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Analog Devices Inc./Maxim Integrated MAX336CPI
- Part No.:
- MAX336CPI
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
MAX336CPI.pdf
- Description:
- IC MUX 16:1 400OHM 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,693
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Product details
Overview
MAX336CPI 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 rail-to-rail signal handling across ±4.5V to ±20V dual or +4.5V to +30V single supplies. Used in precision data acquisition systems requiring low charge injection (3.5pC typ) and high off-isolation (−82dB).
For engineers reviewing the MAX336CPI datasheet, MAX336CPI pinout, MAX336CPI application, or MAX336CPI equivalent, key selection criteria include guaranteed on-resistance matching (≤10Ω), TTL/CMOS-compatible enable/address inputs, ESD protection >2000V, and compatibility with legacy DG506/DG507 layouts in test equipment and signal routing designs.
Technical Context
The MAX336CPI implements a monolithic BiCMOS decoder-mux architecture with break-before-make switching (10–50ns tOPEN) and bidirectional signal paths. Its control logic accepts TTL-level inputs (0.8V–2.4V) across full temperature range and supply voltages, enabling direct interfacing with microcontrollers without level-shifting.
It supports both single-supply (V− tied to GND) and dual-supply operation, with analog signal range extending from V− to V+ (±15V typical). Charge injection (3.5pC typ) and low on-capacitance (CCOM(ON) = 22pF) ensure minimal transient error and wideband integrity up to 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 16-channel single-ended mux: selects one input from NO1–NO16 to COM. |
| 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 accuracy in high-impedance measurement paths (e.g., pH probes, strain gauges). |
| Charge Injection | 3.5pC typical - limits settling error in sample-and-hold and ADC front-end applications. |
| Supply Range | +4.5V to +30V single or ±4.5V to ±20V dual - supports industrial ±15V and battery-powered +5V/+12V systems. |
| Transition Time | 500ns max - enables reliable switching in moderate-speed data logging (≤1MHz update rates). |
| ESD Protection | >2000V per Method 3015.7 - reduces need for external protection in benchtop test equipment. |
| Logic Compatibility | TTL/CMOS inputs (0.8V–2.4V thresholds) - interoperable with FPGA, MCU, and CPLD I/O without buffers. |
Pinout & Package
MAX336CPI is housed in a 28-pin plastic DIP package (0°C to +70°C operating range), with through-hole mounting and 0.3-inch width. Pin layout follows industry-standard 16-channel mux footprint, enabling drop-in replacement for DG506.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply voltage input | Accepts +4.5V to +30V; powers internal logic and switch array. |
| V− | Negative supply voltage input | Accepts −4.5V to −20V; tied to GND for single-supply use. |
| GND | Logic ground reference | Reference for TTL/CMOS inputs; separate from analog ground path. |
| COM | Common analog output terminal | Bidirectional node connected to selected NOx channel; handles rail-to-rail signals. |
| NO1–NO16 | Analog input terminals | 16 bidirectional, interchangeable analog ports; no dedicated input/output direction. |
| A0–A3 | 4-bit binary address inputs | Selects active channel (0–15); decoded internally with no external logic required. |
| EN | Active-high enable input | Disables all switches when low; enables decoding and conduction when high (≥2.4V). |
| N.C. | No internal connection | Pins 2, 3, 13 - unused; must be left floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping - essential for full-scale sensor outputs in ±15V systems. |
| Guaranteed on-resistance matching | ≤10Ω max mismatch between channels - maintains consistent gain and offset across multiplexed channels. |
| Low charge injection (3.5pC typ) | Minimizes voltage glitch on COM during channel switching - critical for precision sampling before ADCs. |
| Plug-in upgrade for DG506/DG507 | PIN-compatible with industry-standard 16-channel muxes - enables performance upgrade without PCB redesign. |
| High off-isolation (−82dB) | Prevents crosstalk between unselected channels at 100kHz - preserves signal integrity in multi-sensor monitoring. |
| ESD-hardened design (>2000V) | Reduces field failure risk during handling and system integration - lowers test and qualification overhead. |
Applications
| Precision Data Acquisition | Precision Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from 16 thermocouple or RTD sensors into a single high-resolution ADC. IC Role / Device Role / Timing Role: Analog switch providing low-leakage, low-charge-injection channel selection synchronized to ADC sampling clock. Use Value: Enables 16:1 analog front-end consolidation while maintaining ≤0.01% gain error and sub-μV offset drift over temperature. | Use Scenario: Routing calibrated reference voltages or DAC outputs to multiple instrument amplifier inputs in automated test systems. IC Role / Device Role / Timing Role: Bidirectional signal router with rail-to-rail capability and matched on-resistance for gain-setting networks. Use Value: Ensures channel-to-channel gain consistency ≤0.1% and eliminates external calibration per path. |
| Test Equipment | Medical Instrumentation |
Use Scenario: Switching between multiple DUT signal paths (voltage, current, impedance) in benchtop multimeters and source-measure units. IC Role / Device Role / Timing Role: High-isolation, low-leakage multiplexer enabling guarded measurements and Kelvin sensing configurations. Use Value: Delivers >100MΩ effective isolation and <20pA leakage - meets Class II safety and accuracy requirements. | Use Scenario: Selecting EEG or ECG electrode inputs in portable patient monitors with battery-powered single-supply operation. IC Role / Device Role / Timing Role: Low-power, low-noise analog switch supporting +5V to +12V single supply and high-impedance biopotential sources. Use Value: Achieves <500nA total supply current and <50pA input bias - extends battery life and preserves signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG506ACJ | Higher on-resistance (600Ω max), no guaranteed charge injection spec, lower ESD rating (1500V). | Limited to non-critical industrial muxing where leakage & settling error are less constrained. | Use only if legacy board compatibility outweighs precision requirements. |
| ADG506AKRZ | Lower leakage (5pA typ), but higher on-resistance (700Ω max), no DG506 pinout compatibility. | Suitable for ultra-low-leakage medical sensors, but requires PCB redesign due to different pin mapping. | Prefer when leakage dominates design margin and layout flexibility exists. |
Compared with DG506ACJ and ADG506AKRZ, the MAX336CPI uniquely balances pin compatibility with DG506, sub-20pA leakage, and 3.5pC charge injection - making it the optimal upgrade path for existing test equipment and data loggers needing improved accuracy without hardware changes.
