• Product Introduction

LT1079ISW 

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

peculiarity

• Available in an 8-pin SO package
• 50μA maximum supply current per amplifier
• 70μV maximum offset voltage
• 180μA maximum offset, using an 8-pin voltage, thus
• 250pA maximum bias current
• 0.6μVPP, 0.1Hz to 10Hz voltage noise
• 3pA polypropylene, 0.1Hz to 10Hz current noise
• Offset voltage drift of 0.4μV/°C
• 200kHz gain bandwidth products
• 0.07V/μs slew rate
• Single-power operation
  The input voltage range includes ground potential
  output swing while absorbing current to ground
  There is no pull-up
• Output source and sink 5 mA load current

® The LT 1078 is a micro-power dual-carrier amplifier in an 8-pin package, including a small form factor surface-mount package. The LT1079 is a micro-quad op-amp available in a standard 14-pin package. Both devices are optimized for 5V single-supply operation. ± 15V specification is also available.

The performance of a micro-similar device is achieved at the cost of seriously degrading accuracy, noise, speed and output driver specifications. The LT1078/LT1079 are designed to focus on reducing supply current without sacrificing other parameters. The offset voltage reaches the lowest level of stable op-amp micro or any other double or quadruple nonchopper. The bias current, voltage and current noise, slew rate, and gain bandwidth product are twenty times better than previous micropower op amps.

At 1/f angle of the voltage-noise spectrum at 0.7Hz, it is at least three times lower than any monolithic op-amp. Devices with higher amplitude of the supply current order can only find this result in noise performance at low frequencies (0.1Hz to 10Hz).

The LT1078 and LT1079 can be operated from a single power supply (one lithium battery or nickel-cadmium battery low). The input range is below ground. The fluctuation of a few millivolts on the ground in the full NPN output stage, while absorbing the current has no power to pull down the resistor's consumption needs.