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Analog Devices Inc./Maxim Integrated MAX4544CPA+
- Part No.:
- MAX4544CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4544CPA+.pdf
- Description:
- IC SWITCH SPDT X 1 60OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:290
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Product details
Overview
MAX4544CPA+ 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 TTL/CMOS logic inputs. It is used in audio/video switching, test equipment, and +3V/+5V ADC/DAC interfaces.
For engineers reviewing the MAX4544CPA+ datasheet, MAX4544CPA+ pinout, MAX4544CPA+ application, or MAX4544CPA+ equivalent, key selection criteria include SPDT topology with break-before-make timing, low leakage (<10nA at +85°C), SOT23-6 package compatibility, and single-supply operation down to +2.7V without level-shifting circuitry.
Technical Context
The MAX4544CPA+ implements a CMOS transmission-gate architecture optimized for bidirectional analog signal switching across its COM–NO and COM–NC paths. Its internal control logic enforces guaranteed break-before-make timing (2ns–10ns delay) to prevent momentary shorting during state transitions.
It features rail-to-rail analog signal handling (0V to V+), input-compatible logic thresholds (VINL ≤ 0.8V, VINH ≥ 2.4V at +5V supply), and ESD protection exceeding 2000V per Method 3015.7 - all while consuming less than 5µW quiescent power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct interface with 3.3V and 5V logic/systems without external regulators |
| 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 error in sample-and-hold and multiplexed ADC front-ends |
| Break-Before-Make Delay | 2ns to 10ns - prevents signal shorting during SPDT transition, critical for fault-tolerant routing |
| Leakage Current | 10nA max at +85°C - maintains signal integrity in high-impedance sensor or battery-monitoring circuits |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V - supports medium-speed data acquisition and communication channel switching |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field operation |
Pinout & Package
SOT23-6 package: 6-pin surface-mount plastic DIP-compatible outline with exposed pad (EP) connected to V+ per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO) | Normally Open switch terminal | Connects to COM only when IN = high; used as one of two selectable analog outputs |
| 2 (COM) | Common analog port | Bidirectional signal path shared between NO and NC; must remain within 0V to V+ range |
| 3 (NC) | Normally Closed switch terminal | Connects to COM only when IN = low; provides second SPDT path with guaranteed isolation during transition |
| 4 (GND) | Ground reference | Return path for logic and substrate bias; requires low-impedance connection to system ground plane |
| 5 (V+) | Positive supply input | Single power rail for analog and digital sections; EP (exposed pad) must be soldered to V+ for thermal and ESD performance |
| 6 (IN) | Digital control input | TTL/CMOS-compatible logic input; high = connect COM to NO, low = connect COM to NC |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | Prevents momentary short between NO and NC paths during switching - essential for safe signal routing in mixed-signal systems |
| Rail-to-rail analog signal range | Supports full 0V to V+ signal swing without distortion or clipping - simplifies design in unipolar sensor and DAC output stages |
| Low 5pC charge injection | Minimizes voltage step errors at switch closure - critical for precision sampling in medical ultrasound and instrumentation |
| 2.7V–12V single-supply operation | Eliminates need for dual supplies or level shifters in portable and industrial equipment powered by Li-ion or 5V rails |
| TTL/CMOS logic compatibility | Accepts standard logic thresholds across full supply range - enables direct interfacing with microcontrollers and FPGAs |
Applications
| Audio and Video Switching | Test Equipment Signal Routing |
|---|---|
Use Scenario: Selecting between multiple audio sources (mic, line-in, Bluetooth codec) before feeding into a single ADC or amplifier stage. IC Role / Device Role / Timing Role: SPDT analog switch providing isolated, low-distortion path selection with break-before-make timing to avoid pop/click artifacts. Use Value: 60Ω RON and 5pC charge injection preserve signal fidelity; 25ns tOFF enables fast channel hopping in automated test fixtures. |
Use Scenario: Multiplexing calibration references or sensor inputs into a shared precision measurement front-end in benchtop DMMs or signal analyzers. IC Role / Device Role / Timing Role: Precision SPDT switch ensuring nanovolt-level integrity via sub-10nA leakage and rail-to-rail signal handling. Use Value: 10nA max leakage at +85°C prevents drift in high-Z reference paths; 2000V ESD rating withstands repeated probe contact. |
| +3V/+5V DAC/ADC Interfaces | Battery-Powered Instrumentation |
Use Scenario: Isolating DAC output from multiple load points (e.g., filter bank, driver stage, monitoring node) in programmable gain amplifiers or waveform generators. IC Role / Device Role / Timing Role: Low-RON SPDT switch enabling flexible output routing without degrading THD or settling time. Use Value: 35ns tON and 6Ω RON flatness maintain bandwidth and linearity; single +3.3V operation eliminates auxiliary supply. |
Use Scenario: Managing power domain sequencing and sensor signal gating in handheld multimeters or portable gas detectors operating from coin-cell or LiPo batteries. IC Role / Device Role / Timing Role: Ultra-low-power analog switch minimizing standby current while preserving signal path integrity during sleep/wake cycles. Use Value: <5µW quiescent power extends battery life; 2.7V minimum supply allows operation down to end-of-life battery voltage. |
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 | Same electrical specs; -40°C to +85°C temp grade and SOT23-6 package with top mark AAAM | Extended temperature range suits industrial/outdoor deployments where CPA+'s 0°C to +70°C range is insufficient | Select EUT-T for automotive under-hood, factory automation, or outdoor telecom equipment requiring wider thermal margin |
| ADG1419BRMZ | Higher RON (1.3Ω typ), lower leakage (1pA), but requires dual ±5V or single +12V supply; LFCSP-10 package | Superior precision for high-end test gear, but incompatible pinout and higher supply complexity vs. MAX4544CPA+ | Choose ADG1419BRMZ only when sub-ohm RON and femtoamp leakage outweigh layout redesign and supply overhead |
Compared with MAX4544CPA+, MAX4544EUT-T offers identical functionality with extended temperature support, while ADG1419BRMZ trades simplicity and low-voltage operation for ultra-low RON and leakage - making MAX4544CPA+ optimal for cost-sensitive, battery-powered, or 3.3V/5V embedded designs requiring proven reliability and drop-in SOT23-6 fit.
