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Analog Devices Inc./Maxim Integrated MAX4659ESA+
- Part No.:
- MAX4659ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4659ESA+.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:419
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Product details
Overview
MAX4659ESA+ from Maxim Integrated is a single-pole/double-throw (SPDT) CMOS analog switch optimized for high-current signal routing in ±4.5V to ±20V dual-supply or +9V to +40V single-supply systems. It delivers 25Ω max on-resistance at ±15V, supports 75mA continuous and 150mA peak current, and features rail-to-rail analog signal handling with 1nA max off-leakage at +25°C - enabling robust relay replacement in test equipment and audio routing.
For engineers reviewing the MAX4659ESA+ datasheet, MAX4659ESA+ pinout, MAX4659ESA+ application, or MAX4659ESA+ equivalent, key selection criteria include verified SPDT topology, confirmed 8-pin SO package mapping, guaranteed 75mA continuous switching capability, and documented compatibility with DG419 and MAX319 footprints in industrial signal-path designs.
Technical Context
The MAX4659ESA+ implements a parallel N-channel/P-channel MOSFET switch architecture with body-node sensing to eliminate conventional 600mV voltage-drop limitations, enabling full rail-to-rail conduction without increased leakage or supply current penalty. Its TTL/CMOS-compatible IN pin controls complementary NC (normally closed) and NO (normally open) paths between COM and either terminal.
Dual-supply operation supports asymmetric configurations (e.g., V+ = +12V, V− = −5V) within a 40V total range, while dynamic performance includes 150ns typical transition time (RL = 300Ω, CL = 35pF) and 5ns break-before-make delay - critical for glitch-free signal handover in communication and audio systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at ±15V supplies - ensures minimal signal attenuation and power loss in precision analog paths. |
| Continuous Current Rating | ±75mA per channel (COM/NO/NC) - supports sustained switching of moderate-power loads like audio amplifiers or sensor interfaces. |
| Peak Current Capability | ±150mA pulsed (1ms, 10% duty cycle) - handles transient surges without latch-up or thermal shutdown. |
| Off-Leakage Current | 1nA max at TA = +25°C - preserves signal integrity in high-impedance circuits such as sensor front-ends or precision measurement nodes. |
| Analog Signal Range | Rail-to-rail: V− to V+ - enables full utilization of supply headroom for bipolar or unipolar signals without clipping. |
| Supply Voltage Range | ±4.5V to ±20V (dual); +9V to +40V (single) - provides design flexibility across industrial, telecom, and test equipment power architectures. |
| Transition Time | 150ns typical (RL = 300Ω, CL = 35pF) - meets timing requirements for medium-speed data acquisition and multiplexing. |
Pinout & Package
MAX4659ESA+ is housed in an 8-pin SO (Small Outline) package (S8-2), with exposed paddle not connected by default and compatible with standard SOIC PCB footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog Switch Common | Central signal path shared between NC and NO; carries full switched current and must be routed with low-inductance traces. |
| 2 - NC | Normally Closed Terminal | Connected to COM when IN = low; used for default-path routing or fail-safe signal continuity. |
| 3 - GND | Ground Reference | System ground return for digital logic and internal bias networks; requires low-impedance connection to minimize noise coupling. |
| 4 - V+ | Positive Supply Input | Provides power for P-channel MOSFETs and level-shifting circuitry; must be decoupled near the pin with ≥0.1µF ceramic capacitor. |
| 5 - N.C. | No Connection | Internally unconnected; must remain floating - no external tie or trace routing permitted. |
| 6 - IN | Digital Control Input | TTL/CMOS-compatible logic input (VIH = 2.4V, VIL = 0.8V); drives complementary NC/NO switching states with minimal drive strength required. |
| 7 - V− | Negative Supply Input | Provides power for N-channel MOSFETs and bias generation; critical for rail-to-rail operation in dual-supply mode. |
| 8 - NO | Normally Open Terminal | Connected to COM when IN = high; selected for active-path routing or signal gating applications. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs spanning full V− to V+ range without distortion or clipping - essential for ±15V op-amp interfaces and audio line-level routing. |
| 25Ω max on-resistance flatness | 1.5Ω max variation over full signal range at ±15V - maintains consistent gain and impedance matching across signal amplitude. |
| No VL supply requirement | Eliminates need for separate logic-level supply - simplifies BOM and layout by using only main analog rails for both power and control. |
| 1.5Ω max RON matching | Ensures identical on-resistance between NC and NO paths - critical for balanced differential switching and THD-sensitive audio applications. |
| 75mA continuous current rating | Enables direct replacement of electromechanical relays in 24V industrial I/O modules without external current boosting. |
Applications
| Relay Replacement | Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test fixtures requiring >1M cycle life and sub-millisecond switching. IC Role / Device Role / Timing Role: SPDT analog switch providing fast, solid-state path selection between DUT and measurement instruments. Use Value: Eliminates relay wear-out and bounce, enabling 10⁶× faster switching cycles and zero maintenance in production ATE systems. |
Use Scenario: Multiplexing multiple sensor outputs or calibration references into a single ADC channel in benchtop analyzers. IC Role / Device Role / Timing Role: High-fidelity signal gate maintaining low THD (0.005%) and 225MHz bandwidth during channel scanning. Use Value: Preserves signal integrity across DC–20kHz audio and low-MHz sensor bands without added noise or crosstalk degradation. |
| Audio Signal Routing | xDSL Modem Line Interface |
|
