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Analog Devices Inc./Maxim Integrated MAX4603CAE
- Part No.:
- MAX4603CAE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX4603CAE.pdf
- Description:
- IC SW SPST-NO/NCX4 2.5OHM 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,052
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Product details
Overview
MAX4603CAE from Maxim Integrated is a quad SPST analog switch IC with two normally open (NO) and two normally closed (NC) channels, 2.5Ω max on-resistance, ±15V dual-supply or +12V single-supply operation, and rail-to-rail signal handling-designed for precision audio routing and automated test equipment signal path switching.
For engineers reviewing the MAX4603CAE datasheet, MAX4603CAE pinout, MAX4603CAE application, or MAX4603CAE equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative parts for reed relay replacement, PBX signal matrix design, and low-distortion analog multiplexing.
Technical Context
The MAX4603CAE implements four independent CMOS SPST switches in a single 16-pin SSOP package, with two channels configured as NO and two as NC-enabling bidirectional signal routing without polarity constraints. Its matched on-resistance (≤0.5Ω between channels) and flat on-resistance (≤0.5Ω over ±10V signal range) ensure minimal gain error in instrumentation and audio paths.
Dual-supply operation (±4.5V to ±20V) or single-supply mode (+4.5V to +36V) supports industrial and telecom voltage rails. TTL/CMOS-compatible logic inputs (0.8V/2.4V thresholds) allow direct interfacing with microcontrollers and FPGAs without level-shifting when powered from ±15V or +12V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 2.5Ω max - ensures ≤0.025% gain error at 100mA load in precision current-sensing paths |
| RON Match | 0.5Ω max between channels - enables accurate channel-to-channel signal balancing in differential muxes |
| RON Flatness | 0.5Ω max over ±10V - maintains consistent insertion loss across full audio or sensor signal range |
| Off-Leakage Current | 2.5nA max at +85°C - preserves DC accuracy in high-impedance sensor front-ends and sample-hold circuits |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports legacy ±15V test gear and modern +12V embedded systems |
| Logic Thresholds | 0.8V low / 2.4V high - guarantees reliable switching with standard 5V TTL and 3.3V/5V CMOS controllers |
| Turn-On/Off Time | 160ns / 170ns typical - enables >1MHz multiplexing in data acquisition and digital audio routing |
Pinout & Package
MAX4603CAE is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, 5.0mm × 6.2mm body size, and exposed pad not present-optimized for compact PCB layouts in space-constrained test and telecom modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; active-high logic selects NO/NC state per channel |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; bidirectional signal path entry/exit points |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals; connected to COM when IN = 0V |
| 12 | VL | Logic supply input; decouples digital switching noise from analog V+/V− rails |
| 4 | V− | Negative analog supply; tied to GND for single-supply operation |
| 13 | V+ | Positive analog supply; sets upper rail for rail-to-rail signal swing |
| 5 | GND | Ground reference for logic and substrate; must be low-impedance for leakage control |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping-critical for ±10V sensor outputs and audio line-level routing |
| Guaranteed RON Match | ≤0.5Ω max mismatch enables <0.005% THD+N in stereo audio channel switching |
| TTL/CMOS-Compatible Inputs | Eliminates external level shifters when interfacing with 3.3V/5V microcontrollers in mixed-voltage systems |
| ESD Protection | >2000V HBM - protects against handling damage during assembly and field service in industrial environments |
| Low Charge Injection | 20pC typical - minimizes voltage glitch on high-impedance nodes in sample-and-hold and ADC front-ends |
Applications
| Reed Relay Replacement | Audio-Signal Routing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automatic test equipment (ATE) fixture boards where cycle life, speed, and size are critical. IC Role / Device Role / Timing Role: Quad SPST analog switch providing solid-state, bounce-free signal path selection with 160ns turn-on time. Use Value: Enables >1M cycles vs. 100k mechanical relay lifetime, eliminates contact wear, and reduces board area by 70%. |
Use Scenario: Routing line-level stereo signals in professional audio mixers and broadcast consoles requiring low crosstalk and zero click/pop. IC Role / Device Role / Timing Role: Dual NO/dual NC configuration allows seamless mute/unmute and source selection without signal interruption. Use Value: 55dB off-isolation at 1kHz and 20pC charge injection prevent audible artifacts during live switching. |
| PBX/PABX Systems | Avionics Signal Conditioning |
|
Use Scenario: Implementing programmable telephone line interface cards in private branch exchange systems with hot-swap capability. IC Role / Device Role / Timing Role: Analog switch isolating tip/ring lines during call setup while maintaining DC loop integrity. Use Value: 2.5Ω on-resistance ensures <0.1dB insertion loss across 600Ω telecom impedance, preserving voice fidelity. |
Use Scenario: Multiplexing sensor signals (e.g., temperature, pressure) in flight control computers where reliability and radiation tolerance matter. IC Role / Device Role / Timing Role: High-voltage tolerant switch (±20V dual supply) conditioning analog outputs before ADC sampling. Use Value: -40°C to +85°C operating range and 2.5nA off-leakage at +85°C maintain accuracy in unheated avionics bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1412BRUZ | Quad SPST, 1.8Ω max RON, ±15V supply, but only NO configuration (no NC channels) | Suitable for pure signal routing; cannot replicate MAX4603CAE's mixed NO/NC fail-safe topology | Select when lowest on-resistance is prioritized and NC functionality is unnecessary |
| TS5A23157DGSR | Single-supply only (+1.65V to +5.5V), 0.9Ω max RON, 10-pin VSSOP, no dual-supply support | Limited to low-voltage portable/audio devices; incompatible with ±15V ATE or telecom infrastructure | Choose for battery-powered interfaces where size and ultra-low RON outweigh voltage flexibility |
Compared with ADG1412BRUZ and TS5A23157DGSR, the MAX4603CAE uniquely combines dual-supply operation, mixed NO/NC topology, and guaranteed RON match-making it irreplaceable in fault-tolerant telecom line cards and reed-relay-replacement ATE fixtures requiring both make-before-break and break-before-make behavior.
