The INA146 is a precision difference amplifier thatcan be used to accurately attenuate high differentialvoltages and reject high common-mode voltages forcompatibility with common signal processing voltagelevels. High-voltage capability also affords inherentinput protection. The input common-mode range extendsbeyond both supply rails, making the INA146well-suited for both single and dual supply applications.On-chip precision resistors are laser-trimmed to achieveaccurate gain and high common-mode rejection. ExcellentTCR tracking of these resistors assures continuedhigh precision over temperature.A 10:1 difference amplifier provides 0.1V/V gainwhen the output amplifier is used as a unity-gainbuffer. In this configuration, input voltages up to±100V can be measured. Gains greater than 0.1V/Vcan be set with an external resistor pair without affectingthe common-mode input range.The INA146 is available in the SO-8 surface-mountpackage specified for the extended industrial temperaturerange, –40°C to +85°C.
猜您喜欢
评论