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Analog Devices Inc./Maxim Integrated MAX394EPP+
- Part No.:
- MAX394EPP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX394EPP+.pdf
- Description:
- IC SWITCH SPDT X 4 35OHM 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,373
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Product details
Overview
The MAX394EPP+ from Analog Devices is a precision quad SPDT analog switch optimized for rail-to-rail signal routing in portable and industrial systems. It operates from ±2.7V to ±8V bipolar or +2.7V to +15V single supply, delivers <35Ω on-resistance (max), guarantees ≤2Ω channel-to-channel matching, and supports break-before-make switching with 10ns typical delay-enabling low-distortion audio routing and test equipment multiplexing.
For engineers reviewing the MAX394EPP+ datasheet, MAX394EPP+ pinout, MAX394EPP+ application, or MAX394EPP+ equivalent, key selection criteria include guaranteed on-resistance flatness (Δ4Ω max), <10pC charge injection, -40°C to +85°C extended temperature operation, and compatibility with TTL/CMOS logic across supply ranges.
Technical Context
The MAX394EPP+ integrates four independent CMOS SPDT switches fabricated using low-voltage silicon-gate process technology. Each switch features matched on-resistance (≤2Ω), flat RON over full analog signal range (Δ4Ω max), and rail-to-rail analog signal handling from V− to V+.
It implements break-before-make timing (10ns typ) with turn-on <130ns and turn-off <75ns under ±5V supplies. Logic inputs are TTL/CMOS-compatible across +0.8V to +2.4V (≤+8V supplies) or +0.8V to +4V (>+8V supplies), supporting mixed-voltage system interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2.7V to ±8V bipolar or +2.7V to +15V single supply - enables flexible power architecture in battery-powered and industrial systems |
| On-Resistance (max) | 35Ω at ±4.5V - ensures minimal signal attenuation and gain error in precision analog paths |
| On-Resistance Match | ≤2Ω between channels - critical for matched gain/phase in differential or multi-channel signal routing |
| Charge Injection | <10pC - reduces voltage glitch and settling time in sample-and-hold or multiplexed ADC front-ends |
| Off-Leakage Current | <2.5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and precision reference switching |
| Switching Speed | tON <130ns, tOFF <75ns - supports fast channel scanning in automated test equipment (ATE) |
| ESD Rating | >2000V per Method 3015.7 - enhances robustness during board handling and system integration |
Pinout & Package
MAX394EPP+ uses a 20-pin plastic DIP package (P20-4), rated for -40°C to +85°C operation. The substrate is internally connected to V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN1–IN4 | Logic-level control inputs; TTL/CMOS-compatible, referenced to GND |
| 2, 9, 12, 19 | NO1–NO4 | Normally open switch terminals; connect to COM when IN = high |
| 3, 8, 13, 18 | COM1–COM4 | Common poles; carry analog signals bidirectionally between NO and NC |
| 4, 7, 14, 17 | NC1–NC4 | Normally closed switch terminals; connect to COM when IN = low |
| 5 | V− | Negative supply rail; must be applied before analog signals in dual-supply sequencing |
| 6 | GND | Ground reference; serves as logic and analog return path |
| 15 | N.C. | No internal connection; left unconnected on PCB |
| 16 | V+ | Positive supply rail; substrate tied internally to this pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Analog signals swing fully from V− to V+ without clipping or damage - supports wide-dynamic-range instrumentation |
| Guaranteed on-resistance flatness | Δ4Ω max over full analog range - minimizes harmonic distortion in audio and video signal paths |
| Break-before-make switching | 10ns typical delay - prevents momentary short-circuit between NO and NC paths during state transitions |
| Ultra-low quiescent current | <1μA with all inputs high or low - extends battery life in portable instruments and handheld test gear |
| ESD-robust construction | >2000V HBM - reduces field failure risk in manufacturing, repair, and end-user environments |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching line-level stereo signals between multiple sources (e.g., microphone, DAC, codec) in portable audio analyzers. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing bidirectional, low-distortion signal path selection with simultaneous channel isolation. Use Value: <35Ω RON and Δ4Ω flatness preserve signal fidelity; <10pC charge injection prevents audible pop/click during switching. |
Use Scenario: Routing DUT signals to multiple measurement instruments (oscilloscope, DMM, spectrum analyzer) in automated test fixtures. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling sequential channel access with sub-130ns switching and guaranteed channel isolation. Use Value: 66dB off-isolation and 88dB crosstalk suppression ensure measurement integrity across high-frequency test signals up to 1MHz. |
| Heads-Up Display (HUD) Interface | Portable Instrument Signal Conditioning |
|
Use Scenario: Selecting between calibration references and sensor outputs in automotive HUD brightness/contrast control circuits. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance reference voltages from display driver circuitry. Use Value: <2.5nA off-leakage at +85°C maintains reference accuracy; rail-to-rail operation accommodates wide-voltage display bias rails. |
