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Analog Devices Inc./Maxim Integrated MAX4784EGE
- Part No.:
- MAX4784EGE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MAX4784EGE.pdf
- Description:
- IC SWITCH SPDT X 4 1OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,246
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Product details
Overview
MAX4784EGE 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 from GND to V+ (1.6V–4.2V). It features +1.8V CMOS logic compatibility, <1µW quiescent power, and operates in battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4784EGE datasheet, MAX4784EGE pinout, MAX4784EGE application, or MAX4784EGE equivalent, key selection criteria include on-resistance flatness (0.1Ω), break-before-make timing (1ns), off-isolation (−67dB at 1MHz), and thin QFN-EP package thermal performance for portable electronics.
Technical Context
The MAX4784EGE implements four independent bidirectional 2:1 analog switches using CMOS process technology, each with separate normally open (NO) and normally closed (NC) terminals controlled by A0/A1 address inputs and EN enable. Its internal switch architecture supports rail-to-rail analog signals without level-shifting.
Switching is governed by a digital control matrix where A0/A1 select channel pairing (e.g., COM1/NO1/NC1 and COM2/NO2/NC2 share one address pair), while EN globally disables all channels into high-impedance state. Logic inputs tolerate up to +4.2V regardless of V+ supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 4.2V single supply - enables direct integration with Li-ion battery (3.0–4.2V) and low-power microcontrollers. |
| On-Resistance (RON) | 0.7Ω at V+ = +2.7V, 100mA - minimizes voltage drop and power loss in signal path for precision analog routing. |
| RON Flatness | 0.1Ω over full analog range (GND to V+) - ensures consistent gain and linearity across input signal swing. |
| Turn-On / Turn-Off Time | 20ns / 8ns at V+ = +2.7V - supports high-speed multiplexing in audio and communication circuits. |
| Off-Isolation | −67dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-signal systems. |
| Charge Injection | 5pC - limits transient voltage error during switching, critical for sample-and-hold and ADC front-end use. |
| Logic Compatibility | +1.8V CMOS input thresholds - allows direct interface with 1.8V FPGA I/O and low-voltage processors without level shifters. |
Pinout & Package
MAX4784EGE is housed in a 16-pin 3mm × 3mm thin QFN package with exposed pad (EP), optimized for thermal dissipation and space-constrained PCB layouts in handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | Selects NO/NC pair for COM1/COM2 (low) or COM3/COM4 (high); referenced to GND. |
| A1 | Address Input | Used only in MAX4784 - selects between first (A1=0) or second (A1=1) dual-channel group. |
| EN | Enable Input | Active-low global enable; high state forces all COM outputs into high-impedance mode. |
| COM1–COM4 | Analog Common Terminal | Bidirectional signal port per switch; connects to system signal source or load. |
| NO1–NO4 | Normally Open Terminal | Connects to COM when selected; remains open otherwise - used for primary signal path routing. |
| NC1–NC4 | Normally Closed Terminal | Connects to COM when unselected - enables fail-safe or default-path configurations. |
| V+ | Positive Supply | Single 1.6V–4.2V analog/digital supply; requires local 0.1µF bypass capacitor to GND. |
| GND | Ground Reference | Common return for analog and digital domains; EP must be soldered to large ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full GND-to-V+ input/output swing without distortion or clipping - essential for audio codecs and sensor interfaces. |
| Break-before-make switching | Guaranteed 1ns minimum dead time prevents momentary shorting between NO and NC paths - avoids signal glitches in critical routing. |
| Ultra-low quiescent power | <2µA supply current at V+ = +3.6V - extends battery life in always-on portable systems such as modems and cellular handsets. |
| High off-isolation and low crosstalk | −67dB off-isolation and −95dB crosstalk at 1MHz - maintains signal integrity in dense multi-channel audio/video routing. |
| Exposed thermal pad (EP) | Internally connected to GND; improves thermal resistance by >30% vs. standard QFN - enables sustained operation at 85°C ambient. |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Switching between internal speaker, external headset, and ringtone generator in a cellular phone. IC Role / Device Role / Timing Role: Quad analog multiplexer routing bidirectional audio paths with minimal THD (0.008%) and no level shifting. Use Value: Enables compact, low-power audio subsystem with zero external bias components and seamless path selection under 1.8V logic control. |
Use Scenario: Multiplexing multiple sensor outputs (temperature, accelerometer, microphone) into a single ADC input in a wearable health monitor. IC Role / Device Role / Timing Role: Low-RON analog switch providing precise, low-noise signal selection before digitization. Use Value: Maintains measurement accuracy with 0.1Ω RON flatness and 5pC charge injection - avoids baseline drift and quantization error. |
| PCMCIA Card Interface | Hard Drive Power Management |
|
Use Scenario: Isolating and routing legacy parallel ATA signals between host controller and removable PCMCIA storage card. IC Role / Device Role / Timing Role: High-speed analog switch enabling hot-plug-compatible signal gating with 20ns switching. Use Value: Prevents bus contention during insertion/removal via break-before-make timing and high off-isolation (−67dB). |
