Sensing and Internet of Things
Datasheet
Force Sensors
FSA Series, Compensated/Amplified
DESCRIPTION
The FSA Series are piezoresistive-based force sensors
offering a ratiometric analog or digital output for
reading force over the specified full scale force span and
temperature range. They are fully calibrated and temperature
compensated for sensor offset, sensitivity, temperature
effects, and nonlinearity using an on-board Application
Specific Integrated Circuit (ASIC). Direct mechanical coupling
allows for easy interface with the sensor, coupling with tubing,
membrane or a plunger, providing repeatable performance
and a reliable mechanical interface to the application. The
package also provides excellent corrosion resistance and
isolation to external package stress. All products are designed
and manufactured according to ISO 9001 standards.
VALUE TO CUSTOMERS
The FSA Series are designed to meet the customers’ need
for a compensated, amplified force sensor that provides
analog and digital outputs, a variety of force sensing ranges,
and enhanced durability and accuracy. Their flexible design
provides multiple standard configurations over a wide operating
temperature range.
DIFFERENTIATION
• Multiple force ranges allow the customer to choose the
force range to maximize sensitivity and improve system
resolution/performance
• Overforce provides enhanced durability in applications
where overforce may exist
• Enhanced accuracy includes all errors due to force non-
linearity, force hysteresis, and non-repeatability
• Total Error Band enhances system performance
• Digital output enhances performance through reduced
conversion requirements and the convenience of direct
interface to microprocessors
• Diagnostics functions allow the user to determine if the
sensor is working correctly by detecting if the electrical
paths are broken or shorted inside the sensor
• Supply voltage provides customers flexibility of design
within the application
FEATURES
• Wide variety of force ranges
- Newton (N): 5, 7.5, 10, 15, 20, 25
- pound (lb): 1, 1.5, 2, 3, 5
- gram (g): 500, 750
- kilogram (kg): 1, 2
• Total Error Band: ±5 %FSS
• Accuracy: ±3 %FSS
• Ratiometric analog or SPI or I2C-compatible digital output
• Fully calibrated and temperature compensated over a
temperature range of 5°C to 50°C [41°F to 122°F]
• Overforce: 6804 g [15 lb]
• Supply voltage: 3.3 Vdc typ. or 5.0 Vdc typ.
• Low power consumption: 13 mW (analog) or 20 mW (digital)
• Excellent part-to-part repeatability
• Enhanced reliability
• Stable interface plunger
• Internal diagnostic functions available
• REACH and RoHS compliant
POTENTIAL APPLICATIONS
Medical:
• Ambulatory non-invasive pump pressure
• Infusion pumps
• Kidney dialysis machines
• Occlusion detection
Industrial:
• Load and compression sensing
PORTFOLIO
The FSA Series joins the FSG Series, FSS Series, FSSSMT
Series, TBF Series, and 1865 Series.
32311096
Issue B
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Force Sensors, FSA Series Compensated/Amplified
Table 1. Operating Specifications
Characteristic
Analog Digital
Unit
Min. Typ. Max. Min. Typ. Max.
Supply voltage (Vsupply):1, 2, 3
3.3 Vdc
5.0 Vdc
3.0
4.75
3.3
5.0
3.6
5.25
3.0
4.75
3.3
5.0
3.6
5.25
Vdc
Supply current:
3.3 Vdc
5.0 Vdc
—
—
2.0
2.6
—
—
—
—
2.8
3.9
3.9
4.6
mA
Power input 13 20 mW
Operating temperature range40 [32] —70 [158] 0 [32] —70 [158] °C [°F]
Compensated temperature range55 [41] —50 [122] 5 [41] —50 [122] °C [°F]
Storage temperature range 40 [40] —85 [185] 40 [40] —85 [185] °C [°F]
Startup time (power up to data ready) ——5— — 3 ms
Response time —1——0.42 0.84 ms
Clipping limit:
upper
lower
—
2.5
—
—
97. 5
—
—
—
—
—
—
—
%Vsupply
SPI/I2C voltage level:
low
high
—
—
—
—
—
—
—
80
—
—
20
—
%Vsupply
Pull up on SDA/MISO, SCL/SCLK, SS — — — 1 — — kOhm
Accuracy6— — ±3 — — ±3 %FSS7 BFSL
Total Error Band8— — ±5 — — ±5 %FSS
Output resolution ———12 — — bits
Long term stability9 — ±1.3 — — ±1.3 —%FSS
1Sensors are either 3.3 Vdc or 5.0 Vdc based on the catalog listing selected.
