1800/1805 Series TO-8, 0 psi to 3 psi, 0 psi to 150 psi Silicon Pressure Sensors DESCRIPTION The 1800/1805 Series contains a solid state piezoresistive The 1800/1805 Series sensors are high performance TO-8 pressure sensor mounted in a standard TO-8 package. They pressure transducers specifically designed to address a variety are printed circuit board and pin-for-pin compatible with other of both low and medium pressure original equipment TO-8 pressure sensors. manufacture applications. The transducers offer two performance grades and a variety of compensation options, including span and calibration to within 2 mV (normalized output). The 1800/1805 Series can operate with either constant current or voltage excitation. FEATURES POTENTIAL APPLICATIONS Standard pressure ranges from 0 psi to 3 psi, 0 psi to Instrumentation calibration 150 psi Avionics/aerospace Gauge, absolute or differential models Medical equipment Voltage or constant current excitation HVAC Choice of temperature compensation options Pneumatic controls Laser trim, normalized output Laser trim, standard output Resistor compensation Uncompensated version available for microprocessor- based designs 1800/1805 Series TO-8, 0 psi to 3 psi, 0 psi to 150 psi ENVIRONMENTAL SPECIFICATIONS (All devices) Characteristic Parameter Characteristic Parameter Supply voltage, V 10 Vdc Insulation resistance 100 MOhm at 50 Vdc S Compensated temperature range -1 C to 54 C 34 F to 129 F Humidity 50 % 10 % Operating temperature tange -40 C to 121 C -40 F to 257 F Common-mode pressure 150 psig Vibration 10 g rms at 20 Hz to 200 Hz Max. soldering temperature 260 C 500 F 10 s max. Shock 100 g for 11 ms Excitation voltage V Supply voltage V =15 Vdc max. S s Life 100 million cycles Excitation current Supply current I = 2 mA max. s (1) PERFORMANCE CHARACTERISTICS Characteristic Min. Typ. Max. Unit (1) Zero pressure offset 0.5 mV (1) Zero pressure offset (3 psi to 5 only) 1 mV (2) Full-scale span Standard outputcurrent excitation 75 150 mV Standard outputvoltage excitation 40 120 mV Normalized outputcurrent excitation 98 102 mV Normalized outputcurrent excitation (3 psi only) 73 77 mV Normalized outputvoltage excitation 38 42 mV (3) Pressure non-linearity 0.15 0.20 %FSS (3) Pressure hysteresis 0.0125 %FSS Repeatability 0.0125 %FSS (4) Temperature effect on offset 0.5 mV (4) Temperature effect on offset (3 psi and 5 psi only) 1 mV Temperature effect on span 0.5 mV (4) Temperature effect on span (3 psi and 5 psi only) 1 mV Thermal hysteresis 0.1 %FSS (5) Response time 1 ms (6) Long term stability of offset and span 0.2 %FSS (7) Common mode voltage Standard outputcurrent excitation 50 % input Standard outputvoltage excitation 50 % input Normalized outputcurrent excitation 35 % input Normalized outputvoltage excitation 25 % input Input resistance Current excitation 2.0 8.0 k Voltage excitation 8.0 40 k Output resistance 3.5 6.0 k PRESSURE RANGE SPECIFICATIONS (8) (9) Catalog Listing Pressure Range Top Side Overpressure Bottom Side Overpressure 1805-00 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 3 psi 15 psi 9 psi 1805-01 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 5 psi 25 psi 15 psi 1800-02 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 10 psi 50 psi 30 psi 1800-03 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 15 psi 65 psi 45 psi 1800-07 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 30 psi 250 psi 50 psi 1800-08 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 50 psi 350 psi 50 psi 1800-09 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 100 psi 350 psi 50 psi 1800-10 (G,D) - (K,L) (0..4) (M,L,N) 0 psi to 150 psi 350 psi 50 psi Notes: 1. Reference conditions (unless otherwise noted) T = 25 C 77 F , Supply V = 10 Vdc 0.01 Vdc or I = 1.5 mA 0.0015 mA. A S S 2. Full-scale span (FSS) is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. FFS is ratiometric to the supply voltage. 3. Pressure non-linearity is based on best-fit straight line from the zero to the full-scale pressure. Pressure hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. 4. Maximum error band of the offset voltage or span over the compensated temperature range, relative to the 25 C 77 F reading. 5. Response time for a 0 psi to full-scale span pressure step change, 10 % to 90 % rise time. 6. Long term stability over a six month period. 7. Common mode voltage as measured from output to ground. For higher levels of common mode voltage, contact the factory. 8. Pressure overrange: Top: 5 x full-scale pressure or 350 psi, whichever is less. 9. Pressure overrange: Bottom: 3 x full-scale or 50 psi, whichever is less. 2 www.honeywell.com/sensing