Analog Devices Inc./Maxim Integrated MAX4609CPE
- Part No.:
- MAX4609CPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4609CPE.pdf
- Description:
- IC SW SPST-NO/NCX2 2.5OHM 16DIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MAX4609CPE from Maxim Integrated is a dual single-pole single-throw (SPST) CMOS analog switch with one normally closed (NC) and one normally open (NO) channel, 2.5Ω maximum on-resistance, rail-to-rail signal handling (±15V dual or +12V single supply), and 2.5nA max off-leakage at +85°C. It replaces electromechanical relays in test equipment and audio routing where low distortion and high reliability are required.
For engineers reviewing the MAX4609CPE datasheet, MAX4609CPE pinout, MAX4609CPE application, or MAX4609CPE equivalent, key selection criteria include guaranteed RON match (≤0.5Ω), flat on-resistance over signal range, TTL/CMOS-compatible logic thresholds, and dual ±4.5V to ±20V or single +4.5V to +36V operation.
Technical Context
The MAX4609CPE implements two independent SPST switches using BiCMOS process technology, enabling simultaneous control of separate analog paths with matched conduction characteristics. Its architecture supports rail-to-rail analog signals across the full supply range, with internal protection diodes clamping inputs exceeding V+ or V−.
Digital control inputs feature fixed +0.8V/–2.4V logic thresholds-ensuring compatibility with TTL and CMOS logic under both ±15V dual-supply and +12V single-supply conditions. The device guarantees ≤0.5Ω RON flatness and ≤0.5Ω inter-channel RON mismatch across temperature and signal voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max at ICCOM = 10mA, VNO/VNC = ±10V - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| RON Match Between Channels | 0.5Ω max - enables balanced gain/phase response in differential or dual-path signal routing. |
| RON Flatness | 0.5Ω max over full signal range - maintains consistent insertion loss regardless of input voltage level. |
| Off-Leakage Current | 2.5nA max at +85°C - preserves high-impedance node integrity in sensor interfaces and sample-hold circuits. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports industrial, test, and avionics power architectures without level-shifting. |
| Logic Input Thresholds | +0.8V (low), +2.4V (high) - ensures robust noise margin and direct interface with standard 5V TTL/CMOS controllers. |
| Turn-On / Turn-Off Time | 110ns / 150ns typical at VCOM = ±10V - suitable for medium-speed multiplexing up to ~3MHz switching rate. |
Pinout & Package
MAX4609CPE is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is located at the left end of the top row when viewed from the top with notch or dot oriented upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8, 10, 15 | No Connection (N.C.) | Not internally connected; recommended to tie to GND for improved off-isolation and EMI suppression. |
| 2, 7 | IN1, IN2 | Digital control inputs - active-high logic drives respective switch channels (IN1 controls NC1/COM1; IN2 controls NO2/COM2). |
| 4 | V− | Negative analog supply - connect to DGND for single-supply operation; must be ≥ –44V relative to GND. |
| 5 | GND | Analog/digital ground reference - common return for supplies, logic, and signal paths. |
| 9, 16 | NO1, NC2 | Normally open and normally closed terminals - NO1 is open when IN1 = low; NC2 is closed when IN2 = low. |
| 11, 14 | COM1, COM2 | Common analog terminals - bidirectional signal path shared between NO/NC contacts per channel. |
| 12 | VL | Logic supply input - accepts +2.7V to +5.5V; decoupling capacitor required for stable switching performance. |
| 13 | V+ | Positive analog supply - must be ≤ +44V relative to GND; sets upper rail for analog signal swing. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON match ≤0.5Ω | Enables precise amplitude tracking between dual signal paths without calibration in instrumentation front-ends. |
| Rail-to-rail analog signal handling | Supports full-swing signals from V− to V+ without clipping - critical for ±10V industrial sensor conditioning and audio line-level routing. |
| TTL/CMOS-compatible logic inputs | Eliminates need for external level shifters when interfacing with microcontrollers or FPGAs operating at +5V logic levels. |
| ESD protection >2kV (HBM) | Reduces risk of field failure during board assembly and system integration without requiring additional protection circuitry. |
| Low charge injection (45pC typical) | Minimizes voltage glitch on sampled nodes - essential for high-resolution data acquisition and sample-and-hold accuracy. |
Applications
| Reed Relay Replacement | Audio-Signal Routing |
|---|---|
|
Use Scenario: Replacing electromechanical reed relays in automated test equipment (ATE) fixture switching matrices. IC Role / Device Role / Timing Role: Dual SPST analog switch providing contactless, solid-state path selection for DC–1MHz stimulus/response signals. Use Value: Eliminates relay wear-out, bounce, and coil drive requirements while maintaining <2.5Ω path resistance and <2.5nA leakage at elevated temperature. |
Use Scenario: Channel selection and mute control in professional audio mixing consoles and digital stageboxes. IC Role / Device Role / Timing Role: Low-distortion analog switch routing line-level (±10V) audio between preamp, EQ, and output stages. Use Value: Delivers <–60dB off-isolation at 1MHz and <–66dB crosstalk - preserving channel separation and dynamic range in multi-channel systems. |
| PBX/PABX Systems | Avionics Signal Conditioning |
|
Use Scenario: Call routing and tone generation circuitry in private branch exchange (PBX) and enterprise telephony platforms. IC Role / Device Role / Timing Role: Dual-path analog switch managing voice-band (300Hz–3.4kHz) signal paths and DTMF tone injection. Use Value: Guarantees flat RON (<0.5Ω variation) across audio band - preventing frequency-dependent insertion loss and harmonic distortion. |