Use Scenario: Configuring gain and filter paths in handheld multimeters or portable oscilloscopes with user-selectable input ranges. IC Role / Device Role / Timing Role: Reconfigurable analog signal path element enabling programmable attenuation, filtering, and offset injection. Use Value: Pin-compatible replacement for MAX333A allows legacy design reuse; -40°C to +85°C rating supports outdoor and industrial deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX333AEPP+ | Higher on-resistance (45Ω max), wider temp range (-40°C to +85°C), same 20-pin DIP package | Lower bandwidth suitability; less ideal for high-fidelity audio but acceptable for DC/low-frequency sensor switching | Select when lower cost is prioritized over RON performance and charge injection specs |
| ADG1414BRUZ | 4-channel SPDT, 1.5Ω typical RON, 30V supply capable, 20-pin TSSOP only (no DIP) | Superior on-resistance and bandwidth, but requires PCB redesign due to different footprint and thermal profile | Choose for new designs demanding ultra-low distortion and higher voltage tolerance, accepting layout change |
Compared with MAX394EPP+, MAX333AEPP+ trades RON and charge injection for cost, while ADG1414BRUZ offers superior analog performance at the expense of package compatibility and supply voltage headroom.
Availability
MAX394EPP+ is available at Aetrix Electronics and suitable for test equipment, portable instruments, communications systems, and heads-up displays requiring stable component supply across extended temperature ranges.
Supply support for MAX394EPP+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX394EPP+ belongs to Analog Devices' precision analog switch family, engineered for low-distortion, low-leakage signal routing in portable and ruggedized instrumentation where reliability and parameter consistency are critical.
FAQ
What is the operating temperature range of the MAX394EPP+?
The MAX394EPP+ is rated for -40°C to +85°C operation, making it suitable for industrial and automotive-adjacent applications where ambient conditions exceed commercial-grade limits. This extended range is confirmed in the Ordering Information table and validated across all electrical specifications including on-resistance, leakage, and switching speed.
Is the MAX394EPP+ pin-compatible with other MAX394 variants?
Yes, the MAX394EPP+ shares identical pinout and functionality with other 20-pin MAX394 variants including MAX394CPP, MAX394CWP, and MAX394EWP. All adhere to the same Pin Configuration diagram (top view, DIP/SO/TSSOP/SSOP), with consistent IN/NO/COM/NC assignments and V+/V−/GND placement.
Does the MAX394EPP+ support single-supply operation?
Yes, the MAX394EPP+ supports single-supply operation from +2.7V to +15V. In this mode, analog signals can swing from ground (0V) to V+, and logic inputs remain compatible with TTL/CMOS levels. Performance parameters-including on-resistance (75Ω max at +3V) and leakage-are fully specified for single-supply configurations.
What is the maximum analog signal voltage the MAX394EPP+ can handle?
The MAX394EPP+ supports rail-to-rail analog signals from V− to V+. With ±5V supplies, it handles ±5V signals; with +5V single supply, it handles 0V to +5V. Absolute maximum ratings allow V+ to V− differential up to 17V, but analog signal range remains bounded by the applied supply rails.
How does the MAX394EPP+ achieve low charge injection?
The MAX394EPP+ achieves <10pC charge injection through matched transistor geometry and optimized gate drive timing in its low-voltage silicon-gate CMOS process. This is guaranteed across temperature and supply conditions, directly reducing voltage glitches in sample-and-hold circuits and improving settling behavior in multiplexed data acquisition systems.
MAX394EPP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 15V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 130ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 200pA
- Crosstalk:
- -88dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-PDIP
MAX394EPP+ FAQ
1.How can I place an order for MAX394EPP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX394EPP+ 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 MAX394EPP+ reliable?
The price and inventory of MAX394EPP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX394EPP+ is usually 5 days.
3.What payment methods are accepted for MAX394EPP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX394EPP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX394EPP+?
MAX394EPP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX394EPP+ 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 MAX394EPP+?
For technical support, including MAX394EPP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX394EPP+ requirements.
6.How does Aetrix verify that MAX394EPP+ is sourced from the original manufacturer or authorized distributors?
All MAX394EPP+ 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 MAX394EPP+ meets industry standards.
7.What is the process for return or replacement of MAX394EPP+?
All MAX394EPP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX394EPP+, 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 MAX394EPP+ part is unused and in its original packaging.
Return procedure for MAX394EPP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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