A
L
D
DVANCED
INEAR
EVICES, INC.
ALD1706A/ALD1706B
ALD1706/ALD1706G
ULTRA MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
FEATURES
The ALD1706 is a monolithic CMOS ultra micropower high slew-rate, high
performance 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+5Vsinglesupplyor ±2.5Vdualsupplysystems. Supplycurrentis40µA
maximum at 5V supply voltage. It is manufactured with Advanced Linear
Devices' enhanced ACMOS silicon gate CMOS process.
• 20µA supply current
• All parameters specified for +5V single
supply or ± 2.5V dual supply systems
• Rail to rail input and output voltage ranges
• No frequency compensation required --
unity gain stable
• Extremely low input bias currents -- 0.1pA
typical (30pA max.)
The ALD1706 is designed to offer high performance for a wide range of
applications requiring very low power dissipation. It offers the popular
industry standard single operational amplifier pin configuration.
• Idealforhighsourceimpedanceapplications
• Dual power supply ±1.0V to±6.0V operation
• Single power supply +2V to +12V operation
• High voltage gain – typically 100V/mV
@ ±2.5V (100dB)
The ALD1706 has been developed specifically for the +5V single battery
or ±1V to ±6V dual battery user. Several important characteristics of the
device make application easier to implement at those voltages. First, the
operational amplifier can operate with rail to rail input and output voltages.
This means the signal input voltage and output voltage can be close to or
equal to the positive and negative supply voltages. This feature allows
numerous analog serial stages and flexibility in input signal bias levels.
Secondly, the device was designed to accommodate mixed applications
where digital and analog circuits may operate off the same power supply
orbattery. Thirdly,theoutputstagecantypicallydriveupto25pFcapacitive
and 20KΩ resistive loads. These features, combined with extremely low
input currents, high open loop voltage gain of 100V/mV, useful bandwidth
of400KHz,aslewrateof0.17V/µs,lowoffsetvoltageandtemperaturedrift,
make the ALD1706 a versatile, micropower operational amplifier.
• Drive as low as a 20KΩ load
• Output short circuit protected
• Unity gain bandwidth of 0.4MHz
• Slew rate of 0.17V/µs
APPLICATIONS
• Voltage amplifier
• 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
The ALD1706, designed and fabricated with silicon gate CMOS techno-
logy, offers0.1pAtypicalinputbiascurrent. Onchipoffsetvoltagetrimming
allows the device to be used without nulling in most applications.
• Sample/Hold amplifier
• Picoammeter
• Current to voltage converter
PIN CONFIGURATION
ORDERING INFORMATION
Operating Temperature Range
N/C
-IN
1
2
8
7
N/C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
+
V
8-Pin
8-Pin
8-Pin
CERDIP
Package
Small Outline
Package (SOIC)
Plastic Dip
Package
3
4
OUT
N/C
6
5
+IN
-
V
ALD1706A DA
ALD1706B DA
ALD1706 DA
ALD1706A SA
ALD1706B SA
ALD1706 SA
ALD1706A PA
ALD1706B PA
ALD1706 PA
ALD1706G PA
TOP VIEW
DA, PA, SA PACKAGE
*
N/C Pin is connected internally. Do not connect externally.
* 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