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MLX90308LDF Datasheet(PDF) 8 Page - Melexis Microelectronic Systems |
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MLX90308LDF Datasheet(HTML) 8 Page - Melexis Microelectronic Systems |
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8 / 28 page  MLX90308 Programmable Sensor Interface 3901090308 Page 8 Apr/04 Rev 006 Pin Signal Name Description 1,2 I/O1, 2 Bi-directional I/O. Can also be used as input to A/D converter. I/O can be controlled by serial communications or by firmware as alarm inputs or level out. (unconnected when not used) 3 TSTB Test pin for Melexis production testing. (in normal application connected to VDD) 4 FLT Filter pin; allows for connection of a capacitor to the internal analog path. 5 OFC Offset control output. Provides access to the internal programmed offset control voltage for use with external circuitry. (unconnected when not used) 6,7 VBN,VBP Bridge inputs, negative and positive. 8 TMP Temperature sensor input. An external temperature sensor can be used in conjunction with the internal one. The external sensor can provide a temperature reading at the location of the bridge sensor. 9 VDD Regulated supply voltage. Used for internal analog circuitry to ensure accurate and stable signal manipulation. 10 FET Regulator FET gate control. For generating a stable supply for the bridge sensor and internal analog circuitry (generates regulated voltage for VDD). 11 VDD1 Unregulated supply voltage. Used for digital circuitry and to generate FET output. 12 VMO Voltage mode output. Compensated sensor output voltage. 13 CMO Current mode output. Compensated sensor output for current mode operation. 14 CMN Current mode negative rail. Current mode return path. 15 GND Power supply return. 16 COMS Serial communications pin. Bi-directional serial communication signal for reading and writing to the EEPROM. Table 3. Pin Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IO1 IO2 TSTB FLT OFC VBN VBP TMP COMS GND CMN CMO VMO VDD1 FET VDD Figure 2. Pinout (SO16W (LW) Package) |
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