The LTC881x family of single-, dual-, and quad- channel amplifiers features a maximized ratio of gain bandwidth (GBW) to supply current and is ideal for battery-powered applications such as portable instrumentations, portable medical equipments, wearable fitness devices, and wireless remote sensors. Featuring rail-to-rail input and output swings, 15-kHz bandwidth of combined with ultra-low supply current (typical 600 nA at 5.0 V per amplifier) and low noise (6.3 μVP-P at 0.1 to 10 Hz) , the LTC881x family is an excellent choice for precision, cost-optimized, “Always ON” sensing applications. The robust design of the LTC881x amplifiers provides ease-of-use to the circuit designer: integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electro-static discharge (ESD) protection (5-kV HBM). The LTC881x amplifiers are optimized for operation at voltages as low as +1.7 V (±0.85 V) and up to +5.5 V (±2.75 V) over the extended temperature range of −40 ℃ to +85 ℃. The LTC8811/3 (single) is available in both SOT23-5L and SC70-5L packages. The LTC8812 (dual) is offered in DFN-8L, SOIC-8L and MSOP-8L packages. The quad-channel LTC8814 is offered in QFN-16L, SOIC-14L and TSSOP-14L packages

• Ultra-Low Power Preserves Battery Life

          – 600 nA Supply Current (Typically at 5 V) Per Amplifier

• Single 1.7 V to 5.5 V Supply Voltage Range  

          –  Can be Powered From the Same 1.8V/2.5V/3.3V/5V System Rails

• 15 kHz GBW
• Precision Specifications for Buffer/Filter/Gain Stages

          – Low Input Offset Voltage: 0.6 mV
          – Low Noise: 6.3 μVP-P at 0.1 to 10 Hz
          – 1 pA Input Bias Current
          – Rail-to-Rail Input and Output

• Extended Temperature Range: −40℃ to +85℃

Battery-Powered Instruments:
– Consumer, Industrial, Medical, Notebooks
Wearable Fitness Devices
Sensor Signal Conditioning:
– Sensor Interfaces, Loop-Powered, Active Filters
Wireless Sensors:
– Home Security, Remote Sensing, Wireless Metering