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Analog Devices Inc./Maxim Integrated MAX4543ESA+T
- Part No.:
- MAX4543ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4543ESA+T.pdf
- Description:
- IC SW SPST-NO/NCX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,859
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Product details
Overview
MAX4543ESA+T from Maxim Integrated is a dual SPST analog switch with one normally open (NO) and one normally closed (NC) channel, designed for precision signal routing in single-supply systems. It operates from +2.7V to +12V, delivers 60Ω max on-resistance, 2Ω max RON matching between channels, and guarantees break-before-make switching. It is used in battery-powered audio/video switching, sample-and-hold circuits, and +3V/+5V ADC/DAC interfaces.
For engineers reviewing the MAX4543ESA+T datasheet, MAX4543ESA+T pinout, MAX4543ESA+T application, or MAX4543ESA+T equivalent, key selection criteria include guaranteed break-before-make timing (2ns min), low 5pC charge injection, ±10mA continuous current rating, and SOT23-8 package compatibility with space-constrained portable designs.
Technical Context
The MAX4543ESA+T integrates two independent SPST switches - one NO and one NC - enabling SPDT-like functionality without external components. Its CMOS/TTL-compatible control inputs accept rail-to-rail logic levels across the full supply range (+2.7V to +12V), and internal protection diodes support overvoltage resilience up to ±0.3V beyond V+ or GND.
It features matched on-resistance (≤2Ω difference between channels) and flat on-resistance (≤6Ω variation over 0–V+ signal range), ensuring minimal gain error in precision instrumentation paths. Break-before-make operation is hardware-guaranteed with ≤30ns delay at +25°C, preventing momentary shorting during channel transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - supports direct interface with 3.3V, 5V, and 12V logic and analog rails |
| On-Resistance (RON) | 60Ω max at +5V - ensures <0.1% gain error in 600Ω impedance interfaces |
| RON Matching | 2Ω max between channels - enables precise differential or ratiometric signal routing |
| Charge Injection | 5pC max - limits voltage glitch to <5mV on 1nF hold capacitors in sample-and-hold stages |
| Break-Before-Make Delay | 2ns min (typ. 10ns) - prevents signal shorting during channel switching in multiplexed sensor front-ends |
| ESD Protection | 2000V per Method 3015.7 - meets industrial handling requirements without external protection |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance pH or thermocouple signal paths |
Pinout & Package
MAX4543ESA+T is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch, JEDEC MS-012AC compliant, and rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM1 | Analog common terminal, Channel 1 | Bidirectional signal path; connects to NO1 or NC1 based on IN1 state |
| 2 - IN1 | Digital control input, Channel 1 | TTL/CMOS-compatible; low = connect COM1 to NC1, high = connect COM1 to NO1 |
| 3 - GND | Ground reference | Return path for supply and logic; must be low-impedance for leakage and noise control |
| 4 - NC2 | Normally closed terminal, Channel 2 | Internally connected to COM2 when IN2 = low; open when IN2 = high |
| 5 - COM2 | Analog common terminal, Channel 2 | Bidirectional path; connects to NO2 or NC2 depending on IN2 logic level |
| 6 - IN2 | Digital control input, Channel 2 | Independent TTL/CMOS input; controls switching state of Channel 2 only |
| 7 - NO1 | Normally open terminal, Channel 1 | Connects to COM1 only when IN1 = high; isolated otherwise |
| 8 - V+ | Positive supply input | Single power rail; powers analog switch core and input buffers; must be applied before signals |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | Hardware-enforced minimum 2ns delay prevents simultaneous conduction in SPDT mode |
| Low 5pC charge injection | Minimizes settling error in precision sampling applications with ≤1nF hold capacitors |
| 6Ω max RON flatness | Maintains consistent gain across full 0V–V+ analog signal range, critical for linear signal chains |
| 2Ω max RON matching | Enables accurate differential switching and ratiometric measurements without calibration |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V thresholds at +5V and rail-to-rail inputs at other supplies - simplifies controller interfacing |
Applications
| Audio Signal Routing | Portable Instrumentation Front-End |
|---|---|
Use Scenario: Switching between microphone and line-in inputs in handheld test meters or audio recorders. IC Role / Device Role / Timing Role: Dual-channel analog switch providing isolated signal paths with break-before-make to prevent pop/click artifacts. Use Value: 60Ω RON and 2Ω matching preserve SNR and channel balance; 5pC charge injection avoids DC offset in AC-coupled paths. |
Use Scenario: Multiplexing thermocouple, RTD, and voltage inputs into a single ADC in field-deployable sensors. IC Role / Device Role / Timing Role: Precision SPST/SPDT switch enabling sequential acquisition with guaranteed channel isolation. Use Value: 10nA max leakage at +85°C prevents measurement drift; 2000V ESD withstand protects against field-handling events. |
| Sample-and-Hold Circuits | +3V/+5V Data Converter Interfaces |
