A
L
D
DVANCED
INEAR
EVICES, INC.
ALD2701A/ALD2701B
ALD2701
DUAL MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
FEATURES
The ALD2701 is a dual monolithic CMOS micropower 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. Supply current is 500µA
maximum at 5V supply voltage. It is manufactured with Advanced Linear
Devices' enhanced ACMOS silicon gate CMOS process.
• All parameters specified for +5V single
supply or ±2.5V dual supply systems
• Rail to rail input and output voltage ranges
• Unity gain stable
• Extremely low input bias currents -- 1.0pA
• High source impedance applications
• 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 output drive
The ALD2701 is designed to offer a trade-off of performance parameters
providing a wide range of desired specifications. It offers the popular
industry standard pin configuration of µA747 and ICL7621 types.
The ALD2701 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 equal to 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.
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
These features, combined with extremely low input currents, high open
loop voltage gain of 100V/mV, useful bandwidth of 700KHz, a slew rate of
0.7V/µs,lowpowerdissipationof0.5mW,lowoffsetvoltageandtemperature
drift, maketheALD2701aversatile, micropowerdualoperationalamplifier.
• Sample/Hold amplifier
• Picoammeter
• Current to voltage converter
TheALD2701,designedandfabricatedwithsilicongateCMOStechnology,
offers1pAtypicalinputbiascurrent. Onchipoffsetvoltagetrimmingallows
the device to be used without nulling in most applications.
Due to low voltage and low power operation, reliability and operating
characteristics, such as input bias currents and warm up time, are greatly
improved.
PIN CONFIGURATION
ORDERING INFORMATION
Operating Temperature Range
+
V
8
7
1
2
OUT
-IN
A
A
-55°C to +125°C
0°C to +70°C
0°C to +70°C
OUT
-IN
B
8-Pin
8-Pin
8-Pin
3
4
6
5
+IN
CERDIP
Package
Small Outline
Package (SOIC)
Plastic Dip
Package
B
A
-
V
+IN
B
ALD 2701A DA
ALD 2701B DA
ALD 2701 DA
ALD 2701A SA
ALD 2701B SA
ALD 2701 SA
ALD 2701A PA
ALD 2701B PA
ALD 2701 PA
TOP VIEW
DA, PA, SA PACKAGE
* Contact factory for industrial temperature range
© 1998 Advanced Linear Devices, Inc. 415Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com