MS5525DSO
(Digital Small Outline)
SPECIFICATIONS
Integrated Digital Pressure Sensor
(24-bit
∆Σ ADC)
Fast Conversion Down to 1 ms
Low Power, 1
µA (standby < 0.15 µA)
Supply Voltage: 1.8 to 3.6V
Pressure Range: 1 to 30 PSI
I
2
C and SPI Interface
The MS5525DSO is a new generation of Digital Small Outline
pressure sensors from MEAS with SPI and I
2
C bus interface
designed for high volume OEM users. The sensor module
includes a pressure sensor and an ultra low power 24-bit
∆Σ
ADC with internal factory calibrated coefficients. It provides a
24-bit digital pressure and temperature value and different
operation modes that allow the user to optimize for conversion
speed and current consumption. The MS5525DSO can be
interfaced to virtually any microcontroller. The communication
protocol is simple, without the need of programming internal
registers in the device.
This new sensor module generation is based on leading
MEMS technology and latest benefits from TE proven
experience and know-how in high volume manufacturing of
pressure modules, which have been widely used for over a
decade.
The rugged engineered thermoplastic transducer is available
in single and dual port configurations, and can measure
absolute, gauge, compound, and differential pressure from 1
to 30psi.
SENSOR SOLUTIONS
///MS5525DSO
06/2017
Page 1
MS5525DSO
(Digital Small Outline)
FEATURES
Small Outline IC Package
Barbed Pressure Ports
Low Power, High Resolution ADC
Digital Pressure and Temperature Outputs
APPLICATIONS
Factory Automation
Altitude and Airspeed Measurements
Medical Instruments
Leak Detection
STANDARD RANGES (PSI)
FS Pressure
1
2
5
15
30
Absolute
Gauge
DB, SB, ST, DH,FT
DB, SB, ST, DH,FT
DB, SB, ST, DH,FT
DB, SB, ST, DH,FT
DB, SB, ST, DH,FT
Differential
DB, SB,ST, DH
DB, SB,ST, DH
DB, SB,ST ,DH
DB, DH
DB, DH
DB, DH,FT
DB, DH,FT
See Package Configurations: DB= Dual Barb, DH= Dual Hole, SB=Single Barb, ST=Single Tube, FT=Front Side Tube
SENSOR SOLUTIONS
///MS5525DSO
06/2017
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MS5525DSO
(Digital Small Outline)
ABSOLUTE MAXIMUM RATING
Parameter
Supply Voltage
Storage Temperature
Overpressure
Burst Pressure
ESD
Solder Temperature
Conditions
T
A
= 25°C
T
A
= 25 °C, both Ports
T
A
= 25 °C, Port 1
HBM
Min
-0.3
-40
Max
3.6
125
60
Unit
V
°C
psi
psi
kV
Symbol/Notes
V
DD
-4
+4
250°C, 5 sec max.
See Table 1
EN 61000-4-2
Table 1- BURST PRESSURE BY RANGE AND PORT DESIGNATION.
Range
001
002
005
015
030
Port 1
10
20
50
120
120
Port 2
10
20
15
60
120
Unit
psi
psi
psi
psi
psi
ENVIRONMENTAL SPECIFICATIONS
Parameter
Mechanical Shock
Mechanical Vibration
Thermal Shock
Life
MTTF
Conditions
Mil Spec 202F, Method 213B, Condition C, 3 Drops
Mil Spec 202F, Method 214A, Condition 1E, 1Hr Each Axis
100 Cycles over Storage Temperature, 30 minute dwell
1 Million FS Cycles
>10Yrs, 70 ºC, 1 Million Pressure Cycles, 120%FS Pressure
SENSOR SOLUTIONS
///MS5525DSO
06/2017
Page 3
MS5525DSO
(Digital Small Outline)
PERFORMANCE SPECIFICATIONS
Supply Voltage
1
3.0 Vdc
Reference Temperature: 25°C (unless otherwise specified)
PARAMETERS
Operating Voltage
ADC
Pressure Accuracy
Total Error Band (TEB)
Temperature Accuracy (Reference Temperature)
Temperature Accuracy
Supply Current
Compensated Temperature
Operating Temperature
Conversion Time
Weight
Media
0
-40
See OSR Table Below
3
-2.5
±1.5
±2.5
See OSR Table Below
85
+125
See Table 2 Below
2.5
MIN
1.8
TYP
MAX
3.6
24
bits
%FS
%FS
ºC
ºC
mA
ºC
ºC
mS
grams
2,5
3
4,5
4,5
UNITS
NOTES
Non-Corrosive Dry Gases Compatible with Silicon, Glass, LCP, RTV,
Gold, Thermo-Epoxy, Silicone Gel, Aluminum and Epoxy. See
“Wetted Material by Port Designation” chart.
