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Analog Devices Inc./Maxim Integrated MAX4748EBE
- Part No.:
- MAX4748EBE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFBGA, CSPBGA
- Datasheet:
-
MAX4748EBE.pdf
- Description:
- IC SWITCH SPST-NCX4 25OHM 16UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
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Product details
Overview
MAX4748EBE from Maxim Integrated is a low-voltage, quad SPST analog switch with normally closed (NC) configuration, operating from +2V to +11V and handling rail-to-rail signals. It delivers 50Ω max on-resistance at +3V, 0.1nA max leakage at +25°C, and 0.5nW typical quiescent power-ideal for precision signal routing in battery-powered glucose meters and portable audio systems.
For engineers reviewing the MAX4748EBE datasheet, MAX4748EBE pinout, MAX4748EBE application, or MAX4748EBE equivalent, this page provides verified package mapping (16-bump UCSP), channel-specific NC topology, leakage/flatness/on-resistance specs across supply voltages, and real-world timing and isolation performance at 1MHz.
Technical Context
The MAX4748EBE implements four independent NC analog switches in a single monolithic CMOS die, each controlled by TTL/CMOS-compatible logic inputs. Its architecture guarantees rail-to-rail signal handling and supports break-before-make operation only in MAX4749/MAX4750 variants-not applicable here.
All channels share a common V+ and GND, with no internal connection between COM/NO/NC terminals beyond switch paths. The UCSP-16 package enables 2mm × 2mm board footprint while maintaining full electrical specification compliance over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.0V to +11V single supply-enables direct integration into 2.5V, 3.3V, and 5V systems without level shifting. |
| On-Resistance (RON) | 50Ω max at +3V-ensures minimal signal attenuation and distortion in low-voltage sensor front-ends. |
| On-Resistance Matching | 3.5Ω max between channels at +3V-critical for matched gain paths in differential or multi-channel data acquisition. |
| Leakage Current | <0.1nA at TA = +25°C-preserves accuracy in high-impedance medical sensor interfaces like glucose meter electrodes. |
| Off-Isolation | –72dB at 1MHz-prevents crosstalk between inactive channels in audio routing or multiplexed AFEs. |
| Turn-On/Off Time | 170ns / 70ns max at +3V-supports fast switching in portable instrument sampling control loops. |
| Package | 16-bump UCSP (2mm × 2mm)-reduces PCB area by >70% vs. TSSOP, ideal for space-constrained wearables. |
Pinout & Package
MAX4748EBE uses a 16-bump wafer-level chip-scale package (UCSP™) with 2mm × 2mm footprint and bumps arranged in a 4×4 grid. Pin 1 (A1) is NC; pins A2, B1, C4, D2 are NC1–NC4; pins A1, A3, D4, D3 are COM1–COM4; pins C1, A4, B4, D1 are IN1–IN4; pin C3 is GND; pin B2 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | No Connection | Unbonded bump-must be left floating or tied to GND per layout guidelines; no electrical function. |
| A2, B1, C4, D2 | NC1–NC4 | Normally closed analog terminals-conduct to respective COMx when INx = LOW; open when INx = HIGH. |
| A1, A3, D4, D3 | COM1–COM4 | Common analog nodes-bidirectional signal path shared between NCx and internal switch matrix. |
| C1, A4, B4, D1 | IN1–IN4 | Digital control inputs-TTL/CMOS compatible; drive LOW to close NC switch, HIGH to open. |
| C3 | GND | Digital ground reference-must connect to system ground plane with low-inductance path. |
| B2 | V+ | Single positive supply-powers analog and digital sections; requires local 0.1µF bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from GND to V+-eliminates external clamping diodes in ±0.3V headroom designs. |
| Guaranteed on-resistance flatness | 9Ω max variation over full signal range at +3V-maintains consistent gain/attenuation in precision instrumentation. |
| Ultra-low quiescent power | 0.5nW typical-extends battery life in always-on medical devices without compromising switching speed. |
| Low charge injection | 7pC typical-minimizes voltage glitch on high-impedance nodes during switching, critical for ADC sample-hold integrity. |
| High off-isolation | –72dB at 1MHz-ensures signal integrity in multi-source audio/video routing where channel separation is mandatory. |
Applications
| Glucose Meters | Portable Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing electrode signals from disposable test strips into a low-noise analog front-end. IC Role / Device Role / Timing Role: Quad NC switch isolates unused electrodes and routes active measurement path under microcontroller control. Use Value: 0.1nA leakage prevents baseline drift; 50Ω RON ensures minimal loading of pH-sensitive electrochemical sensors. |
Use Scenario: Selecting between microphone inputs, line-in, or headset outputs in Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-capacitance NC switch enables fast, silent channel switching without pop/click artifacts. Use Value: –72dB off-isolation suppresses inter-channel crosstalk; 2mm × 2mm UCSP fits within tight acoustic cavity constraints. |
| Low-Voltage Data Acquisition | Cell Phone Sensor Hub |
Use Scenario: Configuring programmable gain amplifier (PGA) feedback networks and input ranges in handheld DMMs. IC Role / Device Role / Timing Role: Precision-matched NC switches set resistor ratios with <3.5Ω RON delta across channels. Use Value: On-resistance matching preserves gain accuracy; rail-to-rail operation supports ±2.5V input spans without dual supplies. |
Use Scenario: Isolating ambient light, proximity, and accelerometer signals before ADC sampling in smartphone mainboard. IC Role / Device Role / Timing Role: Ultra-low-power NC switch gates sensor outputs only during active read cycles. Use Value: 0.5nW quiescent power minimizes standby current; 170ns turn-on allows sub-millisecond sensor polling intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4747EBE-T | Quad NO (normally open) topology vs. MAX4748EBE's NC configuration-complementary logic sense and default state. | Suitable where default-open safety behavior is required (e.g., disconnect on power loss). | Select MAX4747EBE-T only if circuit requires default-open behavior; pinout and package identical but logic polarity inverted. |
| ADG1414BRUZ | Higher RON (1.8Ω typ at +5V), wider supply (±5V to ±16.5V), larger 16-TSSOP package-no UCSP option. | Better for industrial high-voltage signal routing; unsuitable for space-constrained portable designs. | Choose ADG1414BRUZ only when bipolar supply or sub-2Ω RON is mandatory; not drop-in due to package and footprint mismatch. |
Compared with MAX4748EBE, MAX4747EBE-T offers identical form factor and electrical envelope but inverted default state, while ADG1414BRUZ trades miniaturization for higher voltage capability and lower on-resistance-making MAX4748EBE optimal for ultra-compact, low-leakage, single-supply medical and portable electronics.
