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Analog Devices Inc./Maxim Integrated MAX4603EWE+
- Part No.:
- MAX4603EWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4603EWE+.pdf
- Description:
- IC SW SPST-NO/NCX4 2.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,772
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Product details
Overview
MAX4603EWE+ 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, ±4.5V to ±20V dual-supply or +4.5V to +36V 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 required.
For engineers reviewing the MAX4603EWE+ datasheet, MAX4603EWE+ pinout, MAX4603EWE+ application, or MAX4603EWE+ equivalent, key selection criteria include guaranteed RON match (≤0.5Ω), off-leakage ≤2.5nA at +85°C, TTL/CMOS-compatible logic thresholds, and 16-pin wide SO package compatibility with industrial temperature range (-40°C to +85°C).
Technical Context
The MAX4603EWE+ implements four independent CMOS transmission gates in a single monolithic IC, each with separate digital control inputs and bidirectional analog signal paths. Its architecture supports rail-to-rail analog voltage swing across COM–NO and COM–NC terminals, with matched on-resistance and flat RON over full signal range - critical for precision multiplexing and low-harmonic distortion.
It features dual- or single-supply flexibility: V+ and V− pins accept ±4.5V to ±20V, while single-supply mode uses V+ = +4.5V to +36V and V− tied to GND. Logic interface operates at VL = 5V with TTL/CMOS thresholds (0.8V low / 2.4V high), ensuring robust switching across supply configurations without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal voltage drop and power loss in signal paths up to ±10V analog swing. |
| RON Match Between Channels | 0.5Ω max - enables precise channel-to-channel gain matching in instrumentation and multiplexer applications. |
| RON Flatness | 0.5Ω max over signal range - maintains consistent attenuation and linearity across full input voltage span. |
| Off-Leakage Current | 2.5nA max at +85°C - preserves signal integrity in high-impedance sensor or sample-and-hold circuits. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports industrial, telecom, and avionics power architectures. |
| Logic Thresholds | 0.8V (low), 2.4V (high) - guarantees direct interface with standard TTL/CMOS controllers at +12V or ±15V supplies. |
| Turn-On/Off Time | 160ns / 170ns typical (VCOM = 10V) - enables fast switching in data acquisition and communication routing. |
Pinout & Package
MAX4603EWE+ is housed in a 16-pin Wide SO (SOIC-W) package, 7.5mm body width, 1.27mm pitch, RoHS-compliant, with exposed pad not present. Pin 1 marked by beveled corner or dot; thermal resistance θJA = 9.52mW/°C above +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - active-high logic drives NO/NC state per channel; inverted logic sense per switch type. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path connection point for all four SPST switches. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - connected to COM when IN = 0; MAX4603 uses NC1, NC2, NO3, NO4. |
| 4 | V− | Negative analog supply - tied to GND for single-supply operation; must be sequenced after V+. |
| 5 | GND | Digital/analog ground reference - shared return for logic and analog sections; decoupling recommended. |
| 12 | VL | Logic supply input - accepts 5V; sets logic threshold levels independent of analog supply rails. |
| 13 | V+ | Positive analog supply - supports up to +36V; defines upper analog signal limit and RON performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping - essential for audio, sensor, and industrial signal conditioning. |
| Guaranteed RON Match (≤0.5Ω) | Enables accurate channel balancing in differential or multi-path measurement systems without calibration. |
| TTL/CMOS-Compatible Inputs | Eliminates need for external level shifters when interfacing with microcontrollers, FPGAs, or logic families at +12V or ±15V. |
| ESD Protection > 2000V | Meets Method 3015.7 - improves board-level robustness during handling and system integration. |
| Low Charge Injection (20pC typ) | Minimizes voltage glitches in sample-and-hold or switched-capacitor circuits, preserving signal fidelity. |
Applications
| Audio-Signal Routing | PBX / PABX Systems |
|---|---|
|
Use Scenario: Dynamic reconfiguration of microphone, speaker, and line-level audio paths in conferencing hardware. IC Role / Device Role / Timing Role: Quad SPST switch providing isolated, low-distortion analog signal path selection under microcontroller control. Use Value: 2.5Ω RON and 0.5Ω match ensure uniform gain across channels; rail-to-rail operation preserves full dynamic range of ±10V audio signals. |
Use Scenario: Call routing and trunk interface management in enterprise telephony systems with mixed analog/digital signaling. IC Role / Device Role / Timing Role: Signal path isolation and crosspoint switching between line cards, codecs, and hybrid circuits. Use Value: Dual-supply capability (±15V) matches legacy telecom voltage standards; <2.5nA off-leakage prevents crosstalk-induced noise in high-impedance tip/ring lines. |
| Automatic Test Equipment (ATE) | Avionics Signal Conditioning |
|
