Features
|
Supply voltage
|
2.7V to 5.5V
|
Supply current per channel
|
Low power mode
|
2 µA
|
|
Full power mode
|
400 µA
|
|
Input common mode voltage range
|
−0.3V to 3.8V
|
|
CMRR
|
85 dB
|
|
Output voltage swing
|
Rail-to-Rail
|
|
Input offset voltage
|
1 mV
|
Bandwidth
|
Low power mode
|
27 kHz
|
|
Full power mode
|
8 MHz
|
|
Stable for AV
≥ +2 or AV
≤ −1
|
Description The LMV422 dual rail-to-rail output amplifier offers a power select pin (PS) that allows the user to select one of two power
modes depending on the level of performance desired. This is ideal for AC coupled circuits where the circuit needs to be kept
active to maintain a quiescent charge on the coupling capacitors with minimum power consumption.
For portable applications, the LMV422 operates in low power mode consuming only 2 μA of supply current per channel at a bandwidth
of 27 kHz. This allows the user to reduce the power consumption of an amplifier while maintaining an active circuit. For additional
bandwidth and output current drive the amplifier can be switched to full power mode with 8 MHz bandwidth while consuming only
400 μA per channel.
The LMV422 features a rail-to-rail output voltage swing in addition to an input common mode range that includes ground. The
LMV422 is designed for closed loop gains of plus two (or minus one) or greater. The LMV422 is offered in a 10-Pin MSOP miniature
package to ease the adoption in applications where board area is at a premium.
Applications
AC coupled circuits
Portable instrumentation
Smoke detectors
| 
