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LMP2022MA Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza LMP2022MA
Descripción Electrónicos  LMP2021/LMP2022 Zero Drift, Low Noise, EMI Hardened Amplifiers
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

LMP2022MA Datasheet(HTML) 1 Page - Texas Instruments

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LMP2021, LMP2022
www.ti.com
SNOSAY9E – SEPTEMBER 2008 – REVISED MARGH 2013
LMP2021/LMP2022 Zero Drift, Low Noise, EMI Hardened Amplifiers
Check for Samples: LMP2021, LMP2022
1
FEATURES
DESCRIPTION
The LMP2021/LMP2022 are single and dual precision
23
(Typical Values, TA = 25°C, VS = 5V)
operational amplifiers offering ultra low input offset
Input Offset Voltage (Typical)
−0.4 µV
voltage, near zero input offset voltage drift, very low
Input Offset Voltage (Max) ±5 µV
input voltage noise and very high open loop gain.
They are part of the LMP™ precision family and are
Input Offset Voltage Drift (Typical) -0.004 µV/°C
ideal for instrumentation and sensor interfaces.
Input Offset Voltage Drift (Max) ±0.02 µV/°C
The LMP2021/LMP2022 have only 0.004 µV/°C of
Input Voltage Noise, AV = 1000 11 nV/√Hz
input offset voltage drift, and 0.4 µV of input offset
Open Loop Gain 160 dB
voltage. These attributes provide great precision in
CMRR 139 dB
high accuracy applications.
PSRR 130 dB
The
proprietary
continuous
correction
circuitry
Supply Voltage Range 2.2V to 5.5V
ensures impressive CMRR and PSRR, removes the
1/f noise component, and eliminates the need for
Supply Current (per Amplifier) 1.1 mA
calibration in many circuits.
Input Bias Current ±25 pA
With only 260 nVPP (0.1 Hz to 10 Hz) of input voltage
GBW 5 MHz
noise
and
no
1/f
noise
component,
the
Slew Rate 2.6 V/µs
LMP2021/LMP2022 are suitable for low frequency
Operating Temperature Range
−40°C to 125°C
applications such as industrial precision weigh scales.
The low input bias current of 23 pA makes these
5-Pin SOT-23, 8-Pin VSSOP and 8-Pin SOIC
excellent choices for high source impedance circuits
Packages
such as non-invasive medical instrumentation as well
as test and measurement equipment. The extremely
APPLICATIONS
high open loop gain of 160 dB drastically reduces
Precision Instrumentation Amplifiers
gain error in high gain applications. With ultra
precision DC specifications and very low noise, the
Battery Powered Instrumentation
LMP2021/LMP2022 are ideal for position sensors,
Thermocouple Amplifiers
bridge sensors, pressure sensors, medical equipment
Bridge Amplifiers
and other high accuracy applications with very low
error budgets.
The LMP2021 is offered in 5-Pin SOT-23 and 8-Pin
SOIC packages. The LMP2022 is offered in 8-Pin
VSSOP and 8-Pin SOIC packages.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
LMP is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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