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Analog Devices Inc./Maxim Integrated MAX4525CUB+
- Part No.:
- MAX4525CUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4525CUB+.pdf
- Description:
- IC SWITCH DPDT X 1 150OHM 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,247
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Product details
Overview
The MAX4525CUB+ from Maxim Integrated is a low-voltage, single-supply DPDT analog switch configured for bidirectional signal routing in compact battery-powered systems. It operates from +2V to +12V, delivers 200Ω on-resistance at +5V, supports rail-to-rail analog signals, and features 2nA max off-leakage at +25°C - enabling precision signal switching in audio routing and low-voltage data acquisition.
For engineers reviewing the MAX4525CUB+ datasheet, MAX4525CUB+ pinout, MAX4525CUB+ application, or MAX4525CUB+ equivalent, key selection criteria include guaranteed on-resistance matching (8Ω), TTL/CMOS logic compatibility at +5V, inhibit-controlled channel shutdown, break-before-make timing (5ns typ), and µMAX-10 package constraints for space-constrained PCB layouts.
Technical Context
The MAX4525CUB+ implements a dual-pole/double-throw (DPDT) topology with independent COMA/COMB common terminals and paired NOA/NCA and NOB/NCB throws, controlled by two address inputs (ADDA, ADDB) and a global INH inhibit. Its CMOS transmission-gate architecture enables bidirectional analog signal flow without polarity restrictions.
All analog pins (NO_, NC_, COM_) are fully interchangeable as input or output; internal ESD diodes clamp signals to V+ and GND, limiting analog voltage range to 0V–V+. Logic thresholds (0.8V low / 2.4V high at +5V) ensure direct interface with standard TTL/CMOS outputs without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - supports direct integration into 3.3V and 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 (∆RON) | 8Ω max at +5V - critical for matched gain/phase in differential or multi-channel signal routing |
| Off-Leakage Current | 2nA max at +25°C - preserves accuracy in high-impedance sensor interfaces and sample-hold circuits |
| Logic Thresholds | 0.8V (low), 2.4V (high) at +5V - guarantees reliable switching with standard 5V digital I/O without external biasing |
| Break-Before-Make Time | 5ns typical - prevents momentary short-circuit between poles during state transitions |
| Charge Injection | 0.8pC typical - minimizes voltage glitch on sampled nodes in data-acquisition front-ends |
Pinout & Package
The MAX4525CUB+ is housed in a 10-pin µMAX package (3mm × 3mm, 0.5mm pitch), featuring an exposed pad for thermal enhancement and mechanical stability. Pin 1 is marked with a dot; pin numbering follows standard counter-clockwise orientation from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NOA) | Analog "A" Normally Open terminal | Switched connection point for pole A; bidirectional signal path when closed to COMA |
| 2 (COMA) | Analog "A" Common terminal | Center node of DPDT pole A; connects to NOA or NCA based on ADDA/ADDB state |
| 3 (NCA) | Analog "A" Normally Closed terminal | Alternate switched connection for pole A; open when NOA is closed, and vice versa |
| 4 (INH) | Inhibit control input | Active-high logic input; forces all switches open when driven high, overriding address inputs |
| 5 (GND) | Digital/analog reference ground | Return path for logic circuitry and ESD protection diodes; no analog signal reference |
| 6 (ADDB) | Address input B | Second bit of 2-bit select code; determines throw state of pole B (NOB/NCB) |
| 7 (ADDA) | Address input A | First bit of 2-bit select code; determines throw state of pole A (NOA/NCA) |
| 8 (NOB) | Analog "B" Normally Open terminal | Switched connection point for pole B; bidirectional path when closed to COMB |
| 9 (COMB) | Analog "B" Common terminal | Center node of DPDT pole B; connects to NOB or NCB based on ADDA/ADDB state |
| 10 (V+) | Positive supply | Powers analog switches and logic; sets absolute voltage limits for rail-to-rail signal handling |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Eliminates need for dual ±5V rails in portable instrumentation and mixed-signal systems |
| Rail-to-rail analog signal handling | Supports full dynamic range of sensors and DACs operating from 0V to V+ without clipping |
| TTL/CMOS logic compatibility | Direct interfacing with microcontrollers and FPGAs using standard 5V I/O, no level shifters required |
| Guaranteed on-resistance matching | Enables precise channel balancing in differential amplifiers and multiplexed ADC front-ends |
| Inhibit-controlled global shutdown | Allows system-level power gating of analog signal paths during sleep or fault conditions |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in portable audio devices. IC Role / Device Role / Timing Role: DPDT analog switch providing bidirectional, low-distortion signal path selection under microcontroller control. Use Value: 200Ω on-resistance and 0.8pC charge injection minimize THD (<0.2%) and sampling glitches in 20Hz–20kHz audio band. | Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs) into a single ADC channel in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of high-impedance sources with minimal loading error. Use Value: 2nA off-leakage and rail-to-rail capability preserve signal integrity across wide temperature ranges (0°C to +70°C). |
| Battery-Operated Equipment | Communications Circuits |
