Sentron CSA-1VG-SO Linear Hall Magnetic IC
The Sentron CSA-1VG is a single-axis Hall-effect magnetic field sensor IC that has been optimized for AC and DC current measurement applications. The current sensor is fabricated using conventional CMOS technology with an additional ferromagnetic layer. The ferromagnetic layer is used as an Integrated Magnetic Concentrator (IMC) to provide a higher magnetic gain than would be normally possible. Therefore, the circuit boasts very high magnetic sensitivity with low offset and noise.
In a typical application, the current sensor is mounted onto a printed circuit board over the trace that is carrying the current to be measured. Mounting the current sensor in this way offers high voltage isolation from the current carrying conductor. Other geometries are possible for measuring current in cables or bus bars. Please see the Engineering Kits.
The CSA-1VG-SO is RoHS compliant.
Features
- Sensitive to a magnetic field parallel to the chip surface
- Very high sensitivity
- Linear output voltage proportional to a magnetic field
- Wide Bandwidth: DC to 100kHz
- Very low offset and drift
- Very low noise
- Small SOIC-8 package
- Low cost
- Single +5V supply
- 2.5V ±2.0Vfs signal, dc, ac & pulse
- <6µs response time
Applications
- Current measurement
- Wide band magnetic field measurement
- Over-current detection
- Monitoring current in battery chargers
- Input for zero crossing detectors
- Fault detection
- Replacement for resistive shunts
Modules utilizing the CSA-1VG
| The below products are functionally similar | |
| Manufacturer Model | Sentron Model |
|---|---|
| LEM FHS 40-P/SP600 | CSA-1VG-SO |
| Melexis MLX91205 | CSA-1VG-SO |
Tech Support
- Automated Data Acquisition for a Prognostics and Diagnostics Health Monitoring System
- using the CSA-1V,Gregory Miitchell et. al., US Army Research Laboratory July 2008
- Measuring Current with IMC Hall Effect Technology November 2003
For further information please contact Lou Law for information on this subject.
Documentation for Reference Only – Current sensors using the CSA – 1VG
- AN_116 – Low currents to 2A RMS – PCB
- AN_120 – Medium currents to 8A RMS – PCB trace
- AN_118 – Medium currents to 8A RMS – PCB jumper
- AN_128 – Medium currents to 8A RMS – Dual devices, High Noise Immunity
- AN_122 – Medium currents to 15A RMS – High Sensitivity Current Sensor
- AN_126 – Higher currents to 20A RMS – Current Sensing PCB with multi layer traces
- AN_124 – Higher currents to 20A RMS – Current Sensing High Voltage Isolation Current Sensor
- AN_123 – Higher currents to 25A RMS – PCB with mini bus bar
- AN_119 – Current sensing in a wire
- AN_119B – Clamp On Current Sensor – PCB
- AN_121 – Current sensing on a bus bar
Discontinued Products based on CSA-1VG-SO
Accessories
Engineering Kits
CSA-1V Application Engineering Kit - AN_115KIT
- Low current - up to 1A RMS
- Bi-directional
- High dielectric isolation
This kit is ideal for evaluating low current and high voltage isolation applications. The sensitivity depends on the number of turns of magnet wire on the bobbin (approx 30mV/amp-turn).
The kit includes:
- PCB assembly with CSA-1V-SO
(PCB size: 12.7mm x 19.0mm x 3.6mm (excluding bobbin) - Nylon bobbin
- Mating connector
- Extra CSA-1V-SO Sample
- Instruction Sheet - AN_115KIT
Also see the Ametes CS Series Current Sensors with sensitivites of 10V/A, 1V/A and 0.25V/A.
Pricing
| Part No. | Description | Qty | Price | In Stock |
|---|---|---|---|---|
| CSA-1VG-SO | Linear 1-Axis Hall-IC, High Sensitivity, SOIC-8, std programming. “Lead free” (RoHS Compliant) 1,3 | 10+ 50+ 100+ 250+ 500+ 1000+ 3000+ 6000+ ≥9000 | $4.95 $3.87 $3.17 $2.64 $2.44 $2.26 $1.90 $1.87 Please Ask | |
| CSA-1V-SO | Linear 1-Axis Hall-IC, High Sensitivity, SOIC-8, std programming. “Leaded” (Not RoHS Compliant)1, 2, 6 | See Special Sales Offer for details. |
Engineering Kits for the CSA-1V
| Part No. | Description | Qty | Price | In Stock |
|---|---|---|---|---|
| AN_115KIT | CSA-1V Application Engineering Kit, Current Sensing on a bobbin up to 1A RMS7. | $35 | |
The below products are functionally similar
| Manufacturer Model | Sentron Model |
|---|---|
| LEM FHS 40-P/SP600 | CSA-1VG-SO and CSA-1V-SO |
| Melexis MLX91205 | CSA-1VG-SO and CSA-1V-SO |
Notes
- Standard factory programming as per specifications.
- CSA-1V-SO is available in complete reels only, 3000 pieces/reel.
- CSA-1VG-SO minimum purchase quantity is 10 pieces.
- IC Quantities less than 3000 are sold in cut tape, quantities of 3000 and higher for ICs are supplied in 13″ tape reels (3000 pieces per reel).
Terms and Conditions
Terms and Conditions:
Prices are expressed in U.S. Dollars, FCA San Carlos, California.
Prices are subject to change without notice.
Quantity discounts are available as shown above.
Payment:
Visa, MasterCard, Amex, or Net 30 days (subject to credit acceptance).
Delivery:
Small quantities typically from stock. Larger quantities up to 90 days.
All orders are Non-Cancelable and Non-Refundable.