LMP2021
- Input Offset Voltage (Typical) −0.4 µV
- Input Offset Voltage (Max) ±5 µV
- Input Offset Voltage Drift (Typical) –0.004 µV/°C
- Input Offset Voltage Drift (Max) ±0.02 µV/°C
- Input Voltage Noise, AV = 1000 11 nV/√Hz
- Open Loop Gain 160 dB
- CMRR 139 dB
- PSRR 130 dB
- Supply Voltage Range 2.2 V to 5.5 V
- Supply Current (per Amplifier) 1.1 mA
- 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 VSSOP and 8-Pin SOIC Packages
(Typical Values, TA = 25°C, VS = 5 V)
The LMP2021 and LMP2022 are single and dual precision operational amplifiers offering ultra low input offset voltage, near zero input offset voltage drift, very low input voltage noise and very high open loop gain. They are part of the LMP precision family and are ideal for instrumentation and sensor interfaces.
The LMP202x has only 0.004 µV/°C of input offset voltage drift, and 0.4 µV of input offset voltage. These attributes provide great precision in high accuracy applications.
The proprietary continuous auto zero correction circuitry ensures impressive CMRR and PSRR, removes the 1/f noise component, and eliminates the need for calibration in many circuits.
With only 260 nVPP (0.1 Hz to 10 Hz) of input voltage noise and no 1/f noise component, the LMP202x are suitable for low frequency applications such as industrial precision weigh scales. The extremely high open loop gain of 160 dB drastically reduces gain error in high gain applications. With ultra precision DC specifications and very low noise, the LMP202x are ideal for position sensors, bridge sensors, pressure sensors, medical equipment 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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LMP202x Zero-Drift, Low-Noise, EMI-Hardened Amplifiers datasheet (Rev. G) | PDF | HTML | 2016. 2. 29 | |
| 기술 문서 | How to design an infrared thermometer quickly | PDF | HTML | 2020. 4. 7 | ||
| e북 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017. 3. 28 | ||
| 아날로그 디자인 학술지 | Industrial-strength design considerations to prevent thermal and EMI damage | 2014. 4. 11 | |||
| 사용 설명서 | LMP2021MAEVAL - Bridge Sensor Instrumentation Amp Evaluation Board User Guide (Rev. A) | 2013. 4. 22 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
AMP-PDK-EVM — 증폭기 성능 개발 키트 평가 모듈
증폭기 성능 개발 키트(PDK)는 일반적인 연산 증폭기(OP 앰프) 매개 변수를 테스트할 수 있는 평가 모듈(EVM) 키트입니다. 대부분의 연산 증폭기 및 콤퍼레이터와 호환됩니다. EVM 키트는 패키지 요구 사항에 맞는 여러 소켓형 부속 카드 옵션이 있는 메인 보드를 제공하여 엔지니어가 디바이스 성능을 신속하게 평가하고 확인할 수 있습니다.
AMP-PDK-EVM 키트는 다음을 포함해 가장 널리 사용되는 5개의 업계 표준 패키지를 지원합니다.
- D(SOIC-8 및 SOIC-14)
- PW(TSSOP-14)
- DGK(VSSOP-8)
- (...)
LMP2021MAEVAL — LMP2021MA 브리지 센서 계측 증폭기 평가 보드
The LMP2021MAEVAL Instrumentation Amplifier Evaluation Board is configured as a differential-in, differential-out amplifier using the LMP2021. Also included is a precision reference and buffer to drive a bridge sensor. The board is set up to be used with the ADC141S626 Evaluation Board (Part (...)
OPAMPS-SELGUIDE — 증폭기 제품 선택 가이드 소프트웨어
Selguide is a software tool designed to guide the user in selecting our Operational Amplifier, Buffer and Comparator products by enabling the user to enter in a few key parameters and have a list of devices meeting those parameters returned to them.
Included in the results is a summary table of key (...)
OPAMP-NOISECALC — Noise Calculator
This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
- A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.