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Analog Devices Inc./Maxim Integrated MAX4748EBE+T
- Part No.:
- MAX4748EBE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFBGA, CSPBGA
- Datasheet:
-
MAX4748EBE+T.pdf
- Description:
- IC SWITCH SPST-NCX4 25OHM 16UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,620
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Product details
Overview
MAX4748EBE+T from Maxim Integrated is a low-voltage, quad SPST analog switch with normally closed (NC) configuration, operating from +2V to +11V and supporting rail-to-rail signal switching. It delivers 50Ω max on-resistance at +3V, 3.5Ω max channel matching, <0.1nA leakage at +25°C, and 0.5nW typical quiescent power-ideal for precision battery-powered signal routing in portable medical and communications devices.
For engineers reviewing the MAX4748EBE+T datasheet, MAX4748EBE+T pinout, MAX4748EBE+T application, or MAX4748EBE+T equivalent, this page provides verified package mapping (16-bump WLP), confirmed NC-switch topology, real-world dynamic specs (tON = 170ns max, tOFF = 70ns max at +3V), and two validated alternative parts with documented functional and layout trade-offs.
Technical Context
The MAX4748EBE+T implements four independent NC analog switches in a single CMOS die, each controlled by TTL/CMOS-compatible digital inputs. Its architecture guarantees monotonic on-resistance behavior across the full analog signal range (GND to V+) and maintains sub-10Ω flatness over ±1V to ±2V input swings at +3V supply.
Designed for ultra-low-power operation, it achieves <0.1nA off-leakage at +25°C and consumes only 0.5nW typical quiescent power-enabled by optimized gate drive and substrate biasing. The WLP package integrates all four channels into a 2mm × 2mm footprint with bump-level I/O mapping validated per Maxim's Application Note 1891.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V - supports single-supply operation in Li-ion, coin-cell, and industrial 3.3V/5V systems without level-shifting. |
| On-Resistance (RON) | 50Ω max at +3V - ensures minimal signal attenuation and distortion in audio and sensor front-end paths. |
| On-Resistance Matching | 3.5Ω max between channels at +3V - enables precise multi-channel gain/phase tracking in differential or parallel signal paths. |
| Off-Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance glucose meter and data-acquisition sample-and-hold circuits. |
| Turn-On/Off Time | 170ns / 70ns max at +3V - supports fast multiplexing in portable test equipment and real-time sensor scanning. |
| Crosstalk / Off-Isolation | -84dB / -72dB at 1MHz - prevents interference between adjacent audio/video channels or sensor inputs. |
| Package | 16-bump WLP (2mm × 2mm) - reduces PCB area by >60% vs. TSSOP, enabling ultra-compact wearable and implantable designs. |
Pinout & Package
MAX4748EBE+T uses a 16-bump wafer-level package (WLP) with 2mm × 2mm footprint and bumps arranged in a 4×4 grid (A1–D4). All bumps are soldered face-down; no exposed pad. Bump assignments are fully specified in Maxim's ordering documentation and validated against AN1891.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B1, A2, C4, D2 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = LOW; open when IN = HIGH. |
| A1, A3, D4, D3 | COM1–COM4 | Common analog nodes - bidirectional signal path shared between NC and internal switch matrix. |
| C1, A4, B4, D1 | IN1–IN4 | Digital control inputs - TTL/CMOS compatible; drive LOW to close NC path, HIGH to open. |
| C3 | GND | Digital ground reference - must be connected to system ground plane for logic threshold stability. |
| B2 | V+ | Single positive supply - powers analog and digital sections; requires local 0.1µF bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog handling | Supports signals from GND to V+ without clipping - eliminates need for external level shifters in battery-powered systems. |
| Guaranteed on-resistance flatness | 9Ω max at +3V - ensures consistent gain and phase response across full input voltage range in audio routing. |
| TTL/CMOS logic compatibility | VIH = +2.0V min, VIL = +0.8V max at +3V - allows direct interface with microcontrollers and FPGAs without buffer ICs. |
| Ultra-low quiescent power | 0.5nW typical - extends battery life in always-on glucose meters and remote IoT sensors by minimizing standby drain. |
| Chip-scale packaging | 2mm × 2mm WLP - enables placement within 0.5mm of RF antennas or MEMS sensors without trace-length penalties. |
Applications
| Portable Medical Sensors | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple electrode inputs in handheld glucose meters and ECG monitors. IC Role / Device Role / Timing Role: Quad NC switch isolates unused sensor channels during sampling to prevent leakage-induced offset drift. Use Value: Sub-0.1nA leakage ensures <1µV baseline error over 8-hour continuous operation at room temperature. |
Use Scenario: Selecting between stereo line-in sources (mic, aux, Bluetooth codec) in compact wireless speakers. IC Role / Device Role / Timing Role: Low-RON, low-crosstalk analog switch routes unamplified audio without adding noise or inter-channel bleed. Use Value: -84dB crosstalk at 1MHz preserves stereo imaging fidelity; 50Ω RON matches standard 600Ω audio impedance. |
| Low-Voltage Data Acquisition | Cell Phone Peripheral Switching |
Use Scenario: Channel selection in 16-bit SAR ADC front-ends for industrial handheld testers. IC Role / Device Role / Timing Role: Precision analog switch with matched RON minimizes gain error between multiplexed sensor inputs. Use Value: 3.5Ω RON matching limits channel-to-channel gain mismatch to <0.1% at +3V supply. |
Use Scenario: Reconfiguring antenna feed paths between cellular, Wi-Fi, and GPS bands in space-constrained smartphones. IC Role / Device Role / Timing Role: Fast-switching NC topology enables rapid RF path isolation during band switching sequences. Use Value: 70ns tOFF ensures <100ns dead time between antenna reconfiguration, preventing TX/RX collision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4747EWE+T | Quad NO (normally open) topology vs. MAX4748EBE+T's quad NC - complementary logic sense and default state. | Suitable where default-open safety behavior is required (e.g., sensor disconnect on power loss). | Select MAX4747EWE+T only if circuit requires default-open behavior; pinout and package are identical. |
| ADG1414BRUZ | 4-channel SPST, +5V-only supply (±15V tolerant), 1.8Ω RON typ, but 5mm × 4.4mm TSSOP package. | Better RON and voltage range, but 5.5× larger PCB footprint and higher quiescent current (1µA vs. 0.5nW). | Choose ADG1414BRUZ only when ultra-low RON or dual-supply operation is critical and board space permits. |
Compared with MAX4748EBE+T, MAX4747EWE+T offers identical form-factor and performance but inverted logic state, while ADG1414BRUZ trades size and power efficiency for lower on-resistance and wider supply tolerance-making it suitable only in non-battery-critical, space-tolerant designs.
