SA4104A / SA4104B
PIN DESCRIPTION
Designation
Pin No.
Description
Analog Ground. This is the reference pin for the current and voltage signal sensing
AGND
16
networks. The supply voltage to this pin should be mid-way between VDD and VSS
.
Positive Supply Voltage. The voltage to this pin should be +2.5V ± 10% with respect to
AGND.
VDD
VSS
8
12
Negative Supply Voltage. The voltage to this pin should be -2.5V ± 10% with respect to
AGND.
Analog Input for Voltage. The maximum current into the voltage sense input IVP should be
set at 16µARMS. The voltage sense input saturates at an input current of ±25µA peak.
IVP
15
Analog Inputs for Current. The maximum current into the current sense inputs IIP/IIN should
be set at 16µARMS. The current sense inputs saturate at an input current of ±25µA peak.
IIP, IIN
2, 1
3
This pin provides the connection for the reference current setting resistor. A 47k resistor
connected to VSS sets the optimum operating conditions.
VREF
Rated Condition Select inputs. These input pins are used for selecting between the different
rated condition configurations. Refer to the Rated Condition Select section.
R0, R1, R2, R3
6, 5, 4, 9
Fast Mode Select input. This three state input is used to select between STANDARD and
FAST mode and provides an extended selection of meter constants. Refer to the Rated
Condition Select and Fast Mode Select sections.
FMS
7
DIRO
LED
14
11
Direction Indicator output. This output indicates the direction of energy flow.
Calibration LED output. Refer to the Rated Condition Select section for the pulse rate output
options.
Motor pulse outputs. These outputs can drive an electro-mechanical counter directly. Refer
to the Rated Condition Select section for the pulse rate output options.
MON, MOP
13, 10
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IIN
IIP
AGND
IVP
ORDERING INFORMATION
Part Number
SA4104ASAR
SA4104BSAR
Device
Package
SA4104A
SA4104B
SOIC16 (RoHS compliant)
SOIC16 (RoHS compliant)
VREF
R2
DIRO
MON
VSS
LED
MOP
R3
R1
R0
FMS
VDD
Figure 3: Pin connections
SPEC-1654 (REV. 4)
29-09-2017
4/18
SAMES [ SAMES ]
