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PS09
![blog-image](https://brilliantelectronics.com/storage/product/86b79b18f71658930246.jpg)
Product Enquiry
Product Features
The PSØ9 extends the PICOSTRAIN family as a very compact, space-saving solution. Typical of PICOSTRAIN, PSØ9 combines the highest resolution and accuracy at very low power consumption for the entire system. The integrated patented software calibration allows a fully automated correction of temperature errors in load cells. This raises production quality to a level at which the (digital-) load cell easily meets the requirements for specifications like OIML or NTEP. The PSØ9 is both a complete single-chip solution including everything, and a frontend chip with a lot of built-in-intelligence. Special features like the capacitive inputs for buttons or sliders that need only 1 μA operating current round out the functionality.
PSØ9 allows to build scales with up to 150,000 stable peak-peak divisions at 2 mV/V. On the other hand, sophisticated power management can reduce the total system current, e.g. 40 μA with 3 Hz and 14 bits at 2 mV/V.
Part Descriptions
Features
- RMS noise down to 9 nV at SINC5, 5 Hz
- Up to 150,000 peak-peak divisions at 2 mV/V
- Scalable update rate from < 1 Hz to 1000 Hz
- 24-bit internal microprocessor with 160 x 24-bit RAM
- 8 k x 8-bit OTP, 128 byte user EEPROM
- SPI, I²C, UART interfaces
- Interface to drive external LCD driver circuits
- 7 GPIOs pins, up to 24 inputs possible
- 4 capacitive inputs
- Analog switches integrated to drive Wheatstone bridges
- Embedded 18 bits temperature measurement
- Very low gain and offset drift
- Power supply voltage: 2.1 V to 3.6 V
- Dice (1.98 x 1.7 mm²) or QFN40 (6 x 6 mm²)
Applications
- Digital load cells
- Bathroom scales (solar and battery)
- Kitchen scales (solar and battery)
- Piezo-resistive sensors