ES51964(6600counts)
Dual Display
Pin Description
Pin No
1
Symbol
V+
Type
O
Description
Output of on-chip DC-DC converter.
2
3
4
5
DGND
AGND
AGND
CH+
P/G Digital ground.
P/G Analog ground.
P/G Analog ground.
IO Positive connection for reference capacitor of high-speed A/D.
IO Negative connection for reference capacitor of high-speed A/D.
6
CH-
7
8
9
CIH
O
O
O
High-speed integrator output. Connect to integral capacitor.
High-speed buffer output pin. Connect to integral resistor.
High-speed auto-zero capacitor connection.
BUFFH
CAZH
CL+
CL-
CIL
CAZL
BUFFL
RAZ
IVSH
IVSL
OVX
OVH
OVSG
OR1
VR5
VR4
VR3
VR2
TEST5
ACVL
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
IO Positive connection for reference capacitor of high-resolution A/D.
IO Negative connection for reference capacitor of high- resolution A/D.
O
O
O
O
I
High-resolution integrator output. Connect to integral capacitor.
High-resolution auto-zero capacitor connection.
High-resolution Buffer output pin. Connect to integral resistor
Buffer output pin in AZ and ZI phase.
Current measurement input for 6600μA, 660mA and 66A modes.
Current measurement input for 660μA, 66mA.
Sense input for resistance/capacitance measurement
Output connection for resistance measurement
Sense low voltage for resistance/voltage measurement
Reference resistor connection for 660.00Ω range
Voltage measurement ÷10000 attenuator(1000V)
Voltage measurement ÷1000 attenuator(660.0V)
Voltage measurement ÷100 attenuator(66.00V)
Voltage measurement ÷10 attenuator(6.600V)
Buffer output of OVSG
I
I
O
O
O
O
O
O
O
O
O
DC signal low input in ACV/ACA mode. Connect to negative output
of external AC to DC converter.
28
ACVH
O
DC signal high input in ACV/ACA mode. Connect to positive output
of external AC to DC converter.
29
30
31
32
33
34
35
36
ADI
ADO
OHMC3
OHMC2
OHMC1
VRH
I
Negative input of internal AC to DC OP Amp.
Output of internal AC to DC OP Amp.
O
O
O
O
O
I
Filter capacitor connection for resistance mode.
Filter capacitor connection for resistance mode.
Filter capacitor connection for resistance mode.
Output of band-gap voltage reference. Typically –1.23V
Reference input voltage connection. Typically –400mV
For ADP mode. De-integrating voltage positive input. The input
should be higher than VA-.
VR
VA+
I
37
VA-
I
For ADP mode. De-integrating voltage negative input. The input
should be lower than VA+.
38
39
40
41
42
43
44
45
46
47
48
49
SGND
ADP
VR1
CA-
CA+
R9K
R1K
NC
G
I
I
Signal Ground.
Measurement input in ADP mode.
Measurement Input. Connect to a precise 10MΩ resistor.
IO Negative auto-zero capacitor connection for capacitor measurement
IO Positive auto-zero capacitor connection for capacitor measurement
O
O
-
Connect to a precise 9KΩ resister for capacitor measurement.
Connect to a precise 1KΩ resister for capacitor measurement.
NC
-
CSH+
CSH-
LPFC1
IO Cap for duty-cycle mode
IO Cap for duty-cycle mode
O
Capacitor C1 connection for internal low-pass filter
v2.5
3
09/04/14
CYRUSTEK [ Cyrustek corporation ]