Use Scenario: Power-path management and signal isolation in handheld test equipment with dual battery banks. IC Role / Device Role / Timing Role: Dual-pole switch isolating analog measurement circuits from charging subsystems during active use. Use Value: Inhibit input allows synchronous shutdown of both poles during battery-swapping, preventing transient coupling. | Use Scenario: Reconfiguring RF front-end signal paths (e.g., antenna diversity, filter bank selection) in sub-GHz ISM-band transceivers. IC Role / Device Role / Timing Role: Low-capacitance (4pF NO-off, 12pF COM-on) analog switch minimizing insertion loss up to 50MHz. Use Value: -74dB crosstalk and -75dB off-isolation maintain signal separation between adjacent RF channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675ETB+ | 10-pin TDFN-EP (3mm × 3mm); 150Ω RON at +5V; -40°C to +85°C temp range | Higher performance and extended temperature rating; requires exposed-pad soldering | Select when wider operating temperature or lower on-resistance is required; not pin-compatible due to different package footprint |
| TMUX6219RUCR | 16-pin WQFN; 3.5Ω RON at +5V; 1.8V–5.5V supply; integrated fault protection | Lower RON and supply flexibility; adds overvoltage fault detection and current limiting | Choose for enhanced robustness in industrial sensing; larger package and different pinout preclude drop-in replacement |
Compared with MAX4525CUB+, MAX4675ETB+ offers tighter RON matching and extended temperature support but demands rework for TDFN layout, while TMUX6219RUCR provides superior conduction and protection at the cost of board area and pinout redesign - neither is pin-compatible, and both require schematic and layout updates.
Availability
MAX4525CUB+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across commercial temperature grades.
Supply support for MAX4525CUB+ 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 demanding industrial, medical, and communications applications.
The MAX4525CUB+ belongs to Maxim's low-voltage analog switch family, engineered specifically for space-constrained, battery-powered systems needing rail-to-rail signal integrity and logic-compatible control without auxiliary supplies.
FAQ
What is the maximum supply voltage rating for the MAX4525CUB+?
The MAX4525CUB+ has an absolute maximum supply voltage (V+) of +13V. Continuous operation is specified from +2V to +12V. Exceeding +13V risks permanent damage due to internal ESD diode breakdown. The device is optimized for stable performance at +3V and +5V, where on-resistance and leakage are characterized and guaranteed across temperature.
Does the MAX4525CUB+ support bidirectional signal flow?
Yes, the MAX4525CUB+ supports fully bidirectional analog signal flow on all NO_, NC_, and COM_ terminals. Its CMOS transmission-gate structure imposes no inherent directionality - voltage and current pass equally well from COM to NO/NCA or vice versa, provided signals remain within the 0V to V+ range. This makes MAX4525CUB+ suitable for both input multiplexing and output demultiplexing in the same design.
How does the INH pin function in the MAX4525CUB+?
The INH (inhibit) pin on the MAX4525CUB+ is an active-high control that overrides all address inputs (ADDA, ADDB) to force all internal switches into the open state. When INH = high (≥2.4V at +5V supply), both DPDT poles disconnect simultaneously - COMA floats from NOA/NCA, and COMB floats from NOB/NCB. This provides hardware-level signal isolation independent of address logic, useful for power sequencing and fault containment.
What is the guaranteed on-resistance match between channels for the MAX4525CUB+?
The MAX4525CUB+ guarantees a maximum on-resistance match (∆RON) of 8Ω at +5V supply and +25°C. This specification represents the difference between the highest and lowest RON values measured across all four switched paths (COMA–NOA, COMA–NCA, COMB–NOB, COMB–NCB). Tight matching ensures consistent gain, phase, and settling behavior when routing differential or parallel signals.
Is the MAX4525CUB+ compatible with 3.3V logic systems?
The MAX4525CUB+ is not directly compatible with 3.3V-only logic systems when operated at +5V supply, because its logic thresholds (0.8V low / 2.4V high) assume a +5V V+ rail. However, it can operate from a +3.3V supply - where VIH is 1.0V min and VIL is 0.5V max - enabling native interface with 3.3V microcontrollers, provided analog signals stay within 0V to +3.3V. At +3.3V, RON increases to ~350Ω (typ).
MAX4525CUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4525CUB+ FAQ
1.How can I place an order for MAX4525CUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4525CUB+ 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 MAX4525CUB+ reliable?
The price and inventory of MAX4525CUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4525CUB+ is usually 5 days.
3.What payment methods are accepted for MAX4525CUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4525CUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4525CUB+?
MAX4525CUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4525CUB+ 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 MAX4525CUB+?
For technical support, including MAX4525CUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4525CUB+ requirements.
6.How does Aetrix verify that MAX4525CUB+ is sourced from the original manufacturer or authorized distributors?
All MAX4525CUB+ 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 MAX4525CUB+ meets industry standards.
7.What is the process for return or replacement of MAX4525CUB+?
All MAX4525CUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4525CUB+, 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 MAX4525CUB+ part is unused and in its original packaging.
Return procedure for MAX4525CUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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