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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:4,031
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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 legacy DG506 devices in SSOP-28 packaging.
Technical Context
The MAX336CAI+ implements a monolithic BiCMOS decoder-mux architecture with integrated level-shifting circuitry that ensures TTL-compatible logic thresholds (0.8V/2.4V) across its full ±4.5V to ±18V dual-supply range. Its switch array uses matched FET pairs to achieve ≤10Ω on-resistance matching between channels at +25°C.
It supports break-before-make switching with a 10ns to 50ns interval and delivers <500ns transition time under ±15V supplies. Charge injection is tightly controlled (3.5pC typ) via optimized gate overlap design, minimizing voltage glitching during channel switching in high-impedance sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 16-channel single-ended mux: selects one analog input (NO1–NO16) to common output (COM) |
| On-Resistance (max) | 400Ω at TA = +25°C, VCOM = ±10V - ensures minimal signal attenuation and gain error in precision gain stages |
| NO-Off Leakage (max) | 20pA at +25°C - preserves accuracy in high-impedance sensor front-ends and integrator hold phases |
| Charge Injection (typ) | 3.5pC - limits voltage step error on 100pF sampling capacitors to <35mV, critical for 12-bit+ ADC drivers |
| Supply Range | +4.5V to +30V single supply or ±4.5V to ±20V dual supply - supports industrial ±15V and battery-powered +5V/+12V systems |
| Logic Compatibility | TTL/CMOS inputs (0.8V low / 2.4V high) over full temp and supply range - eliminates need for level shifters in mixed-voltage systems |
| ESD Protection | >2000V per Method 3015.7 - enables robust handling in bench-test and automated assembly environments |
Pinout & Package
MAX336CAI+ is housed in a 28-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, RoHS-compliant and lead-free. The package footprint matches industry-standard SSOP-28 land patterns (Maxim land pattern no. 90-0095).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply rail: accepts +4.5V to +30V (single) or up to +20V (dual) |
| 2,3,13 | N.C. | No internal connection - must be left unconnected or grounded per layout best practice |
| 4–11 | NO8–NO1 | Analog inputs (bidirectional): routed to COM when selected by A0–A3 address |
| 12 | GND | Digital ground reference: ties logic threshold and substrate bias; separate from analog ground in mixed-signal layouts |
| 14–17 | A3–A0 | Binary address inputs: decode 16 channels (0000–1111); TTL/CMOS compatible |
| 18 | EN | Active-high enable: disables all switches when low; reduces supply current to <1µA |
| 19–26 | NO16–NO9 | Analog inputs (bidirectional): complete 16-channel set with pins 4–11 |
| 27 | V− | Negative supply rail: accepts −4.5V to −20V (dual) or connects to GND for single supply |
| 28 | COM | Common analog output: bidirectional node shared across all 16 switched paths |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ (e.g., −15V to +15V), enabling full dynamic range utilization in bipolar instrumentation |
| Bidirectional conduction | Identical on-resistance and leakage in either direction - allows use as mux or demux without performance penalty |
| Guaranteed low charge injection | 3.5pC typical ensures sub-LSB settling error in 12-bit SAR ADC sample-and-hold interfaces |
| Plug-in DG506/DG507 upgrade | PIN-compatible replacement in SSOP-28: same pinout, voltage ratings, and logic interface - no PCB redesign required |
| Low on-resistance matching | ≤10Ω max mismatch between any two channels at +25°C - maintains channel-to-channel gain consistency in multi-sensor systems |
Applications
| High-Precision Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Multiplexing outputs from 16 thermocouple amplifiers into a single 24-bit ΣΔ ADC with external cold-junction compensation. IC Role / Device Role / Timing Role: Analog signal router selecting one sensor path per conversion cycle; timing governed by EN and address setup/hold relative to ADC sampling clock. Use Value: 20pA off-leakage prevents thermal EMF drift errors; 400Ω RON contributes <0.002% gain error in 100kΩ source impedance configurations. | Use Scenario: Switching calibration reference voltages (±10V standards) into DUT input channels during self-test sequences. IC Role / Device Role / Timing Role: Precision reference selector enabling NIST-traceable voltage injection; controlled via FPGA-generated A0–A3 and EN strobes. Use Value: 3.5pC charge injection avoids reference perturbation; >2000V ESD rating withstands repeated probe contact in production test fixtures. |
