LT1797 - 10MHz, Rail-to-Rail Input and Output Op Amp in SOT-23

Features

  • Rail-to-Rail Input and Output
  • Small SOT-23 Package
  • Gain Bandwidth Product: 10MHz
  • –40°C to 85°C Operation
  • Slew Rate: 2.25V/μs
  • Low Input Offset Voltage: 1.5mV Max
  • High Output Current: 25mA Min
  • Specified on 3V, 5V and ±5V Supplies
  • High Voltage Gain: 1000V/mV 10k Load
  • High CMRR: 96dB Typ
  • High PSRR: 90dB Typ
  • Input Bias Current: 300nA Max
  • Input Offset Current: 25nA Max
  • Low Profile (1mm) SOT-23 (ThinSOT™) Package

Typical Application

LT1797 Typical Application
LT1797 Typical Application

Description

The LT1797 is a unity-gain stable 10MHz op amp available in the small SOT-23 package that operates on all single and split supplies with a total voltage of 2.7V to 12V. The amplifier draws 1mA of quiescent current and has a slew rate of 2.25V/μs.

The input common mode range of the LT1797 includes both rails, making it ideal for current sensing applications. The input stage incorporates phase reversal protection to prevent false outputs from occurring when the inputs are driven beyond the supplies. Protective resistors are included in the input leads so that current does not become excessive when the inputs are forced above or below the supplies.

The output of the LT1797 can swing to within 50mV of V+ and 8mV of V without drawing excess current in either condition. The amplifier can drive loads up to 25mA and still maintain rail-to-rail capability.

The LT1797 op amp is available in the space saving 5-lead SOT-23 package.

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
LT1797CS5#PBF SOT-23 S5 C 05-08-1635 Yes
LT1797CS5#TRMPBF SOT-23 S5 C 05-08-1635 Yes
LT1797CS5#TRPBF SOT-23 S5 C 05-08-1635 Yes
LT1797IS5#PBF SOT-23 S5 I 05-08-1635 Yes
LT1797IS5#TRMPBF SOT-23 S5 I 05-08-1635 Yes
LT1797IS5#TRPBF SOT-23 S5 I 05-08-1635 Yes


LT1797 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
LT1797CS5#PBF SOT-23 C $1.27 Yes
LT1797CS5#TRMPBF SOT-23 C $1.27 $1.02 Yes
LT1797CS5#TRPBF SOT-23 C $1.27 $1.00 Yes
LT1797IS5#PBF SOT-23 I $1.47 Yes
LT1797IS5#TRMPBF SOT-23 I $1.47 $1.28 Yes
LT1797IS5#TRPBF SOT-23 I $1.47 $1.26 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

  • Portable Instrumentation
  • Rail-to-Rail Buffer Amplifiers
  • Low Voltage Signal Processing
  • Driving A/D Converters
  • Battery-Powered Systems

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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

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Models for the following parts are available in LTspice:
LT1797

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