XV7011BB

The Epson XV7011BB is a high-sensitivity single-axis quartz gyroscope sensor engineered for precision angular rate measurement. Built on Epson's proprietary quartz crystal Double-T structure — fundamentally different from conventional silicon MEMS — this sensor delivers exceptional resolution and stability for applications where every fraction of a degree matters.

With a scale factor of 71,680 LSB/(°/s), the XV7011BB offers 4× the resolution of the XV7021BB (17,920 LSB/(°/s)) and XV7081BB (17,920 LSB/(°/s)). This ultra-fine granularity makes it the definitive choice for precision small-angle measurement, AGV path planning, and machine tool alignment — where standard gyroscopes simply cannot resolve the subtle motions that determine accuracy. 71,680 LSB/(°/s) — 4× Higher Resolution.

Key Design Challenges Solved

Pain Point 1 — Temperature Swing Instability

In industrial and outdoor environments, fluctuating temperatures cause conventional gyroscopes to drift, introducing cumulative angular errors that degrade system accuracy over time.

✅ Solution: The XV7011BB limits bias variation over temperature to just ±1.0 °/s max across the standard -20 to +80°C range. For extreme environments, an optional -40 to +85°C extended temperature range variant is available, ensuring stable performance from arctic cold to desert heat — all without external compensation circuitry.

Pain Point 2 — Motion Latency and Measurement Errors

Low-resolution gyroscopes miss subtle angular movements, forcing system designers to apply heavy digital filtering that introduces latency — a critical problem in real-time control loops and servo systems.

✅ Solution: With 71,680 LSB/(°/s) sensitivity, the XV7011BB captures ultra-fine angular movements at the raw sensor level. This 4× resolution advantage means less digital filtering is required, dramatically reducing control loop latency. The built-in 24-bit AD converter and user-selectable low-pass / high-pass filters let you tune the signal path precisely to your application bandwidth.

Pain Point 3 — The Resolution vs. Range Trade-off

Wide-range gyroscopes (±300 °/s and above) sacrifice fine resolution, making them unsuitable for precision small-angle measurement where detecting 0.01° changes is critical.

✅ Solution: The XV7011BB intentionally narrows its range to ±100 °/s, trading maximum rate for 4× finer resolution per LSB. This is the correct architectural choice for precision small-angle measurement, machine tool alignment, and AGV path planning — where slow, precise rotations matter far more than tracking high-speed spins.

Pain Point 4 — Vibration-Induced Noise and Long-Term Drift

Silicon MEMS gyroscopes are susceptible to vibration-induced noise and exhibit long-term bias drift that requires frequent recalibration in mission-critical applications.

✅ Solution: Epson's quartz crystal Double-T structure is inherently vibration-resistant due to the material properties of crystalline quartz — far outperforming silicon MEMS in high-vibration environments. Combined with an industry-leading bias instability of just 0.065 °/h, the XV7011BB maintains its accuracy over extended operation without recalibration, reducing system downtime and maintenance costs.

Specifications (characteristics)

External Dimensions

Connect 'Reserved1' pin to GND.
Do not connect 'Reserved2' pin externally.

(Unit: mm)

Footprint

(Unit: mm)

Key Advantages

1. Ultra-High Resolution: 71,680 LSB/(°/s)

The XV7011BB delivers 4× the resolution of comparable Epson XV-series gyroscopes thanks to its 24-bit ADC driving a 71,680 LSB/(°/s) scale factor. Each LSB represents an angular rate of just 0.000014 °/s, enabling detection of movements that are invisible to lower-resolution sensors. This directly translates to tighter control loops, smoother AGV trajectories, and micron-level precision in machine tool alignment.

2. Quartz Crystal Stability

Unlike silicon MEMS gyroscopes, Epson's proprietary quartz crystal Double-T structure leverages the natural piezoelectric properties of crystalline quartz. The result: inherent vibration immunity, a bias instability of just 0.065 °/h, and excellent long-term drift characteristics — all without complex compensation algorithms. This is the same quartz technology Epson has refined over decades of timing device manufacturing.

3. Wide Temperature Range Option

Standard operation spans -20 to +80°C with ±1.0 °/s max bias variation. For demanding outdoor or industrial deployments, an extended -40 to +85°C variant is available, making the XV7011BB suitable for outdoor antenna positioning systems, cold-chain AGVs, and aerospace ground support equipment — environments where silicon MEMS sensors typically fail or require heated enclosures.

4. Ultra-Low Power Modes

Despite its precision, the XV7011BB draws only 0.9 mA in active mode, dropping to 160 µA in standby and just 3 µA in sleep. This exceptional power efficiency makes it ideal for battery-powered precision instruments, portable measurement equipment, and energy-constrained IoT edge devices where every microamp counts.

Target Applications

XV-Series Model Comparison

About Epson

Epson is a global technology leader renowned for its precision sensing and timing solutions. With decades of expertise in quartz crystal manufacturing — the same core technology behind Epson's industry-standard timing devices — the XV-series gyroscopes bring unparalleled stability, resolution, and reliability to angular rate sensing.

Unlike commodity silicon MEMS gyroscopes, Epson's quartz crystal Double-T structure leverages the natural piezoelectric properties of crystalline quartz to deliver inherent vibration immunity and exceptional long-term bias stability. This technology is backed by Epson's vertically integrated manufacturing — from synthetic quartz crystal growth to final sensor calibration — ensuring consistent quality and traceability at every step.

Contact us today for samples, evaluation boards, or to discuss how the XV7011BB's 4× resolution advantage can solve your precision measurement challenges.