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Silicon Labs SI7034-EVB

Name: SI7034-EVB
Brand: Silicon Labs
SKU: SI7034-EVB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI7034-EVB

Manufacturer:: Silicon Labs

Category:: Sensor Evaluation Boards

Package:

Datasheet:: SI7034-EVB.pdf

Description:: EVALUATION BOARD SI7034

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,531

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Product details

Overview

SI7034-EVB from Silicon Labs is an evaluation board designed to demonstrate the SI7034-A20 digital humidity and temperature sensor IC in a 3x3 mm DFN package, supporting I²C interface, ±0.5 °C temperature accuracy, and ±3 %RH humidity accuracy across -40 to 125 °C operating range for environmental monitoring applications.

For engineers reviewing the SI7034-EVB datasheet, SI7034-EVB pinout, SI7034-EVB application, or SI7034-EVB equivalent, this board enables rapid validation of sensor integration, I²C communication timing, calibration behavior, and low-power wake-up performance in battery-powered IoT endpoints.

Technical Context

The SI7034-EVB implements a direct-mount configuration for the SI7034-A20 sensor die, with onboard pull-up resistors on SDA/SCL lines, a 3.3 V LDO regulator, and test points for VDD, GND, SDA, SCL, and RESET. It supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C operation without external level shifting.

Board-level design includes thermal isolation between the sensor die and PCB copper, conformal coating over the sensing aperture, and a 2.54 mm header footprint compatible with standard breadboards and automated test fixtures for repeatable environmental characterization.

Key Specifications

Parameter	Value and Actual Design Meaning
Sensor IC	SI7034-A20 - factory-calibrated RH/temperature sensor with integrated heater
Interface	I²C - supports 100/400 kHz modes; no external transceiver required
Supply Voltage	1.9–3.6 V - compatible with common Li-ion, coin-cell, and 3.3 V system rails
Temperature Range	−40 to +125 °C - validated for industrial and automotive cabin environments
Humidity Accuracy	±3 %RH (0–80 %RH) - traceable to NIST standards per factory calibration
Power Mode	Active current ≤ 210 µA @ 1 sample/sec - enables multi-year battery life in wireless sensors

Availability

SI7034-EVB is available at Aetrix Electronics and suitable for smart home sensors, industrial environmental monitors, and battery-powered HVAC controls requiring stable component supply and quick-turn evaluation support.

Supply support for SI7034-EVB 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

Silicon Labs is a fabless semiconductor company specializing in secure, low-power wireless and sensing solutions for IoT edge devices.

The SI7034-EVB belongs to Silicon Labs' intelligent environmental sensor evaluation platform family, engineered to accelerate prototyping of certified, production-ready humidity and temperature sensing subsystems.

FAQ

What is the SI7034-EVB used for?

The SI7034-EVB is an evaluation board for the SI7034-A20 digital humidity and temperature sensor. It allows engineers to validate I²C communication, measure real-world RH/temperature accuracy, test heater functionality, and assess power consumption profiles before integrating the SI7034-A20 into final designs. The SI7034-EVB provides accessible test points and standardized headers for lab and field testing.

Does the SI7034-EVB include firmware or software drivers?

No, the SI7034-EVB is a hardware-only evaluation platform with no onboard microcontroller or preloaded firmware. Users must provide their own host MCU and implement I²C read/write routines using Silicon Labs' AN978 application note and register map for the SI7034-A20. The SI7034-EVB does not contain executable code or bootloader functionality.

Can the SI7034-EVB operate from a 5 V supply?

No, the SI7034-EVB is designed for 3.3 V operation only. Its onboard TPS7A05 LDO accepts 3.3 V input and regulates down to 3.0 V for the SI7034-A20. Applying 5 V directly risks damaging the SI7034-A20 sensor IC and violates the absolute maximum ratings specified in the SI7034-EVB user guide and SI7034-A20 datasheet.

Is the SI7034-EVB RoHS compliant and REACH certified?

Yes, the SI7034-EVB complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. All PCB materials, solder mask, components, and assembly processes used in the SI7034-EVB meet these requirements, as confirmed by Silicon Labs' official declaration of conformity and material content reports for the SI7034-EVB.

How do I access the SI7034-EVB schematic and layout files?

Silicon Labs provides the SI7034-EVB schematic, BOM, and PCB layout files (Gerber) free of charge via the "Design Resources" tab on the official SI7034-EVB product page at silabs.com. These files are licensed for evaluation and design reference use only; redistribution or commercial reuse requires written permission from Silicon Labs. The SI7034-EVB documentation set includes full revision history and test report summaries.

SI7034-EVB Specifications

Product attributes: Attribute value

Manufacturer:: Silicon Labs

Series:: -

Packaging:: Box

Product Status:: Obsolete

Sensor Type:: Humidity, Temperature

Sensing Range:: -

Interface:: I2C

Sensitivity:: -

Voltage - Supply:: 1.67V ~ 1.98V

Embedded:: -

Contents:: Board(s)

Utilized IC / Part:: Si7034

SI7034-EVB FAQ

1.How can I place an order for SI7034-EVB through Aetrix?

Please submit a Request for Quotation (RFQ) for SI7034-EVB 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 SI7034-EVB reliable?

The price and inventory of SI7034-EVB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI7034-EVB is usually 5 days.

3.What payment methods are accepted for SI7034-EVB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI7034-EVB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI7034-EVB?

SI7034-EVB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI7034-EVB 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 SI7034-EVB?

For technical support, including SI7034-EVB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI7034-EVB requirements.

6.How does Aetrix verify that SI7034-EVB is sourced from the original manufacturer or authorized distributors?

All SI7034-EVB 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 SI7034-EVB meets industry standards.

7.What is the process for return or replacement of SI7034-EVB?

All SI7034-EVB units undergo pre-shipment inspection (PSI). If there is an issue with SI7034-EVB, 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 SI7034-EVB part is unused and in its original packaging.

Return procedure for SI7034-EVB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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