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Analog Devices Inc./Maxim Integrated MAX4668ESE
- Part No.:
- MAX4668ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4668ESE.pdf
- Description:
- IC SW SPST-NOX2 2.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,058
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Product details
Overview
MAX4668ESE from Maxim Integrated is a dual, normally open (NO), single-pole single-throw (SPST) CMOS analog switch with 2.5Ω maximum on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling up to ±20V. It delivers matched on-resistance (≤0.4Ω between channels), flat on-resistance (≤0.5Ω over full signal range), and <5nA off-leakage at +85°C - ideal for precision reed relay replacement in automated test equipment.
For engineers reviewing the MAX4668ESE datasheet, MAX4668ESE pinout, MAX4668ESE application, or MAX4668ESE equivalent, key selection criteria include guaranteed NO configuration, -40°C to +85°C extended temperature rating, 16-pin narrow SOIC package, low charge injection (50pC typical), and TTL/CMOS-compatible logic thresholds (0.8V/2.4V) enabling direct interface with microcontrollers and FPGAs.
Technical Context
The MAX4668ESE implements two independent SPST switches with complementary control logic: IN1 and IN2 directly enable NO1 and NO2, respectively, with no internal break-before-make timing. Its CMOS architecture uses matched P- and N-channel MOSFETs per switch to achieve low RON, minimal RON flatness, and symmetric conduction across bipolar analog signals.
Supply flexibility includes dual ±4.5V to ±20V operation (supporting ±15V industrial rails) or single +4.5V to +36V mode (enabling +12V or +24V systems). Logic inputs reference VL (typically +5V), decoupling digital control from analog supply domains while maintaining guaranteed switching thresholds across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max at ±15V dual supply - ensures minimal voltage drop and signal attenuation in precision analog paths. |
| RON Match Between Channels | 0.4Ω max - enables accurate differential or ratiometric measurements without calibration offset. |
| RON Flatness | 0.5Ω max over ±10V signal range - maintains consistent gain and linearity across full analog swing. |
| Off-Leakage Current | 0.5nA max at +85°C - preserves high-impedance node integrity in sensor front-ends and sample-hold circuits. |
| Turn-On/Turn-Off Time | 400ns / 300ns typical at VCOM = ±10V - supports >1MHz switching in multiplexed data acquisition systems. |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - accommodates legacy ±15V instrumentation and modern +24V industrial PLC I/O. |
| Logic Thresholds | VIN_H = 2.4V, VIN_L = 0.8V - guarantees reliable TTL/CMOS compatibility without level-shifting in mixed-voltage systems. |
Pinout & Package
MAX4668ESE is housed in a 16-pin narrow SOIC (SO/DIP) package, 3.9mm wide, with standard 1.27mm pitch and gull-wing leads. Thermal performance supports 696mW continuous power dissipation at +70°C ambient (derated 8.7mW/°C above).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8, 10, 15 | No Connect (N.C.) | Not internally bonded; connect to GND for improved off-isolation and EMI suppression. |
| 2, 7 | IN1, IN2 | Digital control inputs for NO1 and NO2 switches; active-high, TTL/CMOS compatible. |
| 4 | V− | Negative analog supply; tie to GND for single-supply operation (+4.5V to +36V). |
| 5 | GND | Analog and digital ground reference; separate grounding from noisy digital planes improves crosstalk. |
| 9, 16 | NO1, NO2 | Normally open analog switch terminals; conduct to COM when respective INx = high. |
| 11, 14 | COM1, COM2 | Common analog terminals; handle rail-to-rail signals from V− to V+ (±20V max). |
| 12 | VL | Logic supply input; typically +5V, decouples digital interface from analog supply domains. |
| 13 | V+ | Positive analog supply; supports up to +36V in single-supply mode or +20V in dual-supply mode. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from V− to V+, enabling full utilization of ±15V op-amp rails or +24V industrial sensors without clipping. |
| Guaranteed RON match and flatness | ≤0.4Ω channel-to-channel mismatch and ≤0.5Ω variation over ±10V range ensure stable gain in differential amplifier feedback networks. |
| Low charge injection (50pC typ) | Minimizes voltage glitch on sampled capacitors - critical for 12-bit+ SAR ADC front-end multiplexing. |
| ESD protection >2kV (HBM) | Eliminates need for external transient suppressors in board-level ESD-prone environments like test jigs and avionics racks. |
| Extended temperature range | -40°C to +85°C operation validated across full electrical specs - suitable for under-hood automotive diagnostics and outdoor telecom gear. |
Applications
| Reed Relay Replacement | Automated Test Equipment (ATE) |
|---|---|
|
Use Scenario: Replacing electromechanical relays in high-cycle-count fixture wiring matrices where contact wear and bounce cause calibration drift. IC Role / Device Role / Timing Role: Dual SPST NO switch routing analog stimulus/sense paths between DUT and measurement instruments. Use Value: 100× longer lifetime (>109 cycles vs. 107 for relays), sub-microsecond switching, and zero contact bounce eliminate test time penalties and false failures. |
Use Scenario: Multiplexing multiple sensor inputs into a shared high-precision ADC in functional test systems. IC Role / Device Role / Timing Role: Low-RON, matched analog switch enabling sequential sampling of thermocouples, RTDs, and strain gauges. Use Value: ≤0.5Ω RON flatness prevents gain error across temperature, while <5nA leakage avoids bias current errors in high-Z transducer interfaces. |
| Audio-Signal Routing | Avionics Signal Conditioning |
|
