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Analog Devices Inc./Maxim Integrated MAX4597ELT-T
- Part No.:
- MAX4597ELT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WFDFN
- Datasheet:
-
MAX4597ELT-T.pdf
- Description:
- IC SW SPSTX1 10OHM 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX4597ELT-T from Maxim Integrated is a normally closed (NC) single-pole/single-throw (SPST) CMOS analog switch optimized for ultra-low-voltage operation from +2.0V to +5.5V, delivering ≤10Ω on-resistance, ≤1.5Ω on-resistance flatness over the full analog signal range, and <40ns switching times - enabling precision audio/video routing in space-constrained portable devices.
For engineers reviewing the MAX4597ELT-T datasheet, MAX4597ELT-T pinout, MAX4597ELT-T application, or MAX4597ELT-T equivalent, key selection criteria include NC default state, 6-pin µDFN package footprint, guaranteed ≤5pC charge injection, -80dB off-isolation at 1MHz, and bidirectional signal handling across 0V to V+.
Technical Context
The MAX4597ELT-T implements a fully bidirectional SPST analog switch with NC logic behavior: IN = LOW enables conduction between COM and NC; IN = HIGH disconnects the path. Its CMOS architecture ensures symmetrical analog performance regardless of signal direction.
Designed for single-supply battery-powered systems, it operates down to +2.0V while maintaining TTL/CMOS-compatible logic thresholds (VIH ≥ 2.0V at +3V supply; VIH ≥ 2.4V at +5V), supports 300MHz -3dB bandwidth at +25°C, and guarantees ≤0.5nA off-leakage current over -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | ≤10Ω max at +5V supply - ensures minimal voltage drop and signal attenuation in low-level analog paths. |
| On-Resistance Flatness | ≤1.5Ω max over full analog range - preserves linearity and THD performance (<0.05%) in audio applications. |
| Switching Time (tON/tOFF) | ≤35ns / ≤40ns max - supports high-speed multiplexing in communications and DSL modem signal routing. |
| Off-Isolation | -80dB at 1MHz - suppresses crosstalk between inactive channels in multi-signal routing systems. |
| Charge Injection | ≤5pC max - minimizes glitch-induced DC offset in precision sampling and sensor front-end circuits. |
| Analog Signal Range | 0V to V+ - enables rail-to-rail signal handling without external level-shifting in single-supply designs. |
| Supply Voltage Range | +2.0V to +5.5V - compatible with Li-ion, Li-poly, and regulated 3.3V/5V rails in portable electronics. |
Pinout & Package
MAX4597ELT-T is packaged in a 6-pin µDFN (1.5mm × 1.0mm × 0.8mm) with exposed pad (EP) for thermal and electrical grounding. Pin 1 is marked by index area; EP must be soldered to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | Analog Switch, Normally Closed | Connects to COM when IN = LOW; open-circuit when IN = HIGH - defines NC default state. |
| 2 (IN) | Digital Control Input | TTL/CMOS-compatible logic input controlling switch state; drives internal gate bias network. |
| 3 (GND) | Ground Reference | Primary return path for analog and digital currents; connects to EP for optimal noise immunity. |
| 4 (COM) | Analog Switch, Common | Bidirectional analog node - serves as input or output depending on signal flow direction. |
| 5 (V+) | Positive Supply Voltage | Single power rail for analog and logic sections; must be applied before analog signals per sequencing guidelines. |
| 6 (EP) | Exposed Pad | Thermal and electrical ground connection - required for rated power dissipation (168mW at +70°C). |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Default State | Ensures fail-safe signal continuity during power-up or control loss - critical in safety-aware audio mute paths. |
| Ultra-Low Charge Injection (≤5pC) | Reduces settling error in sample-and-hold and ADC front-end circuits, avoiding post-switching correction. |
| 300MHz -3dB Bandwidth | Supports high-fidelity video and broadband communication signals without amplitude roll-off. |
| 0.05% THD+N | Preserves audio fidelity in headset, speaker, and microphone routing applications across 20Hz–20kHz. |
| Bidirectional Analog Path | Eliminates need for signal-direction awareness in PCB layout - simplifies routing in compact layouts. |
Applications
| Cellular Phone Audio Routing | DSL Modem Line Interface |
|---|---|
|
Use Scenario: Switching between earpiece, loudspeaker, and headset outputs in dual-SIM smartphones with shared audio DAC. IC Role / Device Role / Timing Role: NC-configured analog switch isolating unused paths while maintaining default connection to primary output. Use Value: Prevents pop/click during mode transitions via low charge injection and rail-to-rail signal handling. |
Use Scenario: Selecting between POTS line and ADSL transceiver in integrated residential gateway modems. IC Role / Device Role / Timing Role: High-bandwidth SPST switch enabling clean separation of voice and data signal paths. Use Value: -80dB off-isolation blocks DSL noise from entering voice circuitry, meeting ITU-T G.992.1 requirements. |
| Battery-Powered Medical Sensor Hub | PCMCIA Card Signal Multiplexing |
|
Use Scenario: Routing ECG, SpO₂, and temperature sensor outputs to a shared ADC in portable patient monitors. IC Role / Device Role / Timing Role: Low-leakage (≤0.5nA), low-RON analog switch preserving microvolt-level biopotential integrity. Use Value: Minimizes measurement offset drift and preserves SNR in low-power, long-battery-life designs. |
