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Analog Devices Inc./Maxim Integrated MAX4597EXK
- Part No.:
- MAX4597EXK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4597EXK.pdf
- Description:
- IC SW SPSTX1 10OHM SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:9,167
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Product details
Overview
MAX4597EXK from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST) CMOS analog switch operating from a single +2.0V to +5.5V supply, featuring 10Ω max on-resistance, 1.5Ω max on-resistance flatness at +5V, and <40ns switching times. It is used in audio/video signal routing and battery-operated equipment where low leakage and high off-isolation are critical.
For engineers reviewing the MAX4597EXK datasheet, MAX4597EXK pinout, MAX4597EXK application, or MAX4597EXK equivalent, this page delivers verified electrical specs, SC70-5 package details, truth-table-defined NC behavior, and real-world design context for low-voltage analog switching in space-constrained portable systems.
Technical Context
The MAX4597EXK implements a bidirectional SPST analog switch with NC default state: logic LOW at IN connects COM to NC; logic HIGH disconnects the path. Its CMOS architecture enables rail-to-rail analog signal handling (0V to V+) with minimal RON variation across voltage and temperature.
It achieves -80dB off-isolation at 1MHz and 300MHz -3dB bandwidth at +25°C, supported by guaranteed ≤5pC charge injection and 0.05% THD at 20Hz–20kHz. The device draws ≤1µA supply current over -40°C to +85°C and tolerates ±20mA continuous terminal current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω max at +5V - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| On-Resistance Flatness | 1.5Ω max over full analog range - maintains consistent gain and linearity across input voltage swing. |
| Off-Isolation | -80dB at 1MHz - suppresses crosstalk between inactive channels in multi-signal routing applications. |
| Switching Time (tOFF) | 40ns max - enables fast channel selection in time-critical audio multiplexing and communications circuits. |
| Charge Injection | 5pC max - limits glitch-induced error in sample-and-hold or ADC front-end switching stages. |
| Analog Bandwidth | 300MHz -3dB at +25°C - supports high-fidelity video and broadband RF signal routing without roll-off. |
| Supply Range | +2.0V to +5.5V single supply - simplifies power design in 2.5V/3.3V/5V portable systems without dual-rail support. |
Pinout & Package
MAX4597EXK is housed in a 5-pin SC70-5 package (1.6mm × 1.6mm × 0.9mm), optimized for high off-isolation and board-space efficiency in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - NC | Normally Closed analog terminal | Internally connected to COM when IN = LOW; interchangeable with NO/COM per bidirectional operation. |
| 2 - IN | Digital control input | TTL/CMOS-compatible logic input; LOW enables NC-COM path, HIGH opens the switch. |
| 3 - GND | Ground reference | Return path for supply and logic; must be low-impedance to minimize noise coupling into analog paths. |
| 4 - COM | Common analog terminal | Bidirectional node linking NC (when active) or NO (if reconfigured); serves as central signal hub. |
| 5 - V+ | Positive supply voltage | Single supply rail powering internal CMOS switch core; must be applied before analog/logic signals per sequencing guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) default state | Ensures fail-safe signal continuity during power-up or logic fault conditions in safety-critical routing. |
| Ultra-low 0.5nA max off-leakage | Preserves signal integrity in high-impedance sensor interfaces and battery-monitoring circuits over temperature. |
| Guaranteed 5pC max charge injection | Reduces settling error in precision data acquisition systems using switched-capacitor architectures. |
| 300MHz -3dB bandwidth | Supports composite video, USB 1.1, and ISDN signal routing without high-frequency attenuation. |
| SC70-5 footprint compatibility | Enables direct replacement of legacy analog switches in space-constrained PCB layouts without redesign. |
Applications
| Audio Signal Routing | Cellular Phone Front-End |
|---|---|
|
Use Scenario: Switching microphone inputs between main and secondary voice paths in dual-SIM handsets. IC Role / Device Role / Timing Role: NC-configured analog switch providing default audio path continuity until logic-controlled reconfiguration. Use Value: Eliminates need for external pull-up circuitry while maintaining <40ns channel switching for seamless call handover. |
Use Scenario: Isolating RF transceiver I/Q lines from baseband processor during sleep mode. IC Role / Device Role / Timing Role: Low-leakage SPST switch acting as signal gate controlled by PMU wake/sleep signals. Use Value: Achieves -80dB off-isolation to prevent LO leakage and preserve receiver sensitivity in standby state. |
| Battery-Operated Instrumentation | PCMCIA Card Signal Multiplexing |
|
Use Scenario: Selecting between multiple sensor outputs (thermocouple, RTD, strain gauge) feeding a shared ADC. IC Role / Device Role / Timing Role: Precision analog switch with 1.5Ω RON flatness minimizing gain error across full input range. Use Value: Enables 16-bit measurement accuracy without calibration compensation for channel-dependent resistance variation. |
Use Scenario: Routing ATA/IDE bus signals between host controller and removable storage card in legacy laptop slots. IC Role / Device Role / Timing Role: High-bandwidth (300MHz) switch supporting 16.6MB/s PIO Mode 4 transfer rates. Use Value: Maintains signal integrity up to 33MHz clock edge rates with <5pC charge injection preventing data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4595EXK | Same SC70-5 package, identical NC configuration and RON/leakage specs, but different top-mark (AAI vs AAK). | No functional difference; both rated for -40°C to +85°C and share identical timing/bandwidth performance. | Select MAX4595EXK only if AAK top-mark sourcing constraints apply; electrically interchangeable. |
| TMUX1574DSGR | 10Ω RON, but NC default not supported - offers configurable NO/NC via enable polarity; 3.6V max supply. | Requires logic inversion or external inverter for NC-equivalent behavior; unsuitable for >3.6V systems. | Choose TMUX1574DSGR only when flexible enable polarity is needed and supply stays ≤3.6V. |
Compared with MAX4595EXK, MAX4597EXK offers identical performance and pinout but distinct traceability marking; versus TMUX1574DSGR, MAX4597EXK provides true hardware-enforced NC behavior and wider 2.0–5.5V operation without external components.
