CSA-1V
August 2004
Page 1 of 5
CSA-1V
Current Sensor
Features:
•
Sensitive to a magnetic field parallel to
the chip surface
•
Very high sensitivity
•
Linear output voltage proportional to a
magnetic field
•
Wide-band: DC to 100kHz
•
Very low offset and offset-drift
•
Very low noise
•
Isolated from current conductor
•
Surface mount SOIC-8 package
Applications:
•
AC and/or DC current measurement
•
Wide-Band Magnetic Field
Measurement
•
Battery Chargers
•
AC-DC Converters
•
Motor Control
General Description
The CSA-1V is a single-axis integrated magnetic field sensor based on the Hall effect. The circuit is
fabricated using a conventional CMOS technology with an additional ferromagnetic layer. The
ferromagnetic layer is used as a magnetic flux concentrator providing a high magnetic gain. Therefore,
the circuit features very high magnetic sensitivity, low offset, and low noise.
The CSA-1V is packaged in a standard SOIC-8 full plastic package. This package provides:
•
highest isolation for applications with the current conductor on the PCB (up to 600V)
•
highest sensitivity for applications with the current lead above the chip.
Package:
SOIC-8
Pin Out:
1 A_OUT, analog sensor output
2 VDD pos. supply voltage
3 Not connected
4 PV, programming voltage
1)
5 GND, supply common
6 PD, programming data
1)
7 PC, programming clock
1)
8 CO_OUT, common output
B
Note 1: Used for factory programming
Sentron AG
• Baarerstrasse 73 • 6300 Zug • Switzerland • Tel: +41 41 711 2170 • Fax: +41 41 711 2188
www.sentron.ch
• sales@sentron.ch •
for North America: GMW Associates
• Tel: +1 (650) 802-8292 • Fax: +1 (650) 802-8298 • sales@gmw.com