Pressure Sensor Applications - TDC

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TDC Pressure Sensor Applications

1 KHZ Pressure Sensor

ACAM TDC® Applications

Task:

Sensor:	Fullbridge, 1000 Ohm SG
Sensitivity:	2 mV/V (1000 µ, K = 2)
Update rate:	1 kHz
Resolution:	Maximum possible
Current consumption	not critical
Supply voltage:	5 V; 3.3 V
Application:	High-speed pressure sensor

Settings:

Measurement range 2, One-sense mode, Cycle time 62.5 µs, AVRate 1, Rdson compensation.

Resolution:

13.8 ENOB or 600 nV rms noise at 5 V supply

Current consumption:

Current into strain gage and PS021 I/O section:	4.2 mA
Current into PS021 core:	0.5 mA
Oscillators:	0.18 mA
Comparator:	0.13 mA
Totel current:	5.65 mA

pressure sensor 1khz

Strain Gage TDC