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Analog Devices Inc./Maxim Integrated MAX4525EUB
- Part No.:
- MAX4525EUB
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4525EUB.pdf
- Description:
- IC SWITCH DPDT X 1 150OHM 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
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Product details
Overview
The MAX4525EUB from Maxim Integrated is a low-voltage, single-supply DPDT analog switch configured for bidirectional signal routing in battery-powered and low-noise systems; it features 200Ω on-resistance at +5V, 2nA max off-leakage at +25°C, rail-to-rail analog signal handling, and TTL/CMOS-compatible logic thresholds - deployed in audio/video routing and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4525EUB datasheet, MAX4525EUB pinout, MAX4525EUB application, or MAX4525EUB equivalent, this page delivers verified electrical specs, µMAX package layout, real-world switching performance (tON/tOFF, charge injection), and validated alternatives for signal-path continuity in portable instrumentation and communications circuits.
Technical Context
The MAX4525EUB implements a dual-pole/dual-throw (DPDT) topology with independent COMA/COMB, NOA/NOB, and NCA/NCB terminals, controlled by two address inputs (ADDA, ADDB) and a global inhibit (INH). Its CMOS transmission-gate architecture supports bidirectional analog signals across the full V+ to GND range without polarity constraints.
All digital inputs feature fixed 0.8V/2.4V logic thresholds under +5V supply, eliminating level-shifting needs; internal ESD diodes clamp analog pins to V+ and GND, requiring external protection only when signals exceed supply rails - critical for robustness in handheld test equipment and sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - enables direct integration into 3.3V or 5V systems without auxiliary rails. |
| On-Resistance (RON) | 200Ω at +5V - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| On-Resistance Match | ≤8Ω between channels at +5V - preserves gain/phase matching in differential or multi-channel signal routing. |
| Off-Leakage Current | 2nA max at +25°C - maintains high-impedance isolation for sensitive sensor or DAC output buffering. |
| Switching Speed | tON = 200ns, tOFF = 180ns (RL = 300Ω, CL = 35pF) - supports fast multiplexing in data-acquisition sampling control. |
| Charge Injection | 0.8–5pC - limits voltage glitch on sampled-hold nodes, critical for ADC front-end accuracy. |
| Analog Signal Range | Rail-to-rail (GND to V+) - allows full-swing AC/DC coupling without clipping in audio or sensor conditioning. |
Pinout & Package
The MAX4525EUB is housed in a 10-pin µMAX package (3mm × 3mm, 0.5mm pitch), thermally enhanced with an exposed pad connected to V+. Pin functions are electrically identical across all analog terminals (NO/NC/COM), supporting flexible PCB layout and signal direction reversal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NOA) | Analog "A" Normally Open | Connects to COMA when switch A is activated; bidirectional path for primary signal channel. |
| 2 (COMA) | Analog "A" Common | Central node for switch A; routes signal between NOA and NCA based on ADDA/ADDB state. |
| 3 (NCA) | Analog "A" Normally Closed | Connects to COMA when switch A is inactive; provides default path without logic assertion. |
| 4 (INH) | Inhibit Control Input | Active-high logic input that forces all switches open - used for system-level power-down or fault isolation. |
| 5 (GND) | Digital Ground Reference | Reference for logic inputs and internal translators; no analog ground connection required. |
| 6 (ADDB) | Address Input B | Second bit of 2-bit DPDT control word; selects pole B state alongside ADDA. |
| 7 (ADDA) | Address Input A | First bit of 2-bit DPDT control word; determines COMA/COMB connection to NO/NC pairs. |
| 8 (NOB) | Analog "B" Normally Open | Connects to COMB when switch B is activated; independent second signal path. |
| 9 (COMB) | Analog "B" Common | Central node for switch B; mirrors COMA functionality for dual-channel operation. |
| 10 (V+) | Positive Supply | Powers analog switches and logic circuitry; exposed pad must be soldered to PCB V+ plane for thermal stability. |
Key Features
| Feature | Design Value |
|---|---|
| Single +2V to +12V operation | Eliminates dual-supply design complexity in portable medical devices and IoT edge sensors. |
| Guaranteed 8Ω RON match | Enables matched gain/attenuation in stereo audio routing or differential signal switching without calibration. |
| 2nA max off-leakage at +25°C | Preserves DC accuracy in high-impedance pH or thermocouple measurement paths. |
| TTL/CMOS logic compatibility | Direct interface with microcontroller GPIOs at 3.3V or 5V without level shifters in embedded controllers. |
| Break-before-make timing | 5ns typical ensures no signal shorting during state transitions - essential for relay-replacement in safety-critical systems. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Switching between microphone inputs and line-level outputs in handheld audio recorders or conferencing devices. IC Role / Device Role / Timing Role: DPDT analog switch providing bidirectional, low-distortion signal path selection with <0.2% THD up to 20kHz. Use Value: 200Ω RON and rail-to-rail operation preserve dynamic range and SNR without external biasing. | Use Scenario: Multiplexing multiple sensor outputs (thermistor, strain gauge, RTD) into a single ADC channel in field-deployable test equipment. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling high-impedance sensor interfacing with <2nA off-current minimizing measurement drift. Use Value: Guaranteed 8Ω RON match ensures consistent channel-to-channel gain scaling across temperature. |
| Communications Interface | Battery-Powered Instrumentation |
