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Analog Devices Inc./Maxim Integrated MAX394CPP
- Part No.:
- MAX394CPP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX394CPP.pdf
- Description:
- IC SWITCH SPDT X 4 35OHM 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,403
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Product details
Overview
MAX394CPP from Analog Devices is a precision quad SPDT analog switch optimized for low-voltage, rail-to-rail signal routing in portable and test equipment. It operates from ±2.7V to ±8V bipolar or +2.7V to +15V single supply, delivers <35Ω max on-resistance with <2Ω channel matching, and features 10pC max charge injection and <75ns turn-off time. It serves as a signal path selector in audio routing and heads-up displays.
For engineers reviewing the MAX394CPP datasheet, MAX394CPP pinout, MAX394CPP application, or MAX394CPP equivalent, key selection criteria include guaranteed on-resistance flatness (Δ4Ω max), break-before-make timing (10ns typ), ESD robustness (>2000V), and TTL/CMOS-compatible logic inputs across supply ranges.
Technical Context
The MAX394CPP integrates four independent CMOS SPDT switches fabricated using low-voltage silicon-gate process. Each switch supports rail-to-rail analog signal handling between V+ and V−, with logic inputs tolerant of +0.8V to +2.4V (≤+8V supplies) or +0.8V to +4V (>+8V supplies).
Its architecture guarantees matched on-resistance (<2Ω) and flat on-resistance (Δ4Ω max) over full signal range, enabled by design improvements that also ensure <10pC charge injection and <2.5nA off-channel leakage at +85°C - critical for precision sampling and low-distortion audio switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | <35Ω max (ensures minimal signal attenuation and voltage drop in precision analog paths) |
| On-Resistance Match | <2Ω between channels (enables accurate differential or multi-path signal balancing) |
| Charge Injection | <10pC (reduces glitch-induced errors in sample-and-hold and multiplexed ADC front-ends) |
| Break-Before-Make Delay | 10ns typical (prevents momentary shorting during channel switching in sensitive signal chains) |
| Supply Range | ±2.7V to ±8V or +2.7V to +15V (supports both dual-rail instrumentation and single-supply portable designs) |
| ESD Rating | >2000V per Method 3015.7 (enhances reliability in handling and board-level integration) |
| Quiescent Current | <1μA (enables battery-powered operation without significant standby drain) |
Pinout & Package
MAX394CPP is housed in a 20-pin plastic DIP package (P20-4), with through-hole mounting and 0.300" wide body. Pin 15 is not internally connected (N.C.).
| 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 corresponding IN = high |
| 3, 8, 13, 18 | COM1–COM4 | Common analog signal poles; handle rail-to-rail signals from V− to V+ |
| 4, 7, 14, 17 | NC1–NC4 | Normally closed switch terminals; connect to COM when corresponding IN = low |
| 5 | V− | Negative power supply rail; must be applied before analog/logic signals in sequencing |
| 6 | GND | Ground reference; substrate tied to V+ per chip topography |
| 15 | N.C. | No internal connection; left floating per datasheet |
| 16 | V+ | Positive power supply rail; absolute max V+ to V− = 17V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping or damage - essential for full-scale sensor or audio signal routing |
| Guaranteed on-resistance flatness | Δ4Ω max over full analog range ensures consistent gain/attenuation across signal swing in precision instrumentation |
| Low charge injection | <10pC minimizes transient glitches at COM node - critical for low-error multiplexing into high-impedance ADC inputs |
| Bipolar and single-supply operation | Operates identically across ±2.7V–±8V and +2.7V–+15V rails - simplifies design reuse across test gear and portable platforms |
| TTL/CMOS logic compatibility | Input thresholds defined over temperature and supply - eliminates need for level-shifting in mixed-voltage systems |
Applications
| Test Equipment | Communications Systems |
|---|---|
Use Scenario: Automated test fixture routing multiple sensor outputs to shared DMM or oscilloscope input. IC Role / Device Role / Timing Role: Quad SPDT switch selecting one of four analog sources per channel under microcontroller control. Use Value: <35Ω on-resistance and <2Ω channel match preserve measurement accuracy; <10pC charge injection prevents settling errors in high-Z front-ends. | Use Scenario: Signal path selection in modular baseband processing unit with multiple RF front-end options. IC Role / Device Role / Timing Role: Low-glitch analog switch enabling dynamic reconfiguration of filter banks or amplifier chains. Use Value: Break-before-make (10ns typ) avoids cross-talk during reconfiguration; rail-to-rail support handles full IF signal swing. |
| Heads-Up Displays | Audio Signal Routing |
