A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD4706A/ALD4706B
ALD4706
QUAD ULTRA MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
The ALD4706 is a quad monolithic CMOS ultra 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. Total supply current for four
operational amplifiers is 200µA maximum at 5V supply voltage. It is
manufactured with Advanced Linear Devices' enhanced ACMOS silicon
gate CMOS process.
The ALD4706 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 LM324 types and ICL7641 types.
The ALD4706 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 these 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 or
near 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 25pF capacitive
and 20KΩ resistive loads. These features, combined with extremely low
input currents, high open loop voltage gain of 100V/mV, useful bandwidth
of 200KHz, a slew rate of 0.17V/µs, low power dissipation of 0.5mW, low
offset voltage and temperature drift, make the ALD4706 a versatile, ultra
micropower quad operational amplifier.
The ALD4706, designed and fabricated with silicon gate CMOS techno-
logy, offers 0.1pA typical input bias current. Due to low voltage and low
power operation, reliability and operating characteristics, such as input
bias currents and warm up time, are greatly improved.
FEATURES
• 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 -- 0.1pA
• 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 0.2MHz
• Slew rate of 0.17V/µs
• Power dissipation of 20µA per op amp
• Symmetrical 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
OUT
A
IN -
A
1
14
OUT
D
IN -
D
IN +
D
V-
IN +
C
IN -
C
OUT
C
2
13
ORDERING INFORMATION
IN +
A
3
4
12
Operating Temperature Range
-55°C to +125°C
0°C to +70°C
0°C to +70°C
14-Pin
CERDIP
Package
ALD4706A DB
ALD4706B DB
ALD4706 DB
14-Pin
Small Outline
Package (SOIC)
ALD4706A SB
ALD4706B SB
ALD4706 SB
14-Pin
Plastic Dip
Package
ALD4706A PB
ALD4706B PB
ALD4706 PB
V+
IN +
B
IN -
B
OUT
B
11
5
10
6
9
7
8
DB, PB, SB PACKAGE
* 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 ]
