ina128 Chinese data INA128 and INA129 are low-power, high-precision general-purpose instrumentation amplifiers. Their universal 3-op amp design and compact size make them suitable for a wide range of applications. The feedback current input circuit provides a wide bandwidth even under high gain conditions (200kHz when G = 100). A single external resistor can achieve any gain selection from 1 to 10000. INA128 provides an industrial standard gain equation. The gain equation of INA129 is compatible with AD620. INA128/INA129 is laser trimmed and fine-tuned with very low offset voltage (50mV), temperature drift of 0.5μV/°C and high common-mode rejection of 120dB at G=100. Its power supply voltage is as low as ±2.25V and the quiescent current is only 700uA, which is ideal for battery-powered systems. The internal input protection can withstand ±40V The INA128/INA129 are available in 8-pin plastic DIP and SO-8 surface mount packages. The specified temperature range is –40°C to +85°C. The INA128 also has a corresponding dual configuration, the INA2128
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