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Analog Devices Inc./Maxim Integrated MAX4594EXK-T
- Part No.:
- MAX4594EXK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4594EXK-T.pdf
- Description:
- IC SWITCH SPST-NOX1 10OHM SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,473
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Product details
Overview
MAX4594EXK-T from Maxim Integrated is a normally open (NO), single-pole/single-throw (SPST) CMOS analog switch operating from a single +2.0V to +5.5V supply. It delivers 10Ω max on-resistance, 1.5Ω max on-resistance flatness, and <40ns switching times, enabling precision signal routing in low-voltage portable audio and communications circuits.
For engineers reviewing the MAX4594EXK-T datasheet, MAX4594EXK-T pinout, MAX4594EXK-T application, or MAX4594EXK-T equivalent, key selection criteria include guaranteed 5pC max charge injection, -80dB off-isolation at 1MHz, 300MHz -3dB bandwidth, TTL/CMOS logic compatibility, and ultra-small SC70-5 package suitability for space-constrained PCB layouts.
Technical Context
The MAX4594EXK-T implements a bidirectional SPST analog switch architecture with fully rail-to-rail analog signal handling (0V to V+). Its CMOS transmission-gate design ensures symmetrical conduction and minimal THD (0.05%) across audio and video frequency bands.
Control logic is TTL/CMOS-compatible with VIH = 2.4V (at V+ = 5V) and VIL = 0.8V, and it guarantees sub-40ns tOFF and 35ns tON under 300Ω/35pF load conditions. Internal protection diodes enable robust operation during supply sequencing violations or analog overvoltage events up to ±0.3V beyond V+ or GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω max at V+ = 4.5V–5.5V; ensures minimal voltage drop and signal attenuation in precision analog paths. |
| RON Flatness | 1.5Ω max over full analog signal range; maintains consistent gain and linearity in variable-amplitude signals. |
| Switching Time (tON/tOFF) | 35ns/40ns max at V+ = 5V, RL = 300Ω, CL = 35pF; supports high-speed multiplexing in data acquisition and comms interfaces. |
| Off-Isolation | -80dB at 1MHz; suppresses crosstalk between inactive channels in multi-signal routing applications. |
| Charge Injection | 5pC max; limits glitch-induced DC offset in sample-and-hold and switched-capacitor circuits. |
| Analog Bandwidth | 300MHz -3dB at +25°C; preserves integrity of fast video and RF-adjacent baseband signals. |
| Supply Range | +2.0V to +5.5V single supply; enables direct integration with Li-ion battery-powered systems and 3.3V/5V logic domains. |
Pinout & Package
Packaged in a 5-pin SC70-5 (SOT-353) surface-mount package with exposed pad not present (µDFN variant has EP; SC70 does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Bidirectional signal path node; connects to load or source depending on routing configuration. |
| 2 - NO | Normally open analog terminal | Open-circuit when IN = LOW; closes to COM only when IN = HIGH - defines SPST NO behavior. |
| 3 - GND | Ground reference | Return path for logic and analog currents; must be low-impedance to minimize noise coupling. |
| 4 - IN | Digital control input | TTL/CMOS-compatible logic interface; drives internal gate bias to turn switch ON/OFF. |
| 5 - V+ | Positive supply | Single power rail for analog and digital sections; powers internal level-shifting circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON flatness | 1.5Ω max variation over full 0V–V+ analog range ensures stable gain in audio DAC output stages. |
| Guaranteed 5pC charge injection | Enables accurate sampling in 12-bit+ data converters without requiring external reset compensation. |
| 300MHz -3dB bandwidth | Supports composite video (NTSC/PAL), USB 1.1 D+/D− switching, and broadband IF signal routing. |
| SC70-5 footprint | 1.25mm × 2.0mm body size allows dense placement in smartphone camera modules and wearable sensor hubs. |
| Single +2.0V to +5.5V supply | Eliminates need for dual supplies or level shifters in mixed-voltage systems using 1.8V/3.3V/5V logic. |
Applications
| Cellular Phone Audio Routing | PCMCIA Card Signal Switching |
|---|---|
Use Scenario: Selecting between earpiece, speakerphone, and headset outputs in GSM/WCDMA handsets. IC Role / Device Role / Timing Role: SPST analog switch isolating audio paths under baseband processor GPIO control. Use Value: 10Ω RON and 0.05% THD preserve SNR >95dB; 5pC charge injection prevents pop/click during mute transitions. |
Use Scenario: Multiplexing ATA/IDE bus signals (IORD#, IOWR#, RESET) between host controller and PCMCIA slot. IC Role / Device Role / Timing Role: Bidirectional logic-level pass gate enabling hot-plug detection and bus isolation. Use Value: 35ns tON supports 16.67MHz PCMCIA Mode 0 timing; -80dB off-isolation prevents signal bleed during slot reconfiguration. |
| DSL Modem Line Interface | Portable Media Player Audio Path |
Use Scenario: Isolating POTS splitter inputs during ADSL activation to prevent voice-band interference. IC Role / Device Role / Timing Role: Normally open switch disconnecting analog front-end during DSL handshake phase. Use Value: 0.5nA max off-leakage avoids DC bias shift in op-amp-based hybrid circuits; rail-to-rail operation handles ±2.5V POTS swing. |
