ADAF1080
RECOMMENDED FOR NEW DESIGNSIntegrated 8 mT AMR Magnetic Field Sensor and Signal Conditioner
- Part Models
- 2
- 1ku List Price
- Starting From $3.60
Part Details
- Single-axis, high-precision, AMR magnetic field sensor
- Maximum magnetic field strength on the sense field axis for linear operation up to ±8 mT
- Output noise (noise density magnetic field equivalent): 6 nT/√Hz
- >100 dB dynamic range
- Flip coil to calibrate electrical offset over life and temperature
- Temperature compensated output
- Integrated precision instrumentation amplifier
- Up to 2.2 MHz bandwidth at gain = 20
- Programmable chopping for precision measurements
- Synchronization features for wide bandwidth applications
- Ratiometric output capability to improve PSRR
- Programmable gain for 1.8 V to 5 V ADC range
- Analog output optimized to drive ADC
- Ease of use features
- Wide and user-selectable output common-mode voltage
- Integrated electrical offset cancellation
- Integrated diagnostics
- Temperature range: –40°C to +125°C
- Supply voltage range: 4.5 V to 5.5 V
- Available in a 20-Lead LFCSP with an exposed pad
The ADAF1080 is a single-axis, high-precision, magnetic-field sensor with integrated signal conditioning. The device incorporates an anisotropic magnetoresistive (AMR) sensor with an integrated signal- conditioning amplifier, electrical-offset cancellation capabilities, integrated diagnostics, and an analog-to-digital converter (ADC) driver for precise measurement of magnetic fields up to ±8 mT.
The ADAF1080 consists of two die within one package, an AMR sensor, and an application-specific IC (ASIC). The ADAF1080 provides a precision amplified output signal that is proportional to the magnetic field strength along the sensitive axis of the sensor. The output voltage is ratiometric to the supply voltage with a common mode of half the voltage set on the external VSET input pin.
The magnetic orientation of the sensor can be defined through the use of an integrated flip coil that can be used for electrical-offset cancellation in the presence of a constant magnetic field. Diagnostics can be carried out through the use of an integrated diagnostic coil, which can measure the gain of the system or detect a magnetic saturation event.
The ADAF1080 is available in a 20-lead LFCSP with an exposed pad.
APPLICATIONS
- Isolated and contactless current sensing
- Handheld current clamp meters
- Motor control current sense
- AC and DC power applications
- Precision magnetic field sensing applications
- Precision linear encoders
- Low-noise, precision magnetometers
Documentation
Data Sheet 1
User Guide 2
Solutions Bulletin & Brochure 1
Webcast 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADAF1080BCPZ | LFCSP:LEADFRM CHIP SCALE | ||
| ADAF1080BCPZ-R7 | LFCSP:LEADFRM CHIP SCALE |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Evaluating the ADAF1080 Integrated ±8 mT AMR Magnetic Field Sensor