LMP90100
7-kanaliger Delta-Sigma-ADC, 24 Bit, 214,6 SPS, für Sensoren mit 2x IDACs
Eine neuere Version dieses Produkts ist verfügbar
Ähnliche Funktionalität wie verglichener Baustein
LMP90100
- 24-Bit, Low-Power Sigma-Delta ADC
- True Continuous Background Calibration at all
Gains - In-Place System Calibration Using Expected
Value Programming - Low-Noise Programmable Gain (1x to 128x)
- Continuous Background Open / Short and Out-of-
Range Sensor Diagnostics - 8 Output Data Rates (ODR) With Single-Cycle
Settling - 2 Matched Excitation Current Sources From 100
µA to 1000 µA (LMP90100/LMP90098) - 4-DIFF / 7-SE Inputs (LMP90100/LMP90099)
- 2-DIFF / 4-SE Inputs (LMP90098/LMP90097)
- 7 General-Purpose Input/Output Pins
- Chopper-Stabilized Buffer for Low Offset
- SPI 4/3-wire With CRC Data Link Error Detection
- 50-Hz to 60-Hz Line Rejection at ODR
≤13.42 SPS - Independent Gain and ODR Selection per
Channel - Supported by WEBENCHR Sensor AFE Designer
- Automatic Channel Sequencer
- Key Specifications
- ENOB/NFR Up to 21.5/19 Bits
- Offset Error (Typical) 8.4 nV
- Gain Error (Typical) 7 ppm
- Total Noise < 10 µV-rms
- Integral Nonlinearity (INL Maximum) ± 15 ppm
of FSR - Output Data Rates (ODR) 1.6775 - 214.65
SPS - Analog Voltage, VA 2.85 to 5.5 V
- Operating Temp Range –4°C to 125°C
- 28-Pin HTSSOP Exposed Pad
The LMP90xxx is a highly integrated, multichannel, low-power, 24-bit Sensor AFEs. The devices features a precision, 24-bit Sigma-Delta analog-to-digital converter (ADC) with a low-noise programmable gain amplifier and a fully differential high-impedance analog input multiplexer. A true continuous background calibration feature allows calibration at all gains and output data rates without interrupting the signal path. The background calibration feature essentially eliminates gain and offset errors across temperature and time, providing measurement accuracy without sacrificing speed and power consumption.
Another feature of the LMP90100/LMP90099/LMP90098/LMP90097 is continuous background sensor diagnostics, allowing the detection of open and short-circuit conditions and out-of-range signals, without requiring user intervention, resulting in enhanced system reliability.
Two sets of independent external reference voltage pins allow multiple ratiometric measurements. In addition, two matched programmable current sources are available in the LMP90100/LMP90098 to excite external sensors such as resistive temperature detectors and bridge sensors. Furthermore, seven GPIO pins are provided for interfacing to external LEDs and switches to simplify control across an isolation barrier.
Collectively, these features make the LMP90100/LMP90099/LMP90098/LMP90097 complete analog front-ends for low-power, precision sensor applications such as temperature, pressure, strain gauge, and industrial process control. The LMP90100/LMP90099/LMP90098/LMP90097 are ensured over the extended temperature range of 40°C to +125°C and are available in a 28-pin HTSSOP package with an exposed pad.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | LMP90100 and LMP9009x Sensor AFE System: Multichannel, Low-Power, 24-Bit Sensor AFE With True Continuous Background Calibration datasheet (Rev. S) | PDF | HTML | 26 Jan 2016 |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 Mär 2024 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mär 2023 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 19 Jun 2020 | ||
Application note | LMP90100 True Continuous Background Calibration (Rev. B) | 01 Mai 2013 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LMP9XXXXSENSORDEV-SW — LMP91000 Sensor AFE Software Download
Unterstützte Produkte und Hardware
Produkte
Signalumformer
Präzisions-ADCs
ANALOG-ENGINEER-CALC — Rechner für Analogtechniker
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
TINA-TI — SPICE-basiertes analoges Simulationsprogramm
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
HTSSOP (PWP) | 28 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.
Support und Schulungen
TI E2E™-Foren mit technischem Support von TI-Ingenieuren
Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.
Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support.