peculiarity
(Typical, T.)A= 25 ° C，VS= 5V）
|
Input offset voltage (typical)
|
-0.4μV
|
|
Input offset voltage (max)
|
± 5μV
|
|
Input offset voltage drift (typical)
|
-0.004μV/ ° C
|
|
Input offset voltage drift (max.)
|
± 0.02μV/ ° C
|
|
Input voltage noise，AV = 1000
|
11 NV / √ hertz
|
|
Open-loop gain
|
160 dB
|
|
CMRR
|
139 dB
|
|
PSRR
|
130 dB
|
|
Supply voltage range
|
2.2V to 5.5V
|
|
Supply current (per amplifier)
|
1.1 mAh
|
|
Input bias current
|
± 25 PA
|
|
GBW
|
5 MHz
|
|
Slew rate
|
2.6 V/μs
|
|
Operating temperature range
|
-40°C to 125°C
|
|
5-Pin SOT - 23-, 8-pin MSOP and 8-pin SOIC packages
|
illustrate
The LMP2021/LMP2022 are single-precision and dual-input ultra-low input offset voltages, offset voltage drift, very low input voltage noise, and very high open-loop gain op amps. They are part of the LMP family of high precision and are ideal for instrument and sensor interfaces.
The LMP2021/LMP2022 has only an offset voltage drift input of 0.004μV/°C and an input offset voltage of 0.4μV. These properties provide high precision for very precise applications.
Proprietary continuous correction circuitry guarantees impressive CMRR and PSRR, eliminates 1/f noise components, and eliminates the need for many circuit calibrations.
Since there are only 260 NVPP（0.1Hertz to 10 Hz) input voltage noise and 1/f noise components, LMP2021/LMP2022 scales for low frequency applications such as industrial precision. The low input bias of 23 pA makes high sources such as non-invasive medical instruments and test and measurement equipment impedance circuits an excellent choice. At an extremely high 160 dB, open-loop gain greatly reduces gain and high gain application errors. With ultra-precision DC specifications and very low noise, the LMP2021/LMP2022 is ideal for high precision applications such as position sensors, bridge sensors, pressure sensors, medical equipment, and very low error budgets.
The LMP2021 is available in 5-pin SOT - 23- and 8-pin SOIC packages. The LMP2022 is available in 8-pin MSOP and 8-pin SOIC packages.
apply
- Precision instrumentation amplifiers
- Battery-powered instrument
- Thermocouple amplifiers
- Bridge amplifier
|