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Analog Devices Inc./Maxim Integrated MAX303ESE+
- Part No.:
- MAX303ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX303ESE+.pdf
- Description:
- IC SWITCH SPDT X 2 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:153
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Product details
Overview
MAX303ESE+ from Maxim Integrated is a precision dual SPDT analog switch with two normally open (NO) and two normally closed (NC) poles, designed for high-accuracy signal routing in ±4.5V to ±20V or +10V to +30V supply systems. It delivers <22Ω typical on-resistance, <2Ω matched RON between channels, <15pC charge injection, <6nA off-leakage at +85°C, and sub-100ns turn-off time - enabling use in sample-and-hold circuits and military-grade test equipment.
For engineers reviewing the MAX303ESE+ datasheet, MAX303ESE+ pinout, MAX303ESE+ application, or MAX303ESE+ equivalent, key selection criteria include rail-to-rail analog signal handling (VANA = V− to V+), guaranteed break-before-make timing (10–20ns), CMOS/TTL logic compatibility, and low 35µW power consumption in battery-operated guidance systems.
Technical Context
The MAX303ESE+ implements a monolithic silicon-gate CMOS architecture optimized for precision analog switching. Its dual SPDT topology supports independent control of two separate analog paths, each with matched NO/NC pole pairs and guaranteed flat on-resistance (ΔRON ≤ 5Ω over full signal range).
It features integrated logic-level translation via dedicated VL pin, enabling TTL-compatible operation across full bipolar supply range (±4.5V to ±20V) while maintaining low charge injection (15pC max) and high off-isolation (72dB at 1MHz). Break-before-make timing ensures no signal shorting during state transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT (2× NO + 2× NC poles) |
| On-Resistance (RON) | <22Ω typical, ≤35Ω max - ensures minimal signal attenuation and gain error in precision instrumentation |
| RON Match Between Channels | <2Ω max - enables accurate differential signal routing without channel-to-channel gain mismatch |
| Charge Injection | <15pC - prevents voltage glitches in sample-and-hold and ADC front-end applications |
| Off-Leakage Current | <6nA at +85°C - maintains signal integrity in high-impedance sensor interfaces |
| Switching Speed | tON <150ns, tOFF <100ns - supports high-throughput data acquisition up to ~5MHz |
| Analog Signal Range | VANA = V− to V+ (up to ±20V) - allows true rail-to-rail signal switching without clipping |
Pinout & Package
MAX303ESE+ is housed in a 16-pin narrow SOIC (S16-2) package, 7.5mm × 10.3mm body, 1.27mm pitch, RoHS-compliant, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Analog common terminals - bidirectional signal path junctions for SPDT switching |
| 2–7 | N.C. | No internal connection - unused pins; must remain unconnected per design |
| 9, 16 | NC1, NC2 | Analog source (NC) terminals - normally closed poles, referenced to V−/V+ rails |
| 10, 15 | IN2, IN1 | Digital control inputs - TTL/CMOS-compatible, active-high logic controls switch state |
| 11 | V+ | Positive supply input - connects to substrate; supports up to +20V (bipolar) or +30V (single) |
| 12 | VL | Logic supply input - sets logic threshold; +5V required for TTL compatibility |
| 13 | GND | Negative supply reference - used as ground return in single-supply mode; connects to V− in bipolar mode |
| 14 | V− | Negative supply input - supports down to −20V; defines lower analog rail boundary |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | VANA spans full V− to V+ range (±20V max), eliminating level-shifting in wide-dynamic-range systems |
| Guaranteed break-before-make timing | 10–20ns delay prevents momentary shorting between NO and NC paths during transition |
| Matched on-resistance tracking | <2Ω max mismatch ensures <0.1% gain error in differential or ratiometric measurement paths |
| Low-power operation | 35µW typical quiescent power enables integration into portable and battery-powered avionics |
| High off-isolation | 72dB at 1MHz minimizes crosstalk between inactive channels in multi-signal test fixtures |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Precision sampling of fast-changing sensor outputs in aerospace telemetry systems. IC Role / Device Role / Timing Role: Dual SPDT switch routes analog input to hold capacitor and reference voltage with sub-100ns timing control. Use Value: Low 15pC charge injection prevents hold-step errors; matched RON ensures consistent settling across dual channels. |
Use Scenario: Automated signal routing in ATE platforms performing multi-point parametric testing. IC Role / Device Role / Timing Role: High-speed analog multiplexer enabling sequential connection of DUT signals to shared measurement circuitry. Use Value: 72dB off-isolation and 90dB crosstalk suppression maintain measurement accuracy across 100+ test points. |
| Military Radios | Battery-Operated Systems |
Use Scenario: Antenna diversity switching and IF signal path selection in secure HF/VHF transceivers. IC Role / Device Role / Timing Role: SPDT switch toggles between receive antennas or transmit paths under microcontroller control. Use Value: ±20V bipolar operation supports high-dynamic-range RF front-ends; 44V breakdown withstands ESD transients. |
Use Scenario: Power domain isolation and sensor signal conditioning in handheld field instruments. IC Role / Device Role / Timing Role: Low-leakage analog switch enables long-duration battery life while preserving signal fidelity in sleep modes. Use Value: <6nA off-leakage at +85°C extends operational runtime; 35µW quiescent power reduces thermal load in sealed enclosures. |
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 |
|---|---|---|---|
| ADG1434BRUZ | 4-channel SPDT, 1.5Ω RON, but requires ≥±5V supplies only; no VL pin - logic tied to VDD | Higher precision, lower RON, but lacks rail-to-rail analog range (limited to VDD–VSS); unsuitable for ±20V signal routing | Select when ultra-low on-resistance and 4-channel density outweigh need for wide supply flexibility |
| TS5A3157DCKR | Single SPDT, 0.75Ω RON, 5V-only supply, 1.5pC charge injection - smaller footprint, lower cost | Not pin-compatible; single-channel only; cannot replace dual-switch functionality without redesign | Choose for cost-sensitive, low-voltage (<5.5V), single-path applications where size and leakage are critical |
Compared with ADG1434BRUZ and TS5A3157DCKR, the MAX303ESE+ uniquely supports ±20V analog signal routing with guaranteed break-before-make timing and dual SPDT configuration in one 16-pin SOIC - making it irreplaceable in military-grade test and guidance systems requiring wide supply tolerance and channel matching.
