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Analog Devices Inc./Maxim Integrated MAX4691EBE+T
- Part No.:
- MAX4691EBE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFBGA, CSPBGA
- Datasheet:
-
MAX4691EBE+T.pdf
- Description:
- IC MUX 8:1 70OHM 16UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,146
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Product details
Overview
MAX4691EBE+T from Maxim Integrated is an 8-channel analog multiplexer IC configured as a single-pole, 8-throw (SP8T) switch with rail-to-rail signal handling, 70Ω max on-resistance at +2.7V supply, guaranteed break-before-make timing (2ns), and 16-bump UCSP package (2mm × 2mm). It operates from a single +2V to +11V supply or dual ±2V to ±5.5V supplies and is used in low-voltage audio routing and battery-powered instrumentation.
For engineers reviewing the MAX4691EBE+T datasheet, MAX4691EBE+T pinout, MAX4691EBE+T application, or MAX4691EBE+T equivalent, this page delivers verified electrical specs, UCSP package layout, real-world use cases in portable signal switching, and validated alternative parts for design flexibility and supply continuity.
Technical Context
The MAX4691EBE+T implements a CMOS transmission-gate architecture with independent logic-level translators driving analog switches directly from V+ and V− rails. Its address decoding uses three digital inputs (A/B/C) to select one of eight bidirectional analog paths between common X and inputs X0–X7.
It guarantees break-before-make operation to prevent signal shorting during channel transitions, supports 1.8V logic compatibility at +3V supply, and maintains rail-to-rail analog signal range (0V to V+ or V− to V+) without ground reference-enabling true bipolar or single-supply operation in precision signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8:1 analog multiplexer (SP8T), bidirectional, single-ended |
| Supply Range | +2V to +11V single supply or ±2V to ±5.5V dual supply - enables direct interfacing with Li-ion, 3.3V, and ±5V systems |
| On-Resistance (max) | 70Ω at +2.7V - ensures minimal voltage drop and gain error in sensor/ADC front-ends |
| On-Resistance Match | 6Ω max across channels at +2.7V - critical for multi-channel ratiometric measurements |
| Leakage Current (max) | ±20nA at +85°C - preserves accuracy in high-impedance pH or thermocouple circuits |
| Enable Turn-On Time | 350ns max at -40°C to +85°C - supports fast channel scanning in data acquisition |
| Off-Isolation | -70dB at 100kHz - suppresses crosstalk between unused channels in audio routing |
Pinout & Package
MAX4691EBE+T is housed in a 16-bump, 0.5mm-pitch UCSP package measuring 2mm × 2mm, with solder bumps arranged in a 4×4 grid. The package has no exposed pad and requires controlled assembly per Maxim's UCSP reliability guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X | Analog common terminal | Output node shared by all 8 switched paths; connects to ADC input or amplifier summing junction |
| X0–X7 | Analog input terminals | Eight independent bidirectional analog inputs; routed to X only when selected by A/B/C address |
| A, B, C | Digital address inputs | 3-bit binary control (A = LSB) selecting one of eight channels; 1.8V-compatible at +3V supply |
| EN | Digital enable input | Active-high global disable: drives all switches open when high, overriding A/B/C state |
| V+ | Positive supply | Powers analog switches and internal logic; sets upper analog signal limit (V+ to V− range) |
| V− | Negative supply | Required for dual-supply operation; tied to GND for single-supply mode; sets lower analog limit |
| GND | Digital ground reference | Reference for EN, A/B/C logic levels only; analog signals are fully floating between V+ and V− |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - essential for ±5V op-amp outputs or unipolar 0–5V sensors |
| Guaranteed break-before-make | 2ns minimum dead time prevents momentary shorting between channels during address changes |
| Low 1nA leakage (typ) | Minimizes offset drift in high-Z medical electrode interfaces or precision reference switching |
| 1.8V logic compatibility | Direct interface with modern ultra-low-power MCUs (e.g., ARM Cortex-M0+) without level shifters |
| UCSP footprint reduction | 2mm × 2mm area saves >70% board space vs. comparable QFN - critical for wearable and IoT edge nodes |
Applications
| Portable Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching microphone inputs, headphone outputs, or line-level sources in compact Bluetooth speakers and voice assistants. IC Role / Device Role / Timing Role: 8:1 analog mux selects active audio path under MCU control; EN pin enables mute-on-sleep functionality. Use Value: Rail-to-rail operation preserves full dynamic range of 0–3.3V audio DAC outputs; 70Ω RON avoids insertion loss in 10kΩ load paths. |
Use Scenario: Multiplexing thermistor, RTD, and strain gauge sensors into a single SAR ADC in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch front-end with matched RON (6Ω max) enabling ratiometric measurement accuracy. Use Value: ±20nA leakage at +85°C prevents >1LSB error in 24-bit ADC systems with >1MΩ source impedance. |
| Cellular Baseband Signal Switching | Industrial Modem Interface Management |
Use Scenario: Routing RF front-end calibration signals, antenna diversity paths, or auxiliary ADC/DAC lines in LTE/NB-IoT modules. IC Role / Device Role / Timing Role: Low-capacitance (9pF off-capacitance), fast tON/tOFF (≤350ns) analog switch supporting <1MHz calibration sequencing. Use Value: -70dB off-isolation at 100kHz blocks LO leakage from interfering with sensitive receive chains during calibration. |
Use Scenario: Managing analog line-driver selection, modem reset signaling, and analog loopback test paths in industrial gateways. IC Role / Device Role / Timing Role: Robust SP8T switch operating from wide +2V to +11V supply - tolerates brown-out conditions in 9–36V DC-powered modems. Use Value: Dual-supply capability (±2V to ±5.5V) allows direct integration with legacy RS-232/RS-485 transceivers requiring negative rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BCPZ-REEL7 | 8:1 mux in 20-lead LFCSP (4mm × 4mm); 4.7Ω RON at +5V but requires ≥±4.5V dual supply or +12V single supply | Better RON and bandwidth, but larger footprint and higher minimum supply voltage | Select for high-speed (>10MHz) or low-RON precision applications where board space and supply headroom allow |
| TMUX1308RTER | 8:1 mux in 16-pin WQFN (3.5mm × 3.5mm); 120Ω RON at +3.3V; no dual-supply support; 1.2V logic compatible | Smaller logic voltage range, higher RON, but superior 1.2V MCU compatibility and lower cost | Select for cost-sensitive, single-supply 1.8V/3.3V systems where RON < 100Ω is acceptable |
Compared with ADG1408BCPZ-REEL7 and TMUX1308RTER, MAX4691EBE+T uniquely balances ultra-compact UCSP packaging, dual-supply flexibility, and guaranteed break-before-make - making it optimal for space-constrained, mixed-rail portable instrumentation where channel integrity is non-negotiable.
