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Analog Devices Inc./Maxim Integrated MAX4603CPE
- Part No.:
- MAX4603CPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4603CPE.pdf
- Description:
- IC SW SPST-NO/NCX4 2.5OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,623
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Product details
Overview
The MAX4603CPE from Maxim Integrated is a quad SPST analog switch IC with two normally open (NO) and two normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 2.5Ω max on-resistance, 0.5Ω max RON match between channels, and 2.5nA max off-leakage at +85°C, operating from single +4.5V to +36V or dual ±4.5V to ±20V supplies. It is used in audio-signal routing, PBX systems, and automatic test equipment where low distortion and mechanical relay replacement are critical.
For engineers reviewing the MAX4603CPE datasheet, MAX4603CPE pinout, MAX4603CPE application, or MAX4603CPE equivalent, key selection criteria include verified RON flatness (0.4Ω typ), TTL/CMOS-compatible logic thresholds (+0.8V/+2.4V), guaranteed ESD protection (>2000V), and 16-pin plastic DIP package compatibility with through-hole prototyping and industrial control boards.
Technical Context
The MAX4603CPE implements four independent CMOS-based SPST switches in a single monolithic die, with dedicated IN1–IN4 digital control inputs driving two NO (pins 14, 6 and 1, 16) and two NC (pins 3, 11 and 9, 8) configurations. Its architecture supports bidirectional analog signal flow across COM/NO/NC terminals with matched channel characteristics.
It features separate analog supply pins (V+, V−), logic supply input (VL), and ground (GND), enabling independent biasing of analog and digital domains. The device guarantees operation over 0°C to +70°C and maintains ≤0.4Ω RON flatness across ±10V signal range under dual ±15V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω maximum - ensures minimal voltage drop and power loss in signal paths up to ±10V. |
| RON Match Between Channels | 0.5Ω maximum - enables precise gain matching in multi-channel instrumentation and audio summing circuits. |
| RON Flatness | 0.4Ω typical - maintains consistent attenuation across full analog signal range, critical for low-harmonic-distortion routing. |
| Off-Leakage Current | 2.5nA maximum at +85°C - preserves high-impedance node integrity in sensor front-ends and sample-hold stages. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports wide-range industrial and telecom power architectures. |
| Logic Thresholds | +0.8V low / +2.4V high - ensures reliable TTL/CMOS compatibility without level-shifting when using +12V or ±15V supplies. |
| Turn-On/Off Time | 160ns / 170ns typical - enables fast switching in automated test sequencing and multiplexed data acquisition. |
Pinout & Package
MAX4603CPE is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard through-hole mounting. Pin spacing is 0.1 inch, compatible with industry-standard PCB footprints and socketing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; active-high logic drives NO/NC state per channel configuration. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path connection points for each switch. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - connected to COM when IN = 0; MAX4603 uses NC1, NC2, NC3, NC4 on pins 3, 11, 9, 8 respectively. |
| 1, 16, 9, 8 | NO1–NO4 | Normally open analog terminals - connected to COM when IN = 1; MAX4603 uses NO1, NO4 on pins 1, 16 and NO2, NO3 on pins 14, 6. |
| 4 | V− | Negative analog supply - tied to GND for single-supply operation; sets lower rail for analog signal swing. |
| 5 | GND | Ground reference for logic and analog sections - requires low-impedance connection to minimize noise coupling. |
| 12 | VL | Logic supply input - accepts 5V for TTL/CMOS interface; decoupling capacitor required near pin. |
| 13 | V+ | Positive analog supply - defines upper analog rail; must be ≥ |V−| + 4.5V for proper operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping - essential for full-scale audio and sensor signal routing. |
| Guaranteed RON Match | ≤0.5Ω max mismatch between any two channels - enables accurate channel-to-channel tracking in differential or balanced systems. |
| ESD Protection | >2000V per Method 3015.7 - reduces risk of field failure during handling and board assembly in non-ESD-controlled environments. |
| Low Charge Injection | 20pC typical - minimizes voltage glitches at COM nodes during switching, critical for precision sample-and-hold and DAC output buffering. |
| Off-Isolation | −56dB typical at 1MHz - suppresses crosstalk between inactive channels in high-density multiplexers. |
Applications
| Audio-Signal Routing | PBX/PABX Systems |
|---|---|
Use Scenario: Selecting between multiple microphone or line-level inputs in a conferencing system. IC Role / Device Role / Timing Role: Quad SPST switch routing analog audio paths with minimal THD and interchannel crosstalk. Use Value: 2.5Ω RON and 0.4Ω flatness preserve signal fidelity across 20Hz–20kHz bandwidth without level-dependent distortion. |
Use Scenario: Managing analog trunk and extension lines in private branch exchange hardware. IC Role / Device Role / Timing Role: Relay-replacement switch controlling call setup, hold, and transfer paths in legacy telephony interfaces. Use Value: Dual ±15V operation and 2.5nA off-leakage ensure stable line impedance and low standby current in always-on telecom modules. |
