DESCRIPTION
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 1.3μP-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.
FEATURES
Maximum Offset Voltage: 70μV (25°C
Maximum Offset Drift: 0.8μV/°C
Maximum Input Bias: 1pA (25°C) 40pA ≤ 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
APPLICATIONS
Photodiode Amplifier
Strain Gauge
High Impedance Sensor Amplifier
Microvolt Accuracy Threshold Detection
Instrumentation Amplifiers
Thermocouple Amplifiers
TYPICAL APPLICATION
Shock Sensor Amplifier (Accelerometer)
Single Supply Strain Gauge Amplifier
VOS Drift Histogram
Simplified Schematic of the Amplifier