Use Scenario: Multiplexing video sync, brightness, and overlay data lines in automotive HUD controller. IC Role / Device Role / Timing Role: Precision analog switch isolating timing-critical video signals from digital control noise. Use Value: <2.5nA off-leakage at +85°C prevents ghosting or drift in high-impedance display driver nodes. | Use Scenario: Channel-selectable audio path in portable mixer with line/mic inputs and headphone/line outputs. IC Role / Device Role / Timing Role: Low-distortion analog switch routing unbalanced line-level signals without DC blocking caps. Use Value: <35Ω on-resistance and flat RON maintain frequency response flatness; <1μA quiescent current extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX333CPP | Pin-compatible but higher on-resistance (100Ω typ), wider temp range (−40°C to +85°C), no guaranteed charge injection spec | Suitable for non-critical routing where speed and precision are secondary to cost | Select MAX333CPP only if lower performance tolerance and extended temperature are acceptable trade-offs |
| ADG1414BRUZ | Quad SPDT, 1.5Ω max on-resistance, 12V max supply, requires external level shifters for 3.3V logic control | Better for high-precision, low-noise industrial DAQ where ultra-low RON and leakage (<1pA) are mandatory | Choose ADG1414BRUZ when sub-2Ω matching and picoampere leakage outweigh footprint and logic interface complexity |
Compared with MAX394CPP, MAX333CPP offers broader temperature rating but sacrifices precision specs; ADG1414BRUZ delivers superior analog performance but demands additional logic interface design effort and lacks native 3.3V/5V logic compatibility.
Availability
MAX394CPP is available at Aetrix Electronics and suitable for test equipment, communications systems, heads-up displays, and portable instruments requiring stable component supply across commercial temperature range (0°C to +70°C).
Supply support for MAX394CPP 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 precision instrumentation, industrial, and communications markets.
The MAX394 product line delivers low-voltage, high-fidelity analog switching solutions targeting portable, test, and display applications where rail-to-rail signal integrity and low power are essential.
FAQ
What is the maximum supply voltage rating for MAX394CPP?
The MAX394CPP has an absolute maximum V+ to V− rating of 17V. Its operational bipolar supply range is ±2.7V to ±8V, and single-supply range is +2.7V to +15V. Exceeding 17V differential may cause permanent damage, and proper power sequencing (V+ before V− before signals) is required to avoid latch-up.
Does MAX394CPP support rail-to-rail analog signal switching?
Yes, the MAX394CPP supports rail-to-rail analog signal handling: switched signals on COM, NO, and NC pins can range from V− to V+ without damage or performance degradation. This capability is explicitly guaranteed in the datasheet and enables full-scale use in sensor interfaces and audio circuits without external level-shifting.
What is the guaranteed on-resistance matching between channels for MAX394CPP?
The MAX394CPP guarantees on-resistance matching of less than 2Ω between any two channels at +25°C, and less than 4Ω over the full operating temperature range (0°C to +70°C). This specification is measured under defined conditions (V+ = 5V, V− = −5V, ICOM = 10mA) and ensures predictable signal path consistency in multi-channel routing.
Can MAX394CPP operate from a single 3.3V supply?
Yes, the MAX394CPP operates from a single +2.7V to +15V supply, including +3.3V. At +3.3V, typical on-resistance rises to 75–185Ω (vs. 20–35Ω at ±5V), and dynamic parameters such as tON increase to 400ns. Logic inputs remain compatible with 3.3V CMOS levels, making it viable for low-voltage portable designs where higher RON is acceptable.
Is MAX394CPP pin-compatible with other variants in the MAX394 family?
Yes, all MAX394 variants-including MAX394CPP, MAX394CWP, and MAX394CAP+-share identical 20-pin pinouts and logic functionality. The MAX394CPP (20-pin plastic DIP) is pin-compatible with MAX333 and MAX333A, enabling drop-in replacement in legacy designs where package form factor allows.
MAX394CPP 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-PDIP
MAX394CPP FAQ
1.How can I place an order for MAX394CPP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX394CPP 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 MAX394CPP reliable?
The price and inventory of MAX394CPP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX394CPP is usually 5 days.
3.What payment methods are accepted for MAX394CPP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX394CPP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX394CPP?
MAX394CPP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX394CPP 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 MAX394CPP?
For technical support, including MAX394CPP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX394CPP requirements.
6.How does Aetrix verify that MAX394CPP is sourced from the original manufacturer or authorized distributors?
All MAX394CPP 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 MAX394CPP meets industry standards.
7.What is the process for return or replacement of MAX394CPP?
All MAX394CPP units undergo pre-shipment inspection (PSI). If there is an issue with MAX394CPP, 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 MAX394CPP part is unused and in its original packaging.
Return procedure for MAX394CPP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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