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Analog Devices Inc. AD22037Z
- Part No.:
- AD22037Z
- Manufacturer:
- Analog Devices Inc.
- Category:
- Accelerometers
- Package:
- 8-CLCC
- Datasheet:
-
AD22037Z.pdf
- Description:
- ACCELEROMETER 18G ANALOG 8CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,670
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Product details
Overview
AD22037Z from Analog Devices is a precision dual-axis iMEMS® accelerometer with ±18 g full-scale range, 100 mV/g sensitivity (ratiometric), and 110 µg/√Hz noise density. It delivers 1 mg resolution at 60 Hz bandwidth, operates from 3 V to 6 V, and functions across −40°C to +125°C for high-accuracy tilt sensing and vibration monitoring in industrial platforms.
For engineers reviewing the AD22037Z datasheet, AD22037Z pinout, AD22037Z application, or AD22037Z equivalent, this page provides verified technical context, validated pin functions, confirmed dual-axis performance parameters, and real-world design implications for tilt, motion detection, and stabilization systems.
Technical Context
The AD22037Z implements a surface micromachined polysilicon sensor with open-loop architecture and phase-sensitive demodulation. Its output is ratiometric voltage (XOUT/YOUT), directly proportional to acceleration on both axes, with zero-g bias centered at VS/2.
Bandwidth is user-adjustable via external capacitors CX and CY (0.002 µF–10 µF), yielding 0.5 Hz–2.5 kHz response. Self-test is activated by driving ST to VS, producing ≥60 mV output shift-confirmed per Table 1 for AD22037.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-Scale Range | ±18 g - supports high-shock environments including abuse event detection and vehicle dynamics. |
| Sensitivity | 94–106 mV/g (typ. 100 mV/g) - ratiometric to supply voltage; enables accurate scaling without calibration at varying VS. |
| Zero-g Bias | 2.4–2.6 V at VS = 5 V - tightly controlled offset allows sub-degree tilt resolution when combined with low drift. |
| Noise Density | 110 µg/√Hz - enables resolution of <1 mg signals below 60 Hz, critical for static inclination measurement. |
| Supply Current | 0.7–1.1 mA - ultra-low power enables battery-operated condition monitoring and portable instrumentation. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, industrial control, and downhole equipment. |
| Shock Survival | 3500 g - survives mechanical stress during assembly, transport, and field deployment without damage. |
Pinout & Package
AD22037Z is housed in an 8-terminal ceramic LCC package (5 mm × 5 mm × 2 mm), RoHS-compliant and compatible with Sn/Pb- and Pb-free soldering profiles per Figure 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ST | Self-Test Control Input | Drives internal electrostatic test force; requires logic-high (VS) to verify beam movement and signal chain integrity. |
| 2 NC | No Connect | Internally unconnected; must remain floating or grounded-no routing or loading permitted. |
| 3 COM | Common Reference | System ground reference for analog outputs; must be low-impedance and decoupled near device. |
| 4 NC | No Connect | Internally unconnected; no electrical function or thermal path. |
| 5 NC | No Connect | Internally unconnected; not used for thermal dissipation or shielding. |
| 6 YOUT | Y-Axis Analog Output | Voltage output proportional to Y-axis acceleration (±18 g); requires external RC filter (CY + 32 kΩ) for bandwidth control. |
| 7 XOUT | X-Axis Analog Output | Voltage output proportional to X-axis acceleration (±18 g); filtered independently via CX to match application bandwidth needs. |
| 8 VS | Power Supply Input | 3 V–6 V single supply; powers sensor and signal chain; requires 0.1 µF decoupling capacitor (CDC) close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-axis monolithic integration | Single-chip X/Y sensing eliminates inter-device misalignment; X–Y axis alignment ≤0.1° ensures accurate vector decomposition in tilt applications. |
| User-configurable bandwidth | External CX/CY capacitors set 0.5 Hz–2.5 kHz bandwidth-enables optimization of noise vs. response time without firmware changes. |
| Ratiometric output scaling | Sensitivity and zero-g bias track VS; maintains accuracy across supply variations (e.g., battery discharge) without recalibration. |
| High zero-g stability | Initial 0 g deviation ≤±125 mg and tempco ≤±1 mg/°C-reduces tilt error drift over temperature in navigation-grade platforms. |
| Integrated self-test | ST pin activation produces ≥60 mV output shift-verifies MEMS structure mobility and analog signal path in-system, prior to deployment. |
Applications
| Platform Stabilization | Industrial Vibration Monitoring |
|---|---|
Use Scenario: Maintaining level orientation of antenna arrays, solar trackers, or construction equipment on uneven terrain. IC Role / Device Role / Timing Role: Dual-axis gravity-referenced sensor providing real-time X/Y inclination feedback to servo controllers. Use Value: Sub-degree tilt resolution (<0.06°) enables precise angular correction using only DC-coupled analog outputs-no ADC oversampling required. |
Use Scenario: Detecting bearing wear or imbalance in rotating machinery (pumps, motors, gearboxes) via low-frequency acceleration signatures. IC Role / Device Role / Timing Role: Analog front-end capturing 0.5–200 Hz vibration spectra with 110 µg/√Hz noise floor for early fault detection. Use Value: Bandwidth programmability (via CX/CY) allows matching filter cutoff to machine RPM harmonics-maximizing SNR without digital post-processing. |
| Abuse Event Detection | High-Accuracy Tilt Sensing |
Use Scenario: Logging impact events during shipping or handling of sensitive electronics, medical devices, or aerospace components. IC Role / Device Role / Timing Role: Shock event recorder triggered by >10 g transients; leverages 3500 g survival rating for reliability. Use Value: Confirmed ±18 g range and 1 mg resolution capture minor drops (e.g., 0.5 m height) while surviving catastrophic shocks-no sensor replacement needed. |
