FEATURES

hour meters

sames

sames

Single Phase Bidirectional Dual Element

Power/Energy Metering IC with Pulse Output

SA2007H

1/10

SPEC-0116 (REV. 1)

15-01-01

DESCRIPTION

The SAMES SA2007H is a single phase bidirectional dual

element energy metering integrated circuit. It provides a

simple analog interface to a micro-controller and is specifically

designed for meter manufacturers to have full control over the

meter functionality.

The SA2007H has two current sensor inputs. The power

consumption on both inputs are continuously measured. A

typical application would be to monitor Live and Neutral lines

for tamper detection.

For each current sensor input the SA2007H integrated circuit

has a corresponding pulse output, each generating a pulse

rate with a frequency proportional to the power consumption

measured on the specific channel.

The SA2007H performs active power measurement and takes

the power factor into account. Energy consumption can be

determined by the power measurement being integrated over

time. The energy flow direction information is also available for

each channel.

Figure 1: Block diagram

OUTPUT

CONTROL

POWER TO

PULSE RATE

POWER TO

PULSE RATE

CURRENT

CHANNEL 1

VOLTAGE

CURRENT

CHANNEL 2

VOLTAGE

REF.

OSC

TIMING

IIP1

IIN1

IVP

AGND

IIP2

IIN2

P1

D1

P2

D2

RP

OMODE

INT

TEST

TCLK

VREF

V

DD

V

SS

X

X

FMO

POWER 2

POWER 1

dr-01623

PRELIMINARY