LMP91200
- Active Guarding
- Key Specifications
Unless otherwise noted, typical values at
TA = 25°C, VS = (VDD-GND) = 3.3 V - pH Buffer Input Bias Current (0 < VINP < 3.3 V)
- Maximum at 25°C: ±125 fA
- Maximum at 85°C: ±445 fA
- pH Buffer Input Bias Current
(–500 mV < VINP– VCM < 500 mV),
VS = (VDD – GND) = 0 V- Maximum at 25°C: ±600 fA
- Maximum at 85°C: ±6.5 pA
- pH Buffer Input Offset Voltage: ±200 µV
- pH Buffer Input Offset Voltage Drift: ±2.5 µV/°C
- Supply Current: 50 µA
- Supply Voltage: 1.8 V to 5.5 V
- Operating Temperature Range: –40°C to 125°C
- Package: 16-Pin TSSOP
The LMP91200 device is a sensor AFE for use in low-power, analytical-sensing applications. The LMP91200 is designed for 2-electrode sensors. This device provides all of the functionality needed to detect changes based on a delta voltage at the sensor. Optimized for low-power applications, the LMP91200 works over a voltage range of 1.8 V to 5.5 V. With its extremely low input bias current it is optimized for use with pH sensors. Also, in absence of supply voltage the very low input bias current reduces degradation of the pH probe when connected to the LMP91200. Two guard pins provide support for high parasitic impedance wiring. Depending on the configuration, total current consumption for the device is 50 µA while measuring pH. Available in a 16-pin TSSOP package, the LMP91200 operates from –40°C to +125°C.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LMP91200 Configurable AFE for Low Power Chemical Sensing Apps datasheet (Rev. E) | 2016/02/29 | |
Technical article | What can we learn for IIoT from the man who invented the Web? | PDF | HTML | 2016/01/12 | |
Application note | AN-2254 MSP430 Interface to LMP91200 Code Library (Rev. A) | 2013/05/01 | ||
More literature | Sensor Analog Front Ends Brochure | 2012/10/30 | ||
EVM User's guide | LMP91200 Sensor AFE Evaluation Board User's Guide (Rev. A) | 2012/05/30 | ||
EVM User's guide | LMP91200 Sensor AFE Evaluation Board User's Guide | 2012/05/07 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TIDA-00561 — 무선 pH 센서 트랜스미터(센서 태그용 DevPack) 레퍼런스 디자인
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
TSSOP (PW) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.