Availability
MAX4691EBE+T is available at Aetrix Electronics and suitable for portable audio routing, battery-powered data acquisition, and cellular baseband signal switching requiring stable component supply across extended temperature (-40°C to +85°C) and long-lifecycle programs.
Supply support for MAX4691EBE+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) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4691EBE+T belongs to Maxim's low-voltage analog switch family, engineered for rail-to-rail performance, ultra-small packaging, and robust operation in battery-critical and space-constrained systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4691EBE+T?
The MAX4691EBE+T supports rail-to-rail analog signals from V− to V+. When operated from a single +3.3V supply (V− = GND), the range is 0V to +3.3V. With dual ±5V supplies, it handles signals from -5V to +5V. This eliminates level-shifting requirements in mixed-supply systems and preserves signal fidelity in precision sensor interfaces.
Does the MAX4691EBE+T require external pull-up or pull-down resistors on its digital control pins?
No, the MAX4691EBE+T does not require external biasing on A, B, C, or EN pins. Its digital inputs have built-in leakage-limited structure with ±1µA max input current, and logic thresholds (VIH = 1.4V, VIL = 0.4V at +3V supply) are designed for direct connection to standard GPIOs. Pull resistors are unnecessary unless system-level noise immunity mandates them.
Can the MAX4691EBE+T be used in a single-supply configuration with V− left unconnected?
No - V− must be explicitly tied to GND in single-supply operation. Leaving V− floating violates absolute maximum ratings and risks latch-up or undefined switching behavior. The datasheet mandates V− = GND for +2V to +11V single-supply use, and the internal ESD diodes rely on this connection for proper biasing and leakage control.
How does the UCSP package of the MAX4691EBE+T impact PCB layout and thermal design?
The 16-bump UCSP package (2mm × 2mm) eliminates leads and reduces thermal resistance compared to QFN, but requires strict adherence to Maxim's assembly guidelines: solder mask-defined pads, controlled reflow profile, and board material compatibility. Thermal dissipation is limited to 659mW at +70°C ambient, so high-current analog paths (>10mA) need careful IR-drop analysis despite low RON.
Is the MAX4691EBE+T pin-compatible with other members of the MAX4691–MAX4694 family?
No - MAX4691EBE+T is not pin-compatible with MAX4692EBE+T, MAX4693EBE+T, or MAX4694EBE+T. Although all share the same 16-bump UCSP footprint, their pin functions differ significantly: MAX4691 uses A/B/C address lines and X0–X7 inputs, while MAX4692 has dual 4:1 mux structure (X0–X3/Y0–Y3), and MAX4693/MAX4694 implement SPDT topologies with distinct control and I/O assignments.
MAX4691EBE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 70Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 11V
- Voltage - Supply, Dual (V±):
- ±2V ~ 5.5V
- Switch Time (Ton, Toff) (Max):
- 300ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 0.1pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 68pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -75dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UCSP (2x2)
MAX4691EBE+T FAQ
1.How can I place an order for MAX4691EBE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4691EBE+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 MAX4691EBE+T reliable?
The price and inventory of MAX4691EBE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4691EBE+T is usually 5 days.
3.What payment methods are accepted for MAX4691EBE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4691EBE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4691EBE+T?
MAX4691EBE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4691EBE+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 MAX4691EBE+T?
For technical support, including MAX4691EBE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4691EBE+T requirements.
6.How does Aetrix verify that MAX4691EBE+T is sourced from the original manufacturer or authorized distributors?
All MAX4691EBE+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 MAX4691EBE+T meets industry standards.
7.What is the process for return or replacement of MAX4691EBE+T?
All MAX4691EBE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4691EBE+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 MAX4691EBE+T part is unused and in its original packaging.
Return procedure for MAX4691EBE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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