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Analog Devices Inc./Maxim Integrated MAX333ACAP+T
- Part No.:
- MAX333ACAP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX333ACAP+T.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
MAX333ACAP+T from Maxim Integrated is a precision quad SPDT CMOS analog switch with ±4.5V to ±20V bipolar or +10V to +30V single-supply operation, <35Ω on-resistance (max), <2Ω channel-to-channel match, and <10pC charge injection. It serves as a rail-to-rail signal path selector in portable test equipment and communications interfaces.
For engineers reviewing the MAX333ACAP+T datasheet, MAX333ACAP+T pinout, MAX333ACAP+T application, or MAX333ACAP+T equivalent, key selection criteria include guaranteed on-resistance flatness (∆3Ω max), break-before-make timing (10ns typ), and TTL/CMOS-compatible logic inputs operating independently of supply voltage.
Technical Context
The MAX333ACAP+T implements four independent SPDT switches using silicon-gate CMOS process technology, enabling simultaneous control of analog signal routing without crosstalk degradation. Its level-translator circuitry ensures logic compatibility across supply ranges, while internal charge-balanced switching minimizes transients during state transitions.
It supports dual-supply operation with full rail-to-rail analog signal handling (V– to V+), and guarantees matched on-resistance between channels only under bipolar conditions. Break-before-make architecture prevents momentary shorting during switching, critical for multiplexer-based signal integrity in measurement systems.
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 or ratiometric measurements across switched paths |
| Charge Injection | <10pC - reduces settling error and glitch energy in sample-and-hold or ADC front-end circuits |
| Turn-On/Off Time | <175ns / <145ns - supports high-speed multiplexing up to ~3MHz without significant duty-cycle distortion |
| Analog Signal Range | V– to V+ - allows direct interfacing with bipolar op-amp stages or unipolar sensor outputs without level shifting |
| Logic Input Range | +0.8V to +2.4V - guarantees reliable switching regardless of supply voltage, simplifying controller interface design |
| ESD Rating | >2000V HBM - enhances robustness in handheld or field-deployable test equipment |
Pinout & Package
MAX333ACAP+T is housed in a 20-pin plastic DIP package (0°C to +70°C operating range), with through-hole mounting and standard 0.300" wide body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | Logic Inputs (IN1–IN4) | Accept TTL/CMOS levels; control respective SPDT switch states independently |
| 2, 9, 12, 19 | Normally Open Terminals (NO1–NO4) | Connect to selected signal path when corresponding INx = high; open-circuit when low |
| 3, 8, 13, 18 | Common Poles (COM1–COM4) | Signal input/output nodes; routed to NOx or NCx based on logic state |
| 4, 7, 14, 17 | Normally Closed Terminals (NC1–NC4) | Connected to COMx when INx = low; disconnected when INx = high |
| 5 | Negative Supply (V–) | Bipolar negative rail; must be connected even in single-supply mode (tied to GND) |
| 6 | Ground (GND) | Reference for logic inputs and substrate bias; not signal ground unless V– = GND |
| 15 | Not Internally Connected (N.C.) | No internal connection; must remain unconnected per datasheet |
| 16 | Positive Supply (V+) | Primary power rail; supports +10V to +30V unipolar or ±4.5V to ±20V bipolar operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals spanning full V– to V+ range, eliminating need for external clamping or level-shifting in mixed-signal systems |
| Guaranteed on-resistance flatness | ∆3Ω max over full analog signal range ensures consistent gain and linearity across all input voltages |
| Break-before-make switching | 10ns typical open interval prevents signal shorting during transition-critical for protecting sensitive downstream circuitry |
| Low quiescent current | <50µA total supply current enables battery-powered operation in portable instruments without compromising speed |
| TTL/CMOS logic compatibility | Input thresholds fixed at +0.8V/+2.4V regardless of supply voltage, allowing direct interface with 3.3V or 5V microcontrollers |
Applications
| Test Equipment | Communications Systems |
|---|---|
Use Scenario: Automated test system multiplexing multiple sensor inputs to a shared ADC channel. IC Role / Device Role / Timing Role: Precision analog signal router selecting one of four differential sensor outputs per cycle. Use Value: Low on-resistance match (<2Ω) and flatness (∆3Ω) preserve measurement accuracy across channels without calibration. | Use Scenario: Signal path selection in modular PBX line-card interface supporting analog voice and data lines. IC Role / Device Role / Timing Role: SPDT switch isolating or connecting tip/ring pairs to codec or hybrid circuits. Use Value: Rail-to-rail operation handles ±12V ringing signals and +5V signaling without external biasing. |
| Heads-Up Displays | Portable Instruments |
Use Scenario: Dynamic reconfiguration of video signal sources (e.g., camera feed vs. synthetic overlay) in avionics HUDs. IC Role / Device Role / Timing Role: High-speed analog switch enabling sub-microsecond source switching without visible artifacts. Use Value: 175ns turn-on time and low charge injection (<10pC) prevent pixel-level glitches during real-time video routing. | Use Scenario: Battery-powered handheld multimeter with auto-ranging analog front-end. IC Role / Device Role / Timing Role: Low-power signal path selector routing different voltage/current ranges to measurement amplifier. Use Value: Quiescent current <50µA extends battery life; bipolar supply support enables true zero-crossing measurement capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 8-channel single-pole, 20Ω max RON, but only 3.3V/5V single-supply operation; no bipolar support | Limited to low-voltage digital systems; unsuitable for ±15V test gear or analog telephony | Select when system uses only 3.3V/5V supplies and requires higher channel count over precision matching |
| TS5A3157DCKR | Single SPDT, 0.75Ω typical RON, but only +1.65V to +5.5V operation and no ESD rating >1kV | Targeted at mobile I/O switching-not rated for industrial signal routing or high-voltage isolation | Choose for ultra-low RON in compact 5V-only consumer devices where bipolar operation and ESD robustness are unnecessary |
Compared with ADG408BRZ and TS5A3157DCKR, the MAX333ACAP+T uniquely supports bipolar supplies up to ±20V, guarantees channel-matched on-resistance, and delivers >2000V ESD protection-making it the only option qualified for ruggedized test and telecom infrastructure use cases.