Use Scenario: Multiplexing of DUT stimulus/response signals in modular ATE racks requiring high channel density and reliability. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays - enabling faster test cycles and longer service life. Use Value: 160ns turn-on time accelerates test throughput; 2000V ESD rating withstands lab handling; -40°C to +85°C rating supports extended environmental testing. |
Use Scenario: Sensor signal routing and redundancy switching in flight control and navigation subsystems operating under extreme thermal conditions. IC Role / Device Role / Timing Role: Analog signal path selector for inertial measurement units (IMUs), transducers, and ADC front-ends. Use Value: Guaranteed RON flatness (0.5Ω) ensures stable gain across −55°C to +85°C operational envelope; low leakage avoids drift in high-Z bridge sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG465BRUZ | Quad SPST, 4.5Ω RON max, +3V to +16V single-supply only, no dual-supply support. | Limited to lower-voltage industrial and medical systems; lacks ±20V dual-supply flexibility for telecom/ATE. | Select when cost sensitivity outweighs supply flexibility and RON performance is acceptable at 4.5Ω. |
| TS5A3157DCUR | Single-pole double-throw (SPDT), 0.75Ω RON, +1.65V to +5.5V only, 6-pin SC70 package. | Not functionally equivalent: SPDT vs SPST, different channel count, incompatible pinout and voltage range. | Consider only for space-constrained, low-voltage designs requiring SPDT topology - not a drop-in replacement. |
Compared with ADG465BRUZ and TS5A3157DCUR, the MAX4603EWE+ uniquely delivers quad SPST topology with dual-supply operation, sub-3Ω RON, and industrial temperature grade in a standard 16-pin wide SO package - making it optimal for high-reliability, multi-voltage analog routing where channel independence and signal integrity are critical.
Availability
MAX4603EWE+ is available at Aetrix Electronics and suitable for automatic test equipment, PBX systems, and avionics signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX4603EWE+ 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 analog signal routing in environments demanding low on-resistance, tight channel matching, and robust supply flexibility - targeting relay replacement and precision instrumentation.
FAQ
What is the maximum supply voltage rating for MAX4603EWE+?
The MAX4603EWE+ supports absolute maximum ratings of V+ to GND = −0.3V to +44V and V− to GND = +0.3V to −44V. For reliable operation, use within specified ranges: +4.5V to +36V (single supply) or ±4.5V to ±20V (dual supply). Exceeding these limits risks permanent damage, even briefly.
Does MAX4603EWE+ support rail-to-rail analog signal operation?
Yes, the MAX4603EWE+ supports rail-to-rail analog signal handling - meaning signals from V− to V+ can pass through the switch without clipping or distortion. This is confirmed in the General Description and Electrical Characteristics tables, where input voltage range is specified as V− to V+ under all tested conditions.
What is the logic configuration of the four switches in MAX4603EWE+?
The MAX4603EWE+ contains two normally closed (NC) switches (channels 1 and 2) and two normally open (NO) switches (channels 3 and 4). When INx = 0V, NCx is connected to COMx and NOx is disconnected; when INx = 2.4V, NCx opens and NOx closes - as shown in the functional diagram on page 1 of the datasheet.
Can MAX4603EWE+ operate with a 5V logic supply while using ±15V analog supplies?
Yes. The MAX4603EWE+ separates logic and analog domains: VL pin accepts 5V for TTL/CMOS-compatible thresholds, while V+ and V− support ±15V analog operation. This allows clean digital control from a 5V MCU while switching ±10V analog signals - verified in the "Electrical Characteristics-Dual Supplies" table.
Is the MAX4603EWE+ pinout compatible with other MAX460x variants like MAX4601EWE+ or MAX4602EWE+?
Yes - all MAX460x variants (MAX4601/MAX4602/MAX4603) share identical pinouts and package footprints across the same temperature and package grades. The only functional difference lies in internal switch configuration (NC-only, NO-only, or mixed), not pin assignment or electrical interface.
MAX4603EWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4603EWE+ FAQ
1.How can I place an order for MAX4603EWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4603EWE+ 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 MAX4603EWE+ reliable?
The price and inventory of MAX4603EWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4603EWE+ is usually 5 days.
3.What payment methods are accepted for MAX4603EWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4603EWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4603EWE+?
MAX4603EWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4603EWE+ 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 MAX4603EWE+?
For technical support, including MAX4603EWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4603EWE+ requirements.
6.How does Aetrix verify that MAX4603EWE+ is sourced from the original manufacturer or authorized distributors?
All MAX4603EWE+ 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 MAX4603EWE+ meets industry standards.
7.What is the process for return or replacement of MAX4603EWE+?
All MAX4603EWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4603EWE+, 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 MAX4603EWE+ part is unused and in its original packaging.
Return procedure for MAX4603EWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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