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Analog Devices Inc./Maxim Integrated MAX4661EAE-T
- Part No.:
- MAX4661EAE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX4661EAE-T.pdf
- Description:
- IC SW SPST-NCX4 2.5OHM 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,215
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Product details
Overview
MAX4661EAE-T from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 2.5Ω max on-resistance, 0.5Ω max RON matching between channels, and 5nA max off-leakage at +85°C, enabling low-distortion switching in data acquisition and test equipment.
For engineers reviewing the MAX4661EAE-T datasheet, MAX4661EAE-T pinout, MAX4661EAE-T application, or MAX4661EAE-T equivalent, this device is selected for high-accuracy analog multiplexing where consistent on-resistance flatness (0.5Ω max), TTL/CMOS-compatible control, and dual ±4.5V to ±20V or single +4.5V to +36V operation are required.
Technical Context
The MAX4661EAE-T implements CMOS transmission-gate architecture with independent logic-level control inputs (IN1–IN4) referenced to VL, enabling compatibility across its full analog supply range. Each NC switch connects COM_ to NC_ when IN_ = 0V and disconnects when IN_ = logic high, with guaranteed break-before-make excluded (only MAX4663 provides it).
Its analog path supports ±10V signal swing with <0.7Ω RON flatness over that range, while leakage performance (ICOM_(OFF) ≤ 0.5nA typ, INC_ ≤ 0.01nA typ at +25°C) ensures minimal error in high-impedance sampling nodes. The separate VL pin decouples logic threshold from analog rail voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal signal attenuation and gain error in precision amplifier or ADC front-end paths |
| RON Matching | 0.5Ω max - enables accurate channel-to-channel ratio matching in differential or multi-path signal conditioning |
| RON Flatness | 0.5Ω max over ±10V - maintains consistent gain and THD across full analog input range |
| Off-Leakage Current | 5nA max at +85°C - preserves accuracy in high-Z sample-and-hold or sensor interface circuits |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports industrial, avionics, and wide-range test equipment rails |
| Logic Compatibility | TTL/CMOS inputs with VL pin - allows direct interfacing to 3.3V or 5V microcontrollers without level shifters |
| ESD Protection | >2kV per Method 3015.7 - enhances robustness in handling-sensitive lab and field-deployed systems |
Pinout & Package
MAX4661EAE-T is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, measuring 5.0mm × 6.2mm, suitable for space-constrained PCB layouts in automated test and instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Logic control inputs | Active-low enables NC closure; referenced to VL, not V+ or GND - ensures reliable switching across supply extremes |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Signal entry points; each routes to corresponding NC pin when associated IN_ = 0V |
| NC1–NC4 (Pins 3, 6, 11, 14) | Normally closed analog outputs | Connected to COM_ by default; open only when IN_ driven high - ideal for fail-safe signal paths |
| V+ (Pin 13) | Positive analog supply | Bias for P-channel MOSFETs; must be powered before V− and logic to prevent latch-up |
| V− (Pin 4) | Negative analog supply | Bias for N-channel MOSFETs; tied to GND for single-supply operation (0V to +V+) |
| VL (Pin 12) | Logic supply reference | Sets input threshold; may be tied to +3.3V or +5V independently of analog rails |
| GND (Pin 5) | Digital/analog ground | Common return for logic and substrate; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports ±10V differential signals with no clipping - essential for full-scale sensor or DAC output routing |
| Guaranteed RON match (0.5Ω max) | Enables precise ratiometric measurements across multiple switched channels without calibration |
| Low charge injection (20pC typ) | Minimizes voltage glitch in sample-and-hold circuits, reducing settling time and aperture error |
| High off-isolation (−56dB typ at 1MHz) | Prevents crosstalk between active and inactive channels in dense multiplexer designs |
| Break-before-make excluded | Ensures continuous NC path during control transitions - critical for safety-critical or power-fail holdover applications |
Applications
| Reed Relay Replacement | ADC Input Multiplexing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test equipment where cycle life, speed, and size are limiting factors. IC Role / Device Role / Timing Role: Quad NC analog switch providing fail-closed signal continuity until commanded open by controller. Use Value: Eliminates relay bounce, extends lifetime beyond 100M cycles, and reduces board area by >70% versus equivalent relay modules. |
Use Scenario: Routing multiple sensor outputs to a single high-resolution SAR ADC in industrial process monitoring. IC Role / Device Role / Timing Role: Low-RON, matched analog switch ensuring uniform gain and offset across all input channels. Use Value: Maintains 16-bit linearity (INL/DNL < ±1 LSB) by minimizing channel-dependent on-resistance variation. |
| Avionics Signal Conditioning | Audio-Signal Routing |
|
Use Scenario: Switching flight-critical analog telemetry signals (e.g., pitot-static, temperature) in certified airborne electronics. IC Role / Device Role / Timing Role: Fail-safe NC switch preserving signal path integrity during power loss or control fault. Use Value: Meets DO-160 Section 22 surge immunity and −40°C to +85°C extended temperature operation without derating. |
Use Scenario: Selecting between microphone preamp outputs or line-level sources in professional audio mixing consoles. IC Role / Device Role / Timing Role: Low-distortion analog switch with rail-to-rail capability handling ±5V audio peaks without clipping. Use Value: Achieves THD+N < −100dB at 1kHz due to flat RON and sub-5nA leakage, preserving dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4662EAE-T | Four normally open (NO) configuration instead of NC; identical RON, leakage, and supply specs | Suitable where default-open behavior is required (e.g., safety interlocks, power gating) | Select MAX4662EAE-T when fail-open operation is mandated; pinout and footprint are identical |
| ADG1414BRUZ | 4-channel NO switch with 1.8Ω max RON, but only single-supply (+5V to +36V); no dual-supply support | Limited to unipolar signal routing; lacks ±20V dual-rail capability needed for bipolar instrumentation | Choose ADG1414BRUZ only for cost-sensitive, single-supply-only designs where 0.7Ω lower RON justifies reduced flexibility |
Compared with MAX4661EAE-T, MAX4662EAE-T offers identical performance in a complementary fail-state configuration, while ADG1414BRUZ trades dual-supply versatility for marginally lower on-resistance in strictly unipolar systems.