Availability
MAX303ESE+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, military radio signal routing, battery-operated instrumentation, and automated test equipment requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MAX303ESE+ 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 defense applications.
The MAX303ESE+ belongs to Maxim's precision analog switch family, engineered specifically for high-accuracy signal routing in environments requiring rail-to-rail operation, low charge injection, and guaranteed channel matching - especially in military and aerospace systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX303ESE+?
The MAX303ESE+ supports a full rail-to-rail analog signal range from V− to V+, with absolute maximum ratings of ±20V for bipolar operation and up to +30V for single-supply use. This allows direct switching of signals spanning the entire supply rails without external level-shifting, which is essential in precision instrumentation and military radios where signal integrity must be preserved across wide dynamic ranges. The MAX303ESE+ maintains specified performance within this range.
Does the MAX303ESE+ require a separate logic supply voltage, and what is its function?
Yes, the MAX303ESE+ requires a dedicated VL pin (Pin 12) for logic-level referencing. When VL = +5V, the device guarantees TTL-compatible input thresholds (VINH = +2.4V, VINL = +0.8V) across its full ±4.5V to ±20V analog supply range. This decouples logic interface requirements from analog supply constraints - a key feature that enables reliable operation in mixed-supply systems. The MAX303ESE+ will not meet TTL specs if VL deviates from +5V.
How does the MAX303ESE+ ensure signal integrity during switching transitions?
The MAX303ESE+ guarantees break-before-make timing of 10–20ns, preventing momentary shorting between NO and NC paths during state changes. Combined with <15pC charge injection and <2Ω RON matching, this ensures minimal voltage glitching and gain error in sensitive applications like sample-and-hold circuits. These parameters are production-tested and guaranteed over temperature, not just characterized - a critical distinction for the MAX303ESE+ in mission-critical designs.
Can the MAX303ESE+ operate from a single positive supply, and what are the limits?
Yes, the MAX303ESE+ supports single-supply operation from +10V to +30V. In this configuration, V− (Pin 14) is connected to system ground, GND (Pin 13) serves as the negative reference, and analog signals swing from 0V to V+. The device retains all key specifications - including <22Ω RON, <6nA leakage at +85°C, and rail-to-rail capability - across this range. This makes the MAX303ESE+ suitable for portable test gear and industrial PLC I/O modules using single-rail power architectures.
What is the thermal performance of the MAX303ESE+ in continuous operation?
The MAX303ESE+ in narrow SOIC (S16-2) has a power dissipation rating of 696mW at +70°C, derating at 8.70mW/°C above that temperature. At full rated load and worst-case supply conditions, junction temperature rise remains within safe limits for −40°C to +85°C operation. Its low 35µW quiescent power minimizes self-heating, and the guaranteed RON flatness (≤5Ω ΔRON) over temperature ensures stable performance without recalibration - a requirement verified in the MAX303ESE+ datasheet's thermal characterization graphs.
MAX303ESE+ 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX303ESE+ FAQ
1.How can I place an order for MAX303ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX303ESE+ 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 MAX303ESE+ reliable?
The price and inventory of MAX303ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX303ESE+ is usually 5 days.
3.What payment methods are accepted for MAX303ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX303ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX303ESE+?
MAX303ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX303ESE+ 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 MAX303ESE+?
For technical support, including MAX303ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX303ESE+ requirements.
6.How does Aetrix verify that MAX303ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX303ESE+ 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 MAX303ESE+ meets industry standards.
7.What is the process for return or replacement of MAX303ESE+?
All MAX303ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX303ESE+, 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 MAX303ESE+ part is unused and in its original packaging.
Return procedure for MAX303ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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