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Analog Devices Inc./Maxim Integrated MAX305EPE
- Part No.:
- MAX305EPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX305EPE.pdf
- Description:
- IC SWITCH DPST-NOX2 35OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,627
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Product details
Overview
MAX305EPE from Maxim Integrated is a precision dual SPST analog switch optimized for high-accuracy signal routing in bipolar or single-supply systems. It features 35Ω max on-resistance, <2Ω channel-to-channel match, <15pC charge injection, rail-to-rail analog signal handling (V− to V+), and operates across −40°C to +85°C. Used in test equipment and military radios where low distortion and tight matching are critical.
For engineers reviewing the MAX305EPE datasheet, MAX305EPE pinout, MAX305EPE application, or MAX305EPE equivalent, key selection criteria include guaranteed on-resistance flatness (Δ3Ω max), off-leakage <6nA at +85°C, turn-on/turn-off times under 150ns/100ns, and compatibility with ±4.5V to ±20V or +10V to +30V supplies.
Technical Context
The MAX305EPE implements two independent normally-open (NO) SPST switches fabricated using Maxim's silicon-gate process, ensuring low charge injection (15pC typ) and matched on-resistance (<2Ω between channels). Its CMOS/TTL-compatible logic inputs (VL = +5V) drive internal transmission gates without external level-shifting.
Analog signal range spans full rail-to-rail (V− to V+) with breakdown voltage up to 44V, enabling operation with ±15V supplies while maintaining <35Ω RON and <5Ω RON flatness over temperature and signal swing. Off-isolation exceeds 72dB at 1MHz, and crosstalk is −90dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 35Ω - Ensures minimal signal attenuation and gain error in precision instrumentation paths. |
| On-Resistance Match (max) | 2Ω - Guarantees matched gain/attenuation between dual channels for differential or ratiometric measurements. |
| Charge Injection (max) | 15pC - Limits voltage glitch on sampled-hold capacitors, critical for ADC front-end accuracy. |
| Off-Leakage Current (max) | 6nA at +85°C - Prevents DC error accumulation in high-impedance sensor or integrator circuits. |
| Switching Speed | 150ns tON, 100ns tOFF - Supports multiplexing of signals up to ~3MHz without significant settling delay. |
| Analog Signal Range | V− to V+ - Enables true rail-to-rail switching with ±15V supplies or +24V single supply. |
| Supply Voltage Range | ±4.5V to ±20V or +10V to +30V - Provides flexibility in industrial and military power architectures. |
Pinout & Package
MAX305EPE is housed in a 16-pin plastic DIP (P16-1) package with 0.3-inch width and through-hole mounting. Pin 1 is COM1, pin 2–7 are not connected, pin 8 is COM2, pin 9 is NC1, pin 10 is IN2, pin 11 is V+, pin 12 is VL, pin 13 is GND, pin 14 is V−, pin 15 is IN1, and pin 16 is NC2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Common analog terminals - serve as bidirectional signal paths routed to NO1/NO2 when enabled. |
| 9, 16 | NC1, NC2 | Source analog terminals - internally connected to NO1/NO2; function as switch outputs in SPST configuration. |
| 10, 15 | IN2, IN1 | Digital control inputs - TTL/CMOS-compatible; high = switch closed (NO path conductive). |
| 11 | V+ | Positive supply - connects to substrate; must be ≥ |V−| + 0.3V and ≤ V− + 44V. |
| 12 | VL | Logic supply - fixed at +5V for TTL compatibility; ties to V+ only if CMOS logic levels are acceptable. |
| 13 | GND | Ground reference - serves as return for VL and negative supply bias in single-supply configurations. |
| 14 | V− | Negative supply - sets lower analog rail; clamped diodes protect against overvoltage beyond V− − 2V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports input signals from V− to V+ without clipping-enables full dynamic range utilization in ±15V systems. |
| Guaranteed RON flatness | Δ3Ω max over full analog range ensures consistent gain/attenuation regardless of signal voltage position. |
| Low charge injection | 15pC max minimizes sampling errors in precision S/H and multiplexed ADC applications. |
| Bipolar or single-supply operation | Operates identically across ±4.5V–±20V or +10V–+30V-reduces BOM count in mixed-voltage platforms. |
| High off-isolation | 72dB at 1MHz suppresses crosstalk between active and inactive channels in dense signal routing. |
Applications
| Test Equipment Signal Routing | Military Radio Channel Selection |
|---|---|
Use Scenario: Multiplexing calibrated reference voltages and sensor inputs in automated test systems requiring sub-0.1% gain matching. IC Role / Device Role / Timing Role: Dual SPST switch providing low-RON, matched-path signal selection before precision amplifiers or ADCs. Use Value: <2Ω RON match and Δ3Ω flatness eliminate calibration drift across channels; 15pC charge injection prevents hold capacitor corruption. |
Use Scenario: Selecting between antenna receive paths or IF filter banks in ruggedized HF/VHF transceivers operating from −40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability analog switch enabling fast, low-distortion RF front-end reconfiguration under wide temperature and supply variation. Use Value: 44V breakdown and rail-to-rail capability support ±15V supply designs; 6nA max off-leakage preserves signal integrity in high-Z RF detector stages. |
| Heads-Up Display (HUD) Video Switching | Battery-Operated Data Acquisition |
