LMV881 Datasheet, PDF (1/19 Pages) Texas Instruments – 23 MHz Low Power CMOS EMI Hardened Operational Amplifier with 1.8V Logic Shutdown

LMV881
February 3, 2012
23 MHz Low Power CMOS EMI Hardened Operational
Amplifier with 1.8V Logic Shutdown
General Description
The LMV881 is a low power CMOS input operational amplifier
that provides low input bias currents, a rail to rail output with
high output drive capability and a wide temperature range of
−40°C to +125°C. Additionally, the LMV881 is EMI hardened
to minimize sensitivity to external interference.
The LMV881 has a maximum input offset voltage of 1 mV with
an input common-mode voltage range that includes ground.
Over an operating supply range from 2.7V to 5.5V, the
LMV881 provides a typical PSRR of 110dB and a CMRR of
110dB. This makes the LMV881 ideal for EMI sensitive ap-
plications as well as exceptional performance as a robust
general purpose part.
The unity gain stable LMV881 features 23 MHz of bandwidth
while consuming only 1.65 mA of current. This device also
maintains stability for capacitive loads as large as 200 pF.
LMV881 offers a shutdown pin that can be used to disable the
device and reduce the supply current to sub-nanoamp levels.
During shutdown, the output is hard-clamped to V- to provide
a known output state. The shutdown input thresholds are set
for 1.8V logic, regardless of the amplifiers supply voltage. This
eliminates the need for additional logic level shifting circuitry
or translators.
The LMV881 is offered in the space saving 6-Pin micro LLP
package and provides excellent performance and economy
in terms of power and space usage.
Features
Unless otherwise noted, typical values at T_A = 25°C,
V⁺ = 3.3V
■ ^{Supply voltage}
2.7V to 5.5V
■ ^{Supply current}
1.65 mA
■ ^{Shutdown current}
200 pA
■ ^{Input offset voltage}
1 mV max
■ ^{Input bias current}
0.1 pA
■ ^GBW
23 MHz
■ ^{EMIRR at 1.8 GHz}
105 dB
■ ^{Input noise voltage at 1 kHz}
9 nV/√Hz
■ ^{Slew rate}
12 V/µs
■ ^{Output voltage swing}
Rail-to-Rail
■ ^{Output current drive}
70 mA
■ ^{Operating ambient temperature range −40°C to 125°C}
■ ^{Space saving micro-LLP package 1.5 x 1.0 x 0.5 mm}
Applications
■ ^{Weight scale systems}
■ ^{Filters/buffers}
■ ^{Medical diagnosis equipment}
Typical Application
EMI Hardened Sensor Application
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