Use Scenario: Calibrating inclinometers in surveying tools, structural health monitors, or autonomous mobile robots requiring <0.1° static angle accuracy. IC Role / Device Role / Timing Role: Gravity-based orientation reference with ratiometric outputs enabling direct analog-to-angle conversion (ASIN(AX/1g)). Use Value: Low temperature drift (≤±1 mg/°C) and tight initial offset (±125 mg) minimize calibration frequency-extending field service intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-axis analog-output accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL203CE | Same 8-pin LCC package; ±5 g range; 312 mV/g sensitivity; higher noise density (130 µg/√Hz). | Better suited for medium-range tilt where higher sensitivity improves low-angle resolution but sacrifices shock margin. | Select ADXL203CE when ±5 g dynamic range suffices and system-level noise budget permits 130 µg/√Hz. |
| ADXL326BCPZ | 3-axis, 3.3 V operation only; ±16 g range; 420 mV/g; integrated 500 Hz filter; higher quiescent current (350 µA vs. 700 µA). | Provides Z-axis data for full 3D orientation; fixed bandwidth simplifies layout but reduces flexibility in vibration analysis. | Choose ADXL326BCPZ when third-axis data is required and 500 Hz bandwidth meets application needs-avoid if adjustable filtering is essential. |
Compared with AD22037Z, ADXL203CE offers higher sensitivity but lower full-scale range and greater noise, while ADXL326BCPZ adds Z-axis capability at the cost of fixed bandwidth and reduced supply voltage flexibility-making AD22037Z optimal for rugged, dual-axis, bandwidth-tunable industrial sensing.
Availability
AD22037Z is available at Aetrix Electronics and suitable for platform stabilization, industrial vibration monitoring, and abuse event detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD22037Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
AD22037Z belongs to the iMEMS® accelerometer product line, engineered for high-stability, low-noise, dual-axis inertial sensing in demanding industrial, instrumentation, and transportation applications.
FAQ
What is the full-scale measurement range of the AD22037Z?
The AD22037Z has a full-scale range of ±18 g on both X and Y axes, verified in Table 1 of the ADXL103/ADXL203 Rev. F datasheet under the AD22035/AD22037 row. This range supports high-shock applications such as drop testing and vehicle crash pulse detection while maintaining linearity within ±1.25% of full scale.
How does the AD22037Z achieve ratiometric output behavior?
The AD22037Z output voltage scales linearly with supply voltage (VS): sensitivity is 100 mV/g at VS = 5 V, and zero-g bias is nominally VS/2. This ratiometric relationship is confirmed in the "SENSITIVITY (RATIOMETRIC)" and "ZERO g BIAS LEVEL (RATIOMETRIC)" sections of Table 1, ensuring consistent scaling across 3 V–6 V operation without recalibration.
What external components are required for basic operation of the AD22037Z?
The AD22037Z requires three external components: a 0.1 µF decoupling capacitor (CDC) on VS, and two filter capacitors (CX and CY) on XOUT and YOUT to set bandwidth. Per Table 7 and Applications Information, minimum CX/CY is 2000 pF; typical values like 0.1 µF yield 50 Hz bandwidth with 1.0 mg rms noise.
Can the AD22037Z be used for tilt sensing, and what is its angular resolution?
Yes-the AD22037Z is explicitly qualified for high-accuracy dual-axis tilt sensing. With 110 µg/√Hz noise density and 60 Hz bandwidth, it resolves <1 mg signals, corresponding to <0.06° inclination change. This is confirmed in the General Description and Applications sections, and supported by Figure 39 showing output vs. orientation.
What is the self-test functionality of the AD22037Z, and how is it verified?
The AD22037Z self-test is activated by driving the ST pin to VS, generating ≥60 mV output shift at XOUT/YOUT (Table 1). This electrostatic test verifies MEMS beam mobility and analog signal chain integrity. The response is temperature-dependent and cubic in VS, with typical 750 mV shift at 5 V-documented in Figures 15, 17, and Applications Information.
AD22037Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iMEMS®
- Package/Case:
- 8-CLCC
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±18g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 100
- Bandwidth:
- 0.5Hz ~ 2.5kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 3V ~ 6V
- Features:
- Adjustable Bandwidth
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-CLCC (5x5)
AD22037Z FAQ
1.How can I place an order for AD22037Z through Aetrix?
Please submit a Request for Quotation (RFQ) for AD22037Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD22037Z reliable?
The price and inventory of AD22037Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD22037Z is usually 5 days.
3.What payment methods are accepted for AD22037Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD22037Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD22037Z?
AD22037Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD22037Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD22037Z?
For technical support, including AD22037Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD22037Z requirements.
6.How does Aetrix verify that AD22037Z is sourced from the original manufacturer or authorized distributors?
All AD22037Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD22037Z meets industry standards.
7.What is the process for return or replacement of AD22037Z?
All AD22037Z units undergo pre-shipment inspection (PSI). If there is an issue with AD22037Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD22037Z part is unused and in its original packaging.
Return procedure for AD22037Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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