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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:3,810
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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, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative parts for precision analog switching design and sourcing decisions.
Technical Context
The MAX4603EWE implements four independent CMOS-based SPST switches in a single 16-pin Wide SO package, with dedicated IN/COM/NC/NO terminals per channel and separate VL logic supply input. Its architecture guarantees matched on-resistance (≤0.5Ω) and flat on-resistance (≤0.5Ω) across the full analog signal range.
It supports TTL/CMOS-compatible digital control inputs (VIN_H = 2.4V, VIN_L = 0.8V) and operates over –40°C to +85°C. Internal protection diodes clamp signals exceeding V+ or V–, and charge injection is limited to 20pC typical - critical for sample-and-hold and multiplexer accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal voltage drop and signal attenuation in precision analog paths. |
| RON Match Between Channels | 0.5Ω max - enables accurate channel-to-channel signal balancing in differential or multi-path routing. |
| Rail-to-Rail Signal Range | Supports analog signals from V– to V+ - eliminates level-shifting needs in wide-dynamic-range systems. |
| Off-Leakage Current | 0.5nA max at +85°C - preserves signal integrity in high-impedance sensor or timing circuits. |
| Turn-On/Off Time | 160ns / 170ns typical - suitable for moderate-speed multiplexing up to ~1MHz without significant settling delay. |
| Supply Voltage Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - accommodates industrial, telecom, and avionics power architectures. |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) - interoperable with standard microcontrollers and FPGAs without level shifters. |
Pinout & Package
MAX4603EWE is housed in a 16-pin Wide SO (SOIC-W) package with 1.27mm pitch, 10.3mm × 7.5mm body, and exposed pad not present. Pin functions are electrically isolated per channel and support mixed NC/NO configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - active-high logic determines NO/NC state per switch pair. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - connect to signal source or load; bidirectional current path. |
| 3, 6, 11, 14 | NC1, NC2, NC3, NC4 | Normally closed analog terminals - conduct when IN = 0V; MAX4603 uses NC1/NC2 only. |
| 12 | VL | Logic supply input - decouples digital interface from analog supplies; accepts 2.7V to 5.5V. |
| 4 | V− | Negative analog supply - tied to GND for single-supply operation; sets lower signal rail. |
| 13 | V+ | Positive analog supply - defines upper analog signal limit and powers internal switch array. |
| 5 | GND | Ground reference - common return for logic and analog sections; must be low-impedance. |
| 14, 11 | NO1, NO4 | Normally open analog terminals - conduct only when IN = high; MAX4603 uses NO1/NO4 only. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | ≤0.5Ω variation over full signal range - maintains consistent gain/attenuation in variable-amplitude paths. |
| Rail-to-rail analog capability | Signals swing from V− to V+ without clipping - simplifies front-end design in ±15V or +24V systems. |
| ESD protection | ≥2000V HBM - reduces risk of field failure during handling or system integration. |
| Low charge injection | 20pC typical - minimizes voltage glitches in sample-and-hold or switched-capacitor circuits. |
| Wide temperature range | –40°C to +85°C operation - qualified for industrial and avionics environments without derating. |
Applications
| Audio-Signal Routing | PBX / PABX Systems |
|---|---|
Use Scenario: Selecting between multiple microphone or line-level inputs in a conferencing unit. IC Role / Device Role / Timing Role: Quad SPST analog switch routing audio paths with minimal crosstalk and THD degradation. Use Value: 2.5Ω RON and <–56dB off-isolation preserve SNR and prevent audible switching artifacts. |
Use Scenario: Managing analog trunk and extension lines in enterprise telephony hardware. IC Role / Device Role / Timing Role: Replacing electromechanical relays for call setup/teardown and tone generation routing. Use Value: 200mA continuous current rating and rail-to-rail support handle -48V battery feed and AC ringing signals. |