Use Scenario: Routing stereo DAC outputs to headphone jack, line-out, or internal speaker amplifier. IC Role / Device Role / Timing Role: Low-distortion analog switch controlled by media SoC GPIO for dynamic output selection. Use Value: 300MHz bandwidth accommodates ultrasonic noise cancellation tones; SC70-5 footprint saves >0.8mm² vs. SOT-23-6 in compact player PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG801BRJZ-REEL7 | 5Ω max RON at 3V, but only 100MHz bandwidth and no guaranteed charge injection spec. | Better for low-RON DC-coupled sensor muxing; unsuitable for >10MHz video/audio due to bandwidth limit. | Choose ADG801BRJZ-REEL7 if RON <6Ω is critical and bandwidth ≤100MHz suffices. |
| TS5A23157DBVR | 6Ω max RON, 200MHz bandwidth, 3pC typical charge injection - but 0.8V min supply and no -40°C to +85°C guarantee. | Valid for 1.8V systems and consumer-grade temperature range; lacks industrial temp rating and max charge injection guarantee. | Choose TS5A23157DBVR for cost-sensitive 1.8V designs where extended temperature operation is not required. |
Compared with ADG801BRJZ-REEL7 and TS5A23157DBVR, the MAX4594EXK-T uniquely combines guaranteed 5pC charge injection, 300MHz bandwidth, and full -40°C to +85°C operation in an SC70-5 package - making it the only option qualified for precision, wideband, industrial-temperature analog routing.
Availability
MAX4594EXK-T is available at Aetrix Electronics and suitable for cellular phone audio routing, DSL modem line interface, and portable media player audio path applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4594EXK-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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer markets.
The MAX4594–MAX4597 family was designed specifically for low-voltage, single-supply analog signal routing in battery-powered portable equipment - prioritizing low RON flatness, minimal charge injection, and ultra-small packaging without sacrificing bandwidth or temperature range.
FAQ
What is the maximum supply voltage rating for the MAX4594EXK-T?
The MAX4594EXK-T has an absolute maximum supply voltage (V+) of +6V, but its specified operational range is +2.0V to +5.5V. Operation above +5.5V voids parametric guarantees and risks permanent damage. The device includes internal clamping diodes that conduct if any pin exceeds V+ + 0.3V or falls below -0.3V relative to GND, limiting forward current to ±20mA continuous.
Is the MAX4594EXK-T pin-compatible with other variants in the MAX4594–MAX4597 family?
No - the MAX4594EXK-T uses a 5-pin SC70-5 package with pinout COM–NO–GND–IN–V+, while MAX4594ELT-T uses a 6-pin µDFN with different pin assignment and an exposed pad. MAX4595/MAX4597 variants are normally closed and share identical SC70-5 pinouts but differ functionally. Direct substitution requires verification of both package footprint and NO/NC logic polarity.
Does the MAX4594EXK-T support bidirectional analog signal flow?
Yes - the MAX4594EXK-T is fully bidirectional: signals pass equally well from COM to NO or NO to COM. This is inherent to its CMOS transmission-gate topology. Pin descriptions explicitly state that NO, NC, and COM pins are interchangeable as input or output, enabling flexible PCB layout and reuse in transmit/receive signal paths without redesign.
What is the guaranteed charge injection specification for the MAX4594EXK-T, and why does it matter?
The MAX4594EXK-T guarantees ≤5pC maximum charge injection, measured per Figure 2 in the datasheet. This parameter directly impacts accuracy in sample-and-hold circuits, switched-capacitor filters, and ADC front-ends - excessive charge injection causes voltage glitches and settling errors. At 5pC into a 10nF hold capacitor, the resulting error is just 0.5mV, supporting 12-bit resolution without calibration.
Can the MAX4594EXK-T operate reliably from a 2.5V supply?
Yes - the MAX4594EXK-T is fully specified down to +2.0V supply. At +2.5V, typical on-resistance rises to ~20Ω (vs. 10Ω at 5V), and switching times increase slightly, but all key parameters - including leakage (<0.5nA), charge injection (≤5pC), and logic compatibility - remain valid across the full -40°C to +85°C range. No derating or external components are needed for 2.5V operation.
MAX4594EXK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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
MAX4594EXK-T FAQ
1.How can I place an order for MAX4594EXK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4594EXK-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 MAX4594EXK-T reliable?
The price and inventory of MAX4594EXK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4594EXK-T is usually 5 days.
3.What payment methods are accepted for MAX4594EXK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4594EXK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4594EXK-T?
MAX4594EXK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4594EXK-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 MAX4594EXK-T?
For technical support, including MAX4594EXK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4594EXK-T requirements.
6.How does Aetrix verify that MAX4594EXK-T is sourced from the original manufacturer or authorized distributors?
All MAX4594EXK-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 MAX4594EXK-T meets industry standards.
7.What is the process for return or replacement of MAX4594EXK-T?
All MAX4594EXK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4594EXK-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 MAX4594EXK-T part is unused and in its original packaging.
Return procedure for MAX4594EXK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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