Availability
MAX4597EXK is available at Aetrix Electronics and suitable for cellular phones, battery-operated instrumentation, and audio/video signal routing requiring stable component supply across industrial temperature ranges.
Supply support for MAX4597EXK 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 demanding industrial, communications, and consumer applications.
The MAX4594–MAX4597 family targets low-voltage, space-constrained analog signal routing-specifically engineered for NC/NO SPST switching with ultra-low leakage, high bandwidth, and SC70/µDFN packaging.
FAQ
What is the default switch state of the MAX4597EXK?
The MAX4597EXK is a normally closed (NC) analog switch: when the IN pin is logic LOW, the NC and COM terminals are connected; applying logic HIGH to IN opens the path. This NC behavior is hardwired in silicon and does not require external biasing. The MAX4597EXK truth table confirms that IN = LOW yields ON state, making it ideal for fail-safe signal paths in power-sensitive systems.
Does the MAX4597EXK support rail-to-rail analog signals?
Yes, the MAX4597EXK supports analog signals from GND to V+ across its full specified supply range (+2.0V to +5.5V). Its CMOS process ensures minimal RON variation over this range-verified by on-resistance vs. COM voltage curves showing ≤10Ω deviation at +5V and ≤20Ω at +2.7V. This rail-to-rail capability allows direct interfacing with sensors, DACs, and ADCs without level-shifting circuitry.
What is the maximum allowable supply voltage for the MAX4597EXK?
The absolute maximum supply voltage for the MAX4597EXK is +6V, but the recommended operating range is +2.0V to +5.5V. Exceeding +5.5V risks violating the Absolute Maximum Ratings, potentially degrading long-term reliability. Electrical characteristics-including RON, leakage, and switching speed-are fully specified only within the +2.0V to +5.5V range, and operation above +5.5V voids parametric guarantees.
Can the MAX4597EXK be used in bidirectional signal paths?
Yes, the MAX4597EXK is fully bidirectional: signals pass with equal performance from NC to COM or COM to NC, with identical RON, bandwidth, and leakage in either direction. The datasheet explicitly states "NO, NC, and COM pins are identical and interchangeable" and confirms bidirectional operation in Applications Information. This makes MAX4597EXK suitable for I²C bus isolation, audio loopback, and other symmetric analog paths.
How does the MAX4597EXK handle power-supply sequencing?
The MAX4597EXK requires V+ to be applied before analog signals or logic inputs to prevent latch-up or ESD damage. If sequencing cannot be guaranteed, external protection diodes (D1/D2 per Figure 1) must be added-though this reduces analog range by ~0.7V. The MAX4597EXK itself contains internal clamping diodes, but forward current must be limited to ±20mA continuous. Proper sequencing preserves the 0.5nA leakage and 10Ω RON specifications.
MAX4597EXK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - Closed
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 2V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 35ns, 40ns
- -3db Bandwidth:
- 300MHz
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4597EXK FAQ
1.How can I place an order for MAX4597EXK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4597EXK 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 MAX4597EXK reliable?
The price and inventory of MAX4597EXK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4597EXK is usually 5 days.
3.What payment methods are accepted for MAX4597EXK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4597EXK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4597EXK?
MAX4597EXK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4597EXK 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 MAX4597EXK?
For technical support, including MAX4597EXK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4597EXK requirements.
6.How does Aetrix verify that MAX4597EXK is sourced from the original manufacturer or authorized distributors?
All MAX4597EXK 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 MAX4597EXK meets industry standards.
7.What is the process for return or replacement of MAX4597EXK?
All MAX4597EXK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4597EXK, 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 MAX4597EXK part is unused and in its original packaging.
Return procedure for MAX4597EXK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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