2Ratiometricity of the sensor (the ability of the device output to scale to the supply voltage) is achieved within the specified operating
voltage.
3The sensor is not reverse polarity protected. Incorrect application of supply voltage or ground to the wrong pin may cause electrical
failure.
4Operating temperature range: The temperature range over which the sensor will produce an output proportional to force.
5Compensated temperature range: The temperature range over which the sensor will produce an output proportional to force within
the specified performance limits.
6Accuracy: The maximum deviation in output from a Best Fit Straight Line (BFSL) fitted to the output measured over the force range
at 25°C [77°F]. Includes all errors due to force non-linearity, force hysteresis, and non-repeatability.
7Full Scale Span (FSS): The algebraic difference between the output voltage at full scale force and the output at zero force.
8Total Error Band (TEB): Combined error from calibration, accuracy and temperature effects over the compensated temperature
range at 5.0 V from 15 %FSS to 95 %FSS.
9Long-term stability after 1000 hr of operation at 25°C [77°F].
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Sensing and Internet of Things
Force Sensors, FSA Series Compensated/Amplified
Table 3. Materials1
Component Material
Covers high temperature polyamide
Plunger stainless steel 316
Substrate alumina, ceramic
Adhesives epoxy, silicone
Electronic components ceramic silicon, glass, solder
1Contact Honeywell customer service for detailed material information.
Table 2. Environmental Specifications
Characteristic Parameter
Humidity 0% to 95% RH, non-condensing
Vibration MILSTD202, Method 214, Condition 1E (16.9 G)
Shock MILSTD202, Method 213, Condition F (1500 G)
Life11 million full scale force cycles minimum
1Life may vary depending on specific application in which the sensor is utilized.
Table 4. Absolute Maximum Specifications
Characteristic Min. Max. Unit
Supply voltage 0.3 6.0 Vdc
Voltage on any pin 0.3 Vsupply + 0.3 V
Digital interface clock frequency:
SPI
I2C
50
100
800
400
kHz
ESD susceptibility (human body model) 2 — kV
Storage temperature range 40 [40] 85 [185] °C [°F]
Overforce limit —6804 [15] g [lb]
Minimum operating voltage 2.8 Vdc
Lead soldering time and temperature 4 s max. at 220°C [428°F]
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Force Sensors, FSA Series Compensated/Amplified
Figure 1. Nomenclature and Order Guide
FSA G P N XX 001 L C A A 3
Series
Coupling
FSA Force Sensor
Compensated/Amplified
For example, FSAGPNXX001LCAA3 denes an FSA Series Force Sensor, gel coupling, plunger contact element, no diagnostics,
2 lb force range, force unit in pounds, compression force type, analog output, 10% to 90% transfer function, 3.3 Vdc supply voltage
P
Plunger
Contact Element
Diagnostics Option
XX
Future Use
Newton (N)
pound (lb)
gram (g)
kilogram (kg)
005
7.5
010
015
020
025
Force Type
Force Unit
1
Custom designations available upon request.
2
Consult with factory.
3
For other available transfer functions, contact Honeywell customer service.
Force Sensors, FSA Series,
Compensated/Amplied
Product Nomenclature
G Gel
Analog
SPI
I
2
C, Address 0x28
I
2
C, Address 0x38
I
2
C, Address 0x48
I
2
C, Address 0x58
I
2
C, Address 0x68
500 g
750 g
001
002
A
S
2
3
4
5
6
Force Range1
10% to 90%
5% to 95%
20% to 80%
A
B
C
Newton (N)
5 N
7.5 N
10 N
15 N
20 N
25 N
001
1.5
002
003
005
1 lb
1.5 lb
2 lb
3 lb
5 lb
500
750
1 kg
2 kg
pound (lb) gram (g) kilogram (kg)
W
L
F
R
C
Compression
3.3 Vdc ±10%
5 Vdc ±10%
3
5
No diagnostics
Diagnostics, sensor short and open
N
D
Output
Supply Voltage
Transfer Function3
FSAGPDXX010WCAA5
FSAGPDXX001RCAB5
FSAGPNXX1.5LCAC5
FSAGPNXX003LCAC5
FSAGPNXX010WC2C3
FSAGPNXX001RC4C5
FSAGPDXX005LCSB5
FSAGPDXX1.5LC5B5
COMMON CATALOG LISTINGS
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Sensing and Internet of Things
Force Sensors, FSA Series Compensated/Amplified
Figure 2. Transfer Function Limits1
Analog Version
Digital Version
1Transfer Function “A” is shown. See Figure 1 for other available transfer function options.
