linear position sensor HUAXIN VCP1611 with large measurement gap and easy surface mounting package
Product Overview
The VCP1611 is a high-precision linear position sensor utilizing Anisotropic Magnetoresistance (AMR) technology, offering superior positional accuracy compared to traditional Hall sensors. Its optimized design and packaging enable reliable and accurate operation in harsh environments with oil, dust, and high temperatures. The VCP1611 is designed to work with magnetic scales, with the sensor spanning one or more magnetic poles of 2.0mm pitch, eliminating positional errors caused by magnetic pole imperfections and further enhancing measurement accuracy. It tolerates significant variations in the sensor-to-magnet gap, simplifying installation and testing. The VCP1611 employs a DFN package for easy automated surface mounting.
Product Features
Key Technology
- Anisotropic Magnetoresistance (AMR) technology
- Linear position measurement
Operating Characteristics
- Contactless measurement
- Large measurement gap
- High resolution and measurement accuracy, up to 5~10 um accuracy
- High environmental tolerance, including harsh environments up to 150
- DFN package for easy surface mounting
Application Fields
- Robotics: Precise motion control for robotic arms.
- Machine Tool Industry: Motion control for large machine tools and rotary tables.
- Industrial Control: Precision control through linear position measurement in engineering machinery, elevators, injection molding machines, etc.
- Medical Field: Control for infusion pumps, prosthetic limbs, and medical equipment.
Technical Specifications
| Parameter | Symbol | Conditions | Min | Typical | Max | Unit |
|---|---|---|---|---|---|---|
| Absolute Maximum Ratings | ||||||
| Rated Voltage | VDD,max | 10 | V | |||
| Rated Current | IDD,max | 10 | mA | |||
| Operating Temperature | TA | -40 | +150 | degree | ||
| Storage Temperature | TSTG | -50 | +150 | degree | ||
| Performance Parameters | ||||||
| Operating Voltage | VDD | 5 | V | |||
| Magnetic Pole Pitch | p | 2.0 | mm | |||
| Resistance | Rs | 25 | 1.2 | 1.6 | 2.2 | kOhm |
| Signal Amplitude | Vamp | 25 | 18 | 22 | 26 | mV/V |
| Zero Offset Drift | Voff | 25 | -1 | 0 | +1 | mV |
| Resistance Temperature Coefficient | TCR | -40~+150 | 2800 | ppm/K | ||
| Signal Temperature Coefficient | TCS | -40~+150 | -3300 | ppm/K | ||
| Zero Offset Temperature Coefficient | TCO | -40~+150 | 100 | ppm/K | ||
| Sensor-to-Magnet Gap | D | VCP1611 | 2.0 | mm |
Package Configuration
Pinout Diagram
Pin Configuration:
| Pin | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VCP1611 | VDD2 | -V2 | -V1 | GND | VDD1 | +V1 | +V2 | NC | NC | NC | NC | NC |
Package Outline
Package Type
DFN (Dual Flat No-lead Package)
Package Dimensions
6 mm (Length) * 2 mm (Width) * 0.75 mm (Height)
External Connection
The VCP1611 linear position sensor can be connected using a common operational amplifier for differential amplification. A 10kOhm resistor provides high input impedance, while 470kOhm resistors and a 220 pF capacitor are used to set the amplification gain and filter out noise. The analog voltage output from the operational amplifier can be fed into an Analog-to-Digital Converter (ADC) or a microcontroller. Using a 10-bit or higher resolution ADC is recommended for further signal processing.
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