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ALD2726E Datasheet(PDF) 1 Page - Advanced Linear Devices |
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ALD2726E Datasheet(HTML) 1 Page - Advanced Linear Devices |
1 / 13 page Rev 2.1 ©2011 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286 www.aldinc.com GENERAL DESCRIPTION The ALD2726E/ALD2726 is a dual monolithic rail-to-rail precision CMOS operational amplifier with integrated user programmable EPAD (Electri- cally Programmable Analog Device) based offset voltage adjustment. The ALD2726E/ALD2726 is a dual version of the ALD1726E/ALD2726 opera- tional amplifier. Each ALD2721E/ALD2721 operational amplifier features individual user-programming offset voltage trimming, resulting in signifi- cantly 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 cost-effective trimming solution for achieving the very highest amplifier/system performance. The ALD2726E/ALD2726 dual operational amplifier features rail-to-rail input and output voltage ranges, tolerance to over-voltage input spikes of 300mV beyond supply rails, capacitive loading up to 25pF, extremely low input currents of 0.01pA typical, high open loop voltage gain, useful bandwidth of 700KHz, slew rate of 0.7V/ µs, and low typical supply current of 50 µA for both amplifiers. BENEFITS • Eliminates manual and elaborate system trimming procedures • Remote controlled automated trimming • In-System Programming capability • No external components • No internal clocking noise source • Simple and cost effective • Small package size • Extremely small total functional volume size • Low system implementation cost • Micropower APPLICATIONS • 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 KEY FEATURES • EPAD (Electrically Programmable Analog Device) • User programmable VOS trimmer • Computer-assisted trimming • Rail-to-rail input/output • Compatible with standard EPAD Programmer • Each amplifier VOS can be trimmed to a different VOS level • 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 35 µV input offset voltage simultaneously • ±1V to ±5V operation 1 2 3 4 5 6 7 11 12 13 14 8 9 10 VE 2A VE 1A V- N/C VE 2B VE 1B OUT B OUT A +IN A -IN A +IN B -IN B N/C V+ PIN CONFIGURATION TOP VIEW SB, PB, DB PACKAGES * N/C Pins are internally connected. Do not connect externally. ORDERING INFORMATION Operating Temperature Range 0 °C to +70°C0°C to +70°C -55 °C to +125°C 14-Pin 14-Pin 14-Pin Small Outline Plastic Dip CERDIP Package (SOIC) Package Package ALD2726ESB ALD2726EPB ALD2726EDB ALD2726SB ALD2726PB ALD2726DB * Contact factory for high temperature versions. eEPAD TM ® N A B L E D E DUAL EPAD® ULTRA MICROPOWER CMOS OPERATIONAL AMPLIFIER ALD2726E/ALD2726 ADVANCED LINEAR DEVICES, INC. |
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