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ES218 数据表(PDF) 3 Page - Cyrustek corporation |
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ES218 数据表(HTML) 3 Page - Cyrustek corporation |
3 / 26 page V 1.5 3 2015/12/11 ES218 2000 Counts Manual DMM Pin Description Pin No Symbol Type Description 1-3 NC - Not Connected. 4 CINT O High-resolution integrator output. Connect to integrate capacitor. (Metalized Polypropylene Film Capacitor type is recommended) 5 CAZ O High-resolution auto-zero capacitor connection. 6 RAZ O Buffer output pin in AZ and ZI phase. 7 CREFP O Positive connection for reference capacitor of A/D. 8 CREFN O Negative connection for reference capacitor of A/D. 9 VRH O Output of band-gap voltage reference. Typically –1.23V. 10 VR I Reference input voltage connection. Typically –400mV. 11 VR_ADP I Reference input voltage connection. Typically –400 mV. 12 OHMC3 O Filter capacitor connection for resistance mode. 13 OHMC2 O Filter capacitor connection for resistance mode. 14 OHMC1 O Filter capacitor connection for resistance mode. 15 OR1 O Reference resistor connection for 200.0 Ω range 16 VR5 O Voltage measurement ÷10000 attenuator(1000V) 17 VR4 O Voltage measurement ÷1000 attenuator(200.0V) 18 VR3 O Voltage measurement ÷100 attenuator(20.00V) 19 VR2 O Voltage measurement ÷10 attenuator(2.000V) 20 OVSG O Sense low voltage for resistance/voltage measurement 21 VR1 I Voltage measurement Input. Connect to an accurate 10MΩ resistor. 22 mVin I Measurement input in 200.0mV mode. 23 OVX I Sense input for resistance / capacitance measurement. 24 OVH O Output connection for resistance measurement. 25 NC - Not Connected. 26 SGND I Signal Ground input. 27 ACVL I Rectified signal low input in ACV/ACA mode. Connect to negative output of external AC to DC converter. 28 ACVH I Rectified signal high input in ACV/ACA mode. Connect to positive output of external AC to DC converter. 29 ADI I Negative input of internal AC to DC OP Amp. 30 ADO O Output of internal AC to DC OP Amp. 31 TEST5 O Buffer output of OVSG. 32 CAP O Positive auto-zero capacitor connection for capacitor measurement. 33 CAN O Negative auto-zero capacitor connection for capacitor measurement. 34 R10K O Connect to a precise 10 KΩ resister for capacitor measurement. 35 R1K O Connect to a precise 1KΩ resister for capacitor measurement. 36 NC - No connection 37 FREQ I Frequency counter input, offset V-/2 internally by the chip. 38 ALARM O HV signal detection in Voltage mode and EF mode indication output. |
类似零件编号 - ES218 |
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类似说明 - ES218 |
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