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Analog Devices Inc./Maxim Integrated MAX4784ETE+
- Part No.:
- MAX4784ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX4784ETE+.pdf
- Description:
- IC SWITCH SPDT X 4 1OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,745
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Product details
Overview
MAX4784ETE+ from Maxim Integrated is a low-voltage, quad 2:1 analog multiplexer IC with 0.7Ω on-resistance at +2.7V supply, 20ns turn-on time, and rail-to-rail signal handling up to +4.2V. It features +1.8V CMOS-compatible logic inputs, 0.1Ω RON flatness, and operates across –40°C to +85°C in a 3mm × 3mm thin QFN-EP package. It enables precise signal routing in battery-powered audio systems.
For engineers reviewing the MAX4784ETE+ datasheet, MAX4784ETE+ pinout, MAX4784ETE+ application, or MAX4784ETE+ equivalent, key selection criteria include on-resistance matching across channels, break-before-make timing (1ns), off-isolation (–67dB at 1MHz), and compatibility with 1.6V–4.2V single-supply operation in space-constrained portable designs.
Technical Context
The MAX4784ETE+ implements four independent bidirectional 2:1 analog switches controlled by two address bits (A0, A1) and an active-low enable (EN). Each switch supports rail-to-rail analog signals (GND to V+) and exhibits matched on-resistance (ΔRON ≤ 0.2Ω at +2.7V) and ultra-low charge injection (5pC).
Its CMOS construction ensures low leakage (±5nA COMOFF at +85°C), high off-isolation (–67dB), and low crosstalk (–95dB), making it suitable for precision multiplexing where signal integrity and channel-to-channel consistency are critical in low-power mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 0.7Ω at V+ = +2.7V - enables <10mV drop at 100mA, preserving signal fidelity in low-voltage sensor/audio paths |
| RON flatness | 0.1Ω at V+ = +2.7V - ensures consistent gain/attenuation across full analog input range (0V to V+) |
| Turn-on/turn-off time | tON = 20ns, tOFF = 8ns - supports >10MHz switching rates in data acquisition and comms routing |
| Off-isolation | –67dB at 1MHz - suppresses coupling between active and inactive channels in multi-source systems |
| Crosstalk | –95dB at 1MHz - prevents interference between adjacent switched audio/video signals |
| Supply voltage range | +1.6V to +4.2V - compatible with Li-ion, Li-poly, and regulated 1.8V/3.3V rails without level-shifting |
| Logic compatibility | +1.8V CMOS - accepts standard low-voltage microcontroller GPIOs directly, reducing BOM count |
Pinout & Package
MAX4784ETE+ uses a 16-pin 3mm × 3mm thin QFN-EP package with exposed pad (internally connected to GND) for thermal enhancement. Pin 1 is A0; pin 16 is V+; pin 8 is GND; pin 15 is EN; pins 1–4, 6–7, 9–10, 12–14 are analog terminals (COM/NO/NC per channel); pins 5 and 11 are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Address inputs | Select one of four NO/NC pairs per COM terminal; binary-encoded control with no external decoding logic required |
| EN | Active-low enable | Pulls all switches into high-impedance state when high - enables system-level power gating and fault isolation |
| COM1–COM4 | Analog common terminals | Bidirectional I/O nodes; each connects to one load (e.g., ADC input, codec line) shared across two signal sources |
| NO1–NO4, NC1–NC4 | Normally open / normally closed analog terminals | Provide fail-safe routing: NC path conducts when A0/A1 = 0, NO path conducts when A0/A1 = 1 - supports redundancy or default signal paths |
| V+, GND, EP | Power and ground | V+ supplies internal CMOS switches; GND and EP form low-inductance return path - mandatory for stable RON and THD performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output voltages from GND to V+ (up to +4.2V) - eliminates clamping diodes or external level shifters in wide-dynamic-range systems |
| Break-before-make timing | 1ns guaranteed - prevents momentary shorting between NO and NC paths during switching, critical for avoiding signal glitches in audio/video |
| Ultra-low quiescent power | <2µA supply current - extends battery life in always-on monitoring or standby-mode portable devices |
| Low THD | 0.008% at 20Hz–20kHz - preserves audio fidelity in headset, speaker, and ringtone routing applications |
| High channel-to-channel matching | ΔRON ≤ 0.2Ω - ensures uniform gain/loss across all four channels in multi-channel data acquisition front-ends |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Selecting between multiple microphone inputs or speaker outputs in a smartphone or wearable audio subsystem. IC Role / Device Role / Timing Role: Quad 2:1 analog multiplexer routing bidirectional audio paths with sub-20ns switching and <0.01% THD. Use Value: Enables dynamic reconfiguration of audio topology without mechanical relays or discrete FET arrays, saving PCB area and power. |
Use Scenario: Multiplexing sensor outputs (e.g., temperature, pressure, accelerometer) to a single ADC in a compact IoT node. IC Role / Device Role / Timing Role: Low-RON, low-leakage analog switch providing accurate, low-noise signal transfer at 1.8V operation. Use Value: Maintains measurement accuracy (<0.1% gain error) across channels while supporting battery operation down to 1.6V. |
| Battery-Powered System Power Routing | Communications Circuit Signal Switching |
|
Use Scenario: Dynamically selecting between primary and backup power sources (e.g., battery vs. USB) for a PMIC or system rail. IC Role / Device Role / Timing Role: High-current-capable (±300mA continuous) analog switch with fail-safe NC/NO configuration. Use Value: Provides seamless switchover with no voltage droop or glitch, leveraging 0.7Ω RON to minimize conduction loss. |
