INA146

Supply Voltage, V+ to V ................................................................... 36V
Signal Input Terminals, Voltage ..................................................... ±100V
                                     Current ...................................................... ±1mA
Output Short Circuit (to ground) ............................................. Continuous
Operating Temperature .................................................. 55 to +125
Storage Temperature ..................................................... 55 to +150
Junction Temperature .................................................................... +150
Lead Temperature (soldering, 10s) ............................................... +240

NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.

The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 well-suited for both single and dual supply applications.

On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors assures continued high precision over temperature.

A 10:1 difference amplifier provides 0.1V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100V can be measured. Gains greater than 0.1V/V can be set with an external resistor pair without affecting the common-mode input range.

The INA146 is available in the SO-8 surface-mount package specified for the extended industrial temperature range, 40 to +85.