Availability
MAX336CPI is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and medical instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for MAX336CPI 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, communications, and computing markets.
The MAX336 product line was engineered for precision analog signal routing in environments demanding low leakage, low charge injection, and robust ESD tolerance - targeting test & measurement, data acquisition, and instrumentation applications.
FAQ
What is the maximum operating temperature range for the MAX336CPI?
The MAX336CPI is rated for 0°C to +70°C ambient operation, as indicated by the "C" grade suffix. This commercial-grade temperature range suits laboratory instruments, industrial controllers, and embedded systems not exposed to extreme thermal stress. The device's leakage and on-resistance specs are guaranteed across this full range, with NO-off leakage remaining below 1.25nA and on-resistance staying within 500Ω max. For extended temperature operation, consider the MAX336EPI+ (−40°C to +85°C) or MAX336MJI (−55°C to +125°C) variants.
Can the MAX336CPI operate from a single +5V supply?
Yes, the MAX336CPI supports single-supply operation from +4.5V to +30V. When using +5V, connect V− to GND. However, note that on-resistance increases (up to 700Ω max) and transition time degrades (up to 600ns) compared to ±15V operation. Signal range is limited to 0V to +5V, and leakage remains within spec (<20pA at +25°C). For low-distortion, high-speed performance, dual ±15V is preferred - but +5V is viable for cost-sensitive, low-bandwidth applications like sensor polling in microcontroller-based systems.
Is the MAX336CPI pin-compatible with the DG506?
Yes, the MAX336CPI is explicitly designed as a pin-compatible upgrade for the DG506. Both use identical 28-pin DIP footprints, matching pin functions including V+, V−, GND, COM, NO1–NO16, A0–A3, and EN. No PCB modification is required for replacement. Key improvements include lower on-resistance (400Ω vs. 600Ω), lower leakage (<20pA vs. <50pA), guaranteed 3.5pC charge injection, and >2000V ESD protection - delivering measurable performance gains while preserving mechanical and electrical layout integrity.
What is the significance of rail-to-rail signal handling in the MAX336CPI?
Rail-to-rail signal handling in the MAX336CPI means the analog switch passes signals from V− to V+ without clipping or distortion - e.g., ±15V inputs fully pass through when powered from ±15V supplies. This enables full utilization of sensor output ranges (e.g., ±10V industrial transducers) and eliminates the need for level-shifting circuitry. Unlike older muxes with limited headroom, the MAX336CPI maintains low on-resistance and low leakage across the entire supply rail span, directly improving dynamic range and DC accuracy in precision measurement chains.
How does the MAX336CPI manage break-before-make timing?
The MAX336CPI guarantees a break-before-make interval (tOPEN) of 10ns to 50ns, ensuring no momentary short between two analog channels during address transitions. This prevents signal coupling, current surges, or latch-up in sensitive circuits such as current-source outputs or high-gain amplifiers. The timing is internally controlled and independent of supply voltage or temperature, verified across −40°C to +125°C for military-grade variants. In the MAX336CPI, this behavior is confirmed in the truth table and timing diagrams, making it safe for use in multiplexed feedback networks and guarded measurement topologies.
MAX336CPI 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:
- Through Hole
- Supplier Device Package:
- 28-PDIP
MAX336CPI FAQ
1.How can I place an order for MAX336CPI through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX336CPI 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 MAX336CPI reliable?
The price and inventory of MAX336CPI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX336CPI is usually 5 days.
3.What payment methods are accepted for MAX336CPI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX336CPI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX336CPI?
MAX336CPI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX336CPI 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 MAX336CPI?
For technical support, including MAX336CPI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX336CPI requirements.
6.How does Aetrix verify that MAX336CPI is sourced from the original manufacturer or authorized distributors?
All MAX336CPI 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 MAX336CPI meets industry standards.
7.What is the process for return or replacement of MAX336CPI?
All MAX336CPI units undergo pre-shipment inspection (PSI). If there is an issue with MAX336CPI, 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 MAX336CPI part is unused and in its original packaging.
Return procedure for MAX336CPI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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