iMADC-01 - Micro Air Data Computer for UAV and OPV

Sep 17, 2026

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iMADC-01 is a micro air data computer for UAV and OPV that generates static pressure, dynamic pressure, and related air data outputs for flight applications. It uses an integrated air data computation system and provides results through a CANaerospace interface over CANbus. The unit delivers indicated/true airspeed and pressure altitude with high accuracy across a large measurement range, supports optional analog inputs for angle of attack and sideslip, and offers configurable data update rates with strong EMI/EMC protection.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

Overview

Key Features and Interfaces

Technical Data

Connector Pinout and Drawing

iMADC-01 Micro Air Data Computer for UAV and OPV iMADC-01 provides static and dynamic pressure and air data information, which are generated from an integrated micro air data computer. A CAN aerospace interface provides all result data via CANbus. The power supply is fully EMI/EMC protected for aviation applications. • CANaerospace interface (ARINC825) • Static pressure and total pressure output • 4 analog inputs for 􀁄 and 􀁅 meas. (option) • Indicated and True Airspeed, pressure altitude • High accuracy, large measurement range • Wide range supply voltage 9 36 V DC , full EMI/EMC protection for aviation applications • direct supported by INS/GNSS systems of family iNAT / iSULONA / iCOMBANA / iPRENA The iMADC-01 provides an interface for plug&play operation with iMAR’s vertical reference units of type iNAT-M200, iNAT-CFM etc. The iMADC-01 is designed for UAV applications and OPV with the potential to be EASA certified on demand. Technical Data of iMADC-01: Value Performance Operating Altitude: up to 10’000 m (optional >10’000 m with reduced accuracy) Pressure Altitude: -600 +10’000 m (accuracy: +/-10 m @ 20’000 ft; resolution: < 0.02 m) Pressure Altitude Rate: +/-50 m/s (accuracy: +/-0.5 m/s; resolution: < 0.01 m/s) Indicated/True Air Speed:0 100 m/s [TBD](accuracy: +/-1 m/s @ v > 15 m/s; res. 0.01 m/s) Static Pressure: 0 1’100 hPa (accuracy: +/ -0.06 % full scale; resolution: < 0.02 Pa) Dynamic Pressure: 0 80 hPa (accuracy: +/ -0.08 % full scale; resolution: < 0.005 Pa) Outside Air Temperature:-55 +85 °C (resolution: +/ -0.5 K) Humidity: < 95 % non-condensing Data Update Rate: configurable, 20 Hz default Digital Interface: CANaerospace rev. 2.0 (according to ISO 11898 , electrically insulated, configurable 125 kBd 1 Mbit/s, transceiver with dominant timeout protection. OAT Interface: Sensor type: Resistor; IEC-751, 2 mA max; 381 􀀺 q-60 °C / 711 􀀺 @ 110 °C Analog Interface (opt.): up to 4 analog input channels for angle of attack (􀁄) / sideslip (􀁅) [incl. 5 V supply] Data Output: Indicated and True Airspeed, Vertical Airspeed, Pressure Altitude, Static and Total Pressure, Outside Air Temperature (OAT) [OAT sensor to be provided by user] Connector: MIL-C-38999-III, type D38999/20FB35PA, 13 pin Temperature: -40...+71 °C (case temperature) operational Power: 9 36 V DC; < 2.5 W Size / Weight: 90x109x66 mm (metal case, IP68 , plus connector) , approx. 450 grams Environmental Prot.: MIL-STD-810F (sand/dust/water/humidity/temp./shock/vibr. ); MIL-STD-461E Shock, Vibration; MTBF: 50 g, 11 ms ; 5...2’000 Hz 5 g(rms); aviation proofed; > 10’000 hrs iMAR Navigation GmbH • Im Reihersbruch 3 • D-66386 St. Ingbert / Germany Phone: +49-(0)-6894-9657-0 • Fax: +49-(0)-6894-9657-22 [www.imar-navigation.de](www.imar-navigation.de) • [sales@imar-navigation.de](sales@imar-navigation.de) © iMAR􀂓 02.04.2020 rev. 1.04 DocNo.: DOC130501013 technical modifications reserved w/o notice In co-operation with Stock Flight Systems Connector Pinout and Drawing of iMADC-01: System Connector: MIL-C-38999 III, Type 20FB35PA (13 pin) Pin 1: Power Supply IN (9 36 V DC) Pin 2: Power GND IN Pin 3: Power Supply OUT (internally connected to PSupply IN) Pin 4: Power GND OUT (internally connected to PGND IN) Pin 5: CAN-Low IN Pin 6: CAN-High IN Pin 7: CAN-Low OUT Pin 8: CAN-High OUT Pin 9: CAN Termination A Pin 10:CAN Termination B Pin 11:CAN GND IN Pin 12:CAN GND OUT Pin 13:PE / Case (Protective Earth) iMADC-01 Auxiliary Connector for Outside Air Temperature and optional 􀁄 / 􀁅 Sensor: MIL-C-38999 III, Type D38999/20FA35PN (6 pin) Pin 1: N.C. or +5V Poti supply (for 􀁄 and 􀁅 sensors) Pin 2: OAT Sig (OAT Sensor input) Pin 3: GND for OAT and potis Pin 4: N.C. or 􀁄 (angle of attack) poti output voltage Pin 5: N.C. or 􀁅 (angle of sideslip) poti output voltage Pin 6: Chassis-GND Airdata Interface: Input fittings 1/8 inch for PS and PT Technical Dr

FAQs

What data does iMADC-01 provide for UAV/OPV applications?

It provides static and dynamic pressure and derived air data information, including indicated and true airspeed and pressure altitude.

How does iMADC-01 transmit data to other avionics systems?

It outputs result data via a CANaerospace interface over CANbus, with EMI/EMC protection for aviation use.

What optional capabilities are available on iMADC-01?

It supports optional 4 analog input channels for angle of attack and sideslip measurements, and it provides an OAT auxiliary interface with a user-provided sensor.

Sep 17, 2026

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