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LT1178S8 Datasheet(PDF) 1 Page - Linear Technology |
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LT1178S8 Datasheet(HTML) 1 Page - Linear Technology |
1 / 2 page 1 LT1178S8 20 µA Max, Dual SO-8 Package, Single Supply Precision Op Amp DESCRIPTIO S FEATURE The LT1178S8 is a micropower dual op amp in the surface mount 8-pin package. It is optimized for single supply operation at 5V. Specifications are also provided at ±15V supplies. The extremely low supply current is combined with true precision specifications: offset voltage is 60 µV, offset current is 50pA. Both offset parameters have low drift with temperature. The 1.5pAP-P current noise and picoampere offset current permit the use of megohm level source resistors without introducing serious errors. Voltage noise at 0.9 µVP-P is remarkably low considering the low supply current. The LT1178S8 can be operated from a single supply as low as one lithium cell or two Ni-Cad batteries. The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current –– no power consuming pull-down resistors are needed. For applications where three times higher supply current is acceptable, the micropower LT1077 single, LT1078 dual and LT1079 quad are recommended. The LT1077/ LT1078/LT1079 have significantly higher bandwidth, slew rate; lower voltage noise and better output drive capability. s 8-Pin SO Package s 20 µA Max Supply Current per Amplifier s 180 µV Max Offset Voltage s 350pA Max Offset Current s 0.9 µVP-P, 0.1Hz to 10Hz Voltage Noise s 1.5pAP-P, 0.1Hz to 10Hz Current Noise s 0.6 µV/°C Offset Voltage Drift s Single Supply Operation: – Input Voltage Range Includes Ground – Output Swings to Ground While Sinking Current – No Pull-Down Resistors Are Needed s Output Sources and Sinks 5mA Load Current Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. PART MARKING TOP VIEW S8 PACKAGE 8-LEAD PLASTIC SOIC 1 2 3 4 8 7 6 5 +IN A V– +IN B –IN B –IN A OUT A V+ OUT B TJMAX = 150°C, θJA = 200°C/ W LT1178S8 PACKAGE/ORDER I FOR ATIO Please note that the LT1178S8 surface mount pinout differs from that of the LT1178 standard plastic or ceramic dual-in-line packages. Consult factory for Industrial and Military grade parts. 1178 ORDER PART NUMBER SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage VS = 5V, 0V TA = 25°C 60 180 µV VS = 5V, 0V 0 °C ≤ TA ≤ 70°C 85 350 µV VS = ±15V TA = 25°C 120 350 µV VS = ±15V 0 °C ≤ TA ≤ 70°C 150 540 µV ∆VOS Input Offset Voltage Drift (Note 1) VS = 5V, 0V 0 °C ≤ TA ≤ 70°C 0.6 3.5 µV/°C ∆TVS = ±15V 0 °C ≤ TA ≤ 70°C 0.7 3.8 µV/°C For electrical specifications not listed below, refer to the standard LT1178C data sheet with the changes noted on this page. Note 1: Not 100% production tested. ELECTRICAL C C HARA TERISTICS |
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