Use Scenario: Controlling hold capacitor charging in precision data acquisition systems with microsecond-level sampling. IC Role / Device Role / Timing Role: Low-charge-injection switch isolating the hold capacitor from source impedance during acquisition phase. Use Value: 5pC max injection limits voltage error to <5mV on 1nF capacitors; fast 35ns tON supports ≥10MHz sampling rates. |
Use Scenario: Interfacing dual-output DACs or multi-channel ADCs with FPGA or microcontroller I/O in compact embedded systems. IC Role / Device Role / Timing Role: Dual SPST switch routing reference or output signals while maintaining channel independence. Use Value: Single +3.3V or +5V supply eliminates level-shifting; SOT23-8 footprint fits high-density PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4543EKA-T | SOT23-8 package with AAAG top mark; identical electrical specs and temperature range (-40°C to +85°C) | Same functional behavior but smaller footprint; requires reflow-optimized layout for thermal pad | Select for space-constrained portable designs where board area is prioritized over SO package manufacturability |
| ADG1419BRMZ | Single SPDT, not dual SPST; 4.7Ω RON, 1.5pC charge injection, +15V supply capable; 10-lead MSOP package | Higher performance per channel but lacks independent dual-channel control; no built-in break-before-make | Choose when ultra-low RON and charge injection are critical, and SPDT topology suffices for the system architecture |
Compared with MAX4543ESA+T, MAX4543EKA-T offers identical switching performance in a smaller SOT23-8 package, while ADG1419BRMZ provides lower on-resistance and charge injection but requires external timing control for break-before-make and occupies more PCB area.
Availability
MAX4543ESA+T is available at Aetrix Electronics and suitable for battery-operated systems, sample-and-hold circuits, and +3V/+5V DAC/ADC interfaces requiring stable component supply across industrial temperature ranges.
Supply support for MAX4543ESA+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4541–MAX4544 family was designed for low-voltage, single-supply analog signal routing in portable and precision instrumentation systems - emphasizing low power, low distortion, and robust ESD tolerance.
FAQ
What is the maximum supply voltage rating for MAX4543ESA+T?
The MAX4543ESA+T has an absolute maximum supply voltage of +13V, with recommended operating range from +2.7V to +12V. Exceeding +13V may cause permanent damage. Operation at +12V is fully specified and validated per the datasheet's electrical characteristics tables, including RON, leakage, and switching times.
Does MAX4543ESA+T support break-before-make switching, and is it guaranteed?
Yes, MAX4543ESA+T guarantees break-before-make operation with a minimum delay of 2ns (typ. 10ns) between channel disconnect and reconnect. This is a hardware-enforced feature specific to the MAX4543 and MAX4544 variants - confirmed in the "Features" section and truth table of the datasheet.
What is the on-resistance flatness specification for MAX4543ESA+T, and why does it matter?
MAX4543ESA+T specifies 6Ω max RON flatness - the difference between maximum and minimum on-resistance over the full 0V to V+ analog signal range. This ensures consistent gain and minimal THD in audio, sensor, and precision measurement paths where signal amplitude varies widely.
Can MAX4543ESA+T operate with a +3.3V supply, and how do key parameters change?
Yes, MAX4543ESA+T is fully specified at +3.3V (3.0V–3.6V). At +3.3V, typical RON increases to 125Ω (vs. 33Ω at +5V), tON/tOFF extend to 400ns/175ns, and leakage remains ≤10nA at +85°C. All logic thresholds remain compatible with 3.3V CMOS drivers.
Is MAX4543ESA+T pin-compatible with older Maxim analog switches like MAX323?
Yes, MAX4543ESA+T is explicitly stated as pin-compatible with MAX323, MAX324, and MAX325 in the datasheet's "Features" section. Pin functions and physical layout match across the SO-8 package, enabling drop-in replacement where improved RON, leakage, and ESD performance are required.
MAX4543ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- 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
MAX4543ESA+T FAQ
1.How can I place an order for MAX4543ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4543ESA+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 MAX4543ESA+T reliable?
The price and inventory of MAX4543ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4543ESA+T is usually 5 days.
3.What payment methods are accepted for MAX4543ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4543ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4543ESA+T?
MAX4543ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4543ESA+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 MAX4543ESA+T?
For technical support, including MAX4543ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4543ESA+T requirements.
6.How does Aetrix verify that MAX4543ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4543ESA+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 MAX4543ESA+T meets industry standards.
7.What is the process for return or replacement of MAX4543ESA+T?
All MAX4543ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4543ESA+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 MAX4543ESA+T part is unused and in its original packaging.
Return procedure for MAX4543ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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