A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD2711A/ALD2711B
ALD2711
DUAL MICROPOWER PRECISION RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
The ALD2711 is a dual monolithic CMOS micropower precision high
slew rate operational amplifier intended for a broad range of analog
applications using
±1V
to
±6V
dual power supply systems, as well as
+2V to +12V battery operated systems. All device characteristics are
specified for +5V single supply or
±2.5V
dual supply systems. Typical
supply current is 200µA at 5V supply voltage. It is manufactured with
Advanced Linear Devices' enhanced ACMOS silicon gate CMOS
process.
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.
The ALD2711 has been developed specifically for the +5V single
supply or
±1V
to
±6V
dual supply user. Several important characteristics
of the device make application easier to implement at those voltages.
First, each operational amplifier can operate with rail to rail input and
output voltages. This means the signal input voltage and output
voltage can be at the positive and negative supply voltages. This
feature allows numerous analog serial stages and flexibility in input
signal bias levels. Secondly, each device was designed to accommodate
mixed applications where digital and analog circuits may operate off
the same power supply or battery. Thirdly, the output stage can
typically drive up to 50pF capacitive and 10KΩ resistive loads.
These features, combined with extremely low input currents, high open
loop voltage gain, high useful bandwidth, and slew rate make the
ALD2711 a versatile, micropower operational amplifier.
The ALD2711 with on-chip offset voltage trimming allows the device to
be used without nulling in most applications. The unique characteristics
of the ALD2711 are modeled in an available macromodel.
FEATURES
• Designed and characterized for 5V operation
• Linear mode operation with input voltages
300mV beyond supply rails
• Output voltages to within 2mV of power supply
rails when driving a high impedance load
• Unity gain stable
• Extremely low input bias currents -- 0.01pA
• Dual power supply
±1.0V
to
±6.0V
• Single power supply +2V to +12V
• High voltage gain
• Output short circuit protected
• Unity gain bandwidth of 0.7MHz
• Slew rate of 0.7V/µs
• Low power dissipation
• Symmetrical complementary output drive
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
Voltage follower/buffer/amplifier
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
PIN CONFIGURATION
ORDERING INFORMATION
Operating Temperature Range
-55°C to +125°C
0°C to +70°C
0°C to +70°C
8-Pin
CERDIP
Package
ALD 2711A DA
ALD 2711B DA
ALD 2711 DA
8-Pin
Small Outline
Package (SOIC)
ALD 2711A SA
ALD 2711B SA
ALD 2711 SA
8-Pin
Plastic Dip
Package
ALD 2711A PA
ALD 2711B PA
ALD 2711 PA
OUT
A
-IN
A
+IN
A
V-
1
2
3
4
TOP VIEW
DA, PA, SA PACKAGE
8
7
6
5
V+
OUT
B
-IN
B
+IN
B
* 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
ALD [ ADVANCED LINEAR DEVICES ]
