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Analog Devices Inc./Maxim Integrated MAX303CSE+
- Part No.:
- MAX303CSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX303CSE+.pdf
- Description:
- IC SWITCH SPDT X 2 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
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Product details
Overview
MAX303CSE+ from Maxim Integrated is a precision dual SPDT analog switch with two normally open (NO) and two normally closed (NC) poles, 35Ω max on-resistance, <2Ω channel-to-channel RON match, and 15pC guaranteed charge injection. It operates from ±4.5V to ±20V bipolar or +10V to +30V single supply and supports rail-to-rail analog signal switching in test equipment and military radio front-ends.
For engineers reviewing the MAX303CSE+ datasheet, MAX303CSE+ pinout, MAX303CSE+ application, or MAX303CSE+ equivalent, key selection criteria include guaranteed RON flatness (≤5Ω), sub-100ns turn-off time, -55°C to +125°C extended temp variants, and SO-16 package compatibility with high-isolation (72dB off-isolation) requirements.
Technical Context
The MAX303CSE+ implements a monolithic silicon-gate CMOS architecture with matched transistor pairs to ensure ≤2Ω RON tracking between its two independent SPDT switches. Its break-before-make timing (10–20ns) prevents signal shorting during state transitions, critical for sample-and-hold and multiplexer applications.
Charge injection is tightly controlled at ≤15pC via balanced gate drive and layout symmetry, enabling accurate DC-coupled switching without significant settling error. Off-isolation exceeds 72dB at 1MHz due to low 12pF off-capacitance and optimized channel guard ring design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT ×2, dual independent channels with NO/NC configuration |
| Max On-Resistance | 35Ω - ensures minimal signal attenuation and gain error in precision instrumentation paths |
| RON Match (Ch-to-Ch) | ≤2Ω - enables accurate differential signal routing and ratio-metric measurements |
| Charge Injection | ≤15pC - limits voltage glitch on sampled nodes, critical for 12-bit+ data acquisition |
| Turn-Off Time | <100ns - supports ≥5MHz multiplexing rates in automated test systems |
| Off-Leakage (85°C) | <6nA - preserves accuracy in high-impedance sensor interfaces and battery-monitoring circuits |
| Analog Signal Range | V− to V+ - supports true rail-to-rail operation with ±20V supplies or +30V single supply |
Pinout & Package
MAX303CSE+ is housed in a 16-pin narrow SOIC (S16-2) package with 1.27mm pitch, JEDEC MS-012AC compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Analog common terminals - bidirectional signal path shared by NO/NC poles per switch |
| 2–7 | N.C. | No internal connection - floating pins; no PCB trace required |
| 9, 16 | NC1, NC2 | Normally closed analog inputs - conduct to COM when logic input = LOW |
| 10, 15 | IN2, IN1 | CMOS/TTL-compatible digital control inputs - active-HIGH logic controls switch state |
| 11 | V+ | Positive supply input - connects to substrate; must be powered before V− and VL |
| 12 | VL | Logic supply input - fixed at +5V for TTL compatibility; ties to V+ for CMOS-level operation |
| 13 | GND | Ground reference - serves as negative supply return in single-supply configurations |
| 14 | V− | Negative supply input - enables bipolar operation and rail-to-rail analog swing |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON flatness | ≤5Ω over full signal range - eliminates gain nonlinearity in audio and sensor signal chains |
| Break-before-make delay | 10–20ns - prevents momentary shorting between analog sources during switching |
| Off-isolation | 72dB at 1MHz - suppresses crosstalk between adjacent channels in dense multiplexers |
| Channel-on capacitance | 39pF - minimizes bandwidth reduction and phase shift in high-frequency signal paths |
| Supply flexibility | ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-signal systems |
Applications
| Test Equipment Multiplexing | Military Radio Front-Ends |
|---|---|
Use Scenario: High-speed channel selection in automated test equipment scanning multiple DUTs with precision DC/AC signals. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing calibrated reference and measurement paths while maintaining signal integrity. Use Value: ≤2Ω RON match and ≤15pC charge injection ensure measurement repeatability across channels without recalibration. |
Use Scenario: Antenna and filter bank switching in ruggedized HF/VHF transceivers operating across wide temperature ranges. IC Role / Device Role / Timing Role: Signal path selector handling rail-to-rail RF IF signals up to ±15V under extreme environmental stress. Use Value: 44V breakdown rating and <6nA off-leakage at +85°C maintain isolation and dynamic range in field-deployed radios. |
| Heads-Up Display (HUD) Drivers | Battery-Operated Medical Sensors |
Use Scenario: Selecting between multiple video DAC outputs or gamma correction networks in automotive HUD projection systems. IC Role / Device Role / Timing Role: Low-glitch analog switch enabling seamless source transitions without visible display artifacts. Use Value: 15pC charge injection and <100ns tOFF prevent pixel corruption or brightness flicker during real-time video switching. |
Use Scenario: Multiplexing low-level biopotential signals (ECG, EEG) in portable diagnostic devices powered by coin cells. IC Role / Device Role / Timing Role: Ultra-low leakage analog switch isolating high-impedance electrodes during idle cycles to preserve battery life. Use Value: <250pA leakage at +25°C and 35µW quiescent power minimize drain on energy-constrained medical platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRUZ | Single 8-channel mux (not dual SPDT); 40Ω RON; no guaranteed RON match spec | Suitable for low-density multiplexing where channel matching is noncritical | Select only if topology requires 1:8 routing instead of independent dual SPDT control |
| TS5A23157DGSR | Single SPDT; 0.9Ω typical RON; 3.3V-only supply; 25pC charge injection | Optimized for low-voltage portable gear, not bipolar or high-voltage industrial use | Choose only for 3.3V systems requiring ultra-low RON, not for ±15V signal routing |
Compared with ADG408BRUZ and TS5A23157DGSR, the MAX303CSE+ uniquely delivers guaranteed dual SPDT topology with matched RON, bipolar supply support, and rail-to-rail analog capability-making it irreplaceable in precision test and military-grade signal routing where channel correlation and voltage range are non-negotiable.
