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ES51988 Scheda tecnica(PDF) 3 Page - Cyrustek corporation |
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ES51988 Scheda tecnica(HTML) 3 Page - Cyrustek corporation |
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3 / 22 page  3 92年8月4日 ES51988 3 3/4 AUTO REL/MAX/MIN Pin Description Pin No. Symbol Description 1 V+ Positive supply voltage,output of on-chip DC-DC converter. 2 V+ Positive supply voltage,output of on-chip DC-DC converter. 3 CH+ High speed positive connection for reference capacitor. 4 CH- High speed negative connection for reference capacitor. 5 CIH High speed integrator output. Connected to integration capacitor. 6 BUFH Integration resistor connection for high speed buffer output. 7 CAZH High speed auto-zero capacitor connection 8 CL+ High resolution positive connection for reference capacitor. 9 CL- High resolution negative connection for reference capacitor. 10 CIL High resolution integrator output. Connected to integration capacitor. 11 CAZL High resolution auto-zero capacitor connection. 12 BUFL Integration resistor connection for high resolution buffer output. 13 IVSH High level current measurement input. 14 IVSL Low level current measurement input 15 OVX Input high voltage for resistance measurement. 16 OVH Output connection for resistance measurement. 17 OVSG Sense low voltage for resistance measurement. 18 OR1 Reference resistor connection for 399.9Ωrange. 19 VR5 Voltage measurement ÷ 10000 attenuator (3999V). 20 VR4 Voltage measurement ÷ 1000 attenuator (399.9V). 21 VR3 Voltage measurement ÷ 100 attenuator (39.99V). 22 VR2 Voltage measurement ÷ 10 attenuator (3.999V). 23 TEST5 Test pin 5. 24 ACVL Negative output of AC to DC converter. 25 ACVH Positive output of AC to DC converter. 26 ADI Negative input of internal AC to DC OP AMP. 27 ADO Output of internal AC to DC OP AMP. 28 NC 29 NC 30 NC 31 SGND Signal ground. 32 VR1 Unknown voltage input . 33 NC 34 VR Reference input voltage connection. Typically -100 mV. 35 VRH Output of band-gap voltage reference. Typically -1.2 V. 36 ACVR Optional pin. When connected to -3V,ACV without 400mV range. 37 NC |
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