ALD2724_11 Datasheet, PDF (1/13 Pages) Advanced Linear Devices – DUAL EPAD® PRECISION HIGH SLEW RATE CMOS OPERATIONAL AMPLIFIER

ADVANCED
LINEAR
DEVICES, INC.
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EPAD
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ALD2724E/ALD2724
DUAL EPAD® PRECISION HIGH SLEW RATE CMOS OPERATIONAL AMPLIFIER
KEY FEATURES
• Factory pre-trimmed V_OS
• V_OS=25µV @ I_OS=0.01pA
• 5V/µs slew rate
• EPAD (Electrically Programmable Analog Device)
• User programmable V_OS trimmer
• Rail-to-rail input/output
• Compatible with standard EPAD Programmer
• Each amplifier V_OS can be trimmed to a different V_OS level
• High precision through in-system circuit precision trimming
• Reduces or eliminates V_OS, PSRR, CMRR and TCV_OS errors
• System level “calibration” capability
• Low voltage operation
BENEFITS
• Ready-to-use off-the-shelf standard part
• Custom automated trimming optional
• Remote controlled automated trimming
• In-System Programming capability
• No external components
• No internal clocking noise source
• Simple and cost effective
• Small package size
• Extremely small total functional
volume size
• Low system implementation cost
GENERAL DESCRIPTION
The ALD2724E/ALD2724 is a dual monolithic operational amplifier with
MOSFET input that has rail-to-rail input and output voltage ranges. The
input voltage range and output voltage range are very close to the positive
and negative power supply voltages. Typically the input voltage can be
beyond positive power supply voltage V+ or the negative power supply
voltage V- by up to 300mV. The output voltage swings to within 60mV of
either positive or negative power supply voltages at rated load.
With high impedance load, the output voltage of the ALD2724E/ALD2724
approaches within 1mV of the power supply rails. This device is designed
as an alternative to the popular J-FET input operational amplifier in
applications where lower operating voltages, such as 9V battery or ±3.25V
to ±5V power supplies are being used. The ALD2724E/ALD2724 offers
high slew rate of 5.0V/µs.
The rail-to-rail input and output feature of the ALD2724E/ALD2724
expands signal voltage range for a given operating supply voltage and
allows numerous analog serial stages to be implemented without losing
operating voltage margin. The output stage is designed to drive up to
10mA into 400pF capacitive and 1.5KΩ resistive loads at unity gain and
up to 4000pF at a gain of 5. Short circuit protection to either ground or the
power supply rails is at approximately 15mA clamp current. Due to
complementary output stage design, the output can source and sink
10mA into a load with symmetrical drive and is ideally suited for applica-
tions where push-pull voltage drive is desired.
ORDERING INFORMATION
Operating Temperature Range
0°C to +70°C
0°C to +70°C
-55°C to +125°C
14-Pin
Small Outline
Package (SOIC)
14-Pin
Plastic Dip
Package
14-Pin
CERDIP
Package
ALD2724ESB
ALD2724SB
ALD2724EPB
ALD2724PB
* Contact factory for high temperature versions.
ALD2724EDB
ALD2724DB
APPLICATIONS
• Sensor interface circuits
• Transducer biasing circuits
• Capacitive and charge integration circuits
• Biochemical probe interface
• Signal conditioning
• Portable instruments
• High source impedance electrode
amplifiers
• Precision Sample and Hold amplifiers
• Precision current to voltage converter
• Error correction circuits
• Sensor compensation circuits
• Precision gain amplifiers
• Periodic In-system calibration
• System output level shifter
PIN CONFIGURATION
-IN _A 1
+IN _A ²
N/C 3
14 VE _2A
13 VE _1A
12 OUT A
V- 4
N/C 5
11 V+
10 OUT B
+IN _B 6
9 VE _1B
-IN _B 7
8 VE _2B
TOP VIEW
SB, PB, DB PACKAGES
* N/C Pins are internally connected. Do not connect externally.
Rev 2.1 ©2011 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: [phone] Fax: [phone]
www.aldinc.com