Digital Output Absolute
Pressure Sensor
NPB 101
Features
• Absolute Pressure Range: 260 to 1260 mBar
• Sleep State Current: <20 nA Typ. (25°C)
• Temperature Resolution: <0.003K/LSB
• Pressure and Temperature Resolution: 16-bit
• Operating Temperature: –40°C to +85°C
• Absolute Accuracy: ±- 0.2 mbar /
Relative Accuracy: ± 0.1 mbar Typical
• I2C interface
• Operating Range: 1.7 ~ 3.6V
• Small size package (2.0 x 2.5 x 1.0mm)
• 8-HCLGA package
• Fully-calibrated and compensated
• Digital compensation via 18-bit internal digital
signal processor (DSP) running a correction
algorithm
Applications
• Mobile Devices (Smart Phones, Smart Watches,
Tablets)
• Indoor and Outdoor Navigation
• Enhancement of GPS Navigation
• Altimeter and Barometer for Portable Devices
• Weather Station Equipment
• Leisure and Sports
• Hard Disk Drive (HDD)
• Weather Forecast
• Thermal Runaway Detection
Amphenol
Advanced Sensors
2 | NovaSensor NPB 101
Overview
Figure 1 - Block Diagram
• The NPB 101 is an absolute pressure sensor with digital output for low cost applications.
• With a miniature 2.0 x 2.5 x 1.0mm HCLGA package, it is ideally suited for portable electronics and
space-constrained applications.
• Low current consumption of 20 nA Typ. during Shutdown (Sleep) Mode is ideal for battery and other low-
power applications.
• A wide operating temperature range from -40°C to +85°C ts well with demanding environmental
requirements.
• NPB 101 employs a MEMS pressure sensor with a signal-conditioning IC to provide accurate pressure
measurement from 260 to 1260 mBar.
• The NPB 101 not only compensates and calibrates the pressure element, but also provides a corrected
temperature output using an internal sensor.
• The measured and corrected bridge values are provided at the digital output pins, through an I2C
interface.
• Digital compensation of the signal offset, sensitivity, temperature and non-linearity is accomplished via
18-bit internal digital signal processor (DSP) running a correction algorithm.
• Calibration coefcients are stored on-chip in highly reliable, nonvolatile, multiple-time programmable
(MTP) memory.
Block Diagram
Sensor
Bridge
ASIC
VDDB
INP
INN
VSSB
Vdd
Vss (GND)
SCL
SDA
NovaSensor NPB 101 | 3
Pin Configuration
8-HCLGA
Pin Description
PIN Number PIN Name Description I/O
1 GND Ground ground
2 N/C Not Connected -
3 SDA Data in/out for I2C I/O
4 SCL Clock input for I2C I
5 N/C Not Connected -
6 VDD Power supply power
7 GND Ground ground
8 VDD Power supply power
Figure 2 - PKG Diagram, Bottom View
4
4
3
3
2
2
1
1
5
5
6
6
7
7
8
8
4 | NovaSensor NPB 101
Electrical Specifications
Symbol Parameter Limits Unit Remark
Min Typ Max
VDD Supply Voltage 1.7 - 3.6 V
Top Operating Temperature -40 - 85 °C
Tacc Full Accuracy Temperature -20 - 80 °C
IVDD Current Consumption
- 35 - µA Read time = 500ms
- 20 250 nA Sleep State, Idle Current,<85 C
Pop Operating Pressure Range 260 - 1260 mBar
Pbit Pressure Output Data Bits - 16 - bit
Pres Pressure Resolution -0.015
(0.12) -mBar(m)
Tbit Temperature Output Data - 16 - bit
Tabs Temperature Accuracy - ± 2 - °C T= 0 to 60°C
P TEB Pressure Accuracy -1 +1 %FSO T= 20 to 60°C
POWER UP
TSTA1
Start-up Time
1ms VDD ramp up to interface
communication
TSTA2 2.5 ms VDD ramp up to analog operation
TWUP1
Wake-up Time
0.5 ms Sleep to Active State interface
communication
TWUP2 2ms Sleep to Active State analog operation
INTERFACE
I²C Slave Address 0x27
Procedure for changing address is
detailed in Application Guide AAS-
910-290
fC,I2C I²C Clock Frequency 3.4 MHz
Symbol Parameter Limits Unit
Min Typ Max
Vdd Supply voltage -0.4 - 3.63 V
POverpressure
(Pressure element only, Non-hermetic package) - - 10,000 mBar
VHBM1
Electrostatic Discharge Tolerance – Human
Body Model 4 - - kV
TSTOR Storage Temperature -40 - 120 °C
Absolute Maximum Ratings
NovaSensor NPB 101 | 5
Functional Description
In I2C Mode, each command is started as shown in Figure 3. Only the number of bytes that is needed for the
command has to be sent. After the execution of a command (busy = 0), the expected data can be read as il-
lustrated in Figure 5. If no data is returned by the command, the next command can be sent. The status can
be read at any time as described in Figure 4.
