Hangkai HKVA-1122 Single-Axis MEMS Accelerometer IC, 5–2000g
Hangkai HKVA-1122 Single-Axis MEMS Accelerometer IC, 5–2000g
Hangkai Microelectronic
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The Hangkai Microelectronic HKVA-1122 is a single-axis MEMS accelerometer IC for acceleration, vibration and shock measurement in an embedded design. Choose a nominal acceleration range from 5g to 2000g. Here g is acceleration relative to gravity, not the chip weight. This is a board-level component, not a complete plug-and-play measurement instrument or evaluation board.
Range Selection
The nine retained source options are 5g, 10g, 20g, 50g, 100g, 200g, 400g, 1000g and 2000g. The labels identify the range but do not explicitly identify axis orientation or amplification configuration. The supplier reference sheets below show particular Y-axis, Z-axis and high-range versions; confirm the exact suffix, sensitive axis and output arrangement for the selected component.
MEMS Architecture
Supplier materials describe piezoresistive single-axis sensing, a MEMS sensitive element, conditioning electronics and an LCC package. The source describes a bulk-silicon SOI sensing structure and Wheatstone bridge, with ASIC detection, amplification and output circuitry for conditioned versions. High sensitivity, low coupling, shock resistance, good linearity and high-frequency response are supplier-described characteristics rather than independent certification.
HKVA-1122 Y-Series Reference
The Y-series sheet is identified by a +Y sensitive-direction arrow. Its range-specific source values are:
| Parameter | 5-Y | 10-Y | 20-Y | 50-Y |
|---|---|---|---|---|
| Range (g) | ±5 | ±10 | ±20 | ±50 |
| Zero-g voltage (V) | 1.5 | 1.65 | 1.65 | 1.65 |
| Sensitivity (mV/g) | 200 | 100 | 72.5 | 29 |
| Source zero-point drift row (g), unverified | 5 | 10 | 20 | 50 |
| Sensitivity drift (%) | 0.5 | 0.5 | 0.5 | 0.5 |
| Thermal zero-point drift (%/°C) | 0.05 | 0.05 | 0.05 | 0.05 |
| Thermal sensitivity drift (%FS/°C) | 0.05 | 0.05 | 0.05 | 0.05 |
| Nonlinearity (%) | 0.2 | 0.2 | 0.2 | 0.2 |
The source Y-sheet zero-point drift row repeats the full-range values (5/10/20/50g), which appears questionable. These numbers are reproduced as unverified source data; they should not be used as a confirmed offset specification.
HKVA-1122 Z-Series Reference
| Parameter | 100-Z | 200-Z | 400-Z |
|---|---|---|---|
| Range (g) | ±100 | ±200 | ±400 |
| Zero-g voltage (V) | 1.65 | 1.65 | 1.65 |
| Sensitivity (mV/g) | 14.5 | 7.25 | 3.62 |
| Zero-point drift (g) | 0.1 | 0.2 | 0.5 |
| Sensitivity drift (%) | 0.5 | 0.5 | 0.5 |
| Thermal zero-point drift (%/°C) | 0.05 | 0.05 | 0.05 |
| Thermal sensitivity drift (%FS/°C) | 0.05 | 0.05 | 0.05 |
| Nonlinearity (%) | 0.2 | 0.2 | 0.2 |
Shared Y/Z Reference Conditions
| Parameter | Supplier value |
|---|---|
| Operating temperature | −55 to +85°C |
| Storage temperature | −55 to +125°C |
| Startup | <1ms |
| Shock resistance | 10000g |
| Current | <4mA |
| Package dimensions | 3.8 × 3.8 × 1.4mm |
| Supply | 3.3–5V |
| Output range | 0.2–3.1V |
| Frequency response | 5kHz |
HKVA-1122 High-Range Reference
The source high-range sheet includes 1000g, 2000g and a 5000g reference version. The 5000g version is not a sales option in this listing.
