bidirectional current sensor AKM CQ2064 with single 5V supply and ratiometric analog voltage output
Product Overview
The CQ-2064 is an open-type Hall effect current sensor designed for high-accuracy and high-speed AC/DC current sensing. It utilizes a quantum well ultra-thin film InAs Hall sensor and features a compact, space-saving AI-Shell package integrating the Hall sensor, magnetic core, and primary conductor for enhanced reliability. This bidirectional sensor provides electrical isolation between the primary conductor and the sensor signal, operates on a single 5V supply, and offers a ratiometric analog voltage output proportional to the measured current. Key advantages include low variation and temperature drift in sensitivity and offset voltage, low noise output, and a fast response time, making it suitable for applications requiring precise and rapid current monitoring.
Product Attributes
- Brand: Asahi Kasei Microdevices Corporation (AKM)
- Package Type: AI-Shell
- Certifications: RoHS compliant, halogen free
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Units | Notes |
|---|---|---|---|---|---|---|
| Model | CQ-2064 | |||||
| Supply Voltage | VDD | 4.5 | 5.0 | 5.5 | V | Single supply operation |
| Maximum Primary Current (RMS) | IRMSmax | -50 | 50 | A | ||
| Current Consumption | IDD | 9 | mA | No Loads | ||
| Sensitivity | Vh | 39.2 | 40.0 | 40.8 | mV/A | * |
| Offset Voltage | Vof | 2.432 | 2.568 | V | IIN=0A, * | |
| Linear Sensing Range | INS | -54 | 54 | A | ||
| Linearity Error | 1 | %F.S. | * | |||
| Rise Response Time | tr | 1 | s | CL=100pF, typ. | ||
| Fall Response Time | tf | 1 | s | CL=100pF, typ. | ||
| Bandwidth | fT | 400 | kHz | -3dB, CL=100pF | ||
| Output Noise | VNrms | 2.1 | mVrms | max., ** | ||
| Maximum Temperature Drift of Sensitivity | Vh-dmax | 1 | 2 | % | Variation ratio to Vh(Ta=35C) | |
| Maximum Temperature Drift of Offset voltage | Vof-dmax | 14 | mV | Variation from Vof(Ta=35C) | ||
| Ratiometricity Error of Sensitivity | Vh-R | 1 | % | ** | ||
| Ratiometricity Error of Offset Voltage | Vof-R | 1 | % | ** | ||
| Primary Conductor Resistance | R1 | 100 | ||||
| Isolation Voltage | VINS | 2.5 | kV | AC 50/60Hz, 60s, ** | ||
| Isolation Resistance | RINS | 500 | M | DC 1kV, ** | ||
| Operating Ambient Temperature | Ta | -40 | 90 | C | ||
| Storage Temperature | Tstg | -40 | 125 | C | Absolute Maximum Ratings | |
| Package Dimensions | Refer to Figure 9 | mm | Tolerances 0.1mm without mention |
* These parameters can drift over the lifetime of the product.
** These characteristics are guaranteed by design.
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