| Medical Sensor Signal Conditioning | Industrial Process Monitoring |
Use Scenario: Routing EEG electrode signals (±10mV, high-Z) through anti-alias filtering before digitization in portable neuro-monitoring hardware. IC Role / Device Role / Timing Role: Low-noise analog switch isolating individual electrode paths; enabled only during active sampling windows to minimize noise coupling. Use Value: <20pA leakage prevents DC offset accumulation across 1MΩ electrode impedances; rail-to-rail operation preserves full biopotential swing. | Use Scenario: Scanning 16 RTD or 4–20mA transmitter outputs into a central PLC analog input module with shared excitation and signal conditioning. IC Role / Device Role / Timing Role: Industrial-grade multiplexer handling both voltage and current loop signals; operates from ±15V rails with robust ESD immunity. Use Value: 400Ω RON stable over −40°C to +85°C ensures repeatable 4-wire RTD measurements; SSOP-28 package supports compact, vibration-resistant PCB layouts. |
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 die, Wide SO-28 package (1.27mm pitch); 1.00W max power dissipation vs. 727.3mW for SSOP | Better thermal performance in high-density layouts; larger footprint eases hand-soldering and rework | Select for prototyping or thermally constrained designs where board space permits larger package |
| DG506AKN+ | Industry-standard 16-channel mux; 500Ω max RON, 50pA max off-leakage, no guaranteed charge injection spec | Lacks ESD rating >2000V and rail-to-rail support beyond ±13.5V; not drop-in for MAX336CAI+ in high-precision roles | Acceptable only in cost-sensitive, non-critical signal routing where leakage and charge injection are not design-limiting |
Compared with MAX336CWI+, the MAX336CAI+ offers higher density and lower thermal resistance per unit volume but reduced power handling; compared with DG506AKN+, it delivers superior leakage, charge injection, and ESD specs-making it the preferred choice for precision, high-reliability, or miniaturized systems.
Availability
MAX336CAI+ is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, medical sensor conditioning, and industrial process monitoring requiring stable component supply and long-term manufacturability.
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-prioritizing parameter guarantees over temperature and supply variation rather than raw speed or integration density.
FAQ
What is the maximum allowable supply voltage for MAX336CAI+?
The MAX336CAI+ supports a single supply from +4.5V to +30V or dual supplies from ±4.5V to ±20V. Absolute maximum ratings specify V+ to V− differential up to 44V, but sustained operation above ±20V or +30V violates specifications and risks permanent damage. For reliable long-term use, stay within the rated ranges documented in the datasheet's Electrical Characteristics tables.
Does MAX336CAI+ support rail-to-rail input signals?
Yes, the MAX336CAI+ supports true rail-to-rail analog signal handling: input and output signals can swing from V− to V+ without clipping or increased distortion. This is confirmed in the Electrical Characteristics table under "Analog Signal Range" (±15V with ±15V supplies) and explicitly stated in the Features section as "Bidirectional Rail-to-Rail® Signal Handling."
Is MAX336CAI+ pin-compatible with DG506 devices?
Yes, the MAX336CAI+ is a pin-compatible upgrade for the DG506 and DG507. The datasheet states this explicitly in the Benefits and Features section ("Plug-In Upgrade for Industry-Standard DG506/DG507") and confirms identical pin functions and ordering information for SSOP-28 packages. No PCB changes are required when replacing DG506AKN+ with MAX336CAI+.
What is the typical charge injection value for 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 determines the voltage glitch imposed on sampling capacitors during channel switching-critical in precision ADC front-ends. At 3.5pC, the glitch on a 100pF capacitor is 35mV, enabling accurate 12-bit resolution when combined with proper settling time and driver bandwidth.
Can MAX336CAI+ operate from a single +5V supply?
Yes, the MAX336CAI+ operates from a single +4.5V to +30V supply. With +5V, the analog signal range is 0V to +5V (per Electrical Characteristics-Single Supply table), on-resistance rises to 460–700Ω, and transition time increases to 350–600ns. Logic inputs remain TTL-compatible. While functional, performance trade-offs versus ±15V operation should be verified against system requirements.
MAX336CAI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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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