1-16 HITs – Standard
Model 1220
PC Board Mountable Pressure Sensor
0-50 mV Output
Gage, Differential and Absolute
Temperature Compensated
Process Control
Medical Instrumentation
HVAC
Barometric Pressure
Air Flow Management
Avionics
FEATURES
Dual-in-line Package
±0.1% Non-linearity
±0.5% Temperature Performance
1.0% Interchangeable Span
(provided by current set resistor)
Solid State Reliability
Low Power
STANDARD RANGES
Range psia psid psig
0 to 2 ● ●
0 to 5 ●●●
0 to 15 ●●●
0 to 30 ●●●
0 to 50 ●●●
0 to 100 ●●●
DESCRIPTION
The Model 1220 is a temperatur e compensated, piezore si sti ve
silicon pressure sensor packaged in a dual-in-line configuration
and intended for cost sensitive applications where excellent
performance and long -term stability are required.
Integ ral temperat ure compens ation is pr ovided over a range
of 0-50°C using laser-tr immed re si stors. An a dditional laser-
trimmed resistor is incl uded to normalize pressure sensit ivity
variati ons by se tting the curre nt dri ve to the sensor bridge,
resulting in an interchangeability of ±1% prior to amplification.
Gage, absolute, and differential pressure ranges from 0-2
PSI to 0-100 PSI are ava ila ble. Multiple lead and tube
configurati ons ar e also avail able for cus tomizing the pac kage for
spe ci f ic ap p l ic at ions.
Please refer to the low pressure section for information on
products with operating pressures less than 0-2 PSI. For a
compensated sensor using a gain set re sistor as opposed to a
curr ent set res istor, please r efer to the Model 1210.
DIMENSIONS
PC Board Mountable Pressure Sensor Model 1220
HITs – Standard
June 2001
PERFORMANCE SPECIFICATIONS
Supply Vol tage: See application schematic
Ambient Temperature: 25 °C (Unless otherwise specified)
Notes
1. For 2 psi output span is 20.0 mV ± 1%, amplified span is 1.232V and TC
zero temperature error is ±1.25%.
2. Compensation resistors are an integral part of the sensor package; no
additional external resistors are required. Pins 7 and 8 must be kept
open.
3. Best Fit Straight Line.
4. Temperature range: 0-50°C in reference to 25°C.
5. Guarantees input/output ratiometricity.
6. For a zero-to-full scale pressure step change.
7. 10 Hz to 1 kHz.
8. Prevents increase of TC-Span due to output loading.
9. 3X or 200 psi maximum, whichever is less. 20 psi for 2 psi and 5 psi
versions.
10. Wetted materials are glass, ceramic, silicon, RTV, nickel, gold, and
aluminum.
11. Soldering of lead pins: 250°C for 5 seconds maximum.
12. Tube length: L=470 ± 5 mil, S=300 ± 3 mil, N=no tube.
13. Lead pins can either be in the same or the opposite direction as the
pressure tube. See Dimensions drawing for lead configurations.
CONNECTIONS ORDERING INFORMATION
APPLICATION SCHEMATIC
PARAMETERS MIN TYP MAX UNITS NOTES
Full Scale Output Span 49.5 50.0 50.5 mV 1
Zero Pressure Output 2±mV2
Pressure Non-linearity 0.05 0.1 ±% Span 3
Pressure Hysteresis 0.01 0.1 ±% Span
Input & Output Resistance 2500 4400 6000 Ω
Temperature Error - Span 0.3 0.5 ±% Span 2, 4
Temperature Error - Zero 0.1 0.5 ±% Span 1, 2, 4
Thermal Hysteresis - Zero 0.1 ±% Span
Supply Current 2.0 mA 5
Response Time 1.0 msec 6
Output Noise 1.0 µV p-p 7
Output Load Resistance 2 MΩ8
Insulation Resistance (50 VDC) 50 MΩ
Pressure Overload 3X Rated 9
Operating Temperature -40°C to +125°C
Storage Temperature -50°C to +150°C
Weight 3 Grams
Media Non-corrosive Gases Compatible with Wetted Materials 10
1220 A - 015 G - 3 S
P
Model
ressure Tubes (L, S, N - see note 12)
Lead Configuration (1, 3 - see note 13)
Type (G = Gage, A = Absolute, D = Differential)
Grade
RangePressure
LEADER Electronic Co., Ltd - 116, Jianghuali, Jianghua Road, Jiangmen City, GD, PRC
Tel: + 86 750 3101711, 3379183 Fax: + 86 750 3388669 Website: www.leadersensors.com - e-mail: leader@leadersensors.com
