ALD2701A

Features:

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 -- 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


Application

• 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


Pinout




Specifications

ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+                     13.2V
Differential input voltage range          -0.3V to V+
+0.3V
Power dissipation                600 mW
Operating temperature range PA,SA package        0°C to +70°C
DA package -55°C to +125°C
Storage temperature range -65°C to +150°C
Lead temperature, 10 seconds                 +260°C


Description

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.  ALD2701 is manufactured with Advanced Linear Devices' enhanced ACMOS silicon gate CMOS process.
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 of ALD2701 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 of 100V/mV, useful bandwidth of 700KHz, a slew rate of 0.7V/µs, low power dissipation of 0.5mW, low offset voltage and temperature drift, make the ALD2701 a versatile, micropower dual operational amplifier.The ALD2701, designed and fabricated with silicon gate CMOS technology, offers 1pA typical input bias current.  On chip offset voltage trimming allows 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.