LTC6240

RECOMMENDED FOR NEW DESIGNS

Single 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amp

Data Sheet Product Selection Table
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Overview

  • 0.1Hz to 10Hz Noise: 550nVP-P
  • Input Bias Current:
    • 0.2pA (Typ at 25°C)
    • 1pA Max (LTC6240)
  • Low Offset Voltage: 125μV Max
  • Low Offset Drift: 2.5μV/°C Max
  • Gain Bandwidth Product: 18MHz
  • Output Swings Rail-to-Rail
  • Supply Operation:
    • 2.8V to 6V LTC6240/LTC6241/LTC6242
    • 2.8V to ±5.5V LTC6240HV/LTC6241HV/LTC6242HV
  • Low Input Capacitance
  • H-Grade Temperature Range: –40°C to 125°C
  • Single LTC6240 in 5-Pin Low Profile (1mm) ThinSOT™ Package and 8-Pin SO for PCB Guard Ring
  • Dual LTC6241 in 8-Pin SO and Tiny DFN Packages
  • Quad LTC6242 in 16-Pin SSOP and 5mm × 3mm DFN Packages

The LTC6240/6241/LTC6242 are single, dual and quad low noise, low offset, rail-to-rail output, unity gain stable CMOS op amps that feature 1pA of input bias current. Input bias current is guaranteed to be 1pA max on the single LTC6240. The 0.1Hz to 10Hz noise of only 550nVP-P, along with an offset of just 125μV are significant improvements over traditional CMOS op amps. Additionally, noise is guaranteed to be less than 10nV/√Hz at 1kHz. An 18MHz gain bandwidth, and 10V/μs slew rate, along with the wide supply range and low input capacitance, make them perfect for use as fast signal processing amplifiers.

These op amps have an output stage that swings within 30mV of either supply rail to maximize the signal dynamic range in low supply applications. The input common mode range extends to the negative supply. They are fully specified on 3V and 5V, and an HV version guarantees operation on supplies up to ±5V.

The LTC6240 is available in the 8-pin SO and the 5-pin SOT-23 packages. The LTC6241 is available in the 8-pin SO, and for compact designs it is packaged in a tiny dual fine pitch leadless (DFN) package. The LTC6242 is available in the 16-pin SSOP as well as the 5mm × 3mm DFN package.

Applications

  • Photo Diode Amplifiers
  • Charge Coupled Amplifiers
  • Low Noise Signal Processing
  • Medical Instrumentation
  • High Impedance Transducer Amplifier
LTC6240
Single 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amp
Low Noise Single-Ended Input to Differential Output Amplifier Noise Voltage vs Frequency Product Package 1 Product Package 2 Product Package 3 Product Package 4 Product Package 5 Product Package 6
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Data Sheet

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Current Mirrors & Matched Devices 1
LT5400
RECOMMENDED FOR NEW DESIGNS Quad Matched Resistor Network
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC6240

Analog Photodiode Wizard

Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

Open Tool

Signal Chain Designer

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

Open Tool
LTspice

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.

Evaluation Kits

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schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC417B

DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp

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Product Details

DC417B: Demo Board


 
DC417B
DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp
DC417B Demo Board DC417B Demo Board DC417B Demo Board DC417B Demo Board DC417B - Schematic

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