INA114

® INA 114 INA114 INA 114 Precision INSTRUMENTATION AMPLIFIER FEATURES q LOW OFFSET VOLTAGE: 50µV max q LOW DRIFT: 0.25µV/°C max q LOW INPUT BIAS CURRENT: 2nA max q HIGH COMMON-MODE REJECTION: 115dB min q INPUT OVER-VOLTAGE PROTECTION: ±40V q WIDE SUPPLY RANGE: ±2.25 to ±18V q LOW QUIESCENT CURRENT: 3mA max q 8-PIN PLASTIC AND SOL-16 DESCRIPTION The INA114 is a low cost, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications. A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage. The INA114 is laser trimmed for very low offset voltage (50µV), drift (0.25µV/°C) and high common-mode rejection (115dB at G = 1000). It operates with power supplies as low as ±2.25V, allowing use in battery operated and single 5V supply systems. Quiescent current is 3mA maximum. The INA114 is available in 8-pin plastic and SOL-16 surface-mount packages. Both are specified for the –40°C to +85°C temperature range. APPLICATIONS q BRIDGE AMPLIFIER q THERMOCOUPLE AMPLIFIER q RTD SENSOR AMPLIFIER q MEDICAL INSTRUMENTATION q DATA ACQUISITION V+ 7 (13) – VIN 2 (4) 1 (2) RG 8 (15) + VIN 3 (5) Over-Voltage Protection A2 25kΩ 25kΩ 25kΩ 5 (10) Ref Over-Voltage Protection INA114 Feedback A1 25kΩ 25kΩ A3 6 (11) 25kΩ (12) DIP Connected Internally VO G=1+ 50kΩ RG 4 (7) DIP V– International Airport Industrial Park Mailing Addres...