Availability
MAX4603CAE is available at Aetrix Electronics and suitable for automated test equipment, PBX signal matrix design, and avionics sensor conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX4603CAE 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 series was designed specifically for high-fidelity, high-reliability analog signal routing in mission-critical test and telecom infrastructure-emphasizing low distortion, rail-to-rail operation, and robust ESD tolerance.
FAQ
What is the operating temperature range for MAX4603CAE?
The MAX4603CAE is rated for 0°C to +70°C operation, as indicated by the "C" grade suffix in its part number. This commercial-grade temperature range suits indoor test equipment, telecom central office hardware, and consumer/professional audio systems where ambient conditions remain controlled. The device is not qualified for extended industrial (-40°C to +85°C) use-those requirements are met by the MAX4603EAE variant.
Can MAX4603CAE operate from a single +5V supply?
No, the MAX4603CAE requires a minimum single-supply voltage of +4.5V, but its specified performance-including 2.5Ω max on-resistance and rail-to-rail signal handling-is guaranteed only at +12V or higher. At +5V, RON increases significantly (typical ~4Ω), and logic thresholds may become marginal. For true 5V operation, consider the MAX4617 or similar low-voltage optimized analog switches instead of the MAX4603CAE.
How does the mixed NO/NC configuration of MAX4603CAE benefit system design?
The MAX4603CAE's two NO and two NC channels enable fail-safe signal path design-for example, using NC switches to maintain default connectivity (e.g., safety shunt or bias path) while NO switches activate auxiliary functions (e.g., calibration injection). This eliminates need for external pull-up/down resistors or secondary control logic, reducing component count and improving reliability in PBX line cards and ATE stimulus/response systems.
Is MAX4603CAE pin-compatible with MAX4601CAE or MAX4602CAE?
Yes, all three variants-MAX4601CAE (quad NC), MAX4602CAE (quad NO), and MAX4603CAE (dual NO/dual NC)-share identical 16-pin SSOP packaging and pinout. Functionally, only the logic-to-switch mapping differs: MAX4603CAE assigns IN1/IN4 to NC channels and IN2/IN3 to NO channels, as confirmed in the truth table and pin configuration diagrams. No PCB redesign is needed when substituting within the same grade and package.
What is the maximum continuous current rating per switch in MAX4603CAE?
The MAX4603CAE supports ±200mA continuous current through each COM/NO/NC path, as specified in Absolute Maximum Ratings. This rating applies under derated power dissipation conditions and assumes adequate PCB copper area for thermal management. Exceeding ±200mA risks thermal runaway or parametric shift; for higher-current applications, parallel switching or discrete MOSFET solutions should be evaluated instead of relying on the MAX4603CAE alone.
MAX4603CAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SSOP
MAX4603CAE FAQ
1.How can I place an order for MAX4603CAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4603CAE 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 MAX4603CAE reliable?
The price and inventory of MAX4603CAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4603CAE is usually 5 days.
3.What payment methods are accepted for MAX4603CAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4603CAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4603CAE?
MAX4603CAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4603CAE 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 MAX4603CAE?
For technical support, including MAX4603CAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4603CAE requirements.
6.How does Aetrix verify that MAX4603CAE is sourced from the original manufacturer or authorized distributors?
All MAX4603CAE 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 MAX4603CAE meets industry standards.
7.What is the process for return or replacement of MAX4603CAE?
All MAX4603CAE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4603CAE, 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 MAX4603CAE part is unused and in its original packaging.
Return procedure for MAX4603CAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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