Use Scenario: Routing RGB video signals between multiple display sources in avionics HUDs where EMI immunity and low glitch energy are mandatory. IC Role / Device Role / Timing Role: Low-charge-injection SPST switch isolating video DAC outputs from display drivers during source transitions. Use Value: 15pC max charge injection prevents visible pixel glitches; 72dB off-isolation blocks crosstalk between color channels. |
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs in portable field instruments powered by 24V batteries or ±15V isolated rails. IC Role / Device Role / Timing Role: Precision analog switch enabling low-power, high-Z sensor interface with minimal offset drift over temperature. Use Value: 35µW typical power consumption extends battery life; <6nA off-leakage avoids measurement errors in >100MΩ sensor bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single-supply only (+5V to +36V); 1.5Ω typical RON; higher 25pC charge injection; 16-TSSOP package. | Better RON but lacks bipolar supply support and guaranteed matching; unsuitable for ±15V test gear. | Select when single-rail operation and ultra-low RON outweigh need for leakage/matching specs. |
| TS5A3159DCKR | Lower voltage (2.5V–5.5V); 0.75Ω RON; 12pC charge injection; 6-pin SC70; no V−/GND separation. | Designed for portable low-voltage logic-level switching-not rated for industrial/military temperature or high-voltage analog rails. | Choose only for cost-sensitive, low-voltage consumer applications where ±15V operation is irrelevant. |
Compared with ADG1419BRUZ and TS5A3159DCKR, the MAX305EPE uniquely supports bipolar supplies, guarantees <2Ω RON matching and <6nA leakage at +85°C, and maintains rail-to-rail performance up to ±20V-making it irreplaceable in high-accuracy, wide-temperature, wide-supply industrial and defense systems.
Availability
MAX305EPE is available at Aetrix Electronics and suitable for test equipment, military radio subsystems, and battery-operated data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX305EPE 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 defense markets.
The MAX301/MAX303/MAX305 family was designed specifically for precision analog signal routing in environments demanding low distortion, tight channel matching, and robust operation across wide supply and temperature ranges.
FAQ
What is the maximum analog signal voltage range supported by the MAX305EPE?
The MAX305EPE supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings allowing V+ up to 44V above V−. When operated at ±15V supplies, it reliably switches signals from −15V to +15V without clipping or increased distortion-critical for high-fidelity instrumentation and military comms systems using the MAX305EPE.
Does the MAX305EPE require separate logic and analog supplies?
Yes-the MAX305EPE requires three supply connections: V+ and V− for the analog switch core, and VL (typically +5V) for the logic interface. VL must be decoupled independently; tying VL directly to V+ enables CMOS-level inputs but forfeits TTL compatibility. This architecture ensures clean digital control without injecting noise into sensitive analog paths in the MAX305EPE.
How does the MAX305EPE achieve guaranteed on-resistance matching between channels?
The MAX305EPE achieves <2Ω guaranteed RON matching via Maxim's proprietary silicon-gate process and matched transistor layout techniques. This specification is tested across temperature (−40°C to +85°C) and voltage extremes, ensuring consistent gain tracking in dual-path applications like differential signal routing or ratiometric sensor interfaces using the MAX305EPE.
Can the MAX305EPE operate from a single +24V supply?
Yes-the MAX305EPE supports single-supply operation from +10V to +30V. With V+ = +24V and V− tied to ground (GND), it switches analog signals from 0V to +24V. Logic inputs remain TTL-compatible when VL = +5V. This configuration is widely used in industrial PLC I/O modules and portable test gear leveraging the MAX305EPE's rail-to-rail capability.
What is the significance of the "E" suffix in MAX305EPE?
Per Maxim's ordering nomenclature, the "E" in MAX305EPE denotes the extended temperature grade (−40°C to +85°C), distinguishing it from the commercial-grade "C" version (0°C to +70°C). The "PE" suffix specifies the 16-pin plastic DIP package (P16-1). This grading ensures the MAX305EPE meets performance specifications across its full industrial temperature range without derating.
MAX305EPE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX305EPE FAQ
1.How can I place an order for MAX305EPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX305EPE 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 MAX305EPE reliable?
The price and inventory of MAX305EPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX305EPE is usually 5 days.
3.What payment methods are accepted for MAX305EPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX305EPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX305EPE?
MAX305EPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX305EPE 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 MAX305EPE?
For technical support, including MAX305EPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX305EPE requirements.
6.How does Aetrix verify that MAX305EPE is sourced from the original manufacturer or authorized distributors?
All MAX305EPE 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 MAX305EPE meets industry standards.
7.What is the process for return or replacement of MAX305EPE?
All MAX305EPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX305EPE, 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 MAX305EPE part is unused and in its original packaging.
Return procedure for MAX305EPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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