Notes
1. Proper operation requires an external capacitor placed as shown in Application Circuit. Output is not ratiometric to supply voltage.
2. The maximum deviation from a best fit straight line(BFSL) fitted to the output measured over the pressure range at 25°C. Includes all
errors due to pressure non linearity, hysteresis, and non repeatability.
3. The maximum deviation from ideal output with respect to input pressure and temperature over the compensated temperature range.
Total error band (TEB) includes all accuracy errors, thermal errors over the compensated temperature range, span and offset calibration
tolerances. TEB values are valid only at the calibrated supply voltage.
4. The deviation from a best fit straight line (BFSL) from 25°C. to 85°C.
5. Six coefficients must be read by microcontroller software and are used in a mathematical calculation for converting D1 and D2 into
compensated pressure and temperature values.
Table 2- TYPICAL ACCURACY SPECIFICATION BY PRESSURE RANGE
Range
001
002
005
015
030
Port 1
±0.25
±0.25
±0.50
±0.25
±0.25
Port 2
±1.0
±0.5
±1.0
±0.25
±0.25
Unit
%FSS
%FSS
%FSS
%FSS
%FSS
SENSOR SOLUTIONS
///MS5525DSO
06/2017
Page 4
MS5525DSO
(Digital Small Outline)
OVERSAMPLNG RATIO (OSR) PERFORMANCE CHARACTERISTICS
SUPPLY CURRENT CHARACTERISTICS
Parameter
Supply current
(1 sample per sec.)
Peak supply current
Standby supply current
Symbol
Conditions
OSR
Min.
4096
2048
1024
512
256
during conversion
at 25°
C
Typ.
12.5
6.3
3.2
1.7
0.9
1.4
0.02
Max
Unit
I
DD
µA
0.14
mA
µA
ANALOG DIGITAL CONVERTER (ADC)
Parameter
Symbol
Conditions
OSR
4096
2048
1024
512
256
Min.
7.40
3.72
1.88
0.95
0.48
Typ.
8.22
4.13
2.08
1.06
0.54
Max
9.04
4.54
2.28
1.17
0.60
Unit
Conversion time
t
c
ms
INPUT/OUTPUT SPECIFICATIONS
DIGITAL INPUTS (CSB, I C, DIN, SCLK)
Parameter
Serial data clock
Serial data clock
Input high voltage
Input low voltage
Input leakage current
Input capacitance
2
2
Symbol
SCLK
SCL
V
IH
V
IL
I
leak25°C
I
leak85°C
C
IN
Conditions
SPI protocol
I2C protocol
Pins CSB
Min.
Typ.
80% V
DD
0% V
DD
Max
20
400
100% V
DD
20% V
DD
0.15
6
Unit
MHz
kHz
V
V
µA
pF
at 25°
C
PRESSURE OUTPUTS (I C, DOUT)
Parameter
Output high voltage
Output low voltage
Load capacitance
Symbol
V
OH
V
OL
C
LOAD
Conditions
I
source
= 0.6 mA
I
sink
= 0.6 mA
Min.
80% V
DD
0% V
DD
Typ.
Max
100% V
DD
20% V
DD
16
Unit
V
V
pF
SENSOR SOLUTIONS
///MS5525DSO
06/2017
Page 5
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