ES51926
3000 Counts Smart DMM
Pin Assignment
70
65
60
55
75
SEG12
SEG13
SEG14
SEG15
CLAMP
VON
AON
FA
FUA
FC3
FC2
FC1
HOLD
SEL
VAHZ
RANGE
MAX/MIN
BKLIT
EFEN
BP1
BP2
BP3
BP4
ANNUNC
BKOUT
50
10
15
20
Pin Description
Pin No
1
2
Symbol
AGND
LBAT
3
4
5
6
7
8
9
10
Ver 2.9
CREF+
CREF-
CINT
CAZ
BUFF
RAZ
IVSH
IVSL
AGND
LBAT
CREF+
CREF-
CINT
CAZ
BUFF
RAZ
IVSH
IVSL
OVX
OVH
OVSG
OR1
VR5
VR4
VR3
VR2
TEST5
ACVL
ACVH
ADI
ADO
OHMC4
OHMC3
Type
P
I
Description
Analog ground.
Low battery configuration. If 3V battery is used, connect it to DGND.
The default low-battery threshold voltage is –2.3V. If 9V battery is
used, the low battery enunciator is displayed when the voltage of
this pin is less than VRH (-1.2V)
Positive connection for reference capacitor.
Negative connection for reference capacitor.
Integrator output. Connect to integral capacitor
Auto-zero capacitor connection.
Buffer output pin. Connect to integral resistor
Buffer output pin in high-speed mode. Connect to high-speed integral
resistor.
High current measurement input.
Low current measurement input
2
10/06/25
I/O
I/O
O
I
O
O
I
I
25
5
SEG11
SEG10
NC
NC
SEG09
SEG08
SEG07
SEG06
SEG05
SEG04
SEG03
SEG02
SEG01
OSC2
OSC1
BKSEL
CESEL
C+
C-
V-
V-
V+
V+
DGND
AGND
80
45
85
Cyrustek.
com.tw
40
90
ES51926
35
95
30
100
NC
NC
NC
NC
NC
ACEN
BUZOUT
APOSEL
BUZIN
SLEEP
R1K
R9K-
CA+
CA-
NC
VR1
VA-
VA+
ADP
SGND
VR
VRH
NC
OHMC1
OHMC2
CYRUSTEK [ Cyrustek corporation ]
