LT LT1638HS8

Общее назначениеRail-to-Rail1,2 МГц

Overview

The LT1638HS8 is a low power dual rail-to-rail input and output operational amplifier available in the standard 8-pin PDIP and SO packages as well as the 8-lead MSOP package. The LT1639 is a low power quad rail-to-rail input and output operational amplifier offered in the standard 14-pin PDIP and surface mount packages. For space limited applications the LT1638HS8 is available in a 3mm × 3mm × 0.8mm dual fine pitch leadless package (DFN).

The input range of the LT1638/LT1639 includes both supplies, and a unique feature of this device is its capability to operate over the top with either or both of its inputs above V+. The inputs handle 44V, both differential and common mode, independent of supply voltage. The input stage incorporates phase reversal protection to prevent false outputs from occurring when the inputs are below the negative supply. Protective resistors are included in the input leads so that current does not become excessive when the inputs are forced below the negative supply. The LT1638/LT1639 can drive loads up to 25mA and still maintain rail-to-rail capability. The op amps are unity-gain stable and drive all capacitive loads up to 1000pF when optional output compensation is used.

Features

Applications

• Exponential operation circuits
• Multiplication circuits
• Division circuits
• Precision measurement
• Power control
• Information processing
• Weak signal detection
• Signal amplification
• Signal filtering
• Signal operation