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Analog Devices Inc./Maxim Integrated MAX303ESE+T
- Part No.:
- MAX303ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX303ESE+T.pdf
- Description:
- IC SWITCH SPDT X 2 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,351
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Product details
Overview
MAX303ESE+T 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 matching, and 15pC charge injection. It operates from ±4.5V to ±20V bipolar or +10V to +30V single supply, enabling rail-to-rail signal switching in test equipment and military radios.
For engineers reviewing the MAX303ESE+T datasheet, MAX303ESE+T pinout, MAX303ESE+T application, or MAX303ESE+T equivalent, key selection criteria include guaranteed on-resistance flatness (≤5Ω), sub-100ns turn-off time, -40°C to +85°C industrial temperature range, SO-16 narrow package, and CMOS/TTL logic compatibility without level-shifting.
Technical Context
The MAX303ESE+T implements a monolithic silicon-gate CMOS architecture optimized for high-accuracy analog signal routing. Its dual SPDT topology supports independent control of two switch pairs, each with break-before-make timing (10–20ns) to prevent signal shorting during state transitions.
It features matched on-resistance across channels (<2Ω at +25°C), flat RON over full analog range (ΔRON ≤ 5Ω), and ultra-low off-leakage (<6nA at +85°C), making it suitable for precision sample-and-hold and low-drift multiplexing where channel uniformity and signal integrity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT (2× NO + 2× NC poles) |
| Max On-Resistance | 35Ω - ensures minimal signal attenuation and gain error in precision DC/low-frequency paths |
| On-Resistance Match | ≤2Ω between channels - enables accurate differential signal routing and ratiometric measurements |
| Charge Injection | ≤15pC - limits voltage glitch on sampled capacitors in S/H circuits and ADC front-ends |
| Turn-Off Time | <100ns - supports high-speed multiplexing up to ~5MHz without significant settling delay |
| Supply Range | ±4.5V to ±20V or +10V to +30V - allows direct interfacing with ±15V op-amps and rail-to-rail signal chains |
| Off-Leakage @ +85°C | <6nA - preserves accuracy in high-impedance sensor interfaces and long-time-constant integrators |
Pinout & Package
MAX303ESE+T 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 | 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 - unused pins; no routing or grounding required |
| 9, 16 | NC1, NC2 | Normally closed analog inputs - conduct to COM when IN = LOW |
| 10, 15 | IN2, IN1 | CMOS/TTL-compatible digital control inputs - active HIGH, no external pull-ups needed |
| 11 | V+ | Positive supply input - connects to substrate; must be powered before V− and logic inputs |
| 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 |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ (up to ±20V), eliminating level-shifting in mixed-supply systems |
| Guaranteed break-before-make | 10–20ns delay prevents momentary shorting between NO and NC paths during switching |
| Low and matched on-resistance | ≤35Ω max with ≤2Ω channel match ensures consistent gain and minimal THD in audio/precision paths |
| Ultra-low charge injection | ≤15pC minimizes sampling errors in S/H circuits and maintains DC accuracy in high-Z nodes |
| Wide supply flexibility | Operates from ±4.5V to ±20V or +10V to +30V - compatible with legacy ±15V and modern 24V industrial rails |
Applications
| Test Equipment Multiplexing | Military Radio Signal Routing |
|---|---|
Use Scenario: High-accuracy automated test systems route multiple sensor or DUT signals to shared instrumentation amplifiers and ADCs. IC Role / Device Role / Timing Role: Dual SPDT analog switch selects between calibrated reference sources and DUT outputs under microcontroller control. Use Value: ≤2Ω on-resistance matching and ≤5Ω flatness preserve measurement linearity across channels; <100ns switching enables rapid test sequencing. |
Use Scenario: Secure voice/data radios require reliable RF front-end signal path selection between antennas, filters, and transceivers. IC Role / Device Role / Timing Role: Precision analog switch routes baseband I/Q signals while maintaining phase coherence and low intermodulation. Use Value: <6nA off-leakage at +85°C prevents bias drift in sensitive mixer stages; ±20V supply support matches legacy radio power rails. |
| Heads-Up Display (HUD) Calibration | Battery-Operated Medical Sensors |
Use Scenario: Automotive HUDs use laser projection with real-time brightness and focus calibration via precision DAC-controlled current sources. IC Role / Device Role / Timing Role: MAX303ESE+T switches between calibration resistors and feedback networks in laser driver loops. Use Value: 15pC charge injection avoids visible flicker or offset jumps during auto-calibration cycles; SO-16 package fits compact HUD PCB layouts. |
