ADG1634BCPZ-REEL7

Analog Devices ADG1634BCPZ-REEL7 – Quad SPDT Analog Switch in 20‑LFCSP (Exposed Pad)

A compact, board‑friendly way to route precision analog signals, the Analog Devices ADG1634BCPZ‑REEL7 integrates four single‑pole/double‑throw (SPDT) CMOS analog switches in a 4 mm × 4 mm LFCSP package with an exposed thermal pad. Delivered on a 7‑inch tape and reel, it targets designers who need reliable, repeatable switching performance and straightforward procurement from a top-tier supplier.

At a Glance

• Brand / Manufacturer: Analog Devices
• MPN: ADG1634BCPZ‑REEL7
• Category: Analog Switches / Multiplexers
• Switch Configuration: Quad SPDT (4× SPDT)
• Channels: 4
• Control Logic: Parallel (logic inputs)
• Signal Type: Analog
• Package: 20‑LFCSP (4 mm × 4 mm, Exposed Pad)
• Package Code (ADI): CP‑20 (LFCSP)
• Pin Count: 20
• Mounting Type: Surface Mount
• Packaging: Tape & Reel (TR), 7‑inch
• RoHS Status: RoHS Compliant (Lead‑free)

Overview

The Analog Devices ADG1634BCPZ‑REEL7 is part of a widely used family of CMOS analog switches designed for robust signal routing and multiplexing. By integrating four SPDT channels, it minimizes board space and simplifies control compared to discrete switch implementations. The 20‑lead LFCSP with an exposed pad supports compact layouts and improved thermal performance, while the CMOS architecture is well suited to a broad range of analog signal types.

For engineers, the ADG1634BCPZ‑REEL7 helps consolidate switching needs into a single, well-documented device. For sourcing and procurement teams, the clear suffix conventions, RoHS compliance, and standard 7‑inch reel format streamline BOM approval and assembly planning.

Why Choose the Analog Devices ADG1634BCPZ‑REEL7?

Engineering Value

• Integration: Four SPDT switches in one IC reduce component count, interconnect complexity, and potential mismatch between discrete parts.
• Compact footprint: A 4 × 4 mm LFCSP helps conserve PCB area, enabling dense analog front ends or compact instrumentation.
• Thermal and grounding advantages: The exposed pad facilitates low‑impedance grounding and improved heat spreading when properly tied to the PCB ground plane.
• Familiar control: Parallel logic inputs make channel selection straightforward from MCUs, FPGAs, or CPLDs.

Sourcing & Manufacturing Advantages

• Suffix clarity: “CPZ” designates the LFCSP package in a lead‑free variant; “REEL7” indicates 7‑inch tape‑and‑reel—useful for automated assembly lines.
• Environmental compliance: RoHS compliant (lead‑free), aligning with global environmental requirements.
• Documentation and support: Backed by Analog Devices’ product page and a consolidated family datasheet for easier technical review and qualification.

Key Specifications

The following specifications are taken directly from the provided product data. Where detailed electrical parameters are required (e.g., on‑resistance or timing), consult the official datasheet.

Functional and Mechanical

• Switch Configuration: Quad SPDT (4× SPDT)
• Channels: 4
• Control Logic: Parallel (logic inputs)
• Signal Type: Analog
• Package / Case: 20‑LFCSP (4 mm × 4 mm, Exposed Pad)
• Package Code (ADI): CP‑20 (LFCSP)
• Pin Count: 20
• Mounting Type: Surface Mount
• Packaging: Tape & Reel (TR), 7‑inch

Electrical Characteristics

• On‑Resistance: Not specified in datasheet
• On‑Resistance Flatness: Not specified in datasheet
• Supply Voltage Range: Not specified in datasheet
• Logic Input Levels: Not specified in datasheet
• Bandwidth/On‑channel Bandwidth: Not specified in datasheet
• Charge Injection: Not specified in datasheet
• Crosstalk/Off‑Isolation: Not specified in datasheet
• Leakage (On/Off): Not specified in datasheet
• Power Consumption: Not specified in datasheet
• Operating Temperature Range: Not specified in datasheet

Note: The official Analog Devices datasheet for the ADG1633/ADG1634 family is the authoritative source for electrical limits, test conditions, and typical performance curves.

Package, Handling, and PCB Design Notes

• Package format: 20‑lead LFCSP with an exposed pad, nominal 4 mm × 4 mm body size. The compact footprint suits dense mixed‑signal boards.
• Exposed pad usage: For best thermal and electrical performance, solder the exposed pad to a grounded copper area. Use thermal vias to spread heat into inner planes if your design operates in elevated ambient temperatures or high duty‑cycle switching conditions.
• Land pattern: Follow the recommended land pattern and stencil guidance from the package drawing in the datasheet. Proper pad sizing and paste aperture design help ensure void‑free solder joints on the exposed pad.
• Assembly: Supplied on a 7‑inch tape and reel (REEL7) for automated pick‑and‑place. Verify your feeder compatibility and preferred reel diameter during AVL/AML setup.
• ESD and handling: Use standard ESD precautions when handling CMOS analog switches. Reference the datasheet and company ESD procedures for storage and workbench practices.

