ald1102b Advanced Linear Devices Inc (ALD), ald1102b Datasheet
ald1102b
Manufacturer Part Number
ald1102b
Description
Dual P-channel Matched Mosfet Pair
Manufacturer
Advanced Linear Devices Inc (ALD)
Datasheet
1.ALD1102B.pdf
(4 pages)
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 -- 10
• Low input and output leakage currents
• Negative current (I
• Enhancement-mode (normally off)
• DC current gain 10
ORDERING INFORMATION
* Contact factory for industrial temperature range.
© 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
-55 C to +125 C
8-Pin
CERDIP
Package
ALD1102 DA
A
L
D
INEAR
DVANCED
EVICES,
DS
Operating Temperature Range*
9
I
) temperature coefficient
NC.
0 C to +70 C
8-Pin
Plastic Dip
Package
ALD1102A PA
ALD1102B PA
ALD1102 PA
12
DUAL P-CHANNEL MATCHED MOSFET PAIR
typical
0 C to +70 C
8-Pin
SOIC
Package
ALD1102 SA
APPLICATIONS
• Precision current mirrors
• Precision current sources
• Analog switches
• Choppers
• Differential amplifier
• Voltage comparator
• Data converters
• Sample and Hold
• Analog inverter
PIN CONFIGURATION
BLOCK DIAGRAM
SOURCE
input stage
DRAIN
GATE
NC
DRAIN 1 (3)
DRAIN 2 (5)
1
1
1
4
1
2
3
DA, PA, SA PACKAGE
ALD1102A/ALD1102B
GATE 1 (2)
GATE 2 (6)
TOP VIEW
SOURCE 1 (1)
SUBSTRATE (8)
SOURCE 2 (7)
8
7
5
6
ALD1102
SUBSTRATE
SOURCE
GATE
DRAIN
2
2
2
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ald1102b Summary of contents
Page 1
... CERDIP Plastic Dip Package Package ALD1102A PA ALD1102B PA ALD1102 DA ALD1102 PA * Contact factory for industrial temperature range. © 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com APPLICATIONS • Precision current mirrors • ...
Page 2
... Conductance Drain Source R DS(ON) ON Resistance Drain Source ON Resistance R DS(ON) Mismatch Drain Source Breakdown BV DSS Voltage Off Drain Current I DS(OFF) Gate Leakage I GSS Current Input C ISS Capacitance ALD1102A/ALD1102B ALD1102 PA, SA package DA package 1102A 1102B Min Typ Max Min Typ Max -0.4 -0.7 -1.2 -0.4 -0.7 -1 -1.3 -1.3 -8 -16 -8 -16 ...
Page 3
... I = -1mA DS 200 100 DRAIN - SOURCE VOLTAGE (V) R vs. GATE - SOURCE VOLTAGE DS (ON) 10000 1000 100 GATE - SOURCE VOLTAGE (V) ALD1102A/ALD1102B ALD1102 V = -12V GS -10V -8V -6V -4V - -10 - -5mA +125 -10 - +125 -10 ...
Page 4
... ALD1102A/ALD1102B ALD1102 Advanced Linear Devices 4 ...