ES51966
4 3/4 and 5 3/4 A/D (Peak &Cap)
Pin configuration
QFP-64pin
L
B
A
T VV
T + +
A
G
N
D
A
G
N
D
60
O
S
D
C
G
N V V4
D- - M
S
C
L
K
S
T
A
TVE
UC O
S C C
55
50
CAZ
RAZ
BUF
BUFX10
Cref-
Cref+
NC
IVSH
IVSL
TEST5
ACVL
ACVH
ADI
ADO
NC
OVX
OVH
NC
1
CINT
5
45
10
40
15
35
20
25
30
OSC2
OSC1
BUZOUT
BUZIN
NC
FREQ
NC
CA-
CA+
R1K
R9K
CCMP
NC
VR
VRH
NC
PMAX
PMIN
NC
OO V V V V N S N VN V N
VR R R R R C G C R C 4 C
S 1 5 4 3 2
N 1
0
0
G
D
m
ES51966
Pin Description
Pin No.
Symbol
Type Description
O
O
O
O
O
I/O
I/O
I
I
I/O
O
O
I
O
Auto-zero capacitor connection
Auto-zero resistance connection
Integration capacitor connection
Integration resistor connection output
Integration resistor connection output
Negative connection for reference capacitor
Positive connection for reference capacito
High current measurement input
Low current measurement input
Test Pin
Negative output of AC to DC converter
Positive output of AC to DC converter.
Negative input of internal AC to DC OpAmp
Output of internal AC to DC OpAmp.
1
CAZ
2
RAZ
3
CINT
4
BUF
5
BUFX10
6
Cref-
7
Cref+
9
IVSH
10
IVSL
11
TEST5
12
ACVL
13
ACVH
14
ADI
15
ADO
Continued on next page
3
06/04/25
CYRUSTEK [ Cyrustek corporation ]