Availability
MAX333ACAP+T is available at Aetrix Electronics and suitable for test equipment, communications systems, and portable instruments requiring stable component supply and long-term obsolescence management.
Supply support for MAX333ACAP+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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets, emphasizing precision, reliability, and integration.
The MAX333A product line targets high-fidelity analog signal routing in environments demanding low distortion, tight parameter matching, and robust operation across wide supply and temperature ranges.
FAQ
What supply configurations does the MAX333ACAP+T support?
The MAX333ACAP+T supports both bipolar supplies (±4.5V to ±20V) and single-ended supplies (+10V to +30V). In single-supply mode, V– must be tied to ground. The device maintains rail-to-rail analog signal handling and guaranteed on-resistance specs only under bipolar operation per datasheet Note 4. Logic inputs remain compatible across all configurations due to fixed +0.8V/+2.4V thresholds.
Does the MAX333ACAP+T require external components for basic operation?
No external components are required for basic switching operation of the MAX333ACAP+T. Decoupling capacitors (0.1µF ceramic near V+ and V– pins) are recommended for noise suppression. The N.C. pin (Pin 15) must remain unconnected. Overvoltage protection diodes are optional and only needed if supply sequencing cannot be controlled-adding them reduces analog signal range by ~1V but preserves RON and leakage specs.
How does the MAX333ACAP+T handle signal integrity during switching?
The MAX333ACAP+T ensures signal integrity via break-before-make timing (10ns typical), minimizing transient shorts, and ultra-low charge injection (<10pC), reducing voltage glitches at COM terminals. Its guaranteed on-resistance flatness (∆3Ω max) maintains consistent gain across the full analog input range, while low off-capacitance (5pF) and high off-isolation (72dB) suppress crosstalk in dense multiplexer layouts.
Is the MAX333ACAP+T pin-compatible with older DG-series analog switches?
The MAX333ACAP+T is specified as an upgraded replacement for a DG211/DG212 pair or two DG403s, but it is not pin-compatible with any single DG-series part. Its 20-pin DIP layout differs from the 16-pin packages of DG211/DG212 and the 16-pin SOIC of DG403. Board redesign is required; however, its functional equivalence and superior specs (e.g., lower RON, better matching, higher ESD) justify the layout update in new designs.
What is the maximum operating temperature for the MAX333ACAP+T?
The MAX333ACAP+T is rated for 0°C to +70°C ambient operating temperature, as indicated by the 'C' suffix in the part number. This commercial-grade temperature range is validated per the Absolute Maximum Ratings table and Electrical Characteristics sections of the official datasheet. For extended temperature operation (–40°C to +85°C), the MAX333AEPP variant should be used instead.
MAX333ACAP+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-SSOP
MAX333ACAP+T FAQ
1.How can I place an order for MAX333ACAP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX333ACAP+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 MAX333ACAP+T reliable?
The price and inventory of MAX333ACAP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX333ACAP+T is usually 5 days.
3.What payment methods are accepted for MAX333ACAP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX333ACAP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX333ACAP+T?
MAX333ACAP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX333ACAP+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 MAX333ACAP+T?
For technical support, including MAX333ACAP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX333ACAP+T requirements.
6.How does Aetrix verify that MAX333ACAP+T is sourced from the original manufacturer or authorized distributors?
All MAX333ACAP+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 MAX333ACAP+T meets industry standards.
7.What is the process for return or replacement of MAX333ACAP+T?
All MAX333ACAP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX333ACAP+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 MAX333ACAP+T part is unused and in its original packaging.
Return procedure for MAX333ACAP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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