Data Sheet

INA193 , INA194 , INA195
INA196 , INA197 , INA198
www.ti.com SBOS307G –MAY 2004–REVISED JANUARY 2015
Device Functional Modes (continued)
8.4.4 Transient Protection
The −16-V to +80-V common-mode range of the INA193-INA198 devices is ideal for withstanding automotive
fault conditions ranging from 12-V battery reversal up to 80-V transients, since no additional protective
components are needed up to those levels. In the event that the INA193-INA198 devices are exposed to
transients on the inputs in excess of its ratings, then external transient absorption with semiconductor transient
absorbers (zeners 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 will
never allow the INA193-INA198 devices to be exposed to transients greater than +80 V (that is, allow for
transient absorber tolerance, as well as additional voltage due to transient absorber dynamic impedance).
Despite the use of internal zener-type ESD protection, the INA193-INA198 devices do not lend themselves to
using external resistors in series with the inputs because the internal gain resistors can vary up to ±30%. (If gain
accuracy is not important, then resistors can be added in series with the INA193-INA198 inputs with two equal
resistors on each input.)
8.4.5 Output Voltage Range
The output of the INA193-INA198 devices are accurate within the output voltage swing range set by the power-
supply pin, V+. This is best illustrated when using the INA195 or INA198 devices (which are both versions using
a gain of 100), where a 100-mV full-scale input from the shunt resistor requires an output voltage swing of +10 V,
and a power-supply voltage sufficient to achieve +10 V on the output.
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