PGA900
- High accuracy, low noise, low power, small size resistive sensing signal conditioner
- User-programmable temperature and nonlinearity compensation
- On-chip ARM® Cortex® M0 microprocessor allows users to develop and implement calibration software
- One-wire interface enables the communication through power supply pin without using additional lines
- On-chip power management accepts wide power supply voltage from 3.3 V to 30 V
- Operating temperature range: –40°C to +150°C
- Memory:
- 8-kB software memory
- 128 bytes EEPROM
- 1-kB data SRAM
- Accommodates sensor sensitivities from 1 mV/V to 135 mV/V
- Two individual analog-front end (AFE) chains, each
including:
- Low-noise programmable gain amplifier
- 24-bit sigma-delta analog-to-digital converter
- Built-in internal temperature sensor with option to use external temperature sensor
- 14-bit DAC with programmable gain amplifier
- Output options:
- Ratiometric and absolute voltage output
- 4- to 20-mA current loop interface
- One-wire interface (OWI) over power line
- PWM output
- Serial peripheral interface (SPI)
- Inter-integrated circuit (I2C)
- Depletion MOSFET gate driver
- Diagnostic functions
The PGA900 is a signal conditioner for resistive sensing applications. It can accommodate various sensing element types. The PGA900 conditions its input signals by amplification and digitization through two analog front end channels. With the user programmed software in the on-chip ARM Cortex M0 processor, the PGA900 can perform linearization, temperature compensation, and other user defined compensation algorithms. The conditioned signal can be output as ratiometric voltage, absolute voltage, 4- to 20-mA current loop or PWM. The data and configuration registers can also be accessed through SPI, I2C, UART, and two GPIO ports. In addition, the unique OWI allows communication and configuration through the power supply pin without using additional lines. The PGA900 operating voltage is from 3.3 V to 30 V and it can operate in temperatures from –40°C to +150°C.
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CCSTUDIO — Code Composer Studio integrated development environment (IDE)
CCStudio™ IDE is part of TI's extensive CCStudio™ development ecosystem and is an integrated development environment for TI's microcontrollers, processors, wireless connectivity devices, and radar sensors. CCStudio IDE is available as desktop or cloud-based applications. The cloud version (...)
SLDC010 — PGA900 Generic Firmware
TIDA-00851 — 단일 칩, 루프 전원 공급 4~20mA RTD 센서 트랜스미터 레퍼런스 디자인
TIDA-00851 레퍼런스 설계는 4회선 RTD 아날로그 프론트 엔드를 포함한 2회선, 4~20mA 루프 전원 공급 시스템을 위한 단일 칩 솔루션입니다. 내장된 프로세서를 사용하면 보상 알고리즘을 사용하여 시스템 성능을 향상시킬 수 있습니다. 이 설계는 공간 제약적인 애플리케이션에 매우 적합하며 저전력 성능으로 높은 주변 온도에서 작동합니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RHH) | 36 | Ultra Librarian |
| DSBGA (YZS) | 36 | Ultra Librarian |
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