A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD2702A/ALD2702B
ALD2702
DUAL 5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
The ALD2702A/ALD2702B/ALD2702 is a dual monolithic operational
amplifier intended primarily for a wide range of analog applications in +5V
single power supply and
±5V
dual power supply systems as well as +4V
to +10V battery operated systems. All device characteristics are specified
for +5V single supply or
±2.5V
dual supply systems. The device has an
input stage that operates to +300mV above and -300mV below the supply
voltages with no adverse effects and/or phase reversals. It offers popular
industry pin configuration.
The ALD2702A/ALD2702B/ALD2702 has been developed specifically
with the +5V single supply or
±2.5V
dual supply user in mind. Several
important characteristics of the device make many applications easy to
implement for these supply voltages. First, the operational amplifier can
operate with rail to rail input and output voltages. This feature allows
numerous analog serial stages to be implemented without losing operating
voltage margin. Second, the device was designed to accommodate
mixed applications where digital and analog circuits may work off the
same 5V power supply. Third, the output stage can drive up to 400pF
capacitive and 5KΩ resistive loads in non-inverting unity gain connection
and double the capacitance in the inverting unity gain mode.
These features, coupled with extremely low input currents, high voltage
gain, useful bandwidth of 1.5MHz, a slew rate of 1.9V/µs, low power
dissipation, low offset voltage and temperature drift, make the ALD2702A/
ALD2702B/ALD2702 a truly versatile, user friendly, operational amplifier.
The ALD2702A/ALD2702B/ALD2702 is designed and fabricated with
silicon gate CMOS technology, and offers less than 1pA typical input bias
current. On-chip offset voltage trimming allows the device to be used
without nulling in most applications. The device offers typical offset drift
of less than 7µV/°C which eliminates many trim or temperature
compensation circuits. For precision applications, the ALD2702A/
ALD2702B/ALD2702 is designed to settle to 0.01% in 8µs. Additionally,
robust design and rigorous screening make this device especially suitable
for operation in temperature-extreme environments and rugged conditions.
FEATURES
• Rail-to-rail input and output voltage ranges
• Symmetrical push-pull class AB output
drivers
• All parameters specified for +5V single
supply or
±2.5V
dual supply systems
• High load capacitance capability -- drives
up to 4000pF typical
• No frequency compensation required --
unity gain stable
• Extremely low input bias currents --
<1.0pA typical
• Ideal for high source impedance applications
• Dual power supply
±2.5V
to
±5V
operation
• Single power supply +5V to +10V operation
• High voltage gain -- typically 85V/mV
@
±2.5V
and 250V/mV @
±5.0V
• Drive as low as 2KΩ load with 5mA
drive current
• Output short circuit protected
• Unity gain bandwidth of 1.5MHz
• Slew rate of 1.9V/µs
• Low power dissipation
• Suitable for rugged, temperature-extreme
environments
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
•
Voltage follower/buffer
Charge integrator
Photodiode amplifier
Data acquisition systems
High performance portable instruments
Signal conditioning circuits
Sensor and transducer amplifiers
Low leakage amplifiers
Active filters
Sample/Hold amplifier
Picoammeter
Current to voltage converter
Coaxial cable driver
ORDERING INFORMATION
(“L” suffix denotes lead-free (RoHS))
Operating Temperature Range
0°C to +70°C
0°C to +70°C
-55°C to 125°C
8-Pin
Small Outline
Package (SOIC)
ALD2702ASAL
ALD2702BSAL
ALD2702SAL
8-Pin
Plastic Dip
Package
ALD2702APAL
ALD2702BPAL
ALD2702PAL
8-Pin
CERDIP
Package
ALD2702ADA
ALD2702BDA
ALD2702DA
PIN CONFIGURATION
V+
OUT
B
-IN
B
+IN
B
OUT
A
-IN
A
+IN
A
V-
1
2
3
4
TOP VIEW
SAL, PAL, DA PACKAGES
8
7
6
5
* Contact factory for leaded (non-RoHS) or high temperature versions.
Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286
www.aldinc.com
ALD [ ADVANCED LINEAR DEVICES ]
