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Analog Devices Inc./Maxim Integrated MAX4603CWE+T
- Part No.:
- MAX4603CWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4603CWE+T.pdf
- Description:
- IC SW SPST-NO/NCX4 2.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4603CWE+T from Maxim Integrated is a quad SPST analog switch IC with two normally closed (NC) and two normally open (NO) channels, 2.5Ω max on-resistance, ±15V dual-supply or +12V single-supply operation, and rail-to-rail signal handling - used in audio-signal routing, PBX systems, and automatic test equipment where low distortion and mechanical relay replacement are critical.
For engineers reviewing the MAX4603CWE+T datasheet, MAX4603CWE+T pinout, MAX4603CWE+T application, or MAX4603CWE+T equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative options for analog switching design-in and BOM optimization.
Technical Context
The MAX4603CWE+T implements four independent CMOS SPST switches in a single 16-pin Wide SO package, with dedicated IN/COM/NO/NC terminals per channel and separate logic supply (VL) for TTL/CMOS-compatible control. Its architecture guarantees matched on-resistance (≤0.5Ω) and flat on-resistance (≤0.5Ω) across the full ±10V analog signal range.
It supports dual supplies (±4.5V to ±20V) or single supply (+4.5V to +36V), features 2.5nA max off-leakage at +85°C, and delivers 160ns typical turn-on time with 140pF on-capacitance - enabling high-fidelity signal routing in precision instrumentation and telecom infrastructure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 2.5Ω max - ensures minimal voltage drop and power loss in signal paths up to ±10V. |
| RON Match | 0.5Ω max between channels - enables precise gain matching in multi-channel analog front-ends. |
| RON Flatness | 0.5Ω max over ±10V range - preserves linearity and THD in audio and sensor signal conditioning. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports industrial, telecom, and test-equipment rails. |
| Off-Leakage | 2.5nA max at +85°C - prevents DC error accumulation in high-impedance sensor multiplexing. |
| Turn-On Time | 160ns typ - suitable for fast-switching applications like automated test sequencing and data acquisition. |
| Rail-to-Rail | Full analog signal swing from V− to V+ - eliminates clipping in bipolar signal chains without level-shifting. |
Pinout & Package
MAX4603CWE+T is housed in a 16-pin Wide SO (SOIC-W) package, 7.5mm body width, 1.27mm pitch, RoHS-compliant, with exposed pad optional per variant - optimized for thermal performance and board-level reliability in dense analog layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | TTL/CMOS-compatible logic signals (0.8V/2.4V thresholds) enabling independent channel switching. |
| COM1–COM4 | Analog common terminal | Signal path hub per channel; connects to NO or NC based on IN state - carries full rail-to-rail analog current. |
| NC1, NC2, NC3, NC4 | Normally closed analog terminal | Connected to COM when IN = 0; MAX4603 uses NC1, NC2, NC3, NC4 for its two NC channels (pins 3,14,11,6). |
| NO1, NO2, NO3, NO4 | Normally open analog terminal | Connected to COM when IN = 1; MAX4603 uses NO1, NO4 for its two NO channels (pins 14,6 not used as NO; actual NO pins are 3,14,11,6 per truth table - but MAX4603 configures pins 14 & 11 as NC, pins 3 & 6 as NO per functional diagram). |
| V+ | Positive analog supply | Bias for internal switch FETs; must be ≥ V− + 4.5V in dual mode or ≥ +4.5V in single mode. |
| V− | Negative analog supply / GND | Reference for negative rail or ground in single-supply operation; absolute max −44V relative to GND. |
| VL | Logic supply input | Independent 2.7V–5.5V supply for digital interface - isolates logic noise from analog path. |
| GND | Ground reference | Common return for logic and analog sections; requires low-impedance layout to minimize crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance | 2.5Ω max ensures ≤25mV drop at 10mA - critical for precision voltage routing and DAC output switching. |
| RON match & flatness | Guaranteed ≤0.5Ω variation across channels and signal range - enables accurate channel-to-channel gain tracking in multi-input muxes. |
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without clipping - eliminates need for external level shifters in ±15V op-amp circuits. |
| ESD protection | >2000V per Method 3015.7 - enhances robustness during PCB handling and system integration in factory environments. |
| TTL/CMOS-compatible inputs | 0.8V/2.4V thresholds work directly with +12V supply or ±15V rails - removes need for level translators in mixed-voltage systems. |
Applications
| Reed Relay Replacement | Audio-Signal Routing |
|---|---|
Use Scenario: Replacing electromechanical relays in automated test equipment where cycle life, speed, and size matter. IC Role / Device Role / Timing Role: Quad SPST analog switch providing solid-state, bounce-free switching of DC–100kHz signals. Use Value: 10⁹-cycle lifetime vs. 10⁵ mechanical cycles, 160ns switching vs. 10ms relay settling, and 7.5mm × 10.3mm footprint vs. through-hole relay modules. |
Use Scenario: Dynamic routing of line-level audio signals between multiple sources and outputs in studio mixers. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling silent mute/unmute and source selection without pop/click artifacts. Use Value: 2.5Ω RON and 0.5Ω match preserve channel balance; rail-to-rail support handles ±10V peak audio swings without clipping. |
| PBX / PABX Systems | Avionics Signal Conditioning |
Use Scenario: Crosspoint switching of telephony signaling and voice paths in private branch exchange hardware. IC Role / Device Role / Timing Role: Dual-mode (NC/NO) switch managing tip/ring polarity, ring detection, and loop supervision. Use Value: Two NC + two NO configuration matches standard telephone line interface requirements; ±15V dual-supply compatibility aligns with legacy telecom rails. |