Availability
MAX303CSE+ is available at Aetrix Electronics and suitable for test equipment multiplexing, military radio front-ends, and heads-up display drivers requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX303CSE+ 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 demanding industrial, automotive, and communications applications.
The MAX303CSE+ belongs to Maxim's precision analog switch family, engineered specifically for applications requiring guaranteed matching, low charge injection, and robust bipolar supply operation in mission-critical signal routing.
FAQ
What is the maximum allowable supply voltage for MAX303CSE+?
The MAX303CSE+ has an absolute maximum V+ to V− rating of 44V. It operates safely within ±4.5V to ±20V bipolar supplies or +10V to +30V single supply. Exceeding these limits risks permanent damage due to internal diode clamping and junction breakdown. Always observe proper power sequencing: V+ first, then VL, V−, and logic inputs.
Does MAX303CSE+ support rail-to-rail analog signal switching?
Yes, the MAX303CSE+ supports true rail-to-rail analog signal handling from V− to V+, enabled by its 44V breakdown rating and internal protection diodes. This allows full utilization of the supply rails-for example, ±15V analog signals with ±15V supplies or 0V to +30V signals with a +30V single supply-without clipping or distortion.
What is the guaranteed on-resistance match between the two SPDT switches in MAX303CSE+?
The MAX303CSE+ guarantees ≤2Ω on-resistance match between its two independent SPDT channels at +25°C, and ≤3Ω over the full operating temperature range (0°C to +70°C). This specification ensures consistent gain and minimal channel-to-channel error in differential or ratiometric measurement architectures.
Can MAX303CSE+ operate with a 3.3V logic supply (VL)?
No-VL must be +5V for guaranteed TTL compatibility. If VL is tied to a 3.3V rail, input thresholds shift and may cause unreliable switching. For 3.3V logic systems, tie VL to V+ (if V+ ≥ 4.5V) to enable CMOS-level operation, or use a level-shifter. The MAX303CSE+ datasheet specifies VL = +5V for all guaranteed timing and leakage specs.
Is MAX303CSE+ pin-compatible with other MAX30x variants in SO-16 package?
Yes-MAX301CSE+, MAX303CSE+, and MAX305CSE+ share identical SO-16 pinouts and footprint. However, their internal switch configurations differ: MAX301 is dual SPST-NO, MAX303 is dual SPDT, and MAX305 is quad SPST-NO. Swapping requires verifying signal routing and logic polarity; direct replacement is not functionally valid without schematic review.
MAX303CSE+ 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:
- 2
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX303CSE+ FAQ
1.How can I place an order for MAX303CSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX303CSE+ 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 MAX303CSE+ reliable?
The price and inventory of MAX303CSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX303CSE+ is usually 5 days.
3.What payment methods are accepted for MAX303CSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX303CSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX303CSE+?
MAX303CSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX303CSE+ 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 MAX303CSE+?
For technical support, including MAX303CSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX303CSE+ requirements.
6.How does Aetrix verify that MAX303CSE+ is sourced from the original manufacturer or authorized distributors?
All MAX303CSE+ 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 MAX303CSE+ meets industry standards.
7.What is the process for return or replacement of MAX303CSE+?
All MAX303CSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX303CSE+, 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 MAX303CSE+ part is unused and in its original packaging.
Return procedure for MAX303CSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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