ZHCS793C March 2012 – January 2021 INA282-Q1 , INA283-Q1 , INA284-Q1 , INA285-Q1 , INA286-Q1
PRODUCTION DATA
The –14-V to 80-V common-mode range of the INA28x-Q1 is ideal for withstanding automotive fault conditions that range from 12-V battery reversal up to 80-V transients; no additional protective components are needed up to those levels. In the event that the INA28x-Q1 is exposed to transients on the inputs in excess of its ratings, then external transient absorption with semiconductor transient absorbers (Zener or Transzorbs) will be necessary. Use of MOVs or VDRs is not recommended except when they are used in addition to a semiconductor transient absorber. Select the transient absorber such that it cannot allow the INA28x-Q1 to be exposed to transients greater than 80 V (that is, allow for transient absorber tolerance, as well as additional voltage as a result of transient absorber dynamic impedance). Despite the use of internal zener-type electrostatic discharge (ESD) protection, the INA28x-Q1 does not lend itself to using external resistors in series with the inputs without degrading gain accuracy.