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ALD1721E

Advanced Linear Devices
Part Number ALD1721E
Manufacturer Advanced Linear Devices
Description EPAD MICROPOWER OPERATIONAL AMPLIFIER
Published Mar 23, 2005
Detailed Description ADVANCED LINEAR DEVICES, INC. EPAD® MICROPOWER CMOS OPERATIONAL AMPLIFIER TM e® EPAD D E L B A N E ALD1721E KEY FEATUR...
Datasheet PDF File ALD1721E PDF File

ALD1721E
ALD1721E

Overview
ADVANCED LINEAR DEVICES, INC.
EPAD® MICROPOWER CMOS OPERATIONAL AMPLIFIER TM e® EPAD D E L B A N E ALD1721E KEY 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-system circuit precision trimming • Reduces or eliminates VOS, PSRR, CMRR and TCVOS errors • System level “calibration” capability • Application Specific Programming mode • In-System Programming mode • Electrically programmable to compensate for external component tolerances • Achieves 0.
01pA input bias current and 35µV input offset voltage simultaneously • Compatible with industry standard pinout BENEFITS • Eliminates manual and elaborate system trimming procedures • Remote controlled automated trimming • In-System Programming capability • No external components • No internal chopper clocking noise • No chopper dynamic power dissipation • Simple and cost effective • Small package size • Extremely small total functional volume size • Low system implementation cost • Micropower and Low Voltage GENERAL DESCRIPTION The ALD1721E 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 operational amplifier is a direct replacement of the ALD1701 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 incircuit 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 devi...


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