LT1492

PRODUCTION

5MHz, 3V/µs, Low Power Single Supply, Dual and Quad Precision Op Amps

Data Sheet Product Selection Table
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Overview

  • Gain-Bandwidth Product: 5MHz Typ
  • Slew Rate: 3V/µs Typ
  • Low Supply Current per Amplifier: 0.55mA Max
  • Input Offset Voltage: 180µV Max
  • Input Offset Voltage Drift: 3µV/°C Max
  • Input Offset Current: 20nA Max
  • Input Bias Current: 100nA Max
  • Open-Loop Gain: 1500V/mV Min (VS = ±15V)
  • Low Input Noise Voltage: 16.5nV/√Hz
  • Low Input Noise Current: 0.14pA/√Hz
  • Large Output Drive Current: 20mA Min
  • Single Supply Operation
    • Input Voltage Range Includes Ground
    • Output Swings to Ground while Sinking Current
  • Wide Supply Voltage Range: 2.5V to 36V
  • Specified on 3.3V, 5V and ±15V
  • Dual in 8-Pin PDIP and SO Package
  • Quad in a Narrow 16-Pin SO Package

The LT1492/LT1493 are dual/quad, low power, single supply precision op amps with 5MHz gain-bandwidth product, 3V/µs slew rate and only 450µA of quiescent supply current per amplifier.

With a maximum input offset voltage of only 180µV, the LT1492/LT1493 eliminate trims in most systems while providing high frequency performance not usually found in low power single supply amplifiers.

The LT1492/LT1493 will operate on any supply greater than 2.5V and less than 36V total, and are specified on single 3.3V, single 5V and ±15V supplies. Even with their low quiescent supply current the minimum output drive is 20mA, ideal for driving low impedance loads.

The inputs can be driven beyond the supplies without damage or phase reversal of the output. The low operating voltage and wide input and output range make the LT1492/LT1493 amplifiers ideal for battery-powered applications. For applications requiring faster precision single supply amplifiers, see the 14MHz, 7V/µs LT1211/LT1212, the 28MHz, 12V/µs LT1213/LT1214 or the 23MHz, 50V/µs LT1215/LT1216.

Applications

  • Battery-Powered Systems
    • Portable Instrumentation
  • Active Filters
  • Photodiode Amplifiers
  • DAC Current to Voltage Amplifiers
LT1492
5MHz, 3V/µs, Low Power Single Supply, Dual and Quad Precision Op Amps
Precision AC to DC Converter (Full Wave Rectifier and Filter) Distribution of Offset Voltage Drift with Temperature Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

Data Sheet

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LT1492

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.

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LTspice

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