Precision Dual CMOS Rail-to-Rail Input/Output Amplifiers

The LTC6081/LTC6082 are dual/quad low offset, low drift, low noise CMOS operational amplifiers with rail-to-rail input/output swing.

The 70μV maximum offset, 1pA input bias current, 120dB open loop gain and 1.3μVP-P 0.1Hz to 10Hz noise make it perfect for precision signal conditioning. The LTC6081/ LTC6082 features 100dB CMRR and 98dB PSRR.

Each amplifier consumes only 330μA of current on a 3V supply. The 10-lead DFN has an independent shutdown function that reduces each amplifier’s supply current to 1μA.

LTC6081/LTC6082 is specified for power supply voltages of 3V and 5V from –40°C to 125°C. The dual LTC6081 is available in 8-lead MSOP and 10-lead DFN10 packages. The quad LTC6082 is available in 16-lead SSOP and DFN packages.

Applications

* Photodiode Amplifier

* Strain Gauge

* High Impedance Sensor Amplifier

* Microvolt Accuracy Threshold Detection

* Instrumentation Amplifiers

* Thermocouple Amplifiers

* Maximum Offset Voltage: 70μV (25°C)

* Maximum Offset Drift: 0.8μV/°C

* Maximum Input Bias: 1pA (25°C) 40pA (TA ≤ 85°C)

* Open Loop Voltage Gain: 120dB Typ

* Gain Bandwidth Product: 3.6MHz

* CMRR: 100dB Min

* PSRR: 98dB Min

* 0.1Hz to 10Hz Noise: 1.3μVP-P

* Supply Current: 330μA

* Rail-to-Rail Inputs and Outputs

* Unity Gain Stable

* 2.7V to 5.5V Operation Voltage

* Dual LTC6081 in 8-Lead MSOP and 10-Lead DFN10

* Packages; Quad LTC6082 in 16-Lead SSOP and DFN Packages