illustrate

The INA128 and INA129 are low-power, general-purpose instrumentation amplifiers with excellent accuracy. The versatile triple op amp design and small size make them ideal for a wide range of applications. The current feedback input circuit provides high bandwidth and even high gain (at G = 100 to 200kHz).

A single external resistor sets any gain from 1 to 10,000. The INA128 provides the INA129 gain formula for industry-standard gain equations that are compatible with the AD620.

The INA128/INA129 is very low trimmed laser offset voltage (50μV), drift (0.5μV/°C) and high common-mode rejection ratio (120dB underground ≥100). It operates with a low supply of 2.25V ± while quiescent current of only 700μA, making it ideal for battery-powered systems.

characteristic

• Low offset voltage: 50μV maximum
• Low drift: 0.5μV/°C maximum
• Low input bias current: 5nA max
• High CMR: 120dB min
• ± 40V input protection,
• Wide supply range: ± 2.25V to ± 18V
• Low quiescent current: 700μA
• 8-pin plastic DIP, SO-8 package
• apply
  • Bridge amplifier
  • Thermocouple amplifiers
  • RTD sensor amplifier
  • Medical devices
  • Data acquisition