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ALD114813 Datasheet(PDF) 1 Page - Advanced Linear Devices

Part No. ALD114813
Description  QUAD/DUAL N-CHANNEL DEPLETION MODE EPAD MATCHED PAIR MOSFET ARRAYS
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Maker  ALD [Advanced Linear Devices]
Homepage  http://www.aldinc.com
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ALD114813 Datasheet(HTML) 1 Page - Advanced Linear Devices

   
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e
EPAD
TM
®
N A
B L
E D
E
ADVANCED
LINEAR
DEVICES, INC.
*N/C pins are internally connected.
Connect to V- to reduce noise
PC, SC PACKAGES
PA, SA PACKAGES
PIN CONFIGURATION
VGS(th)= -1.3V
ALD114813/ALD114913
QUAD/DUAL N-CHANNEL DEPLETION MODE EPAD®
MATCHED PAIR MOSFET ARRAYS
GENERAL DESCRIPTION
ALD114813/ALD114913 are monolithic quad/dual N-Channel MOSFETS matched
at the factory using ALD’s proven EPAD CMOS technology. These devices are
intended for low voltage, small signal applications. They are excellent functional
replacements for normally-closed relay applications, as they are normally on (con-
ducting) without any power applied, but could be turned off or modulated when
system power supply is turned on. These MOSFETS have the unique character-
istics of, when the gate is grounded, operating in the resistance mode for low
drain voltage levels and in the current source mode for higher voltage levels and
providing a constant drain current.
These MOSFETS are designed for exceptional device electrical characteristics
matching. As these devices are on the same monolithic chip, they also exhibit
excellent temperature tracking characteristics. They are versatile as design com-
ponents for a broad range of analog applications, and they are basic building
blocks for current sources, differential amplifier input stages, transmission gates,
and multiplexer applications. Besides matched pair electrical characteristics, each
individual MOSFET also exhibits well controlled parameters, enabling the user to
depend on tight design limits. Even units from different batches and different date
of manufacture have correspondingly well matched characteristics.
These depletion mode devices are built for minimum offset voltage and differen-
tial thermal response, and they are designed for switching and amplifying appli-
cations in single 1.5V to +/-5V systems where low input bias current, low input
capacitance and fast switching speed are desired. These devices exhibit well
controlled turn-off and sub-threshold charactersitics and therefore can be used in
designs that depend on sub-threshold characteristics.
The ALD114813/ALD114913 are suitable for use in precision applications which
require very high current gain, beta, such as current mirrors and current sources.
A sample calculation of the DC current gain at a drain current of 3mA and gate
input leakage current of 30pA = 100,000,000. It is recommended that the user, for
most applications, connect V+ pin to the most positive voltage potential (or left
open unused) and V- and N/C pins to the most negative voltage potential in the
system. All other pins must have voltages within these voltage limits.
Operating Temperature Range*
0°C to +70°C0°C to +70°C
16-Pin
16-Pin
8-Pin
8-Pin
Plastic Dip
SOIC
Plastic Dip
SOIC
Package
Package
Package
Package
ALD114813PC
ALD114813SC
ALD114913PA
ALD114913SA
ORDERING INFORMATION
FEATURES
• Depletion mode (normally ON) without power
• Precision Gate Threshold Voltages: -1.30V +/- 0.04V
• Nominal RDS(ON) @VGS=0.0V of 1.3KΩ
• Matched MOSFET to MOSFET characteristics
• Tight lot to lot parametric control
• Low input capacitance
• VGS(th) match (VOS) — 20mV
• High input impedance — 1012Ω typical
• Positive, zero, and negative VGS(th) temperature coefficient
• DC current gain >108
• Low input and output leakage currents
APPLICATIONS
• Functional replacement of Form B (NC) relay
• Zero power fail safe circuits
• Backup battery circuits
• Power failure detector
• Fail safe signal detector
• Source followers and buffers
• Precision current mirrors
• Precision current sources
• Capacitives probes
• Sensor interfaces
• Charge detectors
• Charge integrators
• Differential amplifier input stage
• High side switches
• Peak detectors
• Sample and Hold
• Alarm systems
• Current multipliers
• Analog switches
• Analog multiplexers
• Voltage comparators
• Level shifters
N/C*
1
2
3
14
15
16
4
13
5
12
N/C*
6
7
8
10
11
GN1
DN1
N/C*
DN4
N/C*
GN4
9
GN3
DN3
DN2
GN2
V+
S34
S12
V-
V+
V-
ALD114813
M 4
M 3
M 1
M 2
V-
V-
V-
V-
V-
GN1
DN1
N/C*
S12
DN2
GN2
ALD114913
1
2
3
6
7
8
4
5
M 1
M 2
V-
N/C*
V-
V-
* Contact factory for industrial temp. range or user-specified threshold voltage values
Rev 1.0-0506 ©2005 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com


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