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ALD1102PA Datasheet(PDF) 1 Page - Advanced Linear Devices

Part # ALD1102PA
Description  DUAL P-CHANNEL MATCHED MOSFET PAIR
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Manufacturer  ALD [Advanced Linear Devices]
Direct Link  http://www.aldinc.com
Logo ALD - Advanced Linear Devices

ALD1102PA Datasheet(HTML) 1 Page - Advanced Linear Devices

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GENERAL DESCRIPTION
The ALD1102 is a monolithic dual P-channel matched transistor pair
intended for a broad range of analog applications. These enhancement-
mode transistors are manufactured with Advanced Linear Devices' en-
hanced ACMOS silicon gate CMOS process.
The ALD1102 offers high input impedance and negative current tempera-
ture coefficient. The transistor pair is matched for minimum offset voltage
and differential thermal response, and it is designed for switching and
amplifying applications in +2V 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
with an ALD1101, a dual CMOS analog switch can be constructed. In
addition, the ALD1102 is intended as a building block for differential
amplifier input stages, transmission gates, and multiplexer applications.
The ALD1102 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 50pA at room temperature. For example, DC beta of the device
at a drain current of 5mA at 25
°C is = 5mA/50pA = 100,000,000.
FEATURES
• Low threshold voltage of 0.7V
• Low input capacitance
• Low Vos grades -- 2mV, 5mV, 10mV
• High input impedance -- 1012
Ω typical
• Low input and output leakage currents
• Negative current (IDS) temperature coefficient
• Enhancement-mode (normally off)
• DC current gain 109
APPLICATIONS
• Precision current mirrors
• Precision current sources
• Analog switches
• Choppers
• Differential amplifier
input stage
• Voltage comparator
• Data converters
• Sample and Hold
• Analog inverter
ADVANCED
LINEAR
DEVICES, INC.
DUAL P-CHANNEL MATCHED MOSFET PAIR
ALD1102A/ALD1102B
ALD1102
Operating Temperature Range*
-55
°C to +125°C0°C to +70°C0°C to +70°C
8-Pin
8-Pin
8-Pin
CERDIP
Plastic Dip
SOIC
Package
Package
Package
ALD1102A PA
ALD1102B PA
ALD1102 DA
ALD1102 PA
ALD1102 SA
* Contact factory for industrial temperature range.
ORDERING INFORMATION
PIN CONFIGURATION
1
2
3
4
8
7
6
5
SOURCE 1
GATE 1
DRAIN 1
NC
SUBSTRATE
SOURCE 2
GATE 2
DRAIN 2
TOP VIEW
DA, PA, SA PACKAGE
SOURCE 1 (1)
SUBSTRATE (8)
SOURCE 2 (7)
GATE 2 (6)
DRAIN 1 (3)
GATE 1 (2)
DRAIN 2 (5)
BLOCK DIAGRAM
© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com


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