LTC6081/LTC6082
1
60812f
, LTC, LT and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Precision Dual/Quad
CMOS Rail-to-Rail Input/
Output Amplifi ers
The LTC
®
6081/LTC6082 are dual/quad low offset, low drift,
low noise CMOS operational amplifi ers 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 amplifi er consumes only 330µA of current on a 3V
supply. The 10-lead DFN has an independent shutdown
function that reduces each amplifi er’s supply current
to 1µA.
LTC6081/LTC6082 is specifi ed 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.
Shock Sensor Amplifi er (Accelerometer)
■
Maximum Offset Voltage: 70μV (25°C)
■
Maximum Offset Drift: 0.8μV/°C
■
Maximum Input Bias: 1pA (25°C) 40pA (T
A
≤ 85°C)
■
Open Loop Voltage Gain: 120dB Typ
■
Gain Bandwidth Product: 3.6MHz
■
CMRR: 100dB Min
■
PSRR: 98dB Min
■
0.1Hz to 10Hz Noise: 1.3µV
P-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
■
Photodiode Amplifi er
■
Strain Gauge
■
High Impedance Sensor Amplifi er
■
Microvolt Accuracy Threshold Detection
■
Instrumentation Amplifi ers
■
Thermocouple Amplifi ers
60812 TA01
V
+
V
–
–
+
1G
2M
1M
10k
3.9pF
47pF
0.1μF
1/2
LTC6081
0.1μF
8.2pF
2M
3.9pF
1M
V
OUT
= 109mV/g
BW ~ 2.2kHz
MURATA
PKGS-00LD
770pF
0° SENSOR
V
OS
Drift Histogram
V
OSDRIFT
(μV/°C)
NUMBER OF AMPLIFIERS (OUT OF 100)
30
25
20
15
10
5
0
60812 TA01b
LTC6081MS8
T
A
= –40°C TO 125°C
V
S
= 3V
V
CM
= 0.5V
0.20 0.30–0.10–0.20 0 0.10
