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Analog Devices Inc./Maxim Integrated MAX320EUA+T
- Part No.:
- MAX320EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX320EUA+T.pdf
- Description:
- IC SWITCH SPST-NOX2 35OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,158
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Product details
Overview
MAX320EUA+T from Maxim Integrated is a precision dual SPST analog switch with two normally open (NO) channels, designed for ±3V to ±8V bipolar supply operation. It delivers 35Ω max on-resistance, 150ns max turn-on time, and 100pA max leakage at +25°C-enabling high-fidelity signal routing in ±5V DAC/ADC interfaces and battery-powered test equipment.
For engineers reviewing the MAX320EUA+T datasheet, MAX320EUA+T pinout, MAX320EUA+T application, or MAX320EUA+T equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), low 5pC charge injection for sample-and-hold integrity, ±5V RON flatness ≤4Ω, and 2000V ESD protection per Method 3015.7.
Technical Context
The MAX320EUA+T implements complementary bipolar transistor switching architecture optimized for low distortion and minimal signal-dependent RON variation across the full analog range (V− to V+). Its logic inputs accept TTL- and CMOS-compatible thresholds referenced to V+, enabling direct interfacing with microcontrollers operating from the same positive rail.
Each channel operates bidirectionally with matched RON (≤2Ω difference between channels) and tightly controlled RON flatness (≤4Ω), ensuring consistent gain and phase response in precision instrumentation paths. Charge injection is limited to 5pC max, critical for maintaining accuracy in high-resolution data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±3V to ±8V dual supply - supports wide-range analog signal switching without level-shifting circuitry |
| Max On-Resistance | 35Ω at ±5V - ensures minimal insertion loss and voltage drop in signal paths up to ±3V |
| RON Matching | <2Ω between channels - preserves amplitude balance in differential or dual-channel signal routing |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, essential for 12-bit+ ADC front-ends |
| Leakage Current | 100pA max at +25°C - maintains high-impedance node integrity in low-power sensor interfaces |
| Switching Speed | tON <150ns, tOFF <100ns - enables multiplexing of audio-band and medium-speed control signals |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling margin during board assembly and field service |
Pinout & Package
MAX320EUA+T is housed in an 8-pin µMAX package (3mm × 3mm, 0.5mm pitch), rated for 0°C to +70°C operation. The package features exposed pad for thermal enhancement and is RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Normally open analog terminal for Channel 1 - connects to COM1 only when IN1 = logic low |
| 2 | COM2 | Common analog terminal for Channel 2 - bidirectional signal path shared with NO2/NC2 |
| 3 | IN2 | Logic input for Channel 2 - active-low control; drives internal switch gate when pulled to V− |
| 4 | V− | Negative supply rail - must be established before analog inputs; sets lower bound of analog signal range |
| 5 | V+ | Positive supply rail - establishes upper analog signal limit; powers internal level-shifting logic |
| 6 | COM1 | Common analog terminal for Channel 1 - bidirectional path shared with NO1 |
| 7 | IN1 | Logic input for Channel 1 - active-low control; compatible with 0V–V+ logic swing |
| 8 | NO2 | Normally open analog terminal for Channel 2 - connects to COM2 only when IN2 = logic low |
Key Features
| Feature | Design Value |
|---|---|
| Bipolar supply support | Operates from ±3V to ±8V - eliminates need for external level shifters in mixed-signal systems |
| Low RON flatness | <4Ω over full analog range - minimizes harmonic distortion in audio and video signal paths |
| Guaranteed low charge injection | <5pC - prevents settling errors in precision sample-and-hold and integrator circuits |
| Ultra-low power consumption | <1.25mW at ±5V - extends battery life in portable medical and test instrumentation |
| High off-isolation | 72dB at 1MHz - suppresses crosstalk between adjacent channels in dense multiplexer layouts |
Applications
| Battery-Powered Test Equipment | ±5V Precision Data Acquisition |
|---|---|
|
Use Scenario: Portable multimeter front-end multiplexing analog signals from multiple sensors into a single ADC channel. IC Role / Device Role / Timing Role: Dual SPST switch routing isolated sensor outputs while preserving signal fidelity and minimizing offset drift. Use Value: 100pA leakage and 5pC charge injection prevent measurement error accumulation across 100kΩ+ source impedances. |
Use Scenario: Input conditioning stage for 16-bit SAR ADCs in industrial PLC modules using ±5V reference rails. IC Role / Device Role / Timing Role: Signal gating device selecting between calibration references and process inputs under microcontroller control. Use Value: 35Ω RON and <2Ω matching ensure consistent gain scaling across dual-channel simultaneous sampling paths. |
| Audio Signal Routing | Military Radio Front-End Switching |
|
Use Scenario: Analog audio path selection in professional mixer ICs requiring low THD and wide dynamic range. IC Role / Device Role / Timing Role: Bidirectional analog switch controlling line-level signal flow between preamp, effects loop, and output driver stages. Use Value: 72dB off-isolation and <4Ω RON flatness maintain SNR >95dB and minimize frequency-dependent attenuation. |
Use Scenario: Antenna and filter bank switching in handheld HF/VHF transceivers operating in harsh environmental conditions. IC Role / Device Role / Timing Role: High-reliability analog switch isolating RF receive paths from transmit power stages during T/R sequencing. Use Value: 2000V ESD rating and -40°C to +85°C qualification (via MAX320ESA variant lineage) ensure field survivability without external protection. |
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 |
|---|---|---|---|
| ADG1421BRMZ | Single-supply only (±15V max), higher RON (1.3Ω typ), no bipolar supply support | Requires level-shifting for ±5V signal chains; better suited for high-voltage industrial muxes | Select when operating from 0V–15V supplies and needing higher breakdown voltage |
| TS5A23157DGSR | Single-supply (1.65V–5.5V), 0.