| Parameter | 1000 | 2000 | 5000 — reference only |
|---|---|---|---|
| Range (g) | ±1000 | ±2000 | ±5000 |
| Zero-g voltage (V) | 1.65 | 1.65 | 1.65 |
| Sensitivity (µV/g) | 1450 | 725 | 290 |
| Zero-point drift (g) | 2 | 4 | 10 |
| Zero-g offset (g) | ±10 | ±20 | ±50 |
| Sensitivity drift (%) | 0.5 | 0.5 | 0.5 |
| Thermal zero-point drift (%/°C) | 0.05 | 0.05 | 0.05 |
| Thermal sensitivity drift (%FS/°C) | 0.05 | 0.05 | 0.05 |
| Nonlinearity (%) | 0.8 | 0.8 | 0.8 |
For this high-range sheet, the supplier lists operating temperature −55 to +85°C, storage −55 to +125°C, startup below 1ms, shock resistance 20000g, current below 4mA, 3.8 × 3.8 × 1.4mm dimensions and a 3.3–5V supply. The high-range sheet does not explicitly repeat the Y/Z output-range or 5kHz bandwidth figures, so those are not assumed for all ranges.
Application Circuit and Configuration
The analog reference circuit shows VDD, GND and OUT with a 0.1µF decoupling capacitor between VDD and GND. This is a functional illustration, not a complete package pin-number assignment. The source also illustrates amplified and unamplified 1000g/2000g configurations; these are reference examples, not additional selectable options. Match the delivered datasheet, output type, supply and mounting orientation before circuit design.
Separate 2000g Bridge-Level Source Reference
A different source table uses sensitivity in mV/g/V and does not identify its exact model. Its applicability to a selected HKVA-1122 option is unconfirmed. Do not combine it with the conditioned-output figures above.
| Parameter | Condition / min / typical / max |
|---|---|
| Operating temperature | −40 to +125°C |
| Piezoresistance | 25 / 33 / 40kΩ |
| Acceleration range | Z-axis: −2000 to +2000g |
| Sensitivity at 25°C | Z-axis: 0.006 / 0.01 / 0.015mV/g/V |
| Sensitivity temperature drift | −0.3 / −0.2 / −0.1%/°C over operating range |
| Zero-g offset at 25°C | Z-axis: −10 / 0 / +10mV/V |
| Cross-axis sensitivity (b) | ±3% maximum as shown |
| Nonlinearity (a) | ±2% maximum as shown |
| Resonant frequency (b) | Z-axis: 39kHz typical |
The source does not include the corresponding text for footnotes (a) and (b). Resonant frequency is not the same as guaranteed measurement bandwidth.
HKVA-1111 Family Reference Only
The saved materials also include HKVA-1111 photographs and a digital-series sheet. HKVA-1111 is not a selectable model here; these family images are retained for reference without changing their printed model markings.
| HKVA-1111 parameter | 20 | 50 | 100 | 200 |
|---|---|---|---|---|
| Range (g) | ±20 | ±50 | ±100 | ±200 |
| Zero-g offset (g) | ±0.1 | ±0.2 | ±0.5 | ±1 |
| Noise (mg/√Hz) | 1 | 2 | 5 | 10 |
| Nonlinearity (%) | 0.1 | 0.1 | 0.1 | 0.1 |
| Thermal zero-point drift (%FS/°C) | 0.03 | 0.03 | 0.03 | 0.03 |
| Thermal sensitivity drift (%/°C), source values | 1 | 2 | 5 | 10 |
The HKVA-1111 sheet lists a temperature sensor, CYC periodic mode, 20-bit ADC, 800Hz output data rate, SPI/I2C, 1.8–3.6V supply, less than 1mA current, startup below 5ms, 10000g shock resistance, −45 to +85°C operation, −55 to +125°C storage, 3.8 × 3.8 × 1.4mm package and 30mg device mass. Its circuit shows VDD/CSB/GND/VPP and SDO/SCL/SDI/INT signals with 0.1µF capacitors, 4.7kΩ and 10kΩ components. These digital interface, mass and timing specifications must not be transferred to HKVA-1122.
Package Contents
One HKVA-1122 accelerometer IC in the selected nominal range. Multiple chip views illustrate package sides and family examples; they do not indicate a multi-piece pack. Custom boards, matching equipment, development boards and external wiring are not included. No military qualification or certification is established by the saved materials.
Visual Details