Use Scenario: Portable ECG or glucose monitors condition weak bio-signals using low-power op-amps and programmable gain stages. IC Role / Device Role / Timing Role: Analog switch configures gain-setting resistors and sensor excitation paths in ultra-low-power sleep/wake cycles. Use Value: 35µW typical power consumption extends battery life; -40°C to +85°C rating ensures reliability in field-deployed devices. |
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 | 8-channel single-pole single-throw (SPST); 44Ω max RON; no NC path; requires external logic for SPDT emulation | Suitable for high-channel-count multiplexing but lacks native SPDT topology and break-before-make | Choose when system needs >2 switch paths and can tolerate higher RON and added control complexity |
| TS5A3157DCKR | Single SPDT; 0.75Ω typical RON; +1.65V to +5.5V only; no bipolar support; 30pC charge injection | Optimized for low-voltage portable gear, not industrial/military analog signal ranges | Choose only for 3.3V/5V-only designs requiring ultra-low RON, not for ±15V or rail-to-rail signal handling |
Compared with ADG408BRUZ and TS5A3157DCKR, the MAX303ESE+T uniquely delivers native dual SPDT functionality with guaranteed break-before-make, bipolar supply support, and sub-6nA leakage at +85°C-making it irreplaceable for precision, wide-supply, high-reliability analog routing where topology and thermal stability are non-negotiable.
Availability
MAX303ESE+T is available at Aetrix Electronics and suitable for test equipment multiplexing, military radio signal routing, heads-up display calibration, and battery-operated medical sensors requiring stable component supply across extended temperature and supply ranges.
Supply support for MAX303ESE+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 MAX303ESE+T belongs to the MAX30x precision analog switch family, engineered for applications demanding low distortion, tight channel matching, and robust operation across wide voltage and temperature ranges.
FAQ
What is the maximum allowable supply voltage for MAX303ESE+T?
The MAX303ESE+T 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 ±20V or +30V risks permanent damage, even if V+ − V− remains ≤44V. Always observe proper power sequencing: V+ first, then VL, V−, and logic inputs.
Does MAX303ESE+T support true rail-to-rail analog signal switching?
Yes, the MAX303ESE+T supports rail-to-rail analog signal handling from V− to V+, including signals that swing beyond GND in single-supply mode. This is enabled by its 44V breakdown rating and internal protection diodes, allowing full utilization of the analog supply rails without clipping or distortion.
What is the logic voltage requirement for controlling MAX303ESE+T?
The MAX303ESE+T accepts TTL- or CMOS-level logic inputs. For TTL compatibility, tie VL to +5V; for CMOS compatibility, connect VL to V+. Input thresholds are VINH ≥ +2.4V and VINL ≤ +0.8V when VL = +5V. Input current remains below ±1µA across temperature, minimizing controller loading.
Can MAX303ESE+T be used in sample-and-hold circuits?
Yes, the MAX303ESE+T is explicitly qualified for sample-and-hold applications due to its guaranteed ≤15pC charge injection, <2Ω on-resistance matching, and low leakage (<6nA at +85°C). These parameters minimize hold-step error, droop, and channel-to-channel gain mismatch in precision S/H designs.
Is the SO-16 narrow package of MAX303ESE+T RoHS-compliant and lead-free?
Yes, the MAX303ESE+T in the narrow SOIC (S16-2) package is RoHS-compliant and lead-free per Maxim's standard manufacturing process. The device carries the "+T" suffix indicating tape-and-reel packaging and full compliance with EU RoHS Directive 2011/65/EU and related exemptions.
MAX303ESE+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:
- 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+T FAQ
1.How can I place an order for MAX303ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX303ESE+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 MAX303ESE+T reliable?
The price and inventory of MAX303ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX303ESE+T is usually 5 days.
3.What payment methods are accepted for MAX303ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX303ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX303ESE+T?
MAX303ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX303ESE+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 MAX303ESE+T?
For technical support, including MAX303ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX303ESE+T requirements.
6.How does Aetrix verify that MAX303ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX303ESE+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 MAX303ESE+T meets industry standards.
7.What is the process for return or replacement of MAX303ESE+T?
All MAX303ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX303ESE+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 MAX303ESE+T part is unused and in its original packaging.
Return procedure for MAX303ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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