Use Scenario: Selecting between RF front-end receive paths (antenna diversity or band switching) in compact SDR transceivers. IC Role / Device Role / Timing Role: High-isolation DPDT switch delivering -74dB crosstalk and -75dB off-isolation at 1MHz for clean signal separation. Use Value: 500Ω RON at +3V supports ultra-low-power operation while maintaining >40dB signal-to-noise ratio. | Use Scenario: Enabling/disabling power to peripheral modules (LCD backlight, USB PHY, sensor arrays) in clinical diagnostic handhelds. IC Role / Device Role / Timing Role: Inhibit-controlled analog switch acting as a programmable load disconnect with <200ns turn-off time for rapid power sequencing. Use Value: Single +3V supply compatibility eliminates need for dedicated PMIC rails, reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG732BRUZ | 16-channel SPST, 4Ω RON at +3V, 1.8V–5.5V supply - lower on-resistance but no DPDT configuration. | Requires external logic to emulate DPDT behavior; unsuitable for true break-before-make routing. | Select when channel count >2 is needed and discrete control of each path is acceptable. |
| TS5A23157DGSR | DPDT, 0.9Ω RON at +3V, 1.65V–5.5V supply - superior RON but 25nA off-leakage at +85°C vs. MAX4525EUB's 20nA. | Better for high-speed USB 2.0 switching; less optimal for precision DC-coupled sensor paths due to higher leakage. | Prefer for 3.3V systems demanding lowest possible insertion loss, accepting trade-off in high-temp leakage. |
Compared with ADG732BRUZ and TS5A23157DGSR, the MAX4525EUB uniquely combines native DPDT topology, guaranteed RON matching, and sub-2nA off-leakage at room temperature - making it optimal for space-constrained, battery-operated instrumentation requiring deterministic signal routing without external logic overhead.
Availability
MAX4525EUB 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 across industrial temperature ranges (-40°C to +85°C).
Supply support for MAX4525EUB 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, and communications applications.
The MAX4525EUB belongs to Maxim's low-voltage analog switch family, engineered specifically for rail-to-rail signal integrity and ultra-low leakage in portable and sensor-interface systems.
FAQ
What is the maximum operating temperature range for the MAX4525EUB?
The MAX4525EUB is rated for operation from -40°C to +85°C, as confirmed by its ordering code suffix 'E' and Absolute Maximum Ratings table. This extended temperature range supports deployment in automotive cabin modules, outdoor instrumentation, and industrial control panels where ambient conditions exceed commercial-grade limits. The device maintains specified RON, leakage, and switching performance across this full range.
Does the MAX4525EUB require external pull-up or pull-down resistors on its logic inputs?
No, the MAX4525EUB does not require external pull-up or pull-down resistors on ADDA, ADDB, or INH inputs. Its logic thresholds are fixed at 0.8V (VIL) and 2.4V (VIH) under +5V supply, ensuring direct compatibility with standard 3.3V or 5V microcontroller GPIOs. Internal input structures provide sufficient noise immunity without external biasing - simplifying layout in space-constrained PCBs.
Can the MAX4525EUB handle bipolar analog signals?
No, the MAX4525EUB cannot handle true bipolar analog signals (e.g., ±2.5V) because its analog signal range is strictly rail-to-rail between GND and V+, with no negative supply capability. Signals must remain within 0V to V+ (e.g., 0V to +5V). For bipolar operation, external level-shifting circuitry or a dual-supply switch like the MAX4532 would be required - the MAX4525EUB is designed exclusively for unipolar, single-supply systems.
What is the purpose of the exposed pad on the MAX4525EUB µMAX package?
The exposed pad on the MAX4525EUB µMAX package is internally connected to V+ and must be soldered to the PCB's V+ copper pour. This connection provides critical thermal dissipation (derating begins at +70°C) and reduces thermal resistance by ~25°C/W versus non-connected pads. It also improves high-frequency grounding for analog signal integrity - omitting this connection risks thermal shutdown or increased on-resistance drift during sustained switching.
How does the INH pin function in the MAX4525EUB?
The INH (Inhibit) pin on the MAX4525EUB is an active-high control that forces all internal switches into the open (off) state regardless of ADDA/ADDB logic states. When pulled high (≥2.4V), it overrides address decoding and disconnects COMA/COMB from all NO/NC paths - enabling system-level signal isolation during power-down, fault recovery, or safety interlocks. Its 1µA max input current minimizes loading on control logic.
MAX4525EUB 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4525EUB FAQ
1.How can I place an order for MAX4525EUB through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4525EUB 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 MAX4525EUB reliable?
The price and inventory of MAX4525EUB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4525EUB is usually 5 days.
3.What payment methods are accepted for MAX4525EUB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4525EUB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4525EUB?
MAX4525EUB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4525EUB 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 MAX4525EUB?
For technical support, including MAX4525EUB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4525EUB requirements.
6.How does Aetrix verify that MAX4525EUB is sourced from the original manufacturer or authorized distributors?
All MAX4525EUB 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 MAX4525EUB meets industry standards.
7.What is the process for return or replacement of MAX4525EUB?
All MAX4525EUB units undergo pre-shipment inspection (PSI). If there is an issue with MAX4525EUB, 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 MAX4525EUB part is unused and in its original packaging.
Return procedure for MAX4525EUB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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