• Product Introduction

LT1179SW

Maximum, dual and quad, single supply, precision op amp

peculiarity 17μA maximum supply current per amplifier 70μV maximum offset voltage 250pA maximum bias current 5nA maximum input bias current 0.9μVp-P 0.1Hz to 10Hz voltage noise 1.5pAp - P 0.1Hz to 10Hz current noise Offset voltage drift of 0.5μV/°C 85kHz gain bandwidth products 0.04V/μs slew rate Single-power operation The input voltage range includes ground potential output swing while absorbing current to ground There is no pull-down resistance Output source and sink 5 mA load current description ™The LT 1178 is a micro-power dual op-amp in a standard 8-pin configuration The LT1179 is a micro-quad op-amp available in a standard 14-pin package. Both devices are optimized for 5V single-supply operation. The specifications are also available with ± 15V power supply. The extremely low supply current is combined with true precision specifications: offset voltage of 30μV, offset currentis 50pA. These two offset parameters drift with low temperature. 1.5pAp - P-current noise and picoampere cancellation currently allow the use of megaohm-level source resistors without causing serious errors. Voltage noise, 0.9μVp-P, is very low supply current. The LT1178 and LT1179 can be operated from a single power supply (one lithium battery or two nickel-cadmium batteries low). The input range is below ground. All NPN output stages fluctuate within a few millivolts of ground and a sinking currentno power pull-down resistor is necessary. Three times higher supply current is acceptable, single micro LT1077, LT1078 dual and LT1079 four recommendations. The LT1077/78/79 has significantly higher bandwidth, slew rate, low voltage noise, and better output drive capability.