I2C
Figure 3 - I2C Command Request
Figure 4 - I2C Read Status
All mandatory I²C-bus protocol features are implemented. Optional features, such as clock stretching, 10-bit
slave address, etc., are not supported by the NPB 101 interface.
In I²C-High Speed Mode, a command consists of a xed length of three bytes.
Figure 5 - I2C Read Data
S SlaveAddr 1 A Status N P
read
Read Status (I2C Read)
S SlaveAddr 1 A Status A
read
Read Data (I2C Read)
S SlaveAddr 1 A Status A BridgeDat
<15:8>
read
ABridgeDat
<7:0>
(a) Example after the completion of a Memory Read command
MemDat
<15:8> AMemDat
<7:0> N P
(b) Example after the completion of a Full Measurement command (ACHEX)
ATempDat
<15:8> ATempDat
<7:0> N P
S SlaveAddr 0 A Command A P
write
Command Request (I2C Write)
from master to slave
from slave to master
S
P
A
START condition
STOP condition
acknowledge
Nnot acknowledge
S SlaveAddr 0 A Command A CmdDat
<15:8>
write
ACmdDat
<7:0> A P
6 | NovaSensor NPB 101
I2C Commands
The I2C commands supported by the NPB 101 are listed in the table below.
The command to read an address in the user memory is the same as its address.
Command
(Byte) Returns Description
ACHEX
8 bit status byte
+
16 bit corrected bridge
pressure data
+
16 bit corrected internal
temperature data
Measure Triggers full measurement cycle and
calculation and storage of data in interface
(configurations from MTP).
Minimum Read time = 20ms
- Convert formula -
Temperature = TempData/65535*(85+40) -40
Pressure = BridgeData/65535*(1260-260) +260
Calculating Absolute Altitude
With the measured pressure (p) and the pressure at sea level (p0), e.g. 1013.25 mBar, the altitude in meters
can be calculated with the international formula.
Figure 6 - Altitude above sea level
NovaSensor NPB 101 | 7
Mechanical Data
Mechanical Data (unit: mm)
Pin No. Function Pin No. Function
1 GND 5 N/C
2 N/C 6 VDD
3 SDA 7 GND
4 SCL 8 VDD
PCB Layout Footprint (unit: mm)
8 | NovaSensor NPB 101
Application Information
Application Note
The pull up resistors (R1, R2) of two line serial bus are recommended to be around 2.2~10K ohm. VDD is
recommended 1.7 ~ 3.6V. Pull up voltage should be use VDD.