| Automatic Test Equipment (ATE) | Avionics Signal Conditioning |
Use Scenario: Multiplexing DUT signals to measurement instruments in modular ATE racks. IC Role / Device Role / Timing Role: Low-leakage, low-RON analog switch enabling high-accuracy DC parametric testing. Use Value: 0.5nA max off-leakage at +85°C prevents measurement drift in picoampere-level leakage tests. |
Use Scenario: Switching sensor outputs (e.g., RTD, thermocouple) into shared ADC front-ends in flight control units. IC Role / Device Role / Timing Role: Precision analog multiplexer with guaranteed RON matching across channels. Use Value: ≤0.5Ω RON match ensures consistent gain calibration across all sensor channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG465BRUZ | Single-supply only (+3V to +16.5V); 4.5Ω RON; 16-TSSOP package. | Limited to lower-voltage systems; higher on-resistance increases insertion loss. | Choose when operating below +16.5V and board space favors TSSOP over Wide SO. |
| TS5A3157DCKR | Single-channel SPDT; 0.75Ω RON; +1.65V to +5.5V supply; SC70-6 package. | Not quad or SPST; requires four devices for equivalent function; unsuitable for ± supplies. | Consider only for low-voltage, space-constrained single-path designs - not a functional substitute. |
Compared with ADG465BRUZ and TS5A3157DCKR, the MAX4603EWE uniquely supports dual-supply operation up to ±20V, delivers lower on-resistance (2.5Ω vs. 4.5Ω/0.75Ω), and integrates two NC + two NO switches in one 16-pin Wide SO - making it optimal for industrial and telecom analog routing where supply flexibility and channel mix matter.
Availability
MAX4603EWE is available at Aetrix Electronics and suitable for automatic test equipment, PBX systems, and avionics signal conditioning requiring stable component supply, long-term lifecycle support, and guaranteed parametric compliance across –40°C to +85°C.
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) designs precision analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.
The MAX460x family targets high-fidelity analog switching applications - specifically engineered to replace mechanical relays with low-RON, rail-to-rail, and thermally stable performance in test, telecom, and aerospace systems.
FAQ
What is the maximum supply voltage rating for MAX4603EWE?
The MAX4603EWE supports absolute maximum analog supply 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 ±20V dual supply or +4.5V to +36V single supply. Exceeding these may cause permanent damage, as confirmed in the Absolute Maximum Ratings table of the MAX4603EWE datasheet.
Does MAX4603EWE support rail-to-rail analog signal switching?
Yes, the MAX4603EWE supports rail-to-rail analog signal handling - signals can swing from V– to V+ without clipping or distortion. This is explicitly guaranteed in the General Description and Electrical Characteristics sections, enabling direct interfacing with op-amps, sensors, and DACs operating at full supply rails.
What is the on-resistance matching specification for MAX4603EWE?
The MAX4603EWE guarantees on-resistance matching between channels of ≤0.5Ω maximum (ΔRON = RON(MAX) – RON(MIN)), measured across the full operating temperature range (–40°C to +85°C). This parameter is tested and specified in both dual- and single-supply conditions per the MAX4603EWE datasheet.
Can MAX4603EWE operate with a single 5V supply?
No - the MAX4603EWE minimum single-supply voltage is +4.5V, but its logic thresholds (0.8V/2.4V) and internal architecture require VL ≥ 2.7V and V+ ≥ 4.5V. A 5V single supply is valid and commonly used; however, V– must be connected to GND, and VL should be supplied at 5V or regulated 3.3V for reliable TTL/CMOS compatibility.
What package type is used for MAX4603EWE?
The MAX4603EWE uses a 16-pin Wide SO (SOIC-W) package, measuring 10.3mm × 7.5mm with 1.27mm lead pitch. This is confirmed in the Ordering Information table and Package Information section of the MAX4603EWE datasheet - distinct from SSOP or PDIP variants like MAX4603EAE or MAX4603EPE.
MAX4603EWE 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:
- -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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