В® INA115 INA 115 Precision
INSTRUMENTATION AMPLIFIER
FEATURES DESCRIPTION в—Џ LOW OFFSET VOLTAGE: 50ВµV max The INA115 is a low cost, general purpose instrumentation amplifier offering excellent accuracy. Its versatile three-op amp design and small size make it ideal
for a wide range of applications. Similar to the model
INA114, the INA115 provides additional connections
to the input op amps, A1 and A2, which improve gain
accuracy in high gains and are useful in forming
switched-gain amplifiers. в—Џ LOW DRIFT: 0.25ВµV/В°C max
в—Џ LOW INPUT BIAS CURRENT: 2nA max
в—Џ HIGH COMMON-MODE REJECTION:
115dB min
в—Џ INPUT OVER-VOLTAGE PROTECTION:
В±40V
в—Џ WIDE SUPPLY RANGE: В±2.25 TO В±18V A single external resistor sets any gain from 1 to
10,000. Internal input protection can withstand up to
В±40V without damage. в—Џ LOW QUIESCENT CURRENT: 3mA max
в—Џ SOL-16 SURFACE-MOUNT PACKAGE The INA115 is laser trimmed for very low offset
voltage (50ВµV), drift (0.25ВµV/ЛљC) and high commonmode rejection (115dB at G=1000). It operates with
power supplies as low as В±2.25V, allowing use in
battery operated and single 5V supply systems. Quiescent current is 3mA maximum. APPLICATIONS
в—Џ SWITCHED-GAIN AMPLIFIER
в—Џ BRIDGE AMPLIFIER
в—Џ THERMOCOUPLE AMPLIFIER …
