NPA 201-EV

NPA 201-EV Datasheet


NPA 201-EV

Part Datasheet
NPA 201-EV NPA 201-EV NPA 201-EV (pdf)
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NPA 201-EV

One of the World’s Smallest I2C Pressure Sensor Evaluation Board x

The NPA 201-EV is a small and easy-to-use I2C Pressure Sensor evaluation board measuring 0.4”x0.29” and has standard 0.1in/2.54mm headers for easy use with a bread-board and is small enough to put right into an application. It is based on the Nova Sensor NPA 201 which comes in a 2.0x2.5x1.0 HCLGA style package. The NPA 201 can measure 260-1260 mBar absolute pressure range with 16bits of Resolution. Temperature measurement is also included. The NPA is operational from to 3.46V and can operate across a -40°C to +85°C temperature range. The NPA 201 offers an ULTRA-LOW power SLEEP mode of ~20nA Typical and ACTIVE current is 35uA Typical.

The NPA 201 utilizes a SIMPLE 3 Command I2C interface Command Request, Read Status, and Read Data . The NPA-201 is already calibrated, so there is no need for REGISTER INITIALIZATION needed. Upon Power Up the NPA 201 is ready to go as it is initialized internally.

The NPA 201-EV is compatible with the Embedded Masters Rapid Prototyping Wireless Sensor Kit, EMSENSR-WSP Wireless Sensor Plugin and EMRF-WSB Wireless Sensor Base . The EMSENSR-WSP provides a Sensor Plugin platform that all EMSENSR’s can be plugged into. The WSP can be directly connected to all of the Silicon Labs EFM32 Starter Kits on one side. The other side allows the EMSENSR- WSB to be connected to provide a BTLE connection using Broadcom based BTLE solutions.

NPA 201 Full Datasheet link:

Gerber files and PCB Footprints are available upon request.

Amphenol

Advanced Sensors

NPA 201-EV

Table of Contents
1 2 I2C 3 Schematics 4
• Simple 3 Command I2C Interface
• No Hardware Register Initialization
• VDD Supply Voltage to VDC
• 260 1260mBar Absolute Pressure Range
• Active Current Typical 3V = 35uA
• Sleep Current Typical 3V < 20nA Typ
• On-board 16bit Temperature Sensor <0.003K/LSB
• 2ms Wake-up Time to Active Analog Operation
• Fully Calibrated and Compensated
• Up to 3.4MHz I2C Operation
• Internal 18bit DSP Running Correction Algorithm
• 0.4in x 0.29in Breakout Board with .1in/2.54mm Header Spacing that Can be Directly Soldered
into a Prototype or Used with Breadboard. Headers are Spaced 0.4in Apart
• -40°C to +85°C Temperature Range

NPA 201-EV I2C Commands

I2C Commands

The NPA 201 utilizes and internal ASIC that initializes and calibrates the pressure sensor upon power-up. This allows for a SIMPLE I2C Command Set and avoids having to have the user initialize internal hardware registers on the NPA

The I2C Command Set makes use of only 3 commands and are shown below. Each Command is started as shown in Figure After the execution of a command busy = 0 the expected data can be read as illustrated in Figure 3, or if not data is returned by the command the next command can be sent. The Status can be read at any time as described in Figure

Command Request

Command Request I2C Write
from master to slave

S START condition

S SlaveAddr 0 A Command A P write
from slave to master

S SlaveAddr 0 A Command A CmdDat A CmdDat A P
<15:8>
<7:0>
write

Read Status

Figure 1 - I2C Command Request

P STOP condition A acknowledge N not acknowledge

Read Status I2C Read

S SlaveAddr 1 A Status N P
read

Read Data

Figure 2 - I2C Read Status

Read Data I2C Read
a Example after the completion of a Memory Read command

S SlaveAddr 1 A Status A MemDat A MemDat N P
<15:8>
<7:0>
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Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived NPA 201-EV Datasheet file may be downloaded here without warranties.

Datasheet ID: NPA 201-EV 517533