Use Scenario: Controlling power delivery to auxiliary drive circuits (e.g., spindle motor driver, cache SRAM) based on activity state. IC Role / Device Role / Timing Role: Low-leakage (±5nA) analog switch acting as precision power gate for 1.8V/3.3V subsystems. Use Value: Reduces standby current by isolating unused blocks while maintaining fast wake-up response (<30ns). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4784EUE | Same die, 16-pin TSSOP package - no exposed thermal pad; 9.4mW/°C derating vs. 14.7mW/°C for QFN. | Preferred for through-hole prototyping or legacy board designs with TSSOP footprints. | Select MAX4784EUE if thermal budget permits higher junction temperature rise or if reflow compatibility with existing TSSOP assembly lines is required. |
| TMUX1574RTER | TI part: 0.5Ω RON at 3.3V, but only supports 1.08V–3.6V supply; no NC terminals; different pinout and truth table. | Suitable for new designs prioritizing lowest RON, but not drop-in compatible due to missing NC function and logic mapping differences. | Choose TMUX1574RTER only when NC functionality is unnecessary and layout redesign is acceptable for improved on-resistance. |
Compared with MAX4784EGE, MAX4784EUE offers identical electrical performance in a larger, thermally less efficient package, while TMUX1574RTER trades NC capability and voltage range for marginally lower RON - making MAX4784EGE optimal for space- and thermal-constrained battery-powered systems requiring fail-safe routing.
Availability
MAX4784EGE is available at Aetrix Electronics and suitable for audio signal routing, battery-powered data acquisition, PCMCIA interface design, and hard drive power management requiring stable component supply across industrial temperature range (−40°C to +85°C).
Supply support for MAX4784EGE 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 MAX4780/MAX4784 family was engineered specifically for ultra-low-voltage, high-fidelity analog signal routing in portable electronics - emphasizing rail-to-rail operation, sub-1µW quiescent power, and robust switching integrity.
FAQ
What is the maximum supply voltage rating for MAX4784EGE?
The MAX4784EGE has an absolute maximum supply voltage of +4.6V referenced to GND, but its specified operational range is +1.6V to +4.2V. Operating beyond +4.2V may degrade RON flatness and increase leakage, and is not guaranteed per datasheet specifications. The MAX4784EGE must never be subjected to voltages exceeding +4.6V to avoid permanent damage.
Does MAX4784EGE support bidirectional signal flow?
Yes, the MAX4784EGE supports fully bidirectional analog signal routing on all COM, NO, and NC terminals. Its CMOS switch architecture imposes no directionality - signals can pass from COM to NO, NO to COM, or any combination, provided voltage stays within GND to V+. This makes MAX4784EGE suitable for both multiplexer and demultiplexer configurations in the same design.
How does the EN pin function in MAX4784EGE?
The EN pin on MAX4784EGE is an active-low enable input. When pulled low (≤0.5V), the device operates normally under A0/A1 control. When driven high (≥1.4V at +2.7V supply), all four COM outputs enter high-impedance state - disconnecting all signal paths regardless of address inputs. This feature enables system-level power gating without altering channel selection logic.
What is the purpose of the exposed pad (EP) on MAX4784EGE?
The exposed pad (EP) on MAX4784EGE is internally connected to GND and must be soldered to a large PCB ground plane. It reduces thermal resistance by ~35% compared to non-EP QFN packages, allowing the MAX4784EGE to sustain continuous 300mA per channel at +85°C ambient. EP is not an electrical signal terminal and must not be left floating or connected to any net other than GND.
Can MAX4784EGE operate with a 1.8V supply and still interface with 3.3V logic?
Yes, MAX4784EGE logic inputs (A0, A1, EN) tolerate up to +4.2V regardless of V+ supply voltage. With V+ = +1.8V, driving A0/A1/EN from a 3.3V microcontroller is fully compliant - VIH threshold is +1.0V (min), and input leakage remains ≤±1µA. This eliminates need for external level shifters in mixed-voltage systems using MAX4784EGE.
MAX4784EGE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-QFN (4x4)
MAX4784EGE FAQ
1.How can I place an order for MAX4784EGE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4784EGE 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 MAX4784EGE reliable?
The price and inventory of MAX4784EGE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4784EGE is usually 5 days.
3.What payment methods are accepted for MAX4784EGE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4784EGE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4784EGE?
MAX4784EGE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4784EGE 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 MAX4784EGE?
For technical support, including MAX4784EGE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4784EGE requirements.
6.How does Aetrix verify that MAX4784EGE is sourced from the original manufacturer or authorized distributors?
All MAX4784EGE 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 MAX4784EGE meets industry standards.
7.What is the process for return or replacement of MAX4784EGE?
All MAX4784EGE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4784EGE, 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 MAX4784EGE part is unused and in its original packaging.
Return procedure for MAX4784EGE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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