Use Scenario: Selecting between microphone inputs, line-level sources, or headphone outputs in PC multimedia boards and studio mixers. IC Role / Device Role / Timing Role: Low-RON, low-leakage SPDT switch routing ±5V audio signals with <1pC charge injection to prevent pop/click artifacts. Use Value: Delivers audibly transparent switching with <−76dB crosstalk and <−70dB off-isolation at 1MHz for clean multi-source mixing. |
Use Scenario: Isolating DSL line drivers from diagnostic test points or protecting transceivers during line fault conditions. IC Role / Device Role / Timing Role: High-voltage SPDT switch operating up to ±20V to handle ADSL/VDSL common-mode voltages and surge transients. Use Value: Provides 40V V+–V− tolerance and 1nA off-leakage to maintain line impedance stability and avoid false fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG419DN-E3 | Higher 45Ω max RON at ±15V; 30mA continuous current rating; no exposed paddle option. | Limited to lower-current signal routing; unsuitable for 75mA continuous load scenarios. | Select DG419DN-E3 only when cost sensitivity outweighs current capacity and on-resistance requirements. |
| MAX319ESA+ | Same 8-pin SO package and pinout; 35Ω max RON; 60mA continuous current; 100MHz bandwidth. | Lower bandwidth and higher RON reduce suitability for high-fidelity audio or fast-switching test equipment. | Choose MAX319ESA+ for legacy designs where footprint compatibility is mandatory but performance margins allow relaxation. |
Compared with DG419DN-E3 and MAX319ESA+, the MAX4659ESA+ provides superior current handling (75mA vs. ≤60mA), lower on-resistance (25Ω vs. ≥35Ω), and higher bandwidth (225MHz vs. ≤100MHz), making it the preferred choice for demanding relay-replacement and high-fidelity signal-routing applications.
Availability
MAX4659ESA+ is available at Aetrix Electronics and suitable for relay replacement, test equipment signal routing, and audio system design requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4659ESA+ 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 consumer applications.
The MAX4659ESA+ belongs to Maxim's high-current analog switch product line, engineered specifically for solid-state replacement of electromechanical relays in test, telecom, and audio systems demanding low RON, rail-to-rail operation, and robust current handling.
FAQ
What is the maximum continuous current rating for MAX4659ESA+?
The MAX4659ESA+ supports ±75mA continuous current through its COM, NO, and NC terminals under specified thermal conditions. This rating applies across the full operating temperature range (−40°C to +85°C) and is validated per the device's absolute maximum ratings and electrical characteristics tables. Exceeding this limit risks thermal overload and reduced reliability. The MAX4659ESA+ datasheet confirms this value under "Continuous Current COM, NO, NC (MAX4659)" in the Absolute Maximum Ratings section.
Does MAX4659ESA+ require a separate logic supply (VL)?
No, the MAX4659ESA+ does not require a separate VL supply. Its digital control input (IN) is fully TTL/CMOS-compatible and operates directly from the same V+ and V− rails used for analog switching. This eliminates the need for an additional logic-level supply rail, simplifying power architecture and reducing BOM count. The feature is explicitly stated in the "Features" section of the MAX4659ESA+ datasheet as "VL Supply Not Required."
What is the on-resistance flatness specification for MAX4659ESA+ at ±15V supplies?
The MAX4659ESA+ exhibits 1.5Ω max on-resistance flatness (RFLAT(ON)) when operated with ±15V supplies. This parameter quantifies the variation in on-resistance across the full analog signal range (V− to V+) and ensures consistent signal attenuation regardless of input voltage level. It is measured at TA = +25°C with ICOM = 50mA and is guaranteed over temperature per the Electrical Characteristics table in the MAX4659ESA+ datasheet.
Can MAX4659ESA+ operate with asymmetric dual supplies?
Yes, the MAX4659ESA+ supports asymmetric dual-supply operation as long as the total voltage difference between V+ and V− remains within the 40V absolute maximum rating (e.g., V+ = +12V, V− = −5V yields 17V differential). This flexibility allows optimization for specific signal swing requirements without violating device limits. The MAX4659ESA+ datasheet explicitly states: "These switches can operate from any combination of supplies, within a 40V V+ to V− range."
Is the exposed paddle on MAX4659ESA+ internally connected?
No, the exposed paddle on the MAX4659ESA+ (8-pin SO package) is not internally connected to any die node. Per the MAX4659ESA+ datasheet Pin Description, the EP pad may be connected to V+ for improved thermal performance or left unconnected - it has no electrical function if floating. This differs from thermally enhanced variants like MAX4660ESA+, where paddle connection is recommended but still optional.
MAX4659ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4659ESA+ FAQ
1.How can I place an order for MAX4659ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4659ESA+ 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 MAX4659ESA+ reliable?
The price and inventory of MAX4659ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4659ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4659ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4659ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4659ESA+?
MAX4659ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4659ESA+ 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 MAX4659ESA+?
For technical support, including MAX4659ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4659ESA+ requirements.
6.How does Aetrix verify that MAX4659ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4659ESA+ 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 MAX4659ESA+ meets industry standards.
7.What is the process for return or replacement of MAX4659ESA+?
All MAX4659ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4659ESA+, 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 MAX4659ESA+ part is unused and in its original packaging.
Return procedure for MAX4659ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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