Availability
MAX4661EAE-T is available at Aetrix Electronics and suitable for automated test equipment, avionics signal conditioning, and high-accuracy data acquisition systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX4661EAE-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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and automotive markets.
The MAX4661EAE-T belongs to Maxim's precision analog switch family, engineered for low-distortion, rail-to-rail signal routing in mission-critical instrumentation and test systems where reliability and parameter consistency are non-negotiable.
FAQ
What is the maximum allowable voltage difference between V+ and V− for MAX4661EAE-T?
The absolute maximum rating specifies V+ to V− must not exceed +44V. This limit ensures safe operation of internal MOSFET structures and prevents oxide breakdown. For reliable long-term use, design margins should keep the differential within ±40V, especially at elevated temperatures. The MAX4661EAE-T datasheet confirms this rating applies across the full −40°C to +85°C operating range.
Does MAX4661EAE-T support true rail-to-rail analog signal switching?
Yes, MAX4661EAE-T supports rail-to-rail analog signal handling: signals from V− to V+ pass through the switch with no degradation, verified across ±10V for dual supplies and 0V to +10V for single supplies. This is achieved via complementary CMOS topology and confirmed in the Electrical Characteristics table under "Input Voltage Range" and Figure 1–4 typical curves.
Can MAX4661EAE-T be used with a 3.3V logic supply on the VL pin while operating from ±15V analog supplies?
Yes, MAX4661EAE-T explicitly supports independent VL biasing: VL may be set to 3.3V or 5V regardless of analog supply levels. The datasheet states VL range is (GND − 0.3V) to (V+ + 0.3V), and logic thresholds (VIN_H = 2.4V, VIN_L = 0.8V) remain valid. This decoupling enables direct interfacing with modern low-voltage microcontrollers.
Is there guaranteed break-before-make timing in MAX4661EAE-T?
No, MAX4661EAE-T does not feature guaranteed break-before-make switching. That function is exclusive to the MAX4663 variant (as stated in the General Description and Pin Configurations). MAX4661EAE-T implements simple NC switching: COM_ connects directly to NC_ when IN_ = 0V, with no intentional dead-time insertion between channel transitions.
What is the thermal performance of MAX4661EAE-T in the 16-pin SSOP package?
In the 16-pin SSOP package, MAX4661EAE-T has a thermal resistance θJA of 140°C/W and a maximum power dissipation of 571mW at +70°C ambient (derated by 7.1mW/°C above). At full 85°C operation, usable power drops to ~450mW. These values are specified in the Absolute Maximum Ratings table and validated per JEDEC JESD51-2 standards.
MAX4661EAE-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):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 275ns, 175ns
- -3db Bandwidth:
- -
- Charge Injection:
- 300pC
- Channel Capacitance (CS(off), CD(off)):
- 55pF, 55pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -59dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
MAX4661EAE-T FAQ
1.How can I place an order for MAX4661EAE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4661EAE-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 MAX4661EAE-T reliable?
The price and inventory of MAX4661EAE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4661EAE-T is usually 5 days.
3.What payment methods are accepted for MAX4661EAE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4661EAE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4661EAE-T?
MAX4661EAE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4661EAE-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 MAX4661EAE-T?
For technical support, including MAX4661EAE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4661EAE-T requirements.
6.How does Aetrix verify that MAX4661EAE-T is sourced from the original manufacturer or authorized distributors?
All MAX4661EAE-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 MAX4661EAE-T meets industry standards.
7.What is the process for return or replacement of MAX4661EAE-T?
All MAX4661EAE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4661EAE-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 MAX4661EAE-T part is unused and in its original packaging.
Return procedure for MAX4661EAE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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