Use Scenario: Sensor signal multiplexing and redundancy switching in flight control and navigation subsystems. IC Role / Device Role / Timing Role: High-reliability analog switch selecting between primary/backup transducers (e.g., air data computers, inertial sensors). Use Value: Operates over –40°C to +85°C (E-grade variants) with <120nA COM on-leakage - ensuring signal fidelity in wide-temperature avionics environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4609CSE | Same electrical specs, but in 16-pin narrow SO package (surface-mount); thermal resistance higher than DIP. | Better suited for space-constrained PCBs; requires reflow soldering and different layout rules. | Select MAX4609CSE for automated SMT production; retain MAX4609CPE for through-hole prototyping or legacy DIP-based designs. |
| ADG1419BRUZ | 2.8Ω RON, ±15V supply, 1.5nA off-leakage at +85°C, but only available in TSSOP-16; no NC/NO asymmetry (dual NO). | Lacks mixed NC/NO configuration - requires redesign if normally closed functionality is mandatory. | Choose ADG1419BRUZ only when dual NO topology suffices and surface-mount footprint is acceptable. |
Compared with MAX4609CSE and ADG1419BRUZ, the MAX4609CPE uniquely combines through-hole DIP packaging, guaranteed 0.5Ω RON match, and integrated NC/NO channel asymmetry - making it optimal for relay-replacement upgrades and mixed-signal test fixtures requiring mechanical compatibility and functional fidelity.
Availability
MAX4609CPE is available at Aetrix Electronics and suitable for automated test equipment, audio routing infrastructure, and avionics signal conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX4609CPE 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 MAX4607/MAX4608/MAX4609 family was designed specifically for low-distortion, high-reliability analog signal routing in test and measurement systems - emphasizing matched on-resistance, rail-to-rail operation, and TTL/CMOS logic compatibility.
FAQ
What is the maximum supply voltage rating for MAX4609CPE?
The MAX4609CPE 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 the specified ranges: ±4.5V to ±20V (dual supply) or +4.5V to +36V (single supply). Exceeding these limits risks permanent damage due to internal diode clamp activation or junction breakdown.
Does MAX4609CPE support rail-to-rail analog signal switching?
Yes, the MAX4609CPE supports rail-to-rail analog signal switching - meaning signals from V– to V+ can pass through the switch without clipping. This capability is confirmed across its full operating temperature range and supply configurations, enabling use with ±10V industrial sensors and +12V audio line drivers without external level shifting.
How does the NC/NO configuration of MAX4609CPE differ from MAX4607CPE and MAX4608CPE?
The MAX4609CPE integrates one normally closed (NC1/COM1) and one normally open (NO2/COM2) SPST switch. In contrast, MAX4607CPE contains two NC switches, and MAX4608CPE contains two NO switches. This asymmetric configuration allows fail-safe or default-path behavior in one channel while enabling active-enable routing in the other - critical for safety-critical multiplexing and redundant signal selection.
What is the guaranteed on-resistance match specification for MAX4609CPE?
The MAX4609CPE guarantees an on-resistance match (∆RON) of ≤0.5Ω maximum between its two channels over the full operating temperature range (0°C to +70°C for C-grade). This is measured at ICOM = 10mA with VNO/VNC = –5V, 0V, or +5V and ensures predictable gain/phase tracking in dual-path applications like stereo audio or differential sensor readout.
Can MAX4609CPE operate with a single +5V supply?
No, the MAX4609CPE cannot operate reliably with only a +5V analog supply. Its minimum single-supply voltage is +4.5V, but proper analog signal swing requires sufficient headroom - e.g., ±10V signals need ≥±12V supplies. With +5V V+, the usable analog range shrinks significantly (V– must be 0V, limiting signal to 0V–5V), and RON increases beyond 2.5Ω. Use +12V or higher for full-spec performance.
MAX4609CPE 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:
- 2
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 110ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 45pC
- Channel Capacitance (CS(off), CD(off)):
- 64pF, 64pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -66dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4609CPE FAQ
1.How can I place an order for MAX4609CPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4609CPE 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 MAX4609CPE reliable?
The price and inventory of MAX4609CPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4609CPE is usually 5 days.
3.What payment methods are accepted for MAX4609CPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4609CPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4609CPE?
MAX4609CPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4609CPE 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 MAX4609CPE?
For technical support, including MAX4609CPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4609CPE requirements.
6.How does Aetrix verify that MAX4609CPE is sourced from the original manufacturer or authorized distributors?
All MAX4609CPE 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 MAX4609CPE meets industry standards.
7.What is the process for return or replacement of MAX4609CPE?
All MAX4609CPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4609CPE, 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 MAX4609CPE part is unused and in its original packaging.
Return procedure for MAX4609CPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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