Use Scenario: Selecting between microphone preamp outputs or line-level sources in professional audio mixers with silent switching. IC Role / Device Role / Timing Role: Rail-to-rail SPST switch isolating analog audio paths while preserving DC-coupled signal integrity. Use Value: 2.5Ω RON minimizes insertion loss (<0.01dB at 600Ω), and low charge injection prevents audible pop/click during channel changes. |
Use Scenario: Routing ARINC 429 or discrete discrete status signals in flight control interface units requiring fail-safe isolation. IC Role / Device Role / Timing Role: Dual NO switch providing galvanic separation between redundant sensor channels and central processing units. Use Value: -60dB off-isolation at 1MHz blocks cross-channel coupling in safety-critical bus monitoring, while ±20V rating handles aircraft 28VDC transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single-supply only (+5V to +30V); 2.1Ω RON; 16-TSSOP package; higher 100pC charge injection. | Better for cost-sensitive +5V/24V systems but lacks dual-supply flexibility and exhibits larger switching glitch. | Select when single-rail simplicity outweighs need for ±15V compatibility and ultra-low charge injection. |
| TS5A3157DCKR | Lower voltage range (1.65V to 5.5V); 0.75Ω RON; SC70-6 package; 30pC charge injection; only one switch. | Targeted at portable battery-powered signal routing, not industrial or test equipment with wide supply ranges. | Choose for space-constrained, low-voltage consumer electronics - not suitable for MAX4668ESE's ±20V or extended temp use cases. |
Compared with ADG1419BRUZ and TS5A3157DCKR, the MAX4668ESE uniquely supports dual ±15V supplies, guarantees -40°C to +85°C operation with full spec compliance, and provides dual NO switches in a single 16-pin SOIC - making it the only option among the three qualified for high-reliability ATE and avionics signal routing.
Availability
MAX4668ESE is available at Aetrix Electronics and suitable for automated test equipment, avionics signal conditioning, reed relay replacement, and audio-signal routing requiring stable component supply across extended temperature and wide supply voltage ranges.
Supply support for MAX4668ESE 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 industrial, communications, and computing applications.
The MAX4667/MAX4668/MAX4669 family was engineered specifically for high-fidelity analog signal routing in test and measurement systems, emphasizing low distortion, rail-to-rail operation, and mechanical relay replacement reliability.
FAQ
What is the maximum allowable supply voltage for MAX4668ESE in dual-supply mode?
The MAX4668ESE supports dual-supply operation from ±4.5V to ±20V. Absolute maximum ratings specify V+ to V− must not exceed +44V, and each supply must stay within -0.3V to +44V relative to GND. For reliable long-term operation, do not exceed ±20V - verified across the full -40°C to +85°C temperature range in the official datasheet.
Does MAX4668ESE support rail-to-rail analog signal switching?
Yes, the MAX4668ESE supports true rail-to-rail analog signal handling: signals at COM1/COM2 and NO1/NO2 can swing from V− to V+, including ±20V in dual-supply mode or 0V to +36V in single-supply mode. This capability is guaranteed by design and tested per the datasheet's "Input Voltage Range" specification (VCOM_, VNO_, VNC_ = V− to V+).
What is the guaranteed on-resistance match between the two switches in MAX4668ESE?
The MAX4668ESE guarantees ∆RON (RON difference between Channel 1 and Channel 2) of ≤0.4Ω maximum at TA = TMIN to TMAX, as specified in the "Electrical Characteristics-Dual Supplies" table. This parameter is 100% tested and applies across the full operating temperature range (-40°C to +85°C) and signal range (±10V).
Can MAX4668ESE be used with a single +12V supply?
Yes, the MAX4668ESE operates with a single +12V supply: tie V− to GND, apply +12V to V+, and use +5V on VL. In this configuration, RON is 4Ω max (vs. 2.5Ω at ±15V), and analog signals swing from 0V to +12V. All logic thresholds, leakage, and timing specs remain valid per the "Electrical Characteristics-Single Supply" section.
Is MAX4668ESE pin-compatible with MAX4667ESE or MAX4669ESE?
No - although all three share the same 16-pin narrow SOIC package and pinout numbering, their internal switch configurations differ: MAX4668ESE has two NO switches, MAX4667ESE has two NC switches, and MAX4669ESE has one NO + one NC with break-before-make. Swapping them without circuit review risks incorrect signal routing or unintended short circuits.
MAX4668ESE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- 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:
- 450pC
- Channel Capacitance (CS(off), CD(off)):
- 65pF, 65pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -66dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4668ESE FAQ
1.How can I place an order for MAX4668ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4668ESE 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 MAX4668ESE reliable?
The price and inventory of MAX4668ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4668ESE is usually 5 days.
3.What payment methods are accepted for MAX4668ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4668ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4668ESE?
MAX4668ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4668ESE 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 MAX4668ESE?
For technical support, including MAX4668ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4668ESE requirements.
6.How does Aetrix verify that MAX4668ESE is sourced from the original manufacturer or authorized distributors?
All MAX4668ESE 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 MAX4668ESE meets industry standards.
7.What is the process for return or replacement of MAX4668ESE?
All MAX4668ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4668ESE, 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 MAX4668ESE part is unused and in its original packaging.
Return procedure for MAX4668ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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