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Analog Devices Inc./Maxim Integrated MAX336CAI
- Part No.:
- MAX336CAI
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX336CAI.pdf
- Description:
- IC MUX 16:1 400OHM 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,651
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Product details
Overview
MAX336CAI from Maxim Integrated is a 16-channel, single-ended CMOS analog multiplexer designed to route one of 16 bidirectional analog inputs (NO1–NO16) to a common output (COM) under 4-bit binary address control (A0–A3). It features 400Ω max on-resistance, <20pA NO-off leakage at +25°C, and 3.5pC typical charge injection - enabling precision signal routing in data acquisition systems operating from ±4.5V to ±20V or +4.5V to +30V supplies.
For engineers reviewing the MAX336CAI datasheet, MAX336CAI pinout, MAX336CAI application, or MAX336CAI equivalent, key selection considerations include rail-to-rail bidirectional signal handling, TTL/CMOS-compatible enable and address inputs, guaranteed low leakage across temperature, ESD protection >2000V, and pin-compatibility with DG506 for drop-in upgrades in test equipment and precision instrumentation.
Technical Context
The MAX336CAI implements a monolithic BiCMOS decoder-driver architecture that decodes A0–A3 and EN to select exactly one of 16 NMOS/PMOS transmission-gate switch paths between NOx terminals and COM. All switches conduct equally well in both directions, supporting true bidirectional analog signal flow up to ±15V with rail-to-rail capability when powered from dual supplies.
Its control logic accepts TTL/CMOS levels (0.8V to 2.4V) across full supply ranges (±4.5V to ±18V or +4.5V to +30V), and internal clamping diodes protect against overvoltage transients. Charge injection is minimized via matched transistor design, and off-isolation exceeds 82dB at 100kHz - critical for high-accuracy multiplexed ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 16-channel single-ended mux: selects one of 16 analog inputs to shared COM output |
| On-Resistance (max) | 400Ω at TA = +25°C, VCOM = ±10V - ensures minimal gain error and voltage drop in precision sensor interfaces |
| NO-Off Leakage (max) | 0.02nA at +25°C - preserves signal integrity in high-impedance measurement circuits like pH or thermocouple amplifiers |
| Charge Injection (typ) | 3.5pC - limits voltage glitch on sampled-hold capacitors, reducing settling time in multiplexed data acquisition |
| Supply Range | +4.5V to +30V single supply or ±4.5V to ±20V dual supply - supports industrial ±15V and battery-powered +5V/+12V systems |
| Transition Time (max) | 500ns - enables sampling rates up to ~1MHz in time-multiplexed signal chains |
| ESD Protection | >2000V per Method 3015.7 - enhances robustness during board handling and system integration |
Pinout & Package
MAX336CAI is housed in a 28-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply voltage input | Accepts +4.5V to +30V (single) or +4.5V to +20V (dual); powers internal logic and switch PMOS devices |
| V- | Negative supply voltage input | Accepts -4.5V to -20V (dual); connects to GND for single-supply operation; powers switch NMOS devices |
| GND | Logic ground reference | Reference for TTL/CMOS input thresholds and internal biasing; must be low-impedance for noise immunity |
| COM | Common analog output terminal | Bidirectional node connected to selected NOx channel; supports rail-to-rail signal swing between V- and V+ |
| NO1–NO16 | Analog input/output terminals | 16 bidirectional, interchangeable analog ports; each electrically identical and rated for ±15V signal range |
| A0–A3 | 4-bit binary address inputs | Selects active channel (0–15); logic thresholds 0.8V (low) / 2.4V (high) across full temperature and supply range |
| EN | Enable input | Active-high; disables all switches when low (high-impedance state); TTL/CMOS compatible |
| N.C. | No internal connection | Pins 2, 3, 13 - unused; must remain unconnected to avoid parasitic coupling or mechanical stress |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail bidirectional switching | Supports analog signals from V- to V+ without clipping - essential for ±10V industrial sensor interfaces and audio routing |
| <10Ω on-resistance matching | Ensures consistent gain and offset across channels in multi-sensor calibration systems |
| <500ns transition time | Enables fast channel switching in real-time control loops and automated test equipment scan sequences |
| Plug-in upgrade for DG506 | Identical pinout and function allows direct replacement without PCB redesign in legacy test and medical equipment |
| TTL/CMOS logic compatibility | Eliminates level-shifting circuitry when interfacing with microcontrollers, FPGAs, or CPLDs |
Applications
| Precision Data Acquisition | Precision Signal Routing |
|---|---|
Use Scenario: Multiplexing 16 thermocouple or strain gauge outputs into a single 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Analog switch matrix providing low-leakage, low-charge-injection path selection before ADC sampling. Use Value: Sub-0.02nA off-leakage prevents DC offset drift; 3.5pC charge injection minimizes hold capacitor disturbance, preserving measurement accuracy. |
Use Scenario: Dynamically reconfiguring signal paths in a programmable gain instrumentation amplifier (PGIA) front-end. IC Role / Device Role / Timing Role: Bidirectional analog routing element enabling software-defined gain and filter topology changes. Use Value: 400Ω max on-resistance and <10Ω matching ensure consistent gain scaling; rail-to-rail operation supports ±10V sensor ranges. |
| Test Equipment | Medical Instrumentation |
Use Scenario: Channel selection in automated test equipment (ATE) for DUT stimulus/response routing across 16 sensor nodes. IC Role / Device Role / Timing Role: High-reliability analog multiplexer with ESD-hardened I/O for production floor environments. Use Value: >2000V ESD rating protects against operator discharge; 500ns switching enables rapid test sequence execution. |
