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Analog Devices Inc./Maxim Integrated MAX333ACAP+
- Part No.:
- MAX333ACAP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX333ACAP+.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,446
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Product details
Overview
The MAX333ACAP+ from Maxim Integrated is a precision quad SPDT CMOS analog switch operating on bipolar supplies (±4.5V to ±20V) or single-ended supplies (+10V to +30V), featuring <35Ω on-resistance, <2Ω channel-to-channel match, <10pC charge injection, 175ns turn-on time, and rail-to-rail analog signal handling-ideal for test equipment signal routing and portable instrumentation multiplexing.
For engineers reviewing the MAX333ACAP+ datasheet, MAX333ACAP+ pinout, MAX333ACAP+ application, or MAX333ACAP+ equivalent, this page delivers verified electrical specs, package-confirmed pin functions, real-world use cases in communications and display systems, and two validated alternative parts with documented functional trade-offs.
Technical Context
The MAX333ACAP+ integrates four independent SPDT switches fabricated using Maxim's silicon-gate CMOS process, enabling break-before-make switching (10ns typical) with guaranteed 145ns turn-off and 175ns turn-on times under ±15V dual supply. Its logic inputs are TTL/CMOS-compatible across +0.8V to +2.4V regardless of supply voltage.
Analog signal handling spans V− to V+, supporting rail-to-rail operation; off-channel leakage is guaranteed ≤6nA at +85°C, and on-resistance flatness is maintained within ∆3Ω over the full analog range-critical for precision measurement front-ends and low-distortion audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| On Resistance Match | <2Ω between channels - enables accurate differential signal switching without mismatch-induced offset |
| Charge Injection | <10pC - reduces glitch energy and settling time in sample-and-hold or ADC input stages |
| Turn-On Time | <175ns - supports high-speed multiplexing in automated test equipment (ATE) scan cycles |
| Analog Signal Range | V− to V+ - allows direct interfacing with op-amp outputs and sensor signals without level-shifting |
| Logic Compatibility | TTL/CMOS input thresholds (0.8V–2.4V) - simplifies interface with microcontrollers and FPGAs across supply domains |
| ESD Rating | >2000V HBM - enhances robustness during board assembly and field handling in portable instruments |
Pinout & Package
The MAX333ACAP+ 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 15 is not internally connected; pins 6 and 5 serve as GND and V− respectively; V+ is on pin 16.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | Logic Inputs (IN1–IN4) | Control individual SPDT switch state; TTL/CMOS compatible, referenced to GND |
| 2, 9, 12, 19 | Normally Open Terminals (NO1–NO4) | Analog output path when corresponding INx = high; connects to COMx only during active state |
| 3, 8, 13, 18 | Common Poles (COM1–COM4) | Central analog node per switch; accepts rail-to-rail signals from V− to V+ |
| 4, 7, 14, 17 | Normally Closed Terminals (NC1–NC4) | Default analog path when INx = low; disconnected when switch is activated |
| 5 | Negative Supply (V−) | Bipolar supply rail; must be ≥ −20V and ≤ −4.5V for dual-supply operation |
| 6 | Ground (GND) | Reference for logic inputs and substrate bias; tied to system ground in single-supply mode |
| 15 | Not Internally Connected (N.C.) | No internal connection; must remain unconnected on PCB to avoid parasitic coupling |
| 16 | Positive Supply (V+) | Primary power rail; supports +10V to +30V (single) or +4.5V to +20V (bipolar magnitude) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports VCOM, VNO, VNC from V− to V+ - eliminates need for external level shifters in mixed-supply systems |
| Guaranteed break-before-make | 10ns typical open interval prevents momentary shorting in critical signal paths like relay replacement or power domain isolation |
| Low quiescent current | <50µA total supply current - extends battery life in portable instruments and handheld test gear |
| Upgraded DG211/DG212 or DG403 replacement | Pin-compatible upgrade path with improved RON match and lower charge injection - reduces redesign effort in legacy analog mux designs |
| ESD-hardened construction | >2000V per Method 3015.7 - improves manufacturing yield and field reliability without external protection components |
Applications
| Test Equipment Signal Routing | Communications System Mux |
|---|---|
Use Scenario: Automated test equipment routes multiple sensor or DUT signals to shared ADC or signal analyzer channels. IC Role / Device Role / Timing Role: Quad SPDT switch selects one of two analog sources per channel under microcontroller control. Use Value: <35Ω on-resistance and <2Ω channel match preserve signal fidelity across all four channels during high-speed scanning. | Use Scenario: PBX/PABX systems route voice or data lines between line cards and central switching fabric. IC Role / Device Role / Timing Role: Analog switch isolates or connects subscriber line interfaces while maintaining DC continuity for loop supervision. Use Value: Rail-to-rail signal handling supports ±12V telephony signaling voltages without clipping or distortion. |
| Heads-Up Display (HUD) Interface | Portable Instrument Multiplexing |
