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ALD1722
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Part Number: ALD1722

Description: The ALD1722E/ALD1722 is a monolithic rail-to-rail precision CMOS operational amplifier with integrated user programmabl...

ALD1722 General Description

The ALD1722E/ALD1722 is a monolithic rail-to-rail precision CMOS operational amplifier with integrated user programmable EPAD (Electrically Programmable Analog Device) based offset voltage adjustment. The ALD1722E/ALD1722 is a direct replacement of the ALD1702 operational amplifier, with the added feature of user-programmable offset voltage trimming resulting in significantly enhanced total system performance and user flexibility. EPAD technology is an exclusive ALD design which has been refined for analog applications where precision voltage trimming is necessary to achieve a desired performance. It utilizes CMOS FETs as in-circuit elements for trimming of offset voltage bias characteristics with the aid of a personal computer under software control. Once programmed, the set parameters are stored indefinitely within the device even after power-down. EPAD offers the circuit designer a convenient and costeffective trimming solution for achieving the very highest amplifier/system performance.

The ALD1722E/ALD1722 operational amplifier features rail-to-rail input and output voltage ranges, tolerance to over-voltage input spikes of 300mV beyond supply rails, high capacitive loading up to 4000pF, extremely low input currents of 0.01pA typical, high open loop voltage gain, useful bandwidth of 1.5 MHz, slew rate of 2.1 V/ms, and low supply current of 0.8mA.

ALD1722 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

ALD1722 Features

• EPAD ( Electrically Programmable Analog Device)
• User programmable VOS trimmer
• Computer-assisted trimming
• Rail-to-rail input/output
• Compatible with standard EPAD Programmer
• High precision through in-situ circuit precision trimming
• Reduce or eliminate VOS, PSRR, CMRR and TCVOS errors
• System level "calibration" capability
• In-System Programming capable
• Electrically programmable to compensate for external component tolerances
• Achieve 0.01pA input bias current and 25mV input offset voltage simultaneously
• Compatible with industry standard pinout

ALD1722 Typical Application

• Sensor interface circuits
• Transducer biasing circuits
• Capacitive and charge integration circuits
• Biochemical probe interface
• Signal conditioning
• Portable instruments
• High source impedance electrode amplifiers
• Precision Sample and Hold amplifiers
• Precision current to voltage converter
• Error correction circuits
• Sensor compensation circuits
• Precision gain amplifiers
• Periodic In-system calibration
• System output level shifter

ALD1722 datasheet

ALD1722
PDF/DataSheet Download

Datasheet: ALD1722
File Size: 65960 KB
Manufacturer: ALD [Advanced Linear Devices]
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Related Part Number

ALD1722 Relative Products

ALD1721SA
ALD1721PA
ALD1721ESA
ALD1721EPA
ALD1721E
The ALD1721E/ALD1721 is a monolithic rail-to-rail precision CMOS operational amplifier with integrated user programmable EPAD (Electrically Programmable Analog Device) based offset voltage adjustment. The ALD1721E/ALD1721 operational amplifier is a direct re...
ALD1721
The ALD1721E/ALD1721 is a monolithic rail-to-rail precision CMOS operational amplifier with integrated user programmable EPAD (Electrically Programmable Analog Device) based offset voltage adjustment. The ALD1721E/ALD1721 operational amplifier is a direct re...

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