LT1078 - Micropower, Dual, Single Supply, Precision Op Amps

Features

  • Available in 8-Pin SO Package
  • 50µA Max Supply Current per Amplifier
  • 70µV Max Offset Voltage
  • 180µA Max Offset Voltage in 8-Pin SO
  • 250pA Max Offset Current
  • 0.6µVP-P, 0.1Hz to 10Hz Voltage Noise
  • 3pAP-P, 0.1Hz to 10Hz Current Noise
  • 0.4µV/°C Offset Voltage Drift
  • 200kHz Gain Bandwidth Product
  • 0.07V/µs Slew Rate
  • Single Supply Operation
    Input Voltage Range Includes Ground
    Output Swings to Ground while Sinking Current
    No Pull-Down
  • Output Sources and Sinks 5mA Load Current

Typical Application

LT1078 Typical Application
LT1078 Typical Application

Description

The LT®1078 is a micropower dual op amp in 8-pin packages including the small outline surface mount package. The LT1079 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. ±15V specifications are also provided.

Micropower performance of competing devices is achieved at the expense of seriously degrading precision, noise, speed and output drive specifications. The design effort of the LT1078/LT1079 was concentrated on reducing supply current without sacrificing other parameters. The offset voltage achieved is the lowest on any dual or quad nonchopper stabilized op amp—micropower or otherwise. Offset current, voltage and current noise, slew rate and gain bandwidth product are all two to ten times better than on previous micropower op amps.

The 1/f corner of the voltage noise spectrum is at 0.7Hz, at least three times lower than on any monolithic op amp. This results in low frequency (0.1Hz to 10Hz) noise performance which can only be found on devices with an order of magnitude higher supply current.

Both the LT1078 and LT1079 can be operated from a single supply (as low as one lithium cell or two Ni-Cad batteries). The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current—no power consuming pull down resistors are needed.

 

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LT1078ACN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1078CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1078IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1078IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1078IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1078ISW#PBF SW-16 SW I 05-08-1620 (SW16) Yes
LT1078ISW#TRPBF SW-16 SW I 05-08-1620 (SW16) Yes
LT1078S8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1078S8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1078SW#PBF SW-16 SW C 05-08-1620 (SW16) Yes
LT1078SW#TRPBF SW-16 SW C 05-08-1620 (SW16) Yes


LT1078 Package Drawing
LT1078 Package Drawing
LT1078 Package Drawing
LT1078 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1078ACN8#PBF N-8 C $6.00 $4.95 Yes
LT1078CN8#PBF N-8 C $3.33 $2.70 Yes
LT1078IN8#PBF N-8 I $4.33 $3.60 Yes
LT1078IS8#PBF SO-8 I $5.60 $4.65 Yes
LT1078IS8#TRPBF SO-8 I $4.71 Yes
LT1078ISW#PBF SW-16 I $5.58 $4.65 Yes
LT1078ISW#TRPBF SW-16 I $4.71 Yes
LT1078S8#PBF SO-8 C $4.35 $3.50 Yes
LT1078S8#TRPBF SO-8 C $3.56 Yes
LT1078SW#PBF SW-16 C $4.33 $3.50 Yes
LT1078SW#TRPBF SW-16 C $3.56 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Battery or Solar-Powered Systems
    Portable Instrumentation
    Remote Sensor Amplifier
    Satellite Circuitry
  • Micropower Sample-and-Hold
  • Thermocouple Amplifier
  • Micropower Filters

Product Notifications

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, 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

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Models for the following parts are available in LTspice:
LT1078
LT1078A

Technical Support