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Analog Devices Inc./Maxim Integrated MAX333ACWP+T
- Part No.:
- MAX333ACWP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX333ACWP+T.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:694
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Product details
Overview
MAX333ACWP+T from Maxim Integrated is a precision quad SPDT CMOS analog switch with 20-pin wide SOIC package, ±4.5V to ±20V or +10V to +30V supply operation, <35Ω on-resistance (max), <2Ω channel-to-channel match, and <10pC charge injection-used in test equipment signal routing and portable instrumentation front-ends.
For engineers reviewing the MAX333ACWP+T datasheet, MAX333ACWP+T pinout, MAX333ACWP+T application, or MAX333ACWP+T equivalent, this page delivers verified electrical specs, rail-to-rail analog handling capability, break-before-make timing (10ns typ), leakage performance at +85°C, and real-world substitution guidance for DG211/DG212 and DG403-based designs.
Technical Context
The MAX333ACWP+T implements four independent SPDT switches using silicon-gate CMOS process, supporting both bipolar (±4.5V–±20V) and single-ended (+10V–+30V) supplies. Its logic inputs are TTL/CMOS-compatible across 0.8V–2.4V thresholds regardless of supply voltage.
Analog signal range extends rail-to-rail (V− to V+), with guaranteed flat on-resistance (∆3Ω max) and low off-capacitance (5pF). Break-before-make switching prevents momentary shorting during state transitions, critical for multiplexed measurement paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal signal attenuation and gain error in precision instrumentation paths |
| On Resistance Match | <2Ω between channels - enables accurate differential and ratiometric measurements without calibration |
| Charge Injection | <10pC - reduces settling error and glitch energy in sample-and-hold and ADC input stages |
| Off-Leakage Current | <6nA at +85°C - preserves high-impedance sensor node integrity over temperature |
| Supply Range | ±4.5V to ±20V or +10V to +30V - supports legacy bipolar systems and modern single-rail industrial supplies |
| Turn-On/Off Time | <175ns / <145ns - enables fast channel scanning in automated test equipment (ATE) |
| ESD Rating | >2000V HBM - improves robustness during board assembly and field handling |
Pinout & Package
MAX333ACWP+T is housed in a 20-pin wide SOIC (SO) package with 0.300" body width and standard 0.050" pitch. Pin 6 is GND; pins 5 and 16 are V− and V+, respectively; pins 1,10,11,20 are logic inputs (IN1–IN4); pins 2,9,12,19 are normally open terminals (NO1–NO4); pins 3,8,13,18 are common poles (COM1–COM4); pins 4,7,14,17 are normally closed terminals (NC1–NC4); pin 15 is not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,10,11,20 | Logic Input (IN1–IN4) | Accepts TTL/CMOS levels (0.8V–2.4V) independent of supply; controls switch state |
| 2,9,12,19 | Normally Open Terminal (NO1–NO4) | Connects to COM when logic input = high; open-circuit otherwise |
| 3,8,13,18 | Common Pole (COM1–COM4) | Signal path hub - connects to either NO or NC depending on IN state |
| 4,7,14,17 | Normally Closed Terminal (NC1–NC4) | Connects to COM when logic input = low; open-circuit otherwise |
| 5 | Negative Supply (V−) | Bipolar negative rail; must be ≤ V+ − 44V; ties substrate to V+ per chip topography |
| 6 | Ground (GND) | Reference for single-supply operation; connect to 0V when V− = GND |
| 15 | Not Internally Connected (N.C.) | No internal bond; leave unconnected or tie to GND for mechanical stability |
| 16 | Positive Supply (V+) | Bipolar positive rail or single-supply rail; supports up to +30V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | VCOM, VNO, VNC operate from V− to V+ - eliminates level-shifting in ±15V data acquisition systems |
| Guaranteed break-before-make | 10ns typical open interval - prevents signal shorting during channel switching in multiplexed sensor arrays |
| Low quiescent current | <50µA total - extends battery life in portable instruments with multiple switched signal paths |
| ESD-hardened design | >2000V per Method 3015.7 - reduces field failure risk in unshielded test fixtures and handheld devices |
| Matched on-resistance flatness | ∆3Ω max over full analog range - maintains linearity and THD in audio and precision DC signal routing |
Applications
| Test Equipment Signal Routing | Communications System Multiplexing |
|---|---|
Use Scenario: Automated test equipment routes multiple DUT signals to shared measurement resources (oscilloscope, DMM, signal generator). IC Role / Device Role / Timing Role: Quad SPDT switch selects analog signal paths under microcontroller control; break-before-make prevents cross-talk during reconfiguration. Use Value: <35Ω on-resistance and <2Ω matching preserve signal fidelity across 4 channels, enabling calibrated multi-channel parametric testing without per-channel compensation. | Use Scenario: PBX/PABX systems route voice or signaling tones between line cards and central switching fabric. IC Role / Device Role / Timing Role: Analog switch isolates and connects subscriber line interfaces while maintaining DC continuity for loop supervision. Use Value: Rail-to-rail operation handles ±12V ring signals and +48V talk battery without external biasing; <6nA off-leakage ensures reliable loop detection at temperature extremes. |
| Heads-Up Display Video Switching | Portable Instrument Front-End |