Use Scenario: Isolating or routing RF front-end signals (e.g., antenna diversity, band selection) in cellular modems or Wi-Fi modules. IC Role / Device Role / Timing Role: High-bandwidth (123MHz –3dB BW), low-crosstalk analog switch managing baseband or IF paths. Use Value: Delivers clean signal transfer with –95dB crosstalk and –67dB off-isolation, preventing inter-channel interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4780ETE+ | Replaces EN pin with A1 address input; identical RON, timing, and package - lacks global enable functionality | Suitable only where per-channel addressing suffices; not usable where system-wide switch disable is required | Select MAX4784ETE+ when centralized enable control is needed; choose MAX4780ETE+ only if A1 is preferred over EN and no global shutdown is required |
| TMUX1574RSVR | Lower RON (0.5Ω), wider supply (1.08V–4.5V), but higher leakage (±25nA) and no NC/NO dual-path architecture | Optimized for ultra-low-voltage MCU interfaces; lacks fail-safe NC path for default signal continuity | Prefer MAX4784ETE+ when NC/NO redundancy, sub-10nA leakage, or proven –40°C to +85°C performance is mandatory |
Compared with MAX4780ETE+, the MAX4784ETE+ adds system-level enable control at no cost to RON or speed; versus TMUX1574RSVR, it trades marginal RON reduction for robust NC/NO architecture and tighter leakage specs essential in precision battery-powered systems.
Availability
MAX4784ETE+ is available at Aetrix Electronics and suitable for audio signal routing, low-voltage data acquisition, and battery-powered system power routing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4784ETE+ 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, communications, and consumer applications.
The MAX4784ETE+ belongs to Maxim's low-voltage analog switch product line, engineered specifically for high-fidelity, low-power signal routing in portable and battery-operated systems where size, efficiency, and signal integrity are critical.
FAQ
What is the maximum analog signal voltage range supported by the MAX4784ETE+?
The MAX4784ETE+ supports rail-to-rail analog signals from GND to V+, with V+ operating from +1.6V to +4.2V. At +2.7V supply, it handles 0V to +2.7V signals with minimal RON variation (0.1Ω flatness). This allows direct interfacing with sensors, codecs, and ADCs without external level-shifting circuitry, preserving signal integrity across the full supply range.
Does the MAX4784ETE+ support true bidirectional signal flow?
Yes, the MAX4784ETE+ supports fully bidirectional analog signal flow on all COM, NO, and NC terminals. Its CMOS switch architecture imposes no directionality - signals can pass from COM to NO/NC or vice versa with identical RON, capacitance, and leakage characteristics. This enables flexible use in both source-selection and load-switching configurations within the same design.
How does the EN pin function in the MAX4784ETE+ compared to the MAX4780ETE+?
The MAX4784ETE+ includes an active-low EN pin that places all four switches into high-impedance state when driven high, enabling system-level power gating. In contrast, the MAX4780ETE+ replaces EN with A1, offering only per-channel addressing. Thus, MAX4784ETE+ provides centralized control unavailable in MAX4780ETE+, critical for fault recovery or sleep-mode isolation in safety-aware designs.
What is the thermal role of the exposed pad (EP) on the MAX4784ETE+ QFN package?
On the MAX4784ETE+, the exposed pad (EP) is internally connected to GND and must be soldered to a large PCB ground plane. It serves as the primary thermal conduction path - dissipating heat from the die and lowering junction-to-board thermal resistance. Proper EP connection is mandatory to maintain RON stability and ensure reliable operation at full rated current (±300mA) across –40°C to +85°C.
Can the MAX4784ETE+ operate reliably at 1.6V supply voltage?
Yes, the MAX4784ETE+ is fully specified down to +1.6V supply. At this voltage, typical RON is 5Ω (vs. 0.7Ω at +2.7V), tON/tOFF increase to 35ns/20ns, and logic thresholds adjust to VIH = +1.0V/VIL = +0.4V. All parameters remain guaranteed across –40°C to +85°C, enabling operation in deep-undervoltage scenarios such as end-of-life battery conditions in portable equipment.
MAX4784ETE+ 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:
- 4
- On-State Resistance (Max):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 4.2V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 10ns
- -3db Bandwidth:
- 123MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 33pF, 60pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -95dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (3x3)
MAX4784ETE+ FAQ
1.How can I place an order for MAX4784ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4784ETE+ 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 MAX4784ETE+ reliable?
The price and inventory of MAX4784ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4784ETE+ is usually 5 days.
3.What payment methods are accepted for MAX4784ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4784ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4784ETE+?
MAX4784ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4784ETE+ 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 MAX4784ETE+?
For technical support, including MAX4784ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4784ETE+ requirements.
6.How does Aetrix verify that MAX4784ETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4784ETE+ 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 MAX4784ETE+ meets industry standards.
7.What is the process for return or replacement of MAX4784ETE+?
All MAX4784ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4784ETE+, 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 MAX4784ETE+ part is unused and in its original packaging.
Return procedure for MAX4784ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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