LT1077 - Micropower, Single Supply, Precision Op Amp

Features

  • 60µA Max Supply Current
  • 40µV Max Offset Voltage
  • 350pA Max Offset Current
  • 0.5µVp-p 0.1Hz to 10Hz Voltage Noise
  • 2.5pAp-p 0.1Hz to 10Hz Current Noise
  • 0.4µV/°C Offset Voltage Drift
  • 250kHz Gain-Bandwidth-Product
  • 0.12V/µs Slew Rate
  • Single Supply Operation
  • Input Voltage Range Includes Ground
  • Output Swings to Ground while Sinking Current
  • No Pull-Down Resistors are Needed
  • Output Sources and Sinks 5mA Load Current

Typical Application

LT1077 Typical Application

Description

The LT®1077 is a micropower precision operational amplifier optimized for single supply operation at 5V. addition, ±15V specifications are provided.

Micropower performance of competing devices is achieved at the expense of seriously degrading precision, noise, speed, and output drive specifications. The LT1077 reduces supply current without sacrificing other parameters. The offset voltage achieved is the lowestof any micropower op amp. 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. This results in low frequency (0.1Hz to 10Hz) noise performance which can only be found on devices with anorder of magnitude higher supply current.

The LT1077 is completely plug-in compatible (including nulling) with all industry standard precision op amps. Thus, it can replace these precision op amps in many applications without sacrificing performance, yet with significant power savings.

The LT1077 can be operated from one lithium cell or two Ni-Cad batteries. The input range goes below ground. The all-NPN output stage swings to ground while sinking current—no pull-down resistors are needed.

For dual and quad op amps with similar specifications please see the LT1078/LT1079 datasheet.

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
LT1077ACN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1077AIN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1077CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1077IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1077IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1077IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1077S8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1077S8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes


LT1077 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
LT1077ACN8#PBF N-8 C $3.75 $3.10 Yes
LT1077AIN8#PBF N-8 I $4.92 $4.00 Yes
LT1077CN8#PBF N-8 C $2.08 $1.60 Yes
LT1077IN8#PBF N-8 I $2.75 $2.25 Yes
LT1077IS8#PBF SO-8 I $2.80 $2.35 Yes
LT1077IS8#TRPBF SO-8 I $2.41 Yes
LT1077S8#PBF SO-8 C $2.42 $1.95 Yes
LT1077S8#TRPBF SO-8 C $2.01 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.

Part Number Description Price Documentation
DC417B DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp $25.00
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Click here to view our complete list of demo boards

Applications

  • Replaces OP-07, OP-77, AD707, LT1001, LT1012 at 10 to 60 Times Lower Power
  • Battery or Solar Powered Systems
  • 4mA to 20mA Current Loops
  • Two Terminal Current Source
  • Megaohm Source Resistance Difference Amplifier

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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

Models for the following parts are available in LTspice:
LT1077
LT1077A

Technical Support