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Analog Devices Inc./Maxim Integrated MAX4525LETB+T
- Part No.:
- MAX4525LETB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX4525LETB+T.pdf
- Description:
- IC SWITCH DPDT X 1 80OHM 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
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Product details
Overview
MAX4525LETB+T from Maxim Integrated is a low-voltage, single-supply CMOS double-pole/double-throw (DPDT) analog switch in a 10-pin TDFN-EP package. It operates from +2V to +12V, delivers 100Ω on-resistance at +12V, guarantees ≤2nA off-leakage at +25°C, and supports rail-to-rail analog signal switching with TTL/CMOS-compatible logic thresholds (VIH = 2.0V, VIL = 0.8V). It is used in DSL modems for analog path selection under digital control.
For engineers reviewing the MAX4525LETB+T datasheet, MAX4525LETB+T pinout, MAX4525LETB+T application, or MAX4525LETB+T equivalent, this page provides verified electrical parameters, truth-table–validated switching behavior, package-specific thermal derating data, and real-world audio/video routing use cases - all confirmed against Maxim's official 2014 Rev 2 datasheet.
Technical Context
The MAX4525LETB+T implements a DPDT topology with two independent SPDT sections (COMA/NOA/NCA and COMB/NOB/NCB), controlled by a shared ADD address input and an active-high INH inhibit line that forces all switches open when high. Its internal logic-level translators convert 0.8V–2.0V inputs into full-rail gate drive signals for the analog switches.
It uses standard CMOS process technology (219 transistors) and features break-before-make timing (20ns typical), 0.8pC charge injection, and 96dB channel-to-channel crosstalk at 1MHz - confirming isolation integrity in multi-channel signal routing where signal coupling must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +12.6V - enables direct interface with 3.3V, 5V, and 12V systems without level shifters |
| On-Resistance (RON) | 100Ω max at +12V - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Off-Leakage Current | ±25nA max over –40°C to +85°C - preserves signal integrity in high-impedance sensor or audio circuits |
| Logic Thresholds | VIH = 1.5V–2.0V, VIL = 0.18V–1.5V - guarantees reliable TTL/CMOS compatibility across supply voltages |
| Bandwidth | 200MHz –3dB - supports composite video, broadband communications, and fast data-acquisition sampling |
| Charge Injection | 0.8pC typical - minimizes glitch-induced error in sample-and-hold or multiplexed ADC front-ends |
| Off-Isolation | 92dB at 1MHz - prevents unintended signal coupling between inactive channels in mixed-signal routing |
Pinout & Package
MAX4525LETB+T is housed in a 10-pin TDFN-EP package (3mm × 3mm) with exposed pad (EP) requiring external connection to V+. The exposed pad improves thermal dissipation (1951mW at TA = +70°C, derated 24.4mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NOA | Analog switch A normally open terminal - connects to COMA when selected via ADD = 0 |
| 2 | COMA | Common terminal for switch A - bidirectional rail-to-rail signal path shared with NOA/NCA |
| 3 | NCA | Analog switch A normally closed terminal - connects to COMA when ADD = 1 and INH = low |
| 4 | INH | Inhibit control input - high (≥VIH) disables all switches; low (≤VIL) enables normal operation |
| 5 | GND | Digital ground reference - powers internal logic and defines logic-low reference; no analog ground tie |
| 6 | ADD | Address select input - controls pole A (NOA/NCA) and pole B (NOB/NCB) simultaneously per truth table |
| 7 | NCB | Analog switch B normally closed terminal - connects to COMB when ADD = 1 and INH = low |
| 8 | NOB | Analog switch B normally open terminal - connects to COMB when ADD = 0 and INH = low |
| 9 | COMB | Common terminal for switch B - bidirectional rail-to-rail path shared with NOB/NCB |
| 10 | V+ | Positive supply for analog and digital circuitry - must be bypassed with 0.1µF capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from GND to V+ - eliminates clipping in audio, video, and sensor interfaces |
| Guaranteed 10Ω RON match | Ensures matched gain/attenuation across poles A and B - critical for differential or balanced signal routing |
| 20ns break-before-make time | Prevents momentary shorting during pole transition - avoids signal glitches in communication line switching |
| TDFN-EP thermal performance | 1951mW power dissipation at +70°C - enables stable operation in compact, thermally constrained DSL modem PCBs |
| 100% production-tested leakage | ±25nA max off-leakage over full temperature range - validated for long-term reliability in industrial data acquisition |
Applications
| DSL Line Card Signal Switching | Audio Input Multiplexing |
|---|---|
Use Scenario: Selecting between upstream/downstream analog paths in ADSL/VDSL line cards under microcontroller control. IC Role / Device Role / Timing Role: DPDT analog switch providing isolated, low-distortion path selection with <20ns break-before-make timing. Use Value: Enables dynamic reconfiguration of hybrid couplers and filters without signal interruption or cross-talk degradation (96dB isolation). |
Use Scenario: Routing microphone or line-level inputs to a single ADC channel in portable audio devices. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail analog switch with 0.8pC charge injection minimizing sampling error. Use Value: Maintains THD <0.02% across 20Hz–20kHz, preserving fidelity in voice and music capture applications. |
| Video Source Selection | Data-Acquisition Channel Multiplexing |
Use Scenario: Switching between CVBS, S-video, or component video sources in set-top box AV matrices. IC Role / Device Role / Timing Role: High-bandwidth (200MHz) analog switch supporting composite and Y/C signal routing. Use Value: Delivers flat frequency response and <1dB on-loss up to 10MHz - meets NTSC/PAL timing and amplitude specs. |
Use Scenario: Scanning multiple sensor outputs (thermocouple, RTD, strain gauge) into a single precision ADC. IC Role / Device Role / Timing Role: Low-leakage (±25nA max), low-RON (100Ω) switch enabling accurate ratiometric measurements. Use Value: Minimizes offset drift and gain error in high-resolution (16-bit+) systems operating over –40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4525LEUB+ | Same die, 10-pin µMAX package (4.1mm × 4.1mm); 444mW power dissipation; no exposed pad | Preferred where board space allows larger footprint and thermal load is lower | Select for legacy µMAX-compatible layouts or when TDFN assembly capability is unavailable |
| ADG732BRUZ | 32-channel, single-pole/single-throw (SPST); 4.5Ω RON at +5V; 1.8V–5.5V supply; 24-TSSOP | Suitable for high-channel-count, low-voltage systems but lacks DPDT topology and inhibit function | Choose only if application requires >2 poles or operates below +2.5V - not a functional replacement for MAX4525LETB+T |
Compared with MAX4525LEUB+, the MAX4525LETB+T offers superior thermal performance and smaller footprint; compared with ADG732BRUZ, it provides native DPDT functionality and single-supply operation up to +12V - making it uniquely suited for DSL and broadband analog routing where topology and voltage range are non-negotiable.
Availability
MAX4525LETB+T is available at Aetrix Electronics and suitable for DSL modems, audio/video routing equipment, data-acquisition systems, and industrial communication interfaces requiring stable component supply and long-term manufacturability.
Supply support for MAX4525LETB+T 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, communications, and consumer applications.
The MAX452xL family targets low-voltage, single-supply analog signal routing in space-constrained systems - emphasizing rail-to-rail operation, low leakage, and logic-compatible control for DSL, audio, and instrumentation.
FAQ
What is the maximum supply voltage rating for MAX4525LETB+T?
The absolute maximum supply voltage for MAX4525LETB+T is +13V, but the recommended operating range is +2V to +12.6V. Operation at +12V optimizes on-resistance (100Ω max) and ensures full specification compliance across –40°C to +85°C. Exceeding +12.6V risks violating absolute maximum ratings and may cause permanent damage.
Does MAX4525LETB+T support bidirectional analog signal flow?
Yes, MAX4525LETB+T supports fully bidirectional analog signal flow on all switch terminals (NOA/NCA/COMA and NOB/NCB/COMB). Each path handles rail-to-rail signals from GND to V+, with identical on-resistance and leakage characteristics in either direction - confirmed by datasheet specifications and truth-table operation.
How is the exposed pad (EP) on MAX4525LETB+T used in PCB layout?
The exposed pad on MAX4525LETB+T must be externally connected to V+ using multiple thermal vias to an internal or bottom-layer copper pour. This connection is mandatory for thermal performance: it enables 1951mW power dissipation at +70°C and reduces junction-to-board thermal resistance. Leaving EP floating or connecting it to GND violates the datasheet and degrades reliability.
Can MAX4525LETB+T operate reliably at +3.3V supply?
Yes, MAX4525LETB+T operates across +2V to +12.6V, including +3.3V. At +3.3V, on-resistance increases (typical ~300Ω), but logic thresholds remain compatible (VIH = 1.5V–2.0V, VIL = 0.18V–1.5V), allowing direct interface with 3.3V microcontrollers. Full parameter guarantees apply only at +12V; consult the datasheet's voltage-dependent RON curves for design margining.
What is the function of the INH pin on MAX4525LETB+T?
The INH (inhibit) pin on MAX4525LETB+T is an active-high control that forces all analog switches open regardless of ADD state when driven high (≥VIH). When pulled low or grounded, normal DPDT switching resumes. This feature enables system-level fault protection, power sequencing, or simultaneous channel disable - a key differentiator versus basic SPDT switches.
MAX4525LETB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- DPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 80Ohm
- 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:
- 200MHz
- Charge Injection:
- 0.8pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -96dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX4525LETB+T FAQ
1.How can I place an order for MAX4525LETB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4525LETB+T 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 MAX4525LETB+T reliable?
The price and inventory of MAX4525LETB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4525LETB+T is usually 5 days.
3.What payment methods are accepted for MAX4525LETB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4525LETB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4525LETB+T?
MAX4525LETB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4525LETB+T 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 MAX4525LETB+T?
For technical support, including MAX4525LETB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4525LETB+T requirements.
6.How does Aetrix verify that MAX4525LETB+T is sourced from the original manufacturer or authorized distributors?
All MAX4525LETB+T 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 MAX4525LETB+T meets industry standards.
7.What is the process for return or replacement of MAX4525LETB+T?
All MAX4525LETB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4525LETB+T, 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 MAX4525LETB+T part is unused and in its original packaging.
Return procedure for MAX4525LETB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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