A
L
D
DVANCED
INEAR
EVICES, INC.
ALD1702A/ALD1702B
ALD1702/ALD1703
5V RAIL-TO-RAIL PRECISION OPERATIONAL AMPLIFIER
FEATURES
GENERAL DESCRIPTION
• Rail-to-rail input and output voltage ranges
• All parameters specified for +5V single
supply or ±2.5V dual supply systems.
• High load capacitance capability --
4000pF typical
The ALD1702/ALD1703 is a 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 +12V battery
operated systems. All device characteristics are specified for +5V single
supply or ±2.5V dual supply systems. It is manufactured with Advanced
Linear Devices' enhanced ACMOS silicon gate CMOS process.
• No frequency compensation required --
unity gain stable
• Extremely low input bias currents --
1.0pA typical (30pA max.)
The device is designed to offer a balanced trade-off of performance
parameters providing a wide range of desired specifications. It offers the
industry pin configuration of µA741 and ICL7611 types.
• Idealforhighsourceimpedanceapplications
• Dual power supply ±2.5V to ±5.0V operation
• Single power supply +5V to +12V 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
(1.0MHz min.)
The ALD1702/ALD1703 has been developed specifically with the 5V
single supply or ±2.5 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.
Secondly, the device was designed to accommodate mixed applications
where digital and analog circuits may work off the same 5V power supply.
Thirdly, 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.
• Slew rate of 2.1V/µs (1.4V/µs min.)
• Low power dissipation
These features, coupled with extremely low input currents, high voltage
gain, useful bandwidth of 1.5MHz, slew rate of 2.1V/µs, low power
dissipation, low offset voltage and temperature drift, make the ALD1702/
ALD1703 a truly versatile, user friendly, operational amplifier.
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 ALD1702/ALD1703 is designed and fabricated with silicon gate
CMOStechnology,andoffers1pAtypicalinputbiascurrent. On-chipoffset
voltage trimming allows the device to be used without nulling in most
applications. Thedeviceofferstypicaloffsetdriftoflessthan7µV/°Cwhich
eliminates many trim or temperature compensation circuits. For precision
applications, the ALD1702 is designed to settle to 0.01% in 8µs.
• Sample/Hold amplifier
• Picoammeter
• Current to voltage converter
• Coaxial cable driver
PIN CONFIGURATION
ORDERING INFORMATION
Operating Temperature Range
-55°C to +125°C
0°C to +70°C
0°C to +70°C
N/C
-IN
1
8
7
6
5
N/C
8-Pin
CERDIP
Package
8-Pin
Small Outline
Package (SOIC)
8-Pin
Plastic Dip
Package
2
+
V
2
+IN
3
4
OUT
N/C
ALD1702A DA
ALD1702B DA
ALD1702 DA
ALD1703 DA
ALD1702A SA
ALD1702B SA
ALD1702 SA
ALD1703 SA
ALD1702A PA
ALD1702B PA
ALD1702 PA
ALD1703 PA
-
V
TOP VIEW
DA, PA, SA PACKAGE
* Contact factory for industrial temperature range
* N/C Pin is internally connected. Do not connect externally.
© 1998 Advanced Linear Devices, Inc. 415Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
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