Figure 7 - Hardware pin connection diagram
NPB 101
NovaSensor NPB 101 | 9
Reflow Profile
Reference J-STD-020-C, J-STD-033
Maximum Peak
Temperature 260°C
Moisture Sensitivity Level MSL 3
Bake Condition
Exposure Time > 72 hours Exposure Time < 72 hours
Bake @ 125°C 9 hours 7 hours
Bake @ 90°C, < 5% RH 33 hours 23 hours
Bake @ 40°C, < 5% RH 13 days 9 days
Recommended Solder Reow
* Standard Reow Soldering Condition
Profile Feature Pb-Free Assembly
Average ramp-up rate (TSMAX to TP) 3°C/second max.
Preheat
- Temperature Min. (TSMIN)
- Temperature Max. (TSMAX)
- Time (TSMIN to TSMAX) (TS)
150°C
200°C
60 ~ 180 seconds
Time maintained above :
- Temperature (TL)
- Time (tL)
217°C
60 ~ 150 seconds
Peak temperature (TP) 260°C
Time within 5°C of actual peak
temperature (TP)220 ~ 40 seconds
Ramp-down rate 6°C/second max.
Time 25°C to peak temperature 8 minutes max.
CAUTION
• If cleaning process is needed after reow,
you must attach Antipollution Tape.
- Cleaner can ow into the Air Hole and
damage the product.
• Do Not expose to ultrasonic processing
or cleaning.
• High-Pressure Air Brush is NOT Allowed.
- The Air Brush may Damage the
Membrane and/or Dust Inow.
10 | NovaSensor NPB 101
Package Specifications
Carrier Tape Information I (unit: mm)
Carrier Tape Information II (unit: mm)
Notes:
1. MSL 3 (IPC/JEDEC J-STD-020C)
2. REEL DIAMETER : 330±1 mm
3. Quantity Per Reel : 5,000EA
4. Label : external package & reel
Reel Information (unit: mm)
PART NO : NPA201
SPECIFICATION : Digital Pressure Sensor
LOT NO : R339D
QTY : 5,000 EA
VENDOR CODE : BMSS
VENDOR NAME : Amphenol Advanced Sensors
PART NO : NPB 101
SPECIFICATION : Digital Barometric Pressure Sensor
LOT NO : XXXX
QTY : 5,000 EA
VENDOR NAME : Amphenol Advanced Sensors
Ordering Information
Part Number : NPB 101
NovaSensor NPB 101 | 11
Conditions of Storage & Bake
• Use this product within 6 months after receipt.
• Unopened vacuum sealed bags with packaged parts should be stored from 5 to 35°C and 20 to
70% RH.
• Product used more than 6 months after receipt, must be inspected for humidity exposure before
reow solder. If baking is required, then bake product in heat-resistant trays. Do not bake in the
packing materials (Base Tape, Reel Tape and Cover Tape).
• The product shall be stored in non-corrosive gas (N2, Argon).
• Prevent damage to the product and packing materials by avoiding excessive mechanical shock,
which includes, but is not limited to dropping the product or poking it with sharp objects.
• This product is applicable to MSL3 (Based on JEDEC Standard J-STD-020).
• After the packing opened, the product shall be stored at <30°C / <60% RH and the product
shall be used within 168 hours.
• When the color of the indicator in the packing changed, the product shall be baked before
soldering.
• Baking condition : See table on page 9 for complete details.
Warranty
Amphenol Advanced Sensors warrants its products against defects in material and workmanship for 12
months from the date of shipment. Products not subjected to misuse will be repaired or replaced. Amphenol
Advanced Sensors reserves the right to make changes without further notice to any products herein.
Amphenol Advanced Sensors makes no warranty, representation or guarantee regarding the suitability of its
products for any particular application, nor does Amphenol Advanced Sensors assume any liability arising
out of the application or use of any product or circuit and specically disclaims and all liability without
limitation consequential or incidental damages. The foregoing warranties are exclusive and in lieu of all other
warranties, whether written, oral, implied or statutory. No implied statutory warranty of merchantability or
tness for particular purpose shall apply.
AAS-920-770A - 02/2020
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© 2020 Amphenol Corporation. All Rights Reserved. Specications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
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Advanced Sensors