| Automatic Test Equipment (ATE) | Avionics Signal Conditioning |
Use Scenario: Multiplexing DUT signals to measurement instruments in benchtop functional testers. IC Role / Device Role / Timing Role: Precision analog switch enabling programmable signal path selection with sub-200ns switching. Use Value: 160ns turn-on time and 0.5Ω RON match support high-throughput testing of op-amps and ADCs with traceable accuracy. |
Use Scenario: Routing sensor outputs (e.g., temperature, pressure) to flight data recorders or display units. IC Role / Device Role / Timing Role: Radiation-tolerant analog switch managing redundant analog signal chains in safety-critical avionics subsystems. Use Value: Guaranteed operation from 0°C to +70°C and >2000V ESD withstand allow deployment in unpressurized cabin environments without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4602CPE | Four NO-only configuration; identical RON, supply, and timing specs. | Suitable only where all four switches require normally open behavior - no NC functionality. | Select MAX4602CPE when full NO topology is required and NC capability is unnecessary. |
| ADG441BNZ | Quad SPST, 45Ω RON, single +3V to +30V supply, no dual-supply support. | Limited to lower-precision, lower-bandwidth applications due to higher RON and absence of ±V operation. | Choose ADG441BNZ only if cost sensitivity outweighs need for low RON, rail-to-rail swing, and dual-supply flexibility. |
Compared with MAX4602CPE and ADG441BNZ, the MAX4603CPE uniquely provides mixed NO/NC topology in a single package while maintaining 2.5Ω RON and dual-supply operation - enabling fail-safe signal routing and redundancy management not possible with purely NO or higher-RON alternatives.
Availability
MAX4603CPE is available at Aetrix Electronics and suitable for audio-signal routing, PBX systems, and automatic test equipment requiring stable component supply, long-term obsolescence management, and through-hole manufacturing compatibility.
Supply support for MAX4603CPE 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX460x family was designed for precision analog signal routing in systems requiring mechanical relay replacement, low distortion, and wide supply flexibility - targeting test instrumentation, telecom infrastructure, and aerospace signal conditioning.
FAQ
What is the maximum allowable supply voltage for MAX4603CPE?
The MAX4603CPE 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 may cause permanent damage, as confirmed in the Absolute Maximum Ratings table of the datasheet.
Does MAX4603CPE support rail-to-rail analog signal switching?
Yes, the MAX4603CPE supports rail-to-rail analog signal handling - signals from V− to V+ pass through the switch with minimal distortion. This is explicitly stated in the General Description and verified by the Input Voltage Range specification (VCOM_, VNO_, VNC_ = V− to V+) across all operating conditions.
How many NO and NC switches does MAX4603CPE contain?
The MAX4603CPE contains two normally open (NO) switches and two normally closed (NC) switches. This mixed configuration is defined in the General Description and confirmed in the Pin Configurations diagram, where IN1/IN4 control NO1/NO4 and IN2/IN3 control NC2/NC3.
What is the logic supply voltage requirement for MAX4603CPE?
The MAX4603CPE requires VL = 5V for TTL/CMOS-compatible logic interface, as specified in Electrical Characteristics tables and Functional Diagrams. The device accepts logic inputs with thresholds of +0.8V (low) and +2.4V (high), ensuring robust operation with standard 5V digital controllers without external level shifting.
Is MAX4603CPE pin-compatible with other MAX460x variants in the same package?
Yes, MAX4603CPE is pin-compatible with MAX4601CPE and MAX4602CPE in the 16-pin plastic DIP package. All share identical pin assignments for V+, V−, GND, VL, IN1–IN4, COM1–COM4, and NO/NC terminals - only the internal switch configuration (NO vs NC) differs, as shown in the Truth Tables and Pin Configurations section.
MAX4603CPE 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4603CPE FAQ
1.How can I place an order for MAX4603CPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4603CPE 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 MAX4603CPE reliable?
The price and inventory of MAX4603CPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4603CPE is usually 5 days.
3.What payment methods are accepted for MAX4603CPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4603CPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4603CPE?
MAX4603CPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4603CPE 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 MAX4603CPE?
For technical support, including MAX4603CPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4603CPE requirements.
6.How does Aetrix verify that MAX4603CPE is sourced from the original manufacturer or authorized distributors?
All MAX4603CPE 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 MAX4603CPE meets industry standards.
7.What is the process for return or replacement of MAX4603CPE?
All MAX4603CPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4603CPE, 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 MAX4603CPE part is unused and in its original packaging.
Return procedure for MAX4603CPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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