LTC6081 Datasheet, PDF (1/20 Pages) Linear Technology – Precision Dual/Quad CMOS Rail-to-Rail Input/ Output Amplifi ers

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.
, LTC, LT and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Shock Sensor Amplifier (Accelerometer)
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
V_OS Drift Histogram
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
60812f
1