LT1112IS8#TRPBF

LT1112 is a dual low power precision, Picoamp input op-amp that achieves a new standard in combining low cost and outstanding precision specifications. The performance of the selected prime grades matches or exceeds competitive devices. In the design of the LT1112 however, particular emphasis has been placed on optimizing performance in the low cost plastic. It also provides a full set of matching specifications, facilitating their use in such matching dependent applications as two and three op-amp instrumentation amplifiers. Another set of specifications is furnished at ±1V supplies. This, combined with the low 320µA supply current per amplifier, allows the LT1112 to be powered by two nearly discharged AA cells. Application includes picoampere/microvolt instrumentation, two and three op-amp instrumentation amplifiers, thermocouple and bridge amplifiers, low frequency active filters, photo current amplifiers, battery-powered systems.

• 25µV typical input offset voltage (VS = ±15V, VCM = 0V, TA = 25°C)
• 0.030pA/√Hz typical input noise current density (fO = 10Hz, VS = ±15V, VCM = 0V, TA = 25°C)
• Typical input voltage range is ±14.3V (VS = ±15V, VCM = 0V, TA = 25°C)
• 136dB typical common mode rejection ratio (VCM = ±13.5V, VS = ±15V, VCM = 0V, TA = 25°C)
• 126dB typical power supply rejection ratio (VS = ±1.0V to ±20V, VS = ±15V, VCM = 0V, TA = 25°C)
• 0.30V/µs typical slew rate (VS = ±15V, VCM = 0V, TA = 25°C)
• 750KHz typical gain-bandwidth product (fO = 10KHz, VS = ±15V, VCM = 0V, TA = 25°C)
• 350µA typical supply current per amplifier (VS = ±15V, VCM = 0V, TA = 25°C)
• 150dB typical channel separation (fO = 10Hz, VS = ±15V, VCM = 0V, TA = 25°C)
• 8 lead plastic SO package, operating temperature range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party