Use Scenario: Military avionics HUD overlays synthetic vision data onto pilot's forward view using analog RGB video sources. IC Role / Device Role / Timing Role: High-speed SPDT switching selects between primary and backup video generators with sub-200ns transition. Use Value: <10pC charge injection minimizes pixel-level glitches during source switching; 5pF off-capacitance preserves video bandwidth up to 100MHz. | Use Scenario: Handheld multimeter or oscilloscope uses programmable front-end to support voltage, current, resistance, and capacitance measurement modes. IC Role / Device Role / Timing Role: Configures signal path gain, attenuation, and input protection topology via microcontroller GPIO. Use Value: <50µA quiescent current allows continuous switching readiness during battery-powered operation; ±20V supply tolerance accommodates overvoltage transients on input jacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRUZ | 8-channel single-pole single-throw (SPST), 28Ω on-resistance, no break-before-make guarantee | Higher channel count but lacks SPDT topology and matched on-resistance spec | Select when needing more than 4 switch paths and can tolerate higher leakage (10nA @ +85°C) |
| TS5A3157DCKR | Single SPDT, 0.75Ω on-resistance, 5V-only supply, 25pC charge injection | Lower RON but limited to 5V operation and higher charge injection degrades precision sampling | Select only for low-voltage, non-precision signal gating where speed > accuracy |
Compared with ADG408BRUZ and TS5A3157DCKR, the MAX333ACWP+T uniquely combines quad SPDT topology, bipolar/single-supply flexibility, <2Ω channel matching, and <10pC charge injection-making it irreplaceable in calibrated test equipment and high-reliability portable instrumentation where signal integrity and thermal stability are non-negotiable.
Availability
MAX333ACWP+T is available at Aetrix Electronics and suitable for test equipment signal routing, communications system multiplexing, heads-up display video switching, and portable instrument front-end designs requiring stable component supply and long-term obsolescence management.
Supply support for MAX333ACWP+T 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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX333A product line delivers high-accuracy, low-distortion analog switching for systems demanding rail-to-rail signal handling, low charge injection, and guaranteed channel matching-targeting automated test equipment and portable instrumentation.
FAQ
What supply voltage ranges does the MAX333ACWP+T support?
The MAX333ACWP+T supports dual-supply operation from ±4.5V to ±20V and single-supply operation from +10V to +30V. When using a single supply, V− must be tied to ground. The device maintains rail-to-rail analog signal handling (V− to V+) across all supported supply configurations, and its logic inputs remain TTL/CMOS-compatible regardless of supply voltage.
Does the MAX333ACWP+T guarantee break-before-make switching?
Yes, the MAX333ACWP+T guarantees break-before-make operation with a typical open interval of 10ns. This prevents momentary shorting between NO and NC terminals during state transitions-a critical feature for avoiding signal corruption in multiplexed measurement systems. The specification is validated under standard test conditions (V+ = +15V, V− = −15V, CL = 10nF) and applies across the full operating temperature range.
What is the maximum on-resistance mismatch between channels in the MAX333ACWP+T?
The MAX333ACWP+T guarantees on-resistance mismatch of less than 2Ω between any two channels under bipolar supply conditions (±4.5V to ±20V). This tight matching is specified and tested per device, enabling precise ratiometric measurements and balanced differential signal routing without per-channel calibration. It is not guaranteed under single-supply operation.
Can the MAX333ACWP+T handle analog signals beyond the supply rails?
No-the MAX333ACWP+T cannot handle analog signals beyond its supply rails. Its absolute maximum analog signal range is strictly V− to V+, as confirmed by Absolute Maximum Ratings and Electrical Characteristics tables. Exceeding this range risks permanent damage. The device does support rail-to-rail operation within those bounds, meaning signals may swing fully from V− to V+ without clipping or distortion.
Is the MAX333ACWP+T pin-compatible with the DG211 or DG403?
The MAX333ACWP+T is specified as an upgraded replacement for a DG211/DG212 pair or two DG403s, but it is not pin-compatible with either. Its 20-pin wide SOIC footprint differs from the 16-pin packages of DG211/DG212 and DG403. While functional equivalence exists in quad SPDT topology and performance envelope, PCB layout revision is required to integrate the MAX333ACWP+T in place of those legacy parts.
MAX333ACWP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -78dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MAX333ACWP+T FAQ
1.How can I place an order for MAX333ACWP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX333ACWP+T 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 MAX333ACWP+T reliable?
The price and inventory of MAX333ACWP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX333ACWP+T is usually 5 days.
3.What payment methods are accepted for MAX333ACWP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX333ACWP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX333ACWP+T?
MAX333ACWP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX333ACWP+T 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 MAX333ACWP+T?
For technical support, including MAX333ACWP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX333ACWP+T requirements.
6.How does Aetrix verify that MAX333ACWP+T is sourced from the original manufacturer or authorized distributors?
All MAX333ACWP+T 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 MAX333ACWP+T meets industry standards.
7.What is the process for return or replacement of MAX333ACWP+T?
All MAX333ACWP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX333ACWP+T, 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 MAX333ACWP+T part is unused and in its original packaging.
Return procedure for MAX333ACWP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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