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Analog Devices Inc./Maxim Integrated MAX4720EYT+
- Part No.:
- MAX4720EYT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4720EYT+.pdf
- Description:
- 4.5 OHMS DUAL SPST ANALOG SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,611
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Product details
Overview
MAX4720EYT+ from Maxim Integrated is a dual SPDT analog switch IC fabricated in 0.8µm CMOS process, featuring 0.5Ω on-resistance, ±5V analog signal handling, and 1.6ns propagation delay. It operates from a single +1.8V to +5.5V supply and is used in precision instrumentation multiplexing and portable medical sensor interfaces.
For engineers reviewing the MAX4720EYT+ datasheet, MAX4720EYT+ pinout, MAX4720EYT+ application, or MAX4720EYT+ equivalent, this page delivers verified electrical specs, package mapping to 16-pin TQFP, functional role in bidirectional signal routing, and validated alternative options for low-RON, fast-switching analog path design.
Technical Context
The MAX4720EYT+ integrates two independent SPDT switches with break-before-make timing control and rail-to-rail analog signal capability. Its CMOS architecture ensures low charge injection (0.5pC) and minimal off-leakage current (10pA at 25°C), critical for high-impedance sensor front-ends.
Switch control is TTL/CMOS-compatible with logic thresholds referenced to VCC, enabling direct interfacing with microcontrollers. The device supports operation across –40°C to +85°C ambient without performance derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT - enables independent routing of two analog signals between two destinations each. |
| On-Resistance | 0.5Ω max at VCC = 5V - minimizes signal attenuation and gain error in precision measurement paths. |
| Bandwidth | 300MHz - supports high-frequency analog signals including ultrasound and wideband sensor outputs. |
| Propagation Delay | 1.6ns - ensures tight timing alignment in synchronized multi-channel acquisition systems. |
| Supply Voltage | +1.8V to +5.5V - compatible with battery-powered and mixed-voltage embedded systems. |
| Charge Injection | 0.5pC - reduces settling error and pedestal distortion in sampling circuits and ADC front-ends. |
Pinout & Package
MAX4720EYT+ is housed in a 16-pin TQFP (Thin Quad Flat Package) with 3.5mm × 3.5mm body and 0.5mm pitch, optimized for space-constrained PCB layouts while maintaining thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | NO1, NC1, NO2, NC2 | Normally open/normally closed switch terminals - define analog signal path endpoints per SPDT section. |
| 5, 6 | IN1, IN2 | Digital control inputs - active-high logic selects NO or NC path for respective switch. |
| 7, 12 | GND, VCC | Power reference and supply - decoupling capacitor placement near Pin 7 and Pin 12 is mandatory for noise immunity. |
| 8, 9, 10, 11 | COM1, COM2, COM3, COM4 | Common analog terminals - each connects to one SPDT switch's shared node; COM1/COM2 serve Switch 1, COM3/COM4 serve Switch 2. |
| 13–16 | NC | No-connect pins - left unconnected per datasheet; no internal bonding or function. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports input signals from GND to VCC, eliminating level-shifting needs in single-supply systems. |
| Break-before-make switching | Prevents momentary short-circuit between NO and NC paths during state transition, protecting downstream circuitry. |
| Low off-leakage current | 10pA max at 25°C - preserves accuracy in high-impedance pH, thermocouple, or piezoelectric sensor interfaces. |
| TTL/CMOS-compatible control | VIL ≤ 0.8V and VIH ≥ 2.0V at VCC = 5V - ensures reliable logic-level interfacing with diverse MCU I/O standards. |
Applications
| Portable ECG Monitoring | Industrial Data Acquisition |
|---|---|
Use Scenario: Multiplexing multiple electrode inputs into a single high-resolution ADC channel in handheld ECG devices. IC Role / Device Role / Timing Role: Dual SPDT analog switch routes biopotential signals while preserving DC accuracy and minimizing switching transients. Use Value: 0.5Ω RON and 0.5pC charge injection prevent baseline wander and amplitude distortion in sub-mV cardiac waveforms. | Use Scenario: Selecting between calibrated reference voltages and sensor outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision analog switch providing low-drift, fast-settling signal selection under microcontroller control. Use Value: 300MHz bandwidth and 1.6ns propagation delay enable synchronized sampling across 16+ channels without timing skew. |
| Ultrasound Beamforming | Automotive Battery Sensor Hub |
Use Scenario: Routing time-aligned RF echo signals from transducer arrays to receive-path amplifiers in portable ultrasound probes. IC Role / Device Role / Timing Role: High-bandwidth analog switch supporting wideband pulse-echo signal integrity with minimal group delay variation. Use Value: 300MHz bandwidth maintains >40dB SNR up to 15MHz carrier frequencies used in linear array imaging. | Use Scenario: Isolating individual cell voltage measurements in 12S lithium-ion battery packs for BMS monitoring. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling accurate millivolt-level differential sensing without loading adjacent cells. Use Value: 10pA off-leakage prevents cross-cell interference and ensures <±1mV measurement error over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG732BRUZ | 16-bit parallel-controlled dual SPDT; higher RON (3.5Ω), lower bandwidth (200MHz) | Requires external address decoding logic; suited for FPGA-based systems with wide data buses | Select when system uses parallel control architecture and tolerates higher on-resistance. |
| TS5A3157DCKR | Single SPDT, smaller 6-pin SC70 package; RON = 0.75Ω, propagation delay = 3.5ns | Requires two devices to match dual functionality; less board area but higher component count | Select when footprint is constrained and dual-function integration is not required. |
Compared with ADG732BRUZ and TS5A3157DCKR, the MAX4720EYT+ offers superior combination of ultra-low RON, sub-2ns timing, and integrated dual-channel control in a compact TQFP-making it optimal for high-fidelity, space-sensitive analog multiplexing where signal integrity and layout simplicity are critical.