Use Scenario: Automotive HUD controller selects between multiple video sources (camera, navigation, ADAS) before driving projection optics. IC Role / Device Role / Timing Role: Low-charge-injection MAX333ACAP+ prevents visible glitches during source transitions in real-time video paths. Use Value: <10pC charge injection minimizes pixel-level artifacts and ensures clean video switching at 60Hz frame rates. | Use Scenario: Handheld multimeter or oscilloscope uses analog switches to configure input ranges, coupling modes, and channel selection. IC Role / Device Role / Timing Role: Precision SPDT routing directs sensor outputs or reference voltages to measurement front-end amplifiers. Use Value: Guaranteed on-resistance flatness (∆3Ω max) maintains consistent gain calibration across full input voltage range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX333AEPP | Same die, extended temperature range (−40°C to +85°C); identical pinout and electrical specs | Suitable for industrial or automotive environments requiring wider thermal tolerance | Select MAX333AEPP when operating ambient exceeds +70°C or requires AEC-Q200 alignment |
| ADG408BRZ | Octal SPST (not SPDT); 44Ω typical RON; no guaranteed RON match or charge injection spec | Requires external logic to emulate SPDT behavior; higher on-resistance increases insertion loss | Choose ADG408BRZ only if octal SPST topology fits system architecture and precision matching is non-critical |
Compared with MAX333AEPP, the MAX333ACAP+ offers identical performance at lower cost but lacks extended temperature support; versus ADG408BRZ, it provides true SPDT functionality with superior matching and lower charge injection-critical for precision instrumentation where signal integrity outweighs channel count.
Availability
MAX333ACAP+ is available at Aetrix Electronics and suitable for test equipment, communications infrastructure, and portable instrumentation requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for MAX333ACAP+ 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 consumer applications.
The MAX333A product line delivers precision analog switching solutions optimized for low distortion, low leakage, and rail-to-rail operation in portable and automated test systems.
FAQ
What supply configurations does the MAX333ACAP+ support?
The MAX333ACAP+ operates with bipolar supplies from ±4.5V to ±20V or single-ended supplies from +10V to +30V. When using a single supply, V− must be connected to GND. The device guarantees rail-to-rail analog signal handling (V− to V+) and TTL/CMOS logic compatibility across all supported supply ranges. All specifications in the MAX333ACAP+ datasheet are validated under both configurations.
Is the MAX333ACAP+ pin-compatible with older DG-series analog switches?
Yes-the MAX333ACAP+ is explicitly designed as an upgraded replacement for a DG211/DG212 pair or two DG403 devices. It shares the same 20-pin DIP footprint and pin assignments, including identical IN/NO/NC/COM layout and power pin locations. However, the MAX333ACAP+ improves on RON matching (<2Ω vs. typical 5Ω), charge injection (<10pC vs. ~25pC), and ESD rating (>2000V vs. ~1000V).
What is the maximum allowable analog signal voltage range for the MAX333ACAP+?
The MAX333ACAP+ supports analog signals from V− to V+ across all pins (COM, NO, NC). With ±15V supplies, this equals ±15V; with +24V/V− = GND, it equals 0V to +24V. Absolute maximum ratings limit (VNO − VNC) to 32V and V+ to V− differential to 44V. Exceeding these violates absolute maximum ratings and risks permanent damage to the MAX333ACAP+.
How does charge injection affect system performance, and what is the guaranteed value for MAX333ACAP+?
Charge injection causes voltage glitches at switch transitions, degrading accuracy in sample-and-hold circuits or ADC front-ends. The MAX333ACAP+ guarantees ≤10pC charge injection-measured at VCOM = ±15V, V+ = +16.5V, V− = −16.5V-which limits glitch amplitude to sub-millivolt levels into typical 10nF hold capacitors. This specification is validated across temperature and supply conditions for the MAX333ACAP+.
Can the MAX333ACAP+ be used in battery-powered portable instruments?
Yes-the MAX333ACAP+ draws less than 50µA quiescent current with all logic inputs high or low, making it ideal for portable instruments. Its ability to operate from +10V to +30V single supplies aligns with common Li-ion or multi-cell alkaline configurations. Combined with <35Ω on-resistance and rail-to-rail operation, the MAX333ACAP+ enables high-fidelity signal routing without external level shifters or regulators in handheld test gear.
MAX333ACAP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX333ACAP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX333ACAP+ 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+ reliable?
The price and inventory of MAX333ACAP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX333ACAP+ is usually 5 days.
3.What payment methods are accepted for MAX333ACAP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX333ACAP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX333ACAP+?
MAX333ACAP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX333ACAP+ 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+?
For technical support, including MAX333ACAP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX333ACAP+ requirements.
6.How does Aetrix verify that MAX333ACAP+ is sourced from the original manufacturer or authorized distributors?
All MAX333ACAP+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX333ACAP+?
All MAX333ACAP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX333ACAP+, 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+ part is unused and in its original packaging.
Return procedure for MAX333ACAP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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