0
10
20
30
40
50
60
70
80
90
100
12345678910
5% Total Error Band
0
F
min.
F
max.
Compensated Force Range
Force (example unit)
Output (%Vsupply)
0.8 x Vsupply
Output (V) = x (Force
applied
) + 0.10 x Vsupply
Ideal
Force
range
80%
Output (% of 2
14
counts) = x (Force
applied
) + 10%
Force
range
0
10
20
30
40
50
60
70
80
90
100
12345678910
5% Total Error Band
0
F
min.
F
max.
Compensated Force Range
Force (example unit)
Output (%Vsupply)
Ideal
6Sensing and Internet of Things
Force Sensors, FSA Series Compensated/Amplified
25,02
[0.99]
23,57
[0.93]
1,79
[0.07]
6,11
[0.24]
5,74
[0.23]
3X 6,48
[0.26]
3X 0,63
[0.02]
3X 2,54
[0.1]
12,19
[0.48]
5,7
[0.22]
3,68
[0.14]
17,36
[0.68]
7,1
[0.28]
8,25
[0.32]
3X 1,31
[0.05]
2X 3,94
[0.15]
3X 0,61
[0.02]
Pin 1
ø12,70
[0.5]
Plunger
17,36
[0.68]
25,02
[0.99]
23,57
[0.93]
1,79
[0.07]
5,7
[0.22]
3,68
[0.14]
12,19
[0.48]
7,1
[0.28]
8,25
[0.32]
5X 1,31
[0.05]
2X 3,94
[0.15]
5X 0,61
[0.02]
5X 6,48
[0.26]
3,57
[0.14]
5,74
[0.23]
5X 0,63
[0.02]
4X 2,54
[0.1]
ø12,70
[0.5]
Pin 1
Plunger
Function Pin 1 Pin 2 Pin 3
analog Vsupply Vout GND
Function Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
SPI GND Vsupply SS MISO SCLK
I2CGND Vsupply N/C SDA SCL
Figure 3. Mounting Dimensions (For reference only: mm/in.)
Analog version
Digital version
Find out more
Honeywell serves its customers through
a worldwide network of sales offices and
distributors. For application assistance, current
specifications, pricing or name of the nearest
Authorized Distributor, contact your local sales
office.
To learn more about Honeywell’s sensing and
switching products, call
+1-815-235-6847 or 1-800-537-6945, visit
sensing.honeywell.com, or e-mail inquiries to
info.sc@honeywell.com
Honeywell Sensing and Internet of Things
9680 Old Bailes Road
Fort Mill, SC 29707
honeywell.com
ADDITIONAL INFORMATION
The following associated literature is available on the
Honeywell web site at sensing.honeywell.com:
• Product Range Guide
• Product Line Guide
• Product Installation Instructions
• Technical Information:
- SPI Communications with Honeywell Digital Output
Force Sensors
- I2C Communications with Honeywell Digital Output
Force Sensors
OUTPUT FORCE SENSORS
323110 9 6BEN | B | 1/17
© 2017 Honeywell International Inc. All rights reserved.
Warranty/Remedy
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of defective materials and faulty workmanship during the
applicable warranty period. Honeywell’s standard product
warranty applies unless agreed to otherwise by Honeywell
in writing; please refer to your order acknowledgment or
consult your local sales office for specific warranty details.
If warranted goods are returned to Honeywell during the
period of coverage, Honeywell will repair or replace, at its
option, without charge those items that Honeywell, in its sole
discretion, finds defective. The foregoing is buyer’s sole
remedy and is in lieu of all other warranties, expressed or
implied, including those of merchantability and fitness for
a particular purpose. In no event shall Honeywell be liable
for consequential, special, or indirect damages.
While Honeywell may provide application assistance
personally, through our literature and the Honeywell web site, it
is buyer’s sole responsibility to determine the suitability of the
product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this writing.
However, Honeywell assumes no responsibility for its use.
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this datasheet is for
reference only. Do not use this document as a product
installation guide.
• Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
