LT1102 - High Speed, Precision, JFET Input Instrumentation Amplifier (Fixed Gain = 10 or 100)

Features

  • Slew Rate: 30V/µs
  • Gain-Bandwidth Product: 35MHz
  • Settling Time (0.01%): 3µs
  • Overdrive Recovery: 0.4µs
  • Gain Error: 0.05% Max
  • Gain Drift: 5ppm/°C
  • Gain Nonlinearity: 16ppm Max
  • Offset Voltage (Input + Output): 600µV Max
    – Drift with Temperature: 2µV/°C
  • Input Bias Current: 40pA Max
  • Input Offset Current: 40pA Max
    -Drift with Temperature (to 70°C):
    0.5pA/°C

Typical Application

LT1102 Typical Application
LT1102 Typical Application

Description

The LT1102 is the first fast FET input instrumentation amplifier offered in the low cost, space saving 8-pin packages. Fixed gains of 10 and 100 are provided with excellent gain accuracy (0.01%) and non-linearity (3ppm). No external gain setting resistor is required.

Slew rate, settling time, gain-bandwidth product, overdrive recovery time are all improved compared to competitive high speed instrumentation amplifiers.

Industry best speed performance is combined with impressive precision specifications: less than 10pA input bias and offset currents, 180µV offset voltage. Unlike other FET input instrumentation amplifiers, on the LT1102 there is no output offset voltage contribution to total error, and input bias currents do not double with every 10°C rise in temperature. Indeed, at 70°C ambient temperature the input bias current is only 40pA.

Packaging

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

DIP-8

LT1102 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1102ACN8 PDIP 8 C $8.17 $6.60 View
LT1102ACN8#PBF PDIP 8 C $8.17 $6.60 View
LT1102CN8 PDIP 8 C $5.83 $4.75 View
LT1102CN8#PBF PDIP 8 C $5.83 $4.75 View
LT1102IN8 PDIP 8 I $7.25 $5.95 View
LT1102IN8#PBF PDIP 8 I $7.25 $5.95 View
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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

  • Fast Settling Analog Signal Processing
  • Multiplexed Input Data Acquisition Systems
  • High Source Impedance Signal Amplification from High Resistance Bridges, Capacitance Sensors, Photodetector Sensors
  • Bridge Amplifier with <1Hz Lowpass Filtering

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Design Tools

LTspiceIV

LTspice IV 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 IV

Models for the following parts are available in LTspice IV:
LT1102
LT1102A

Technical Support