Applications

The ADG1634BCPZ‑REEL7 is a versatile analog switch for a range of signal routing tasks:

• General‑purpose analog signal routing
• Data acquisition systems (DAQ)
• Audio/video switching
• Communication systems
• Test and measurement instrumentation

Example use cases include selecting between sensors in an instrumentation front end, multiplexing precision DAC/ADC channels, switching audio signal paths, and creating configurable RF/baseband paths in communications hardware (observing performance limits from the datasheet).

Lifecycle, Availability, and Replacements

• Lifecycle Status: Not specified (check the Analog Devices product page for the latest status).
• OCM Source: Analog Devices
• Replacements/Pin‑compatible Alternatives: Not specified in datasheet
• Approved Alternates: Not specified in datasheet

Availability and lead times can vary by region and build plan. If you are designing for long‑term production, consider:

• Confirming lifecycle and supply outlook with your ADI representative or authorized distributor.
• Qualifying a second‑source analog switch with similar package and control interface if your risk policy requires it.
• Ensuring your PCB pinout follows the package drawing exactly to preserve flexibility when evaluating family variants (subject to verification in the datasheet).

Current inventory in the provided dataset: 0 units. Check the Analog Devices product page and franchised distributors for up‑to‑date stock and lead time.

Compliance and Environmental

• RoHS: RoHS Compliant (Lead‑free). The “Z” suffix indicates a lead‑free device per Analog Devices’ conventions.
• REACH or other environmental declarations: Not specified in datasheet
• Halogen‑free status: Not specified in datasheet

If your program requires specific environmental certifications or material disclosures, request the latest compliance documentation from Analog Devices or their authorized channels.

Ordering Information

• Manufacturer Part Number (MPN): ADG1634BCPZ‑REEL7
• Description: Quad SPDT CMOS analog switch in a 20‑lead LFCSP with exposed pad; supplied on 7‑inch tape and reel
• Packaging: Tape & Reel (TR), 7‑inch
• Package Code: CP‑20 (LFCSP)
• Mounting: Surface‑mount

Suffix guidance:

• “CP” denotes the LFCSP package style per ADI’s package code.
• “Z” indicates a lead‑free variant.
• “REEL7” indicates 7‑inch tape‑and‑reel supply.

For alternate reel diameters, cut tape, or different packing quantities, consult your distributor’s stocking SKUs.

Design‑In Checklist

To reduce back‑and‑forth during design reviews and sourcing, consider the following early in your project:

• Signal levels and rails: Verify that the device’s supply range, logic thresholds, and analog input ranges match your system rails and MCU/FPGA logic levels. (Electrical limits: Not specified in datasheet here; refer to the official document.)
• Linearity and noise: Check on‑resistance, flatness, charge injection, and crosstalk/off‑isolation versus your signal bandwidth and SNR requirements. (Values: Not specified in datasheet here.)
• Thermal strategy: Tie the exposed pad to a ground plane with adequate copper and vias; perform a quick thermal estimate if operating in warm environments.
• Layout: Keep sensitive analog traces short, shielded by grounded copper where practical; separate high‑slew digital lines from analog paths to minimize coupling.
• Testability: Add test points before and after the switch matrix to simplify bring‑up and manufacturing test.
• Procurement: Confirm RoHS status (lead‑free “Z” suffix), reel format (“REEL7”), and any company‑specific MSL/storage controls.

Frequently Asked Questions (FAQs)

Q: What does the part number ADG1634BCPZ‑REEL7 signify?
A: “ADG1634B” is the base device (quad SPDT CMOS analog switch). “CP” corresponds to the LFCSP package (CP‑20). “Z” indicates a lead‑free (RoHS) variant. “REEL7” denotes shipment on a 7‑inch tape and reel.

Q: How many switching channels are integrated?
A: Four channels, each configured as SPDT.

Q: What kind of control interface does it use?
A: Parallel logic inputs (digital control lines) select the switch states.

Q: Is the ADG1634BCPZ‑REEL7 RoHS compliant?
A: Yes. It is RoHS Compliant (lead‑free), consistent with the “Z” suffix.

Q: What is the package and body size?
A: 20‑lead LFCSP with exposed pad, nominal 4 mm × 4 mm body size.

Q: What is the on‑resistance or supply voltage range?
A: Not specified in datasheet here. Refer to the official Analog Devices datasheet for exact electrical limits and conditions.

Q: Can I use it for audio routing or data acquisition multiplexing?
A: Yes, the part is intended for general‑purpose analog signal routing and is commonly used in audio/video switching and DAQ systems. Ensure performance versus your bandwidth, noise, and linearity requirements by consulting the datasheet.

Q: Are there pin‑compatible family variants?
A: Family documentation exists (the datasheet URL references ADG1633/ADG1634). For pin compatibility and functional differences, verify the package drawing and selector tables in the datasheet.

Q: What is the operating temperature range?
A: Not specified in datasheet here. See the datasheet for absolute and recommended operating conditions.

Resources

• Product Page: https://www.analog.com/en/products/adg1634.html
• Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADG1633_1634.pdf

If you are qualifying the Analog Devices ADG1634BCPZ‑REEL7 for production, we recommend capturing the latest datasheet revision in your document management system and aligning your PCB library land pattern with the official package drawing. For sourcing, add the exact suffix (ADG1634BCPZ‑REEL7) to your AVL to ensure the correct package, environmental status, and reel format are consistently procured.