Maxim MAX1402, Руководство пользователя, Страница: 7 / 12

Evaluate: MAX1400/MAX1402
MAX1402 Evaluation Kit/Evaluation System
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Table 3. Default Jumper Settings
* Default trace on top layer of PCB.
JUMPER STATE FUNCTION
JU1 Closed* Use CalGain inputs for gain calibration ( = REFIN+)
JU2 Closed* Use CalGain inputs for gain calibration (CALGAIN- = REFIN-)
JU3 Closed* Use CalOff inputs for offset calibration ( = GND)
JU4 Closed* Use CalOff inputs for offset calibration (CALOFF- = GND)
JU5 Closed* Use on-board reference U2 (REFIN- = GND)
JU6 Open
Disconnects pin 5 from pin 7
MAX1402: pin 5 = digital input DS1, pin 7 = current source
MAX1400: insert filter between mux and A/D
JU7 Open
Disconnects pin 6 from pin 8
MAX1402: pin 6 = digital input DS0, pin 8 = current source
MAX1400: insert filter between mux and A/D
JU8 Closed* Use on-board reference U2 (REFIN+ = 2.5V)
* Default trace on top layer of PCB.
JUMPER STATE FUNCTION
JU1 Closed* Use CalGain inputs for gain calibration ( = REFIN+)
JU1 Open Use CalGain inputs as general purpose signal inputs
JU2 Closed* Use CalGain inputs for gain calibration (CALGAIN- = REFIN-)
JU2 Open Use CalGain inputs as general purpose signal inputs
JU3 Closed* Use CalOff inputs for offset calibration ( = GND)
JU3 Open Use CalOff inputs as general purpose signal inputs
JU4 Closed* Use CalOff inputs for offset calibration (CALOFF- = GND)
JU4 Open Use CalOff inputs as general purpose signal inputs
JU5 Closed* Use on-board reference U2 (REFIN- = GND)
JU5 Open REFIN+ and REFIN- must be driven by an external reference
JU6 Closed
Connects pin 5 to pin 7
MAX1402: pin 5 = digital input DS1, pin 7 = current source
MAX1400: normal operation
JU6 Open
Disconnects pin 5 from pin 7
MAX1402: pin 5 = digital input DS1, pin 7 = current source
MAX1400: insert filter between mux and A/D
JU7 Closed
Connects pin 6 to pin 8
MAX1402: pin 6 = digital input DS0, pin 8 = current source
MAX1400: normal operation
JU7 Open
Disconnects pin 6 from pin 8
MAX1402: pin 6 = digital input DS0, pin 8 = current source
MAX1400: insert filter between mux and A/D
JU8 Closed* Use on-board reference U2 (REFIN+ = 2.5V)
JU8 Open REFIN+ and REFIN- must be driven by an external reference
Table 2. Jumper Functions