Use Scenario: Managing analog audio/video I/O lines between PCMCIA host controller and peripheral cards. IC Role / Device Role / Timing Role: Compact µDFN switch enabling hot-plug-compatible signal reconfiguration without layout penalty. Use Value: 6-pin footprint saves board space vs. SOIC alternatives while supporting 300MHz bandwidth for VGA signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4595ELT-T | Same NC function, identical 6-pin µDFN package and pinout, but rated for SC70-5 variant in EXK-T version - ELT-T variant matches MAX4597ELT-T footprint. | Identical use cases; differs only in top-mark (AC vs AE) and minor process binning - fully interchangeable in µDFN layout. | Select MAX4595ELT-T only if sourcing constraints require alternate marking; electrical and mechanical specs are identical. |
| TMUX1574YFPR | NC SPST switch in 6-pin DSBGA (1.0mm × 1.5mm); RON = 8.5Ω max, tON = 25ns, but requires separate VCC and logic supply (1.8V/3.3V). | Not single-supply compatible - unsuitable for +2.0V–+5.5V battery rails without level-shifting; higher leakage (1nA). | Choose only if DSBGA footprint is mandated and dual-supply infrastructure exists; not a direct replacement for MAX4597ELT-T. |
Compared with MAX4595ELT-T, MAX4597ELT-T offers identical functionality and µDFN compatibility, whereas TMUX1574YFPR introduces supply complexity and lacks guaranteed 2V operation - making MAX4597ELT-T the optimal choice for single-supply, low-voltage, NC-critical designs.
Availability
MAX4597ELT-T is available at Aetrix Electronics and suitable for cellular phones, battery-operated medical sensors, and DSL modems requiring stable component supply, long-term lifecycle support, and consistent µDFN-6 sourcing.
Supply support for MAX4597ELT-T 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 delivers low-voltage, low-RON SPST analog switches targeting portable equipment where size, power, and signal fidelity are critical - specifically engineered for NC/NO flexibility in µDFN and SC70 packages.
FAQ
What is the default switch state of the MAX4597ELT-T?
The MAX4597ELT-T is a normally closed (NC) analog switch: when the IN pin is logic LOW (≤0.8V), COM connects to NC; when IN is HIGH (≥2.4V at +5V supply), the path opens. This NC behavior is intrinsic to the MAX4597ELT-T silicon design and confirmed in its truth table and functional diagrams.
Does the MAX4597ELT-T support rail-to-rail analog signals?
Yes, the MAX4597ELT-T supports analog signals from 0V to V+ across its full operating supply range (+2.0V to +5.5V). This rail-to-rail capability is explicitly specified in the "Analog Signal Range" parameter and verified in typical operating characteristics plots showing RON stability from 0V to V+.
What is the maximum allowable supply voltage for the MAX4597ELT-T?
The absolute maximum supply voltage for the MAX4597ELT-T is +6V, but the recommended operating range is +2.0V to +5.5V. Exceeding +6V risks permanent damage, as stated in the Absolute Maximum Ratings table - operation above +5.5V voids parametric guarantees including RON and leakage.
How does the exposed pad (EP) on the MAX4597ELT-T package function?
The exposed pad (EP) on the MAX4597ELT-T's 6-pin µDFN package must be soldered to GND to ensure proper thermal dissipation (derating: 2.1mW/°C above +70°C) and electrical noise suppression. It is not optional - omitting EP grounding reduces max power dissipation to 168mW and degrades PSRR and THD performance.
Is the MAX4597ELT-T pin-compatible with the MAX4594ELT-T?
No - the MAX4597ELT-T (NC) and MAX4594ELT-T (NO) share the same 6-pin µDFN package and pinout, but their functional behavior is complementary: MAX4594ELT-T closes on logic HIGH, while MAX4597ELT-T closes on logic LOW. They are mechanically compatible but not functionally interchangeable without logic inversion.
MAX4597ELT-T 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:
- 6-µDFN (1.5x1)
MAX4597ELT-T FAQ
1.How can I place an order for MAX4597ELT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4597ELT-T 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 MAX4597ELT-T reliable?
The price and inventory of MAX4597ELT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4597ELT-T is usually 5 days.
3.What payment methods are accepted for MAX4597ELT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4597ELT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4597ELT-T?
MAX4597ELT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4597ELT-T 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 MAX4597ELT-T?
For technical support, including MAX4597ELT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4597ELT-T requirements.
6.How does Aetrix verify that MAX4597ELT-T is sourced from the original manufacturer or authorized distributors?
All MAX4597ELT-T 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 MAX4597ELT-T meets industry standards.
7.What is the process for return or replacement of MAX4597ELT-T?
All MAX4597ELT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4597ELT-T, 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 MAX4597ELT-T part is unused and in its original packaging.
Return procedure for MAX4597ELT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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