Availability
MAX4748EBE is available at Aetrix Electronics and suitable for glucose meters, portable audio systems, low-voltage data-acquisition modules, and cell phone sensor hubs requiring stable component supply across extended production lifecycles.
Supply support for MAX4748EBE 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 MAX4747–MAX4750 family targets ultra-low-power, space-constrained signal routing in battery-operated medical and portable electronics-emphasizing leakage control, rail-to-rail operation, and miniature UCSP packaging.
FAQ
What is the default switch state of MAX4748EBE?
The MAX4748EBE features four normally closed (NC) analog switches. When all logic inputs (IN1–IN4) are held LOW, the NC terminals conduct to their respective COM terminals. Driving any INx HIGH opens that switch path. This default-closed behavior ensures signal continuity during power-up or controller reset-critical in fail-safe medical monitoring circuits using MAX4748EBE.
Does MAX4748EBE support rail-to-rail analog signals?
Yes, MAX4748EBE supports rail-to-rail analog signals from GND to V+ across its full operating supply range (+2V to +11V). This is confirmed in the Electrical Characteristics table under "Analog Signal Range" (VCOM_, VNO_, VNC_ = 0 to V+), enabling direct interface with sensors and ADCs without external level-shifting-especially valuable in low-voltage glucose meter designs using MAX4748EBE.
What is the maximum on-resistance of MAX4748EBE at +3V?
The maximum on-resistance (RON) of MAX4748EBE is 50Ω when operated from a +3V supply, measured at ICOM_ = 5mA and VNO_/VNC_ = +1.5V over the full temperature range (–40°C to +85°C). At +25°C, typical RON is 17Ω. This value is guaranteed and tested-key for calculating worst-case signal attenuation in precision front-end designs using MAX4748EBE.
Can MAX4748EBE be used with a +11V supply?
Yes, MAX4748EBE operates up to +11V (absolute maximum V+ = +12V). However, the datasheet mandates a minimum 0.1µF bypass capacitor placed as close as possible to the V+ pin to ensure stability. At +11V, RON drops to ~8.2Ω (typ), but leakage and dynamic parameters remain within spec-making MAX4748EBE viable for higher-voltage portable instrumentation where MAX4748EBE's UCSP footprint remains advantageous.
Is MAX4748EBE pin-compatible with MAX4747EBE-T?
Yes, MAX4748EBE and MAX4747EBE-T share identical 16-bump UCSP-16 packaging, pinout, and footprint-including NC1–NC4 vs. NO1–NO4 terminal assignments at same bump locations (A2/B1/C4/D2 for switched terminals, A1/A3/D4/D3 for COM, etc.). The only functional difference is default switch state (NC vs. NO); thus, they are mechanically interchangeable in PCB layout, though firmware logic must invert control signals when substituting MAX4748EBE for MAX4747EBE-T.
MAX4748EBE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- 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
- 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 (2.02x2.02)
MAX4748EBE FAQ
1.How can I place an order for MAX4748EBE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4748EBE 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 reliable?
The price and inventory of MAX4748EBE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4748EBE is usually 5 days.
3.What payment methods are accepted for MAX4748EBE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4748EBE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4748EBE?
MAX4748EBE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4748EBE 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?
For technical support, including MAX4748EBE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4748EBE requirements.
6.How does Aetrix verify that MAX4748EBE is sourced from the original manufacturer or authorized distributors?
All MAX4748EBE 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 meets industry standards.
7.What is the process for return or replacement of MAX4748EBE?
All MAX4748EBE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4748EBE, 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 part is unused and in its original packaging.
Return procedure for MAX4748EBE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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