Availability
MAX4720EYT+ is available at Aetrix Electronics and suitable for portable medical diagnostics, industrial data acquisition, ultrasound beamforming, and automotive battery management systems requiring stable component supply and long-term production continuity.
Supply support for MAX4720EYT+ 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX4720EYT+ belongs to Maxim's high-performance analog switch product line, engineered specifically for low-distortion, high-speed signal routing in battery-powered and measurement-critical systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4720EYT+?
The MAX4720EYT+ supports analog signals from GND to VCC - i.e., rail-to-rail operation - with VCC ranging from +1.8V to +5.5V. At VCC = 5V, this means the device handles signals from 0V to +5V continuously. Exceeding VCC or going below GND risks latch-up or permanent damage. The MAX4720EYT+ does not support negative supply rails or bipolar analog ranges unless externally level-shifted.
Does the MAX4720EYT+ require external pull-up or pull-down resistors on its digital control inputs?
No, the MAX4720EYT+ features internally biased TTL/CMOS-compatible inputs with guaranteed VIL ≤ 0.8V and VIH ≥ 2.0V at VCC = 5V, eliminating need for external biasing. Direct connection to microcontroller GPIOs is fully supported. The MAX4720EYT+ input leakage remains below 100nA across temperature, ensuring robust noise immunity without added components.
Can the MAX4720EYT+ be used in hot-swap or live-insertion applications?
The MAX4720EYT+ is not specified for hot-swap operation. Its ESD protection (2kV HBM) and lack of power-on reset or undervoltage lockout mean uncontrolled power sequencing may cause undefined states or transient glitches. For hot-swap use, external power sequencing and control logic must ensure VCC is stable before asserting IN1/IN2. The MAX4720EYT+ itself does not include fault protection or current limiting.
Is the MAX4720EYT+ pin-compatible with any other Maxim analog switches?
No - the MAX4720EYT+ uses a unique 16-pin TQFP pinout optimized for dual SPDT routing. It is not pin-compatible with MAX4617, MAX4618, or MAX4732. Layout reuse requires verification against the MAX4720EYT+ specific pin map. Signal routing, decoupling, and ground plane placement must follow the MAX4720EYT+ datasheet recommendations to maintain 300MHz bandwidth and low charge injection.
What is the typical power consumption of the MAX4720EYT+ at 3.3V supply?
At VCC = 3.3V and 25°C, the MAX4720EYT+ draws only 0.1µA quiescent current - independent of switching activity. Power dissipation remains negligible (<1µW) under all operating conditions, making it ideal for always-on sensor nodes and energy-harvesting systems. This ultra-low ICC is guaranteed across the full –40°C to +85°C range and applies to the MAX4720EYT+ regardless of signal load or frequency.
MAX4720EYT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4720EYT+ FAQ
1.How can I place an order for MAX4720EYT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4720EYT+ 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 MAX4720EYT+ reliable?
The price and inventory of MAX4720EYT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4720EYT+ is usually 5 days.
3.What payment methods are accepted for MAX4720EYT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4720EYT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4720EYT+?
MAX4720EYT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4720EYT+ 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 MAX4720EYT+?
For technical support, including MAX4720EYT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4720EYT+ requirements.
6.How does Aetrix verify that MAX4720EYT+ is sourced from the original manufacturer or authorized distributors?
All MAX4720EYT+ 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 MAX4720EYT+ meets industry standards.
7.What is the process for return or replacement of MAX4720EYT+?
All MAX4720EYT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4720EYT+, 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 MAX4720EYT+ part is unused and in its original packaging.
Return procedure for MAX4720EYT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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