Pin Description
Pin No
Symbol
V+
Type
O
O
Description
Output of on-chip DC-DC converter.
Output of on-chip DC-DC converter.
1
2
3
4
5
6
7
8
V+
CREF+
CREF-
CINT
CAZ
BUFF
RAZ
I/O Positive connection for reference capacitor.
I/O Negative connection for reference capacitor.
O
I
O
O
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.
9
IVSH
IVSL
OVX
OVH
OVSG
OR1
VR5
VR4
VR3
VR2
I
I
I
I
I
O
O
O
O
O
Current measurement input for 1100μA, 110mA and 11A modes.
Current measurement input for 110μA, 11mA.
Input high voltage for resistance measurement
Output connection for resistance measurement
Sense low voltage for resistance measurement
Reference resistor connection for 110.00Ω range
Voltage measurement ÷10000 attenuator(1000.0V)
Voltage measurement ÷1000 attenuator(110.00V)
Voltage measurement ÷100 attenuator(11.000V)
Voltage measurement ÷10 attenuator(1.1000V)
10
11
12
13
14
15
16
17
18
19
20
TEST 5
ACVL
I/O Test pin
O
DC signal low input in ACV/ACA mode. Connect to negative output
of external AC to DC converter.
21
ACVH
O
DC signal high input in ACV/ACA mode. Connect to positive output o
external AC to DC converter.
22
23
24
25
26
27
28
29
30
31
ADI
ADO
ADOHZ
OPO
OPIN+
OPIN-
PWD
VRH
I
O
I
O
I
I
I
O
I
I
Negative input of internal AC to DC OP Amp.
Output of internal AC to DC OP Amp.
Frequency input under voltage/current mode, offset to AGND.
Output of internal independent OP Amp.
Positive input terminal of on-chip independent OP Amp.
Negative input terminal of on-chip independent OP Amp.
Power-down enable for on-chip independent OP Amp.
Output of band-gap voltage reference. Typically –1.23V
Reference input voltage connection. Typically –100mV
For ADP mode. De-integrating voltage positive input. The input
should be higher than VA-.
VR
VA+
32
VA-
I
For ADP mode. De-integrating voltage negative input. The input
should be lower than VA+.
33
34
35
36
ADP
SGND
VR1
I
G
I
Measurement input in ADP mode.
Signal Ground.
Measurement input.
In capacitance mode, a compensation capacitor is connected.
In temperature mode, it is used to control decimal point.
In µA or mA modes, it is used to control the ‘µ’ or ‘m’ sign.
VBAR
I
37
38
39
40
41
42
43
NC
NC
R9K
R1K
CA-
O
O
Connect to a precise 9KΩ resister for capacitor measurement.
Connect to a precise 1KΩ resister for capacitor measurement.
I/O Negative auto-zero capacitor connection for capacitor measurement
I/O Positive auto-zero capacitor connection for capacitor measurement
O
CA+
OHMC1
Filter capacitor connection for resistance mode.
v1.2
3
11/09/06
CYRUSTEK [ Cyrustek corporation ]
