LT1464 Datasheet | Linear Technology

LT1464/LT1465 Dual/Quad Micropower, 1MHz C-Load Picoampere Bias Current JFET Input Op Amps Features s DESCRIPTION The LT ®1464 (dual) and LT1465 (quad) are the first micropower op amps (200µA max per amp) to offer picoampere input bias currents (500f A typ) and unity-gain stability for capacitive loads up to 10n F. The output can swing a 10k load to within 1.5V of either supply, just like op amps that require an order of magnitude more supply current. This unique bination of performance makes the LT1464/LT1465 ideal over a wide range of input and output impedances. In the design and testing of the LT1464/LT1465, particular emphasis has been placed on optimizing performance in the low cost SO-8 (dual) and 14-lead SO (quad) package for ± 15V and ± 5V supplies. The input mon mode range includes the positive rail. Slew rate (0.5V/µs min) and gain bandwidth product (650k Hz min) are 100% tested. A full set of matching specifications is also provided. , LTC and LT are registered trademarks of Linear Technology Corporation. C-Load is a trademark of Linear Technology Corporation. s s s s s s s s s Input Bias Current: 2p A Max (LT1464A) 20p A Max (LT1464, LT1465) Supply Current per Amplifier: 200µA Max Gain Bandwidth Product: 1MHz Typ Slew Rate: 0.9V/µs Typ Input mon Mode Range Includes Positive Rail Unity-Gain Stable for C-Load TM Up to 10n F Open-Loop Gain: 1 Million Typ Guaranteed Specs with ± 5V, ± 15V Supplies Guaranteed Matching Specifications Standard Pinout: SO-8, SO-14 Package U APPLICATIONS s s s s Battery-Powered Systems Photocurrent Amplifiers Low Frequency, Micropower Active Filters Low Droop Track-and-Hold Circuits TYPICAL APPLICATION Micropower Low Droop Track-and-Hold/Peak Detector V+ 1/4 LTC201 13 A 16 1 MCT2 4 V- 5 14 V+ 2 7 R1- 1 MCT2 2 2 5 3 6 4 5 3 6 4 2 5 15 C1 10n F POLYSTYRENE Small-Signal Response, CLOAD = 10n F + 1/2 LT1464 - + 8 1 VOUT 1/2 LT1464 4 V- TYPICAL DROOP = IN 1/4 LTC201 B 1 - LT1464 - TA01 0.5p A = 0.05m V/s 10n F TOTAL...