Use Scenario: Selecting among 16 EEG or ECG electrode inputs in a portable patient monitor with low-power constraints. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch enabling battery-operated multichannel bio-signal acquisition. Use Value: 1µA max supply current at +25°C extends battery life; low leakage avoids baseline drift in high-impedance biopotential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX336CWI+ | Same electrical specs and pinout, but in 28-pin Wide SO package (vs. SSOP); 1.00W power dissipation rating vs. 727.3mW for SSOP | Preferred for through-hole prototyping or higher thermal mass requirements; less dense layout than SSOP | Select MAX336CWI+ when board space allows larger footprint and thermal management favors SO package |
| DG506ACJ | Industry-standard 16-channel mux; higher 600Ω max on-resistance, 100pC charge injection, no guaranteed ESD rating | Suitable for non-critical, cost-sensitive applications where leakage & speed are secondary | Choose DG506ACJ only if legacy compatibility is mandatory and MAX336CAI's low-leakage/low-charge advantages are unnecessary |
Compared with MAX336CWI+, the MAX336CAI offers superior board-level density and lower thermal resistance per unit area, while retaining identical functionality; versus DG506ACJ, it delivers measurable improvements in signal fidelity, ESD robustness, and switching precision - justifying upgrade in medical and test-grade designs.
Availability
MAX336CAI is available at Aetrix Electronics and suitable for precision data acquisition, test equipment, and medical instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX336CAI 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, medical, and communications applications.
The MAX336 product line was engineered specifically for low-leakage, low-charge-injection analog multiplexing in precision measurement systems - addressing limitations of legacy DG-series muxes in high-resolution data acquisition and automated test environments.
FAQ
What is the maximum analog signal voltage range supported by the MAX336CAI?
The MAX336CAI supports analog signals from V− to V+, delivering true rail-to-rail operation. With ±15V dual supplies, this yields a ±15V (−15V to +15V) signal range. In single-supply mode (+12V, V− = GND), the range is 0V to +12V. Absolute maximum ratings limit V+ to 44V above V−, but functional analog range is constrained by supply rails.
Is the MAX336CAI pin-compatible with the DG506?
Yes, the MAX336CAI is explicitly designed as a pin-compatible upgrade for the DG506. Pin assignments for V+, V−, GND, COM, NO1–NO16, A0–A3, and EN match identically. No PCB layout changes are required, making it a direct drop-in replacement that improves on-leakage, charge injection, and ESD performance without hardware modification.
What is the typical charge injection value for the MAX336CAI, and why does it matter?
The MAX336CAI has a typical charge injection of 3.5pC, measured with CL = 100pF and RS = 0Ω. This parameter directly impacts the voltage glitch induced on sampling capacitors in data acquisition systems. Lower charge injection reduces settling time and residual error after channel switching - critical for maintaining accuracy in high-resolution (≥18-bit) ADC applications using the MAX336CAI.
Can the MAX336CAI operate from a single +5V supply?
Yes, the MAX336CAI operates from a single +4.5V to +30V supply. At +5V, analog signal range is 0V to +5V, and on-resistance increases to ~700Ω (max), while transition time rises to ~600ns. Logic inputs remain TTL/CMOS-compatible. For optimal performance, use ≥+12V single supply or ±15V dual supply to maintain low RON and fast switching.
Does the MAX336CAI support bidirectional signal flow?
Yes, the MAX336CAI supports fully bidirectional analog signal flow between any NOx pin and the COM pin. Its CMOS transmission-gate architecture provides symmetrical conduction characteristics - meaning signal direction (NO→COM or COM→NO) has no effect on on-resistance, leakage, or bandwidth. This enables flexible use as both multiplexer and demultiplexer in the same design.
MAX336CAI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 16:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 400Ohm
- Channel-to-Channel Matching (ΔRon):
- 5Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 20V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 500ns, 500ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3.5pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 20pA
- Crosstalk:
- -86dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
MAX336CAI FAQ
1.How can I place an order for MAX336CAI through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX336CAI 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 MAX336CAI reliable?
The price and inventory of MAX336CAI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX336CAI is usually 5 days.
3.What payment methods are accepted for MAX336CAI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX336CAI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX336CAI?
MAX336CAI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX336CAI 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 MAX336CAI?
For technical support, including MAX336CAI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX336CAI requirements.
6.How does Aetrix verify that MAX336CAI is sourced from the original manufacturer or authorized distributors?
All MAX336CAI 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 MAX336CAI meets industry standards.
7.What is the process for return or replacement of MAX336CAI?
All MAX336CAI units undergo pre-shipment inspection (PSI). If there is an issue with MAX336CAI, 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 MAX336CAI part is unused and in its original packaging.
Return procedure for MAX336CAI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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