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Analog Devices Inc./Maxim Integrated MAX333AEUP+T
- Part No.:
- MAX333AEUP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX333AEUP+T.pdf
- Description:
- IC SWITCH SPDT X 4 45OHM 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,103
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Product details
Overview
MAX333AEUP+T from Maxim Integrated is a precision quad SPDT CMOS analog switch operating with 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, and rail-to-rail analog signal handling. It serves in test equipment signal routing where low distortion and tight matching are critical.
For engineers reviewing the MAX333AEUP+T datasheet, MAX333AEUP+T pinout, MAX333AEUP+T application, or MAX333AEUP+T equivalent, key selection criteria include guaranteed on-resistance flatness (∆3Ω max), break-before-make timing (10ns typical), ESD tolerance (>2000V), and operation across -40°C to +85°C in TSSOP-20 packaging.
Technical Context
The MAX333AEUP+T implements four independent SPDT switches using silicon-gate CMOS process technology, enabling precise analog signal routing without signal clipping. Its logic inputs are TTL/CMOS-compatible (0.8V–2.4V thresholds) regardless of supply voltage, and analog terminals tolerate voltages from V− to V+.
It guarantees break-before-make switching to prevent momentary shorting during state transitions, with turn-on time <175ns and turn-off time <145ns under ±15V dual-supply conditions. Charge injection is tightly controlled at ≤10pC, minimizing transient glitches in high-impedance sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal insertion loss and voltage drop in signal paths |
| On Resistance Match | <2Ω between channels - enables matched gain/attenuation in multi-channel instrumentation |
| Charge Injection | <10pC - reduces sampling error in data acquisition and sample-and-hold circuits |
| Supply Range | ±4.5V to ±20V or +10V to +30V - supports both industrial bipolar and portable single-supply systems |
| Operating Temp | -40°C to +85°C - qualified for extended industrial environments |
| ESD Rating | >2000V HBM - enhances robustness during board handling and system integration |
| Off-Leakage @ +85°C | <6nA - preserves accuracy in high-impedance sensor front-ends |
Pinout & Package
The MAX333AEUP+T is housed in a 20-pin TSSOP package (4.4mm × 6.5mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin 6 is GND; pins 5 and 16 are V− and V+, respectively; pins 1,10,11,20 are logic inputs (IN1–IN4); pins 3,8,13,18 are common terminals (COM1–COM4); pins 4,7,14,17 are normally closed (NC1–NC4); pins 2,9,12,19 are normally open (NO1–NO4); pin 15 is not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,10,11,20 | Logic Input (IN1–IN4) | Accepts TTL/CMOS levels; controls corresponding SPDT switch state |
| 3,8,13,18 | Common Terminal (COM1–COM4) | Analog signal input/output node shared between NC and NO paths |
| 4,7,14,17 | Normally Closed (NC1–NC4) | Connected to COM when IN = low; breaks before make during transition |
| 2,9,12,19 | Normally Open (NO1–NO4) | Connected to COM when IN = high; guarantees no overlap with NC path |
| 5 | Negative Supply (V−) | Bipolar supply rail; must be ≤ V+ − 44V and ≥ -30V relative to ground |
| 16 | Positive Supply (V+) | Supports +10V to +30V (single) or ±4.5V to ±20V (dual); powers internal level translator |
| 6 | Ground (GND) | Reference for logic inputs and PCB return; tied to V− in single-supply mode |
| 15 | No Connect (N.C.) | Not bonded; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | VCOM, VNO, VNC operate from V− to V+ - eliminates clipping in full-supply-range signal chains |
| Guaranteed on-resistance flatness | ∆3Ω max over full analog range - maintains consistent gain/attenuation across input voltage swing |
| Break-before-make switching | 10ns typical open interval - prevents short-circuit transients during channel switching |
| Low quiescent current | <50µA total - extends battery life in portable instruments and handheld testers |
| TTL/CMOS logic compatibility | 0.8V–2.4V input threshold independent of supply - simplifies interface with mixed-voltage microcontrollers |
Applications
| Test Equipment Signal Routing | Communications Channel Switching |
|---|---|
Use Scenario: Automated test systems route multiple DUT signals to shared measurement resources (e.g., oscilloscope, DMM). IC Role / Device Role / Timing Role: Quad SPDT switch selects between reference and device-under-test paths with sub-200ns switching and no signal degradation. Use Value: <35Ω on-resistance and <2Ω matching preserve signal fidelity across four parallel channels, reducing calibration overhead. | Use Scenario: PBX/PABX systems dynamically assign voice/data lines to different trunk interfaces or codec paths. IC Role / Device Role / Timing Role: Analog switch routes audio-band signals between line cards and processing units under microcontroller control. Use Value: Rail-to-rail operation handles ±12V telephony signaling; <10pC charge injection prevents audible pop/click artifacts. |
| Heads-Up Display (HUD) Calibration | Portable Instrument Multiplexing |
Use Scenario: HUD alignment systems inject calibrated reference voltages into display driver feedback loops during factory calibration. IC Role / Device Role / Timing Role: Precision switch isolates calibration source from operational circuitry using break-before-make action. Use Value: Guaranteed 10ns break interval prevents momentary shorts that could disrupt sensitive display biasing networks. | Use Scenario: Handheld multimeters and portable spectrum analyzers multiplex sensor inputs or attenuator settings under battery-constrained conditions. IC Role / Device Role / Timing Role: Low-power analog switch enables signal path reconfiguration without draining Li-ion cells. Use Value: <50µA quiescent current allows continuous switch readiness during sleep modes, supporting fast wake-up response. |
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, ±15V supply only, no guaranteed RON match | Higher channel count but lacks SPDT topology and channel matching; requires external logic for break-before-make | Select when needing more than 4 switch paths and can accept higher leakage (100pA typical vs. 6nA max for MAX333AEUP+T) |
| TS5A3157DCKR | Single SPDT, 0.75Ω on-resistance, +1.65V to +5.5V supply, 15pC charge injection, SOT-23-6 | Lower voltage, lower RON, but single-channel and not rated for industrial temperature range | Select for low-voltage, space-constrained designs where quad integration and -40°C operation are not required |
Compared with ADG408BRUZ and TS5A3157DCKR, the MAX333AEUP+T uniquely delivers quad SPDT functionality with guaranteed channel matching, break-before-make timing, and industrial temperature support-making it optimal for precision routing in test and telecom infrastructure where signal integrity and reliability are non-negotiable.
