LT1463

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LT1463

Dual/Quad Micropower, 260µW C-Load Picoampere Bias Current JFET Input Op Amps

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Features

Input Bias Current:
- 2pA Max (LT1462A)
- 20pA Max (LT1462, LT1463)
Supply Current per Amplifier: 45µA Max
Unity-Gain Stable for C-Load^™ Up to 10nF
Input Common Mode Range Includes Positive Rail
Guaranteed Specs with ±5V, ±15V Supplies
Gain Bandwidth Product: 175kHz Typ
Slew Rate: 0.13V/µs Typ
Guaranteed Matching Specifications
Standard Pinout: SO-8, SO-14 Package

Additional Details

The LT1462 (dual) and LT1463 (quad) are the first micropower op amps (45µA max per amp) to offer picoampere input bias currents (1pA typ) and unity gain stability for capacitive loads up to 10nF. 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 combination of performance makes the LT1462/LT1463 ideal over a wide range of input and output impedances.

In the design and testing of the LT1462/LT1463, particular emphasis has been placed on optimizing performance in the low cost SO-8 (dual) and 14-lead SO package (quad) for ±15V and ±5V supplies. The input common mode range includes the positive rail. Slew rate (0.08V/µs min) and gain bandwidth product (125kHz min) are 100% tested. A full set of matching specifications is also provided.

Applications

Battery-Powered Systems
Photocurrent Amplifiers
Low Frequency, Micropower Active Filters
Low Droop Track-and-Hold Circuits

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Technical Documents 3

LT1462/LT1463: Dual/Quad Micropower, 260µW C-Load Picoampere Bias Current JFET Input Op Amps Data Sheet 08/31/2007

R040 Reliability Data 03/26/2018

Design Note 136: Micropower Dual and Quad JFET Op Amps Feature pA Input Bias Currents and C-LoadTM Drive Capability 09/01/1996

LTspice 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.