LTC6084/LTC6085
Dual/Quad 1.5MHz,
Rail-to-Rail, CMOS
Amplifiers
FEATURES
DESCRIPTION
TheLTC®6084/LTC6085aredual/quad,lowcost,lowoffset,
rail-to-railinput/output,unity-gainstableCMOSoperational
amplifiers that feature 1pA of input bias current.
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Low Offset Voltage: 750μV Maximum
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Low Offset Drift: 5μV/°C Maximum
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Low Input Bias Current:
1pA (Typical at 25°C)
40pA (≤85°C)
A 1.5MHz gain bandwidth, and 0.5V/μs slew rate, along
with the wide supply range and a low 0.75mV offset, make
the LTC6084/LTC6085 useful in an extensive variety of ap-
plications from data acquisition to medical equipment and
consumer electronics. The 110μA supply current and the
shutdownmodeareidealforsignalprocessingapplications
which demand performance with minimal power.
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Rail-to-Rail Inputs and Outputs
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2.5V to 5.5V Operation Voltage
Gain Bandwidth Product: 1.5MHz
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CMRR: 70dB Minimum
PSRR: 94dB Minimum
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Supply Current: 110ꢀA per Amplifier
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TheLTC6084/LTC6085haveanoutputstagewhichswings
within5mVofeithersupplyrailtomaximizesignaldynamic
range in low supply applications. The input common
mode range includes the entire supply voltage. These op
amps are specified on power supply voltages of 2.5V and
5V from –40°C to 125°C. The dual amplifier LTC6084 is
available in 8-lead MSOP and 10-lead DFN packages. The
quad amplifier LTC6085 is available in 16-lead SSOP and
DFN packages.
Shutdown Current: 1.1ꢀA per Amplifier
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Available in 8-Lead MSOP and 10-Lead DFN
Packages (LTC6084) and 16-Lead SSOP and DFN
Packages (LTC6085)
APPLICATIONS
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Portable Test Equipment
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Medical Equipment
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L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Consumer Electronics
Data Acquisition
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TYPICAL APPLICATION
Shock Sensor Amplifier
Input Bias Current
vs Common Mode Voltage
200k
10000
V
= 5V
S
20M
470pF
3V
20M
1000
100
10
T
T
= 125°C
A
A
–
= 85°C
= 25°C
1/2
2k
*
LTC6084
100k
V
= 120mV/g
OUT
3V
T
+
A
1
100k
0.22ꢀF
0.1
0.01
60845 TA01
7Hz TO 5kHz
*SHOCK SENSOR MURATA ERIE PKGS-OOMX1
www.murata.com
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
COMMON MODE VOLTAGE (V)
60845 TA01b
60845fa
1