Availability
MAX333AEUP+T is available at Aetrix Electronics and suitable for test equipment signal routing, communications channel switching, heads-up display calibration, and portable instrument multiplexing requiring stable component supply across industrial temperature ranges.
Supply support for MAX333AEUP+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, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX333A product line delivers precision analog switching solutions optimized for signal integrity-critical applications including automated test equipment and telecom infrastructure, emphasizing low distortion, tight parameter matching, and robust operation across wide supply and temperature ranges.
FAQ
What is the maximum allowable supply voltage difference for MAX333AEUP+T?
The MAX333AEUP+T specifies an absolute maximum V+ to V− differential of 44V. Exceeding this risks permanent damage. For reliable operation, maintain V+/V− within ±4.5V to ±20V (bipolar) or +10V to +30V (single-supply). The device's internal level translator and switch core are designed to function correctly only within these validated ranges, and operation outside them may cause undefined behavior or latch-up.
Does MAX333AEUP+T support rail-to-rail analog signal switching?
Yes, the MAX333AEUP+T supports true rail-to-rail analog signal handling: VCOM, VNO, and VNC terminals operate from V− to V+, with no headroom requirement. This capability is confirmed across all specified supply conditions (±4.5V to ±20V and +10V to +30V) and enables full utilization of the analog signal range without clipping-critical for high-fidelity test and measurement applications.
What is the guaranteed on-resistance match between channels in MAX333AEUP+T?
The MAX333AEUP+T guarantees on-resistance matching of less than 2Ω between any two channels under bipolar-supply operation (±4.5V to ±20V). This specification is explicitly tested and warranted-not just typical-and directly supports applications requiring matched gain or attenuation across multiple signal paths, such as multi-channel data acquisition or balanced signal routing.
Can MAX333AEUP+T operate from a single +12V supply?
Yes, the MAX333AEUP+T operates from a single +12V supply with V− connected to ground. In this configuration, analog signal range extends from 0V to +12V, and logic inputs remain compatible with standard TTL/CMOS levels. Electrical characteristics-including on-resistance (max 45Ω), leakage (<6nA at +85°C), and switching times-are fully specified and guaranteed for single-supply use per the manufacturer's datasheet.
Is the MAX333AEUP+T pinout compatible with legacy DG211/DG212 or DG403 devices?
No, the MAX333AEUP+T is not pin-compatible with DG211, DG212, or DG403. While it is described as an upgraded functional replacement, its 20-pin TSSOP layout, dual-supply architecture, and integrated level translator require a dedicated PCB footprint. Engineers must redesign the layout to accommodate V+, V−, GND, and the full complement of COM/NC/NO/IN pins-no drop-in replacement is possible without hardware revision.
MAX333AEUP+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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
MAX333AEUP+T FAQ
1.How can I place an order for MAX333AEUP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX333AEUP+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 MAX333AEUP+T reliable?
The price and inventory of MAX333AEUP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX333AEUP+T is usually 5 days.
3.What payment methods are accepted for MAX333AEUP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX333AEUP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX333AEUP+T?
MAX333AEUP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX333AEUP+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 MAX333AEUP+T?
For technical support, including MAX333AEUP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX333AEUP+T requirements.
6.How does Aetrix verify that MAX333AEUP+T is sourced from the original manufacturer or authorized distributors?
All MAX333AEUP+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 MAX333AEUP+T meets industry standards.
7.What is the process for return or replacement of MAX333AEUP+T?
All MAX333AEUP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX333AEUP+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 MAX333AEUP+T part is unused and in its original packaging.
Return procedure for MAX333AEUP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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