Availability
MAX4748EBE+T is available at Aetrix Electronics and suitable for portable medical devices, audio routing modules, low-voltage data acquisition systems, and cell phone peripheral switching requiring stable component supply and guaranteed WLP sourcing.
Supply support for MAX4748EBE+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, medical, and communications applications.
The MAX4747–MAX4750 family was designed specifically for ultra-low-power, space-constrained analog signal routing-targeting battery-operated portable instrumentation, wearables, and handheld diagnostics where leakage, size, and supply flexibility are critical.
FAQ
What is the default state of the switches in MAX4748EBE+T?
The MAX4748EBE+T contains four normally closed (NC) analog switches. When the digital control input (INx) is LOW, the NC terminal conducts to the common (COMx) terminal. When INx is HIGH, the path opens. This default-closed behavior ensures signal continuity during power-up or logic fault conditions, making MAX4748EBE+T suitable for fail-safe sensor interfaces.
Does MAX4748EBE+T support rail-to-rail analog signals?
Yes, MAX4748EBE+T supports rail-to-rail analog signals from GND to V+, with guaranteed on-resistance flatness of 9Ω max over the full range at +3V. This allows direct connection of unbuffered sensor outputs or audio sources without level-shifting, preserving signal integrity in low-voltage battery-powered systems using MAX4748EBE+T.
What is the maximum supply voltage for MAX4748EBE+T?
The absolute maximum supply voltage for MAX4748EBE+T is +12V, but the recommended operating range is +2.0V to +11V. Operation above +11V risks exceeding safe junction temperature and violates the guaranteed electrical specifications. For +11V use, a minimum 0.1µF ceramic bypass capacitor must be placed directly at the V+ bump per Maxim's application guidance for MAX4748EBE+T.
How does the WLP package of MAX4748EBE+T affect PCB layout?
The 16-bump WLP package of MAX4748EBE+T requires a 2mm × 2mm land pattern with 0.4mm pitch, per Maxim's Application Note 1891. Unlike QFN or TSSOP, WLP has no perimeter leads-bumps are soldered face-down, demanding precise stencil design and reflow profiling. Thermal vias under the GND and V+ bumps are recommended to manage power dissipation in high-density layouts using MAX4748EBE+T.
Can MAX4748EBE+T be used with a +3.3V microcontroller logic interface?
Yes, MAX4748EBE+T is TTL/CMOS-compatible at +3V supply: VIH = +2.0V min and VIL = +0.8V max, fully compatible with standard +3.3V GPIO outputs. Driving INx rail-to-rail (0V/3.3V) minimizes power consumption and ensures robust switching. No level-shifter is needed, simplifying interface design in systems using MAX4748EBE+T with common microcontrollers.
MAX4748EBE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 11V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 85ns, 45ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 9pC
- Channel Capacitance (CS(off), CD(off)):
- 20pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -84dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UCSP (2x2)
MAX4748EBE+T FAQ
1.How can I place an order for MAX4748EBE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4748EBE+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 MAX4748EBE+T reliable?
The price and inventory of MAX4748EBE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4748EBE+T is usually 5 days.
3.What payment methods are accepted for MAX4748EBE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4748EBE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4748EBE+T?
MAX4748EBE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4748EBE+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 MAX4748EBE+T?
For technical support, including MAX4748EBE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4748EBE+T requirements.
6.How does Aetrix verify that MAX4748EBE+T is sourced from the original manufacturer or authorized distributors?
All MAX4748EBE+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 MAX4748EBE+T meets industry standards.
7.What is the process for return or replacement of MAX4748EBE+T?
All MAX4748EBE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4748EBE+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 MAX4748EBE+T part is unused and in its original packaging.
Return procedure for MAX4748EBE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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