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Analog Devices Inc./Maxim Integrated MAX4544ESA
- Part No.:
- MAX4544ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4544ESA.pdf
- Description:
- IC SWITCH SPDT X 1 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,996
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Product details
Overview
MAX4544ESA from Maxim Integrated is a single-pole/double-throw (SPDT) analog switch IC designed for precision signal routing in low-voltage, single-supply systems. It operates from +2.7V to +12V, delivers 60Ω max on-resistance, 5pC max charge injection, guaranteed break-before-make switching, and supports ±10mA continuous current - ideal for audio/video switching and battery-powered instrumentation.
For engineers reviewing the MAX4544ESA datasheet, MAX4544ESA pinout, MAX4544ESA application, or MAX4544ESA equivalent, key selection criteria include its SOT23-6 package, SPDT topology with NC/NO/COM terminals, -40°C to +85°C temperature rating, and compatibility with TTL/CMOS logic across supply voltages.
Technical Context
The MAX4544ESA implements a monolithic CMOS SPDT switch architecture with independent digital control inputs enabling bidirectional analog signal routing between COM and either NO or NC paths. Its break-before-make timing (2ns min, 10ns max at +25°C) prevents signal shorting during state transitions.
It features rail-to-rail analog signal handling (0V to V+), internal ESD protection (>2000V per Method 3015.7), and logic inputs compatible with TTL thresholds at +5V or full rail-to-rail operation at other supplies - ensuring robust interfacing with microcontrollers and DAC/ADC data paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct integration into 3.3V, 5V, and 12V systems without level shifting. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| Charge Injection | 5pC max - reduces glitch-induced errors in sample-and-hold and multiplexed ADC front-ends. |
| Turn-On/Off Time | tON = 35ns max, tOFF = 25ns max at +5V - supports high-speed signal routing up to ~10MHz bandwidth. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-monitoring circuits. |
| ESD Protection | >2000V per Method 3015.7 - enhances reliability in handheld and field-deployable equipment. |
| Operating Temp | -40°C to +85°C - qualified for industrial and extended-temperature embedded applications. |
Pinout & Package
SOT23-6 package: 2.9mm × 2.8mm × 1.3mm body, exposed pad optional, lead pitch 0.95mm, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO) | Normally Open switch terminal | Connects to COM when IN = high; open-circuit otherwise - used for active-path signal routing. |
| 2 (COM) | Common analog terminal | Bidirectional I/O node shared between NO and NC paths - serves as input or output depending on signal flow direction. |
| 3 (NC) | Normally Closed switch terminal | Connects to COM when IN = low; open-circuit otherwise - provides default-path continuity for fail-safe designs. |
| 4 (GND) | Ground reference | Analog and digital ground return - must be low-impedance to minimize noise coupling into switched signals. |
| 5 (V+) | Positive supply input | Single power rail for analog and logic sections - must be decoupled locally with ≥0.1µF ceramic capacitor. |
| 6 (IN) | Digital control input | TTL/CMOS-compatible logic signal controlling switch state - high selects NO, low selects NC. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 2–10ns delay prevents momentary shorting between NO and NC paths during transition - critical for fault-tolerant signal routing. |
| Rail-to-rail analog range | Supports 0V to V+ signal swing - eliminates need for external biasing in unipolar sensor or DAC output interfaces. |
| Low power consumption | <5µW quiescent - extends battery life in portable medical devices and handheld test instruments. |
| Low RON flatness | 6Ω max variation over full signal range - maintains consistent gain and linearity in audio and video signal chains. |
| Channel matching | 2Ω max RON mismatch between NO and NC paths - improves common-mode rejection in differential switching applications. |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Switching between microphone inputs and headphone outputs in compact audio codecs. IC Role / Device Role / Timing Role: SPDT analog switch providing selectable signal path under microcontroller GPIO control. Use Value: 5pC charge injection minimizes pop/click artifacts; 60Ω RON ensures low THD in line-level audio paths. | Use Scenario: Multiplexing sensor outputs (thermocouple, RTD, strain gauge) into a shared ADC channel. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance sensors from ADC input capacitance until sampling. Use Value: 10nA max leakage at +85°C preserves measurement accuracy; rail-to-rail range accommodates unbuffered sensor signals. |
| Medical Ultrasound Front-End | Battery-Powered Test Equipment |
Use Scenario: Selecting between transducer elements in phased-array ultrasound beamforming modules. IC Role / Device Role / Timing Role: High-speed SPDT switch enabling time-gated echo signal routing with sub-100ns timing control. Use Value: 35ns tON/25ns tOFF supports >5MHz pulse repetition rates; >2000V ESD protects against clinical environment discharges. | Use Scenario: Configuring signal conditioning paths (gain, filtering, attenuation) in handheld multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: Low-power analog switch reconfiguring analog front-end topology based on measurement mode selection. Use Value: <5µW standby power extends operating time on coin-cell batteries; SOT23-6 footprint saves PCB area in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4544EUT-T | SOT23-6 package with exposed thermal pad; identical electrical specs and pinout. | Enhanced thermal performance for higher ambient or sustained current operation. | Select when board layout allows EP soldering and junction temperature margin is critical. |
| ADG1419BRMZ | 5.5V max supply; 4.7Ω typical RON; no guaranteed break-before-make; 10ns tON. | Better RON and speed but narrower supply range and no BBM - requires external timing control. | Choose for low-RON priority in 5V-only systems where BBM is managed externally. |
Compared with MAX4544ESA, MAX4544EUT-T offers identical functionality with improved thermal dissipation via exposed pad, while ADG1419BRMZ trades guaranteed break-before-make and wide supply range for lower on-resistance and faster switching in 5V applications.
Availability
MAX4544ESA is available at Aetrix Electronics and suitable for audio/video switching, portable instrumentation, and battery-powered test equipment requiring stable component supply across industrial temperature ranges.
Supply support for MAX4544ESA 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.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing in space- and power-constrained systems - targeting portable medical, test, and communications equipment.
FAQ
What is the maximum analog signal voltage range supported by the MAX4544ESA?
The MAX4544ESA supports analog signals from 0V to V+, where V+ ranges from +2.7V to +12V. This rail-to-rail capability means the device can pass full-supply-swing signals without clipping or distortion, making it suitable for unbuffered sensor outputs and DAC interfaces. The specification holds across the full -40°C to +85°C operating temperature range.
Does the MAX4544ESA require external pull-up or pull-down resistors on its IN pin?
No, the MAX4544ESA does not require external pull-up or pull-down resistors on the IN pin. Its TTL/CMOS-compatible logic inputs have defined thresholds (VINL ≤ 0.8V, VINH ≥ 2.4V at +5V supply) and sufficient input hysteresis to ensure reliable switching without external biasing. Driving IN directly from microcontroller GPIO pins is fully supported.
Can the MAX4544ESA be used in a bidirectional signal path?
Yes, the MAX4544ESA is fully bidirectional: the COM, NO, and NC terminals have no intrinsic directionality. Signals may flow from COM to NO/NC or from NO/NC to COM with identical RON, leakage, and charge injection characteristics. This enables flexible use in both source-selection and load-switching configurations within the same design.
What is the thermal performance limitation of the MAX4544ESA in SOT23-6 package?
The MAX4544ESA in SOT23-6 has a maximum continuous power dissipation of 571mW at +70°C, derating by 7.1mW/°C above that temperature. At +85°C ambient, usable power drops to ~464mW. For sustained 10mA switching currents, this limits total voltage drop across RON to ~46V²/0.464W ≈ 100Ω - well above its 60Ω max RON, confirming safe operation under rated conditions.
Is the MAX4544ESA pin-compatible with older Maxim analog switches like the MAX323?
Yes, the MAX4544ESA is explicitly stated as pin-compatible with the MAX323, MAX324, and MAX325 in SO-package variants. This allows drop-in replacement in legacy designs without PCB modification, provided the wider supply range (+2.7V to +12V vs. MAX323's +4.5V to +13V) and improved specifications (lower RON, lower charge injection) are acceptable for the application.
MAX4544ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4544ESA FAQ
1.How can I place an order for MAX4544ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4544ESA 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 MAX4544ESA reliable?
The price and inventory of MAX4544ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4544ESA is usually 5 days.
3.What payment methods are accepted for MAX4544ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4544ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4544ESA?
MAX4544ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4544ESA 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 MAX4544ESA?
For technical support, including MAX4544ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4544ESA requirements.
6.How does Aetrix verify that MAX4544ESA is sourced from the original manufacturer or authorized distributors?
All MAX4544ESA 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 MAX4544ESA meets industry standards.
7.What is the process for return or replacement of MAX4544ESA?
All MAX4544ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4544ESA, 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 MAX4544ESA part is unused and in its original packaging.
Return procedure for MAX4544ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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