ES51955(5000counts)
Dual Display/Inrush
Pin Description
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25-28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
v2.3
Symbol
ADO_A
ADI_A
TEST5_A
ACVL_A
ACVH_A
CSH+
CSH-
VA-
IVSL
IVSH
ADP
RAZ_A
BUF_A
CAZ_A
CINT_A
CLN_A
CLP_A
VRH
CLP_V
CLN_V
CINT_V
CAZ_V
BUF_V
RAZ
OHMC1-4
VR_A
DAC_AO
VR
DAC_VO
OR1
VR5
VR4
VR3
VR2
OVSG
VR1
ACVL_V
ACVH_V
ADI_V
ADO_V
TEST5_V
SGND
CA-
CA+
R9K
R1K
OVX
OVH
OVH1
Type
O
I
O
O
O
I/O
I/O
I
I
I
I
O
O
O
O
I/O
I/O
O
I/O
I/O
O
O
O
O
O
I
O
I
O
O
O
O
O
O
O
I
O
O
I
O
O
G
I/O
I/O
O
O
I
O
O
Description
Output of internal AC to DC OP Amp for ACA mode.
Negative input of internal AC to DC OP Amp for ACA mode.
Buffer output of SGND for ACA mode
DC signal low input in ACA mode. Connect to negative output
of external AC to DC converter.
DC signal high input in ACA mode. Connect to positive output of
external AC to DC converter.
Cap for duty-cycle and inrush mode
Cap for duty-cycle and inrush mode
For ADP mode. De-integrating voltage negative input
Current measurement input for higher range.
Current measurement input for lower range.
Measurement input in ADP mode. (Current/Temperature/NCV mode)
Buffer output pin in AZ and ZI phase for ADC_A.
Buffer output pin for ADC_A. Connect to integral resistor
Auto-zero capacitor connection for ADC_A.
Integrator output for ADC_A. Connect to integral capacitor.
Negative connection for reference capacitor of ADC_A.
Positive connection for reference capacitor of ADC_A.
Output of band-gap voltage reference. Typically –1.23V
Positive connection for reference capacitor of ADC_V.
Negative connection for reference capacitor of ADC_V.
Integrator output for ADC_V. Connect to integral capacitor.
Auto-zero capacitor connection for ADC_V.
Buffer output pin for ADC_V. Connect to integral resistor
Buffer output pin in AZ and ZI phase for ADC_V.
Filter capacitor connection1-4 for resistance mode.
Reference input voltage in current mode or ADP. Typically –400mV
DAC output for current mode or ADP input mode
Reference input voltage in voltage mode. Typically –400mV
DAC output for voltage mode
Reference resistor connection for 500.00Ω range
Voltage measurement ÷10000 attenuator(1000V)
Voltage measurement ÷1000 attenuator(500.0V)
Voltage measurement ÷100 attenuator(50.00V)
Voltage measurement ÷10 attenuator(5.000V)
Sense low voltage for resistance/voltage measurement
Measurement Input. Connect to a precise 10MΩ resistor.
DC signal low input in ACV mode. Connect to negative output
of external AC to DC converter.
DC signal high input in ACV mode. Connect to positive output of
external AC to DC converter.
Negative input of internal AC to DC OP Amp for ACV mode.
Output of internal AC to DC OP Amp for ACV mode.
Buffer output of OVSG for ACV mode
Signal Ground.
Negative auto-zero capacitor connection for capacitor measurement
Positive auto-zero capacitor connection for capacitor measurement
Connect to a precise 9KΩ resister for capacitor measurement.
Connect to a precise 1KΩ resister for capacitor measurement.
Sense input for resistance/capacitance measurement
Output connection for resistance measurement
Output connection for resistance measurement (Optional)
3
10/06/25
CYRUSTEK [ Cyrustek corporation ]
