LTC6081_15 Datasheet, PDF (1/20 Pages) Linear Technology – Precision Dual/Quad CMOS Rail-to-Rail Input/ Output Amplifiers

Features
■ _{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
Applications
■ _{Photodiode Amplifier}
■ _{Strain Gauge}
■ _{High Impedance Sensor Amplifier}
■ _{Microvolt Accuracy Threshold Detection}
■ _{Instrumentation Amplifiers}
■ _{Thermocouple Amplifiers}
LTC6081/LTC6082
Precision Dual/Quad
CMOS Rail-to-Rail Input/
Output Amplifiers
Description
The LTC^®6081/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 1.3µV_P-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.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical Application
Shock Sensor Amplifier (Accelerometer)
V_OS Drift Histogram
MURATA
PKGS-00LD
770pF
0° SENSOR
8.2pF
2M
1G
3.9pF
2M
3.9pF
1M
V⁺ _0.1µF
+
1/2
LTC6081
–
V^{– 0.1µF}
1M
V_OUT = 109mV/g
BW ~ 2.2kHz
10k
47pF
60812 TA01
30
LTC6081MS8
T_A = –40°C TO 125°C
25 V_S = 3V
V_CM = 0.5V
20
15
10
5
0
–0.20
–0.10 0
0.10
V_OSDRIFT (µV/°C)
0.20 0.30
60812 TA01b
60812fd
For more information www.linear.com/LTC6081
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