link to page 3 link to page 16 link to page 16 link to page 16 link to page 16 link to page 16 LT1997-1 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 6: This parameter is not 100% tested. may cause permanent damage to the device. Exposure to any Absolute Note 7: The input voltage range is guaranteed by the ±15V CMRR tests. Maximum Rating condition for extended periods may affect device The Input Voltage Range numbers specified in the table guarantee that the reliability and lifetime. internal op amp operates in its normal operating region. The Input voltage Note 2: See Common Mode Voltage Range in the Applications Information range can be higher if the internal op amp operates in its Over-The-Top® section of this data sheet for other considerations when taking +INA/ operating region. See Common Mode Voltage Range in the Applications –INA/+INB/–INB/+INC/–INC pins to V– + 80V. Information section to determine the valid input voltage range under Note 3: A heat sink may be required to keep the junction temperature various operating conditions. below absolute maximum. This depends on the power supply, input Note 8: Input impedance is tested by a combination of direct voltages and the output current. measurements and correlation to the CMRR and gain error tests. Note 4: The LT1997I-1 is guaranteed functional over the operating Note 9: Offset voltage, offset voltage drift and PSRR are defined as temperature range of –40°C to 85°C. The LT1997H-1 is guaranteed referred to the internal op amp. The following shows the calculation of functional over the operating temperature range of –40°C to 125°C. output offset: In the case of balanced source resistance, VOS,OUT = (VOS Note 5: The LT1997I-1 is guaranteed to meet specified performance • NOISEGAIN) + (IOS • 150k) + (IB • 150k • (1– RP/RN)) where RP and from –40°C to 85°C. The LT1997H-1 is guaranteed to meet specified RN are the total resistance at the op amp positive and negative terminal, performance from –40°C to 125°C. respectively. Rev 0 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts
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