE 2 (13)

P GATE 1 (6)

P GATE 2 (9)

N SOURCE 1 (3)

SUBSTRATE (4)

N SOURCE 2 (12)

SUBSTRATE (11)

P SOURCE 2 (8)

P SOURCE 1 (7)

ALD1105

DN2

SN2

DP2

GP2

SP2

GN2

Related parts for ald1105db

ald1105db Summary of contents

Page 1

A DVANCED L INEAR D I EVICES, NC. DUAL N-CHANNEL AND DUAL P-CHANNEL MATCHED PAIR MOSFET GENERAL DESCRIPTION The ALD1105 is a monolithic dual N-channel and dual P-channel complementary matched transistor pair intended for a broad range of analog applications. ...

Page 2

ABSOLUTE MAXIMUM RATINGS Drain-source voltage Gate-source voltage Power dissipation Operating temperature range Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS unless otherwise specified Channel Parameter Symbol Min ...

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ald1105db Advanced Linear Devices Inc (ALD), ald1105db Datasheet

ald1105db

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