Availability
MAX4544CPA+ is available at Aetrix Electronics and suitable for audio/video switching, test equipment signal routing, and +3V/+5V DAC/ADC interfaces requiring stable component supply across industrial, medical, and communications end markets.
Supply support for MAX4544CPA+ 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 applications.
The MAX4541–MAX4544 family was engineered to deliver precision, low-power, single-supply analog switching for portable and space-constrained systems - emphasizing rail-to-rail signal handling, guaranteed break-before-make, and robust ESD tolerance without external components.
FAQ
What is the maximum analog signal voltage range supported by the MAX4544CPA+?
The MAX4544CPA+ supports an analog signal range from 0V to V+, meaning it can pass signals spanning the full supply rail - e.g., 0V to +5V when powered from +5V. This rail-to-rail capability eliminates the need for signal conditioning or level shifting in most 3.3V and 5V systems, and is explicitly confirmed in the Electrical Characteristics table and Applications Information section of the MAX4544CPA+ datasheet.
Does the MAX4544CPA+ provide break-before-make switching, and what is its typical timing?
Yes, the MAX4544CPA+ guarantees break-before-make operation with a delay (tD) of 2ns to 10ns, as specified in the Electrical Characteristics table under "Break-Before-Make Time Delay". This feature is intrinsic to the MAX4544CPA+'s internal logic design and prevents momentary shorting between NO and NC paths - a critical requirement in fault-tolerant signal routing applications such as medical diagnostics and automated test equipment.
What is the on-resistance (RON) specification for the MAX4544CPA+, and how does it vary with supply voltage?
The MAX4544CPA+ has a maximum on-resistance of 60Ω at +5V supply and 125Ω at +3.3V supply, with typical values of 33Ω and 50Ω respectively. These values are measured at VCOM = 3.5V and ICOM = 1.0mA, and are confirmed across temperature in the Electrical Characteristics tables. The RON vs. COM voltage curves (Figure 1) further validate monotonic behavior over the full 0V–V+ range.
Can the MAX4544CPA+ operate from a +3.3V supply, and what performance trade-offs occur?
Yes, the MAX4544CPA+ is fully specified for +3.3V operation (V+ = +3.0V to +3.6V). At this supply, RON increases to 125Ω max (vs. 60Ω at +5V), tON/tOFF extend to 400ns/175ns max, and leakage remains ≤10nA at +85°C. All parameters are tested and guaranteed per the +3.3V Electrical Characteristics table - confirming reliable function in modern low-voltage embedded systems without derating assumptions.
Is the MAX4544CPA+ pin-compatible with older Maxim analog switches like the MAX323?
Yes, the MAX4544CPA+ is explicitly stated as pin-compatible with the MAX323, MAX324, and MAX325 in the Features section of its datasheet. This applies to functional pin mapping (IN, COM, NO, NC, GND, V+) in the SOT23-6 footprint - enabling drop-in replacement in legacy designs without PCB modification, provided thermal and ESD requirements (e.g., EP connection to V+) are observed.
MAX4544CPA+ 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4544CPA+ FAQ
1.How can I place an order for MAX4544CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4544CPA+ 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 MAX4544CPA+ reliable?
The price and inventory of MAX4544CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4544CPA+ is usually 5 days.
3.What payment methods are accepted for MAX4544CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4544CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4544CPA+?
MAX4544CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4544CPA+ 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 MAX4544CPA+?
For technical support, including MAX4544CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4544CPA+ requirements.
6.How does Aetrix verify that MAX4544CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX4544CPA+ 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 MAX4544CPA+ meets industry standards.
7.What is the process for return or replacement of MAX4544CPA+?
All MAX4544CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4544CPA+, 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 MAX4544CPA+ part is unused and in its original packaging.
Return procedure for MAX4544CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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