peculiarity
(Typical, T A = 25 ° C, V S = 5 V)
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, A V = 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 mA
|
Input bias current
|
± 25 PA |
GBW |
5 MHz
|
Swing 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 is an ultra-low input offset voltage with near-zero input offset voltage, offset voltage drift, very low input voltage noise, and very high open-loop gain op-amps with single precision and dual inputs. They are part of the LMP high-precision family and are the ideal instrument and sensor interface.
The LMP2021/LMP2022 has only a 0.004μV/°C offset voltage drift input and a 0.4μV input offset voltage. These properties provide high precision for applications that are very accurate.
The proprietary continuous correction circuitry guarantees impressive CMRR and PSRR, eliminating the 1/f noise component and eliminating the need for many circuit calibrations.
With only 260 NV PP (0.1 Hz to 10 Hz) of input voltage noise and a 1/f noise component, LMP2021/LMP2022 is ideal for applications such as industrial precision low-frequency scales. The low input bias of 23 pA current makes high sources such as non-invasive medical instruments and test and measurement equipment impedance circuits an excellent choice. The extremely high 160 dB open-loop gain greatly reduces gain and high gain application errors. With ultra-precise DC specifications and very low noise, LMP2021/LMP2022 is ideal for high-precision applications such as position sensors, bridge sensors, pressure sensors, medical devices, and very low error budgets.
LMP2021 is available in 5-pin SOT-23 and 8-pin SOIC packages. LMP2022 is available in 8-pin MSOP and 8-pin SOIC packages.
apply
- Precision instrumentation amplifiers
- Battery-powered instrument
- Thermocouple amplifier
- bridge amplifier
|