I2C, SPI Pressure Sensor and Transducer

2022-07-07

I2C, SPI Pressure Sensor Introduction:

I2C, SPI pressure sensor and transducer is based on piezoresistive silicon pressure sensors packaged in a 316L stainless steel housing. The pressure sensor supports I2C and SPI interface protocols, may come in a 3.3 or 5.0Vdc supply voltage.

I2C, SPI Pressure Sensor and Transducer

The sensing package utilizes silicon oil to transfer pressure from the 316L diaphragm to the sensing element. I2C SPI pressure sensor is designed for o-ring mounting. The pressure transducer is suitable for applications where compatibility with corrosive media is required.

A custom ASIC is used for temperature compensation, offset correction, and provides a digital output of 10~90% or 5~95%. The circuit exceeds the latest heavy industrial CE requirements.

I2C, SPI Pressure Sensor and Transducer

Features:	Applications:
* Low cost OEM * Pressure range:0-10Kpa…35Mpa * ±0.5% Total Error Band * Compatible with corrosive media * Standard mounting size * I2C or SPI Interface protocols	* Process control * Fresh and waste water measurements * Medical instruments * Pressure transmitters

I2C, SPI Pressure Transducer Dimensions:

I2C, SPI Pressure Sensor and Transducer

I2C, SPI Pressure Transducer Video:

Technical Parameter:

Supply Voltage: 3.3Vdc		Ambient Temperature: 25°C (unless otherwise specified)
Parameters		Min.	Typical	Max.	Notes
Interface Type		I²C（ADDR，0X28H）			SPI (optional)
Accuracy(%FS)		-0.1	±0.05	0.1	combined linearity, hysteresis and repeatability.
Total Error Band（%FS）	≤100Kpa	-1	±0.5	1	includes calibration errors and temperature effects over the compensated range.
	>100Kpa	-0.5	±0.3	0.5
Output Type		10% — 90% （A type)			5%-95%(B type) Optional
Zero Pressure Output			666		Count Hex
Full Scale Pressure Output(FS)			399A
Resolution–Pressure(%FS)		0.008			14bits
Temp. Accuracy(℃)		-2		2	over the compensated temperature range
Resolution–Temp.(℃)			0.1		8~11bits
Operating Temp.(℃)		-40		125
Compensated Temp.(℃)	﹤40Kpa	0		50
	≧40Kpa	-10		70
Input Voltage(V)		2.7	3.3	5.5
Current consumption	Non-Sleep		2.7mA		default (See Note1)
	Sleep mode		2µA		optional
Load Resistance（KΩ）		10
Insulation Resistance(MΩ/50V)		50
Response Frequency（HZ)			2K
Pressure Range		0-10Kpa…35Mpa			See ordering information
Overpressure	7Mpa	1.5X
	Others except 7Mpa	2X
Media–Pressure		Liquids and gases compatible with 316L Stainless Steel
Note1: Reduce response frequency can reduce the current consumption accordingly,Pls. contact factory if you want this option.

CE Compliance:
EN55022 Emissions Class A&B
IEC61000-4-2(ESD): 8KV(air)/6KV(contact)
IEC61000-4-3 Radiated, Radio-Frequency Electromagnetic Field Immunity (3V/m, 80MHZ~1GHZ)
IEC61000-4-4 Electrial Fast Transient Immunity (1KV)
IEC61000-4-6 Immunity to Conducted Disturbances Induced by Radio Frequency Fields(150KHZ~80MHZ 3V Level)
IEC61000-4-9 Pulse Magnetic Field Immunity (100A/m Peak)

Ordering Information:

Ordering Information
Model	Description
ACD11	Diameter 19mm O Ring mounting
	Code	Pressure Range			Gauge	Absolute
	10K	0-10Kpa			*
	40K	0-40Kpa			*
	100K	0-100Kpa			*	*
	160K	0-160Kpa			*	*
	400K	0-400Kpa			*	*
	600K	0-600Kpa			*	*
	1M	0-1Mpa			*	*
	1.6M	0-1.6Mpa			*	*
	2.5M	0-2.5Mpa			*	*
	4M	0-4Mpa			*	*
	7M	0-7Mpa			*	*
	10M	0-10Mpa			*(Sealed Gauge）
	20M	0-20Mpa			*(Sealed Gauge）
	35M	0-35Mpa			*(Sealed Gauge）
	XX	Special
		Code	Pressure Reference
		A	Absolute Pressure
		G	Vent Gauge Pressure(W/O vent tube as default）
		S	Sealed Gage
			Code	Electrical
			1	Connect Pins
			2	Ribbon Cable(90mm as default)
Example：
ACD11	600K	G	2	Model：ACD11-600K-G2
19mm Sensor	0-600Kpa	Vent Gauge	Ribbon Cable

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