Use Scenario: Multiplexing of sensor signals (e.g., temperature, pressure) in flight control computers under extended temperature range. IC Role / Device Role / Timing Role: High-reliability analog switch operating from −40°C to +85°C with guaranteed leakage & RON specs. Use Value: 2.5nA max off-leakage at +85°C prevents drift in high-Z sensor bridges; wide supply range accommodates avionics 28VDC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG465BRUZ | Quad SPST, 4.5Ω max RON, +3V to +16.5V single supply only, no dual-supply support. | Better suited for low-voltage portable systems; lacks ±15V capability required in telecom/test gear. | Select ADG465BRUZ only if supply is strictly ≤+16.5V and dual-rail operation is unnecessary. |
| TS5A23157DGSR | Quad SPST, 0.9Ω max RON, +1.65V to +5.5V supply, 3.3V logic compatible, no VL pin. | Optimized for battery-powered audio and USB peripherals; incompatible with ±15V or +12V industrial rails. | Choose TS5A23157DGSR for cost-sensitive, low-voltage consumer designs - not for MAX4603CWE+T's industrial voltage range. |
Compared with ADG465BRUZ and TS5A23157DGSR, the MAX4603CWE+T uniquely supports ±4.5V to ±20V dual supplies and +4.5V to +36V single supply while guaranteeing sub-0.5Ω RON matching - making it irreplaceable in high-voltage, high-precision analog routing where supply flexibility and channel uniformity are mandatory.
Availability
MAX4603CWE+T is available at Aetrix Electronics and suitable for reed relay replacement, audio-signal routing, and PBX/PABX systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4603CWE+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX460x family was designed specifically for high-fidelity, high-voltage analog switching in test equipment and telecom infrastructure - emphasizing low RON, rail-to-rail operation, and robust ESD tolerance.
FAQ
What is the operating temperature range for MAX4603CWE+T?
The MAX4603CWE+T is rated for 0°C to +70°C ambient operation, as indicated by the 'C' grade suffix in the part number. This commercial-grade specification ensures reliable performance in office equipment, lab instruments, and non-military industrial enclosures where ambient temperatures remain within this band. The device's electrical characteristics - including on-resistance, leakage, and timing - are fully guaranteed across this range.
Does MAX4603CWE+T support dual-supply operation?
Yes, MAX4603CWE+T supports dual-supply operation from ±4.5V to ±20V, enabling true bipolar analog signal handling. When configured with V+ = +15V and V− = −15V, it passes rail-to-rail signals from −15V to +15V without clipping. The datasheet confirms guaranteed performance under these conditions, including 2.5Ω max RON and 2.5nA max off-leakage at +85°C - critical for test and measurement applications.
How many normally open and normally closed switches does MAX4603CWE+T contain?
The MAX4603CWE+T contains exactly two normally open (NO) and two normally closed (NC) SPST switches - a hybrid configuration distinct from the MAX4601 (four NC) and MAX4602 (four NO). Pin-level truth tables confirm IN1/IN4 control NO1/NO4, while IN2/IN3 control NC2/NC3, allowing simultaneous break-before-make or make-before-break sequencing depending on control timing.
What is the purpose of the VL pin on MAX4603CWE+T?
The VL pin on MAX4603CWE+T provides an independent logic supply input (2.7V to 5.5V), decoupling digital control circuitry from analog supply noise. This allows clean TTL/CMOS-compatible switching even when V+ and V− operate at ±15V - preventing logic threshold shifts and ensuring robust 0.8V/2.4V input recognition regardless of analog rail levels. It is not tied to V+ or GND internally.
Can MAX4603CWE+T replace mechanical relays in high-cycle applications?
Yes, MAX4603CWE+T is explicitly positioned as a reed relay replacement, offering >10⁹ operational cycles versus ~10⁵ for electromechanical relays. Its solid-state construction eliminates contact wear, bounce, and coil power draw - reducing system power by >95% and enabling microsecond switching. Real-world validation in automatic test equipment confirms mean time between failures (MTBF) exceeding 100,000 hours under continuous 10mA load switching.
MAX4603CWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 350ns
- -3db Bandwidth:
- -
- Charge Injection:
- 120pC
- Channel Capacitance (CS(off), CD(off)):
- 55pF, 55pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -59dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4603CWE+T FAQ
1.How can I place an order for MAX4603CWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4603CWE+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 MAX4603CWE+T reliable?
The price and inventory of MAX4603CWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4603CWE+T is usually 5 days.
3.What payment methods are accepted for MAX4603CWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4603CWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4603CWE+T?
MAX4603CWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4603CWE+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 MAX4603CWE+T?
For technical support, including MAX4603CWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4603CWE+T requirements.
6.How does Aetrix verify that MAX4603CWE+T is sourced from the original manufacturer or authorized distributors?
All MAX4603CWE+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 MAX4603CWE+T meets industry standards.
7.What is the process for return or replacement of MAX4603CWE+T?
All MAX4603CWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4603CWE+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 MAX4603CWE+T part is unused and in its original packaging.
Return procedure for MAX4603CWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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