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Analog Devices Inc./Maxim Integrated MAX4544CSA+
- Part No.:
- MAX4544CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4544CSA+.pdf
- Description:
- IC SWITCH SPDT X 1 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:450
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Product details
Overview
MAX4544CSA+ 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 (RON), 5pC max charge injection, guaranteed break-before-make switching, and supports TTL/CMOS logic inputs - enabling reliable use in audio/video multiplexing and portable instrumentation.
For engineers reviewing the MAX4544CSA+ datasheet, MAX4544CSA+ pinout, MAX4544CSA+ application, or MAX4544CSA+ equivalent, key selection criteria include SPDT topology with NC/NO/COM terminals, SOT23-6 package constraints, RON flatness ≤6Ω, leakage <10nA at +85°C, and compatibility with +3.3V/+5V DAC/ADC interface circuits.
Technical Context
The MAX4544CSA+ implements a monolithic CMOS SPDT switch architecture with independent control of normally open (NO) and normally closed (NC) paths via a single digital input. Its internal structure guarantees break-before-make timing (tD = 2–30ns) to prevent signal shorting during state transitions.
It supports rail-to-rail analog signal switching (0V to V+) with bidirectional current capability (±10mA continuous), low dynamic charge injection (≤5pC), and high off-isolation (−76dB at 1MHz), making it suitable for sample-and-hold and precision sensor front-end applications where signal integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct integration with 3.3V and 5V logic and analog subsystems without level-shifting. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal voltage drop and gain error in signal-path applications like audio routing or sensor conditioning. |
| RON Flatness | 6Ω max - maintains consistent channel gain across full analog input range (0V to V+), critical for linearity in data acquisition. |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, supporting accurate operation in sample-and-hold and ADC driver circuits. |
| Turn-On/Off Time | tON = 35ns max, tOFF = 25ns max at +5V - allows fast channel switching in time-multiplexed systems such as multi-channel telemetry. |
| Leakage Current | 10nA max at +85°C - preserves signal fidelity in high-impedance sensor interfaces and battery-powered metering. |
| ESD Protection | 2000V per Method 3015.7 - provides robust handling during board assembly and field operation without external protection. |
Pinout & Package
SOT23-6 package: 2.9mm × 2.8mm footprint, 0.95mm pitch, exposed pad (not electrically connected in standard variant), surface-mount compatible with automated PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO) | Normally Open terminal | Connects to COM when IN = logic high; used as active signal path in default-open configurations. |
| 2 (COM) | Common analog port | Bidirectional I/O node - serves as input or output depending on signal flow direction in SPDT topology. |
| 3 (NC) | Normally Closed terminal | Connects to COM when IN = logic low; provides fail-safe path continuity in power-loss scenarios. |
| 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 input; drives internal switch matrix - no external pull-up/down required. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | Prevents momentary short between NO and NC paths during switching - eliminates signal corruption in critical analog routing. |
| Low RON matching | 2Ω max difference between NO and NC channels - ensures balanced performance in differential or dual-path designs. |
| Rail-to-rail analog operation | Supports full 0V to V+ signal swing - simplifies interface with unipolar sensors, DACs, and op-amp outputs. |
| TTL/CMOS logic compatibility | Operates with standard 3.3V/5V logic thresholds - eliminates need for level translators in mixed-voltage systems. |
| Low power consumption | <5µW quiescent - extends battery life in portable test equipment and handheld medical devices. |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
|
Use Scenario: Multiplexing stereo audio sources to a single codec in a handheld media player. IC Role / Device Role / Timing Role: SPDT analog switch selecting between left/right channel inputs while maintaining low THD and crosstalk. Use Value: 60Ω RON and −90dB crosstalk preserve audio fidelity; 5pC charge injection prevents pop/click artifacts during channel changes. |
Use Scenario: Configuring sensor input ranges (e.g., thermocouple vs. RTD) in a battery-powered data logger. IC Role / Device Role / Timing Role: Precision analog switch isolating calibration references and sensor paths under microcontroller control. Use Value: 10nA max leakage at +85°C avoids measurement drift; break-before-make prevents transient shorts during reconfiguration. |
| Medical Ultrasound Front-End | +3.3V/+5V Data Converter Interface |
|
Use Scenario: Time-gated selection of transducer elements in phased-array ultrasound beamforming. IC Role / Device Role / Timing Role: High-speed SPDT switch enabling precise echo windowing with sub-100ns timing resolution. Use Value: 35ns tON supports >10MHz sampling rates; 2000V ESD protection withstands clinical handling and probe coupling transients. |
Use Scenario: Sharing a single ADC input among multiple +3.3V sensor outputs in an industrial controller. IC Role / Device Role / Timing Role: Low-RON analog multiplexer interfacing rail-to-rail sensor voltages to SAR ADC reference domain. Use Value: 6Ω RON flatness ensures <0.1% gain error across full 0–3.3V range; SOT23-6 footprint saves PCB area in dense BOMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | Higher supply range (±15V dual or +12V single), 4.7Ω RON, but larger MSOP-10 package and higher cost. | Better suited for high-precision test equipment requiring lower RON and wider voltage headroom. | Select ADG1419BRMZ only if RON <5Ω and dual-supply operation are mandatory; not drop-in due to pin count and layout change. |
| TS5A23157DCUR | Lower RON (0.9Ω typ), smaller X2SON-6 package, but limited to +5.5V max and no guaranteed break-before-make. | Ideal for space-constrained consumer electronics where speed and size outweigh timing safety requirements. | Choose TS5A23157DCUR for compact +5V systems needing ultra-low RON; verify absence of break-before-make does not impact system reliability. |
Compared with ADG1419BRMZ and TS5A23157DCUR, the MAX4544CSA+ uniquely balances guaranteed break-before-make timing, 2000V ESD robustness, and SOT23-6 compatibility - making it optimal for ruggedized portable instrumentation where signal integrity and fault tolerance are prioritized over minimum RON or smallest footprint.
Availability
MAX4544CSA+ is available at Aetrix Electronics and suitable for battery-operated systems, audio/video switching, and +3.3V/+5V DAC/ADC interface applications requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MAX4544CSA+ 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 and mixed-signal ICs for industrial, communications, and consumer markets.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing - targeting portable, battery-powered, and space-constrained systems where precision, low power, and robustness are essential.
FAQ
What is the maximum analog signal voltage range supported by the MAX4544CSA+?
The MAX4544CSA+ supports rail-to-rail analog signals from 0V to V+, where V+ ranges from +2.7V to +12V. At +5V supply, this means signals from 0V to +5V can be switched with minimal RON variation (≤6Ω flatness). This capability eliminates the need for external level-shifting circuitry when interfacing with unipolar sensors or DAC outputs.
Does the MAX4544CSA+ provide guaranteed break-before-make switching?
Yes, the MAX4544CSA+ guarantees break-before-make operation with a typical delay (tD) of 2–30ns, as confirmed in the datasheet's Electrical Characteristics table and Figure 3b. This prevents momentary short-circuiting between NO and NC paths during logic transitions - a critical feature for protecting downstream circuitry in precision analog systems.
What is the on-resistance (RON) specification for the MAX4544CSA+ at +3.3V supply?
At +3.3V supply, the MAX4544CSA+ has a maximum on-resistance of 125Ω (typical 50Ω), as specified in the "Electrical Characteristics-Single +3.3V Supply" section. This value is measured with 1mA current through the channel and accounts for variation across temperature and signal voltage - ensuring predictable insertion loss in low-voltage portable designs.
Can the MAX4544CSA+ operate with TTL-level logic inputs when powered from +3.3V?
Yes, the MAX4544CSA+ accepts TTL/CMOS-compatible logic inputs across its full supply range. When powered from +3.3V, VINH is specified at 2.4V min and VINL at 0.8V max - fully compatible with standard 3.3V logic families. No external level translation is needed, simplifying interface design with microcontrollers and FPGAs.
What package type is used for the MAX4544CSA+ and what are its key mechanical features?
The MAX4544CSA+ uses the SOT23-6 package: 2.9mm × 2.8mm body size, 0.95mm lead pitch, and 1.45mm maximum height. It features gull-wing leads for visual solder-joint inspection and is RoHS-compliant. The top marking "AAAM" identifies the MAX4544 variant per Maxim's ordering information table.
MAX4544CSA+ 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):
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4544CSA+ FAQ
1.How can I place an order for MAX4544CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4544CSA+ 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 MAX4544CSA+ reliable?
The price and inventory of MAX4544CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4544CSA+ is usually 5 days.
3.What payment methods are accepted for MAX4544CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4544CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4544CSA+?
MAX4544CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4544CSA+ 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 MAX4544CSA+?
For technical support, including MAX4544CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4544CSA+ requirements.
6.How does Aetrix verify that MAX4544CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX4544CSA+ 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 MAX4544CSA+ meets industry standards.
7.What is the process for return or replacement of MAX4544CSA+?
All MAX4544CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4544CSA+, 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 MAX4544CSA+ part is unused and in its original packaging.
Return procedure for MAX4544CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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