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Analog Devices Inc./Maxim Integrated MAX4525CPD
- Part No.:
- MAX4525CPD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4525CPD.pdf
- Description:
- IC SWITCH DPDT X 1 150OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,169
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Product details
Overview
MAX4525CPD from Maxim Integrated is a low-voltage, single-supply double-pole/double-throw (DPDT) analog switch optimized for +3V or +5V operation, featuring 200Ω on-resistance at +5V, 2nA max on-leakage at +25°C, and rail-to-rail analog signal handling up to ±5.5V. It serves as a precision signal routing device in battery-powered audio/video systems and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4525CPD datasheet, MAX4525CPD pinout, MAX4525CPD application, or MAX4525CPD equivalent, key selection criteria include guaranteed on-resistance matching (8Ω), break-before-make timing (5ns typical), TTL/CMOS logic compatibility, and TDFN-EP package thermal performance for compact portable designs.
Technical Context
The MAX4525CPD implements a CMOS transmission-gate architecture with dual independent DPDT sections (COMA/NOA/NCA and COMB/NOB/NCB), each controlled by separate ADDA/ADDB address inputs and a shared INH inhibit line that forces all switches open when high. Its internal logic-level translators isolate digital control signals from analog paths while maintaining rail-to-rail voltage swing capability.
It operates across +2V to +12V single supply, with specified performance at +3V and +5V: on-resistance varies from 500Ω (+3V) to 200Ω (+5V); off-isolation reaches –75dB at 1MHz; and charge injection is limited to 5pC maximum-critical for precision sampling and multiplexed ADC interfaces where signal integrity must be preserved across channel transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +12V single supply; enables direct integration into Li-ion (3.0–4.2V) and USB-powered (5V) systems without level-shifting. |
| On-Resistance (RON) | 200Ω at +5V; ensures minimal signal attenuation and gain error in sensor signal chains and audio routing paths. |
| On-Resistance Match | ≤8Ω between channels at +5V; guarantees matched gain/attenuation in differential or balanced signal switching applications. |
| Off-Leakage Current | 2nA max at +25°C; preserves accuracy in high-impedance sensor interfaces and low-power standby modes. |
| Charge Injection | 5pC max; minimizes voltage glitch on sampled-hold nodes, supporting ≤12-bit ADC resolution without calibration. |
| Break-Before-Make Time | 5ns typical; prevents momentary shorting between NC and NO paths during switching-essential for fault-tolerant signal routing. |
| Logic Thresholds | 0.8V to 2.4V at +5V; ensures reliable TTL/CMOS compatibility without external biasing or translation circuitry. |
Pinout & Package
MAX4525CPD is housed in a 10-pin TDFN-EP package (3mm × 3mm) with exposed pad connected to V+ for enhanced thermal dissipation and low-inductance grounding in high-frequency layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Supplies both analog switch core and digital logic; also connects to exposed pad for thermal management and ESD path. |
| GND | Digital/analog reference ground | Reference for logic thresholds and ESD diode clamping; no analog signal reference-rail-to-rail operation is relative to V+/GND. |
| INH | Inhibit control input | Active-high global disable: drives all switches to open state simultaneously, enabling system-level power gating. |
| ADDA / ADDB | Address select inputs | Binary-coded control for DPDT section A (ADDA) and section B (ADDB); each selects NO or NC path independently. |
| COMA / COMB | Common terminals | Center-pole connections for DPDT sections; bidirectional-support either source or load connection per channel. |
| NOA / NOB | Normally open outputs | Switch-closed path when corresponding ADDx = 1; used for default-off signal routing or active-path selection. |
| NCA / NCB | Normally closed outputs | Switch-closed path when corresponding ADDx = 0; provides fail-safe or default-on signal continuity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full V+ to GND voltage swing on all NO/NC/COM pins-enables direct interfacing with op-amps, ADCs, and DACs without level-shifting. |
| Guaranteed on-resistance match | ≤8Ω mismatch between channels at +5V-ensures consistent gain/phase response in multi-channel instrumentation and audio summing circuits. |
| TTL/CMOS logic compatibility | 0.8V to 2.4V input thresholds at +5V supply-eliminates need for external logic translators in microcontroller-driven systems. |
| Low charge injection (5pC) | Reduces settling error in sample-and-hold and multiplexed ADC front-ends, preserving DC accuracy and reducing post-processing calibration. |
| Exposed-pad TDFN package | 3mm × 3mm footprint with thermal pad tied to V+-improves power dissipation and high-frequency layout stability vs. µMAX alternatives. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in Bluetooth headsets and voice-controlled wearables. IC Role / Device Role / Timing Role: DPDT analog switch providing bidirectional, low-distortion signal path selection with <0.2% THD at 20kHz. Use Value: 200Ω RON and 5pC charge injection prevent audible pop/click artifacts and preserve SNR in 16-bit audio paths. | Use Scenario: Multiplexing thermistor, RTD, and strain gauge sensors into a single low-power SAR ADC in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sensor readout with matched channel resistance and sub-nA leakage. Use Value: 2nA max off-leakage and ≤8Ω RON match ensure ≤0.1°C temperature error and <0.01% gain drift across channels. |
| Battery-Powered Communications | Low-Voltage Industrial I/O |
Use Scenario: Selecting between RF transceiver baseband I/Q lines and calibration loopback paths in sub-GHz ISM band modules. IC Role / Device Role / Timing Role: High-isolation DPDT switch isolating transmit/receive paths with –75dB off-isolation at 1MHz. Use Value: –75dB isolation and 5ns break-before-make prevent Tx leakage into Rx chain, meeting FCC spurious emission limits. | Use Scenario: Configuring analog input ranges (±10V, 0–5V, 4–20mA) on programmable logic controller (PLC) analog input cards. IC Role / Device Role / Timing Role: Robust signal routing element handling industrial voltage/current levels with ESD-protected, rail-to-rail operation. Use Value: +12V absolute max rating and internal ESD diodes (>2000V HBM) allow direct interface with field wiring without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4525ETB | Same die, -40°C to +85°C temp range, identical TDFN-EP package (3mm × 3mm), top mark AAQ. | Extended temperature support for industrial/outdoor deployments; same PCB footprint and thermal profile. | Select MAX4525ETB for designs requiring operation beyond 0°C to +70°C ambient. |
| ADG732BRUZ | 32-channel SPST, not DPDT; 4Ω RON at +5V; 1.8V–5.5V supply; 24-TSSOP package. | Higher channel count but no inherent DPDT topology-requires two devices and external logic to emulate MAX4525CPD functionality. | Choose only if system requires >2 DPDT paths or needs lower RON at cost of board area and complexity. |
Compared with MAX4525CPD, MAX4525ETB offers extended temperature qualification without layout changes, while ADG732BRUZ provides lower on-resistance and wider voltage range but lacks native DPDT structure-requiring additional components and increasing BOM count and signal path length.
Availability
MAX4525CPD is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term manufacturability.
Supply support for MAX4525CPD 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for industrial, medical, communications, and consumer applications.
The MAX4524/MAX4525 product line delivers low-voltage, single-supply analog switching solutions targeting portable and energy-constrained systems where rail-to-rail performance, low leakage, and small footprint are critical.
FAQ
What is the maximum supply voltage rating for the MAX4525CPD?
The MAX4525CPD has an absolute maximum supply voltage (V+) of +13V, but its specified operational range is +2V to +12V. Operation above +12V risks permanent damage, and the device is characterized and guaranteed only within the +2V to +12V range. For reliable long-term use, maintain V+ ≤ +12V with appropriate decoupling.
Does the MAX4525CPD support bidirectional analog signal flow?
Yes, the MAX4525CPD supports fully bidirectional signal flow on all NO, NC, and COM pins-each switch functions identically regardless of signal direction. This is inherent to its CMOS transmission-gate design and enables flexible use as either a multiplexer or demultiplexer in signal chains without polarity constraints.
What is the purpose of the exposed pad on the MAX4525CPD TDFN package?
The exposed pad on the MAX4525CPD's TDFN package is internally connected to V+ and must be soldered to a V+-referenced copper pour on the PCB. It improves thermal dissipation (derating factor 24.4mW/°C above +70°C), reduces package inductance for high-frequency stability, and enhances ESD robustness via low-impedance path to supply rail.
Can the MAX4525CPD operate reliably from a +3.3V supply?
Yes, the MAX4525CPD is fully specified for +3V supply operation (2.7V to 3.6V range), delivering 500Ω typical on-resistance, 25nA max off-leakage at +85°C, and guaranteed logic thresholds (0.5V to 2.0V). It maintains rail-to-rail analog swing and functional timing specs-making it suitable for modern 3.3V microcontroller and FPGA I/O domains.
How does the INH pin affect switching behavior in the MAX4525CPD?
The INH pin is an active-high global inhibit: when driven high (≥2.4V at +5V supply), it forces all internal switches into the open state regardless of ADDA/ADDB states. When pulled low (≤0.8V), normal address-controlled switching resumes. This enables system-level power sequencing and fault-safe shutdown without modifying address logic.
MAX4525CPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- DPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 150Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- 0.8pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -74dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX4525CPD FAQ
1.How can I place an order for MAX4525CPD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4525CPD 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 MAX4525CPD reliable?
The price and inventory of MAX4525CPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4525CPD is usually 5 days.
3.What payment methods are accepted for MAX4525CPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4525CPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4525CPD?
MAX4525CPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4525CPD 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 MAX4525CPD?
For technical support, including MAX4525CPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4525CPD requirements.
6.How does Aetrix verify that MAX4525CPD is sourced from the original manufacturer or authorized distributors?
All MAX4525CPD 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 MAX4525CPD meets industry standards.
7.What is the process for return or replacement of MAX4525CPD?
All MAX4525CPD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4525CPD, 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 MAX4525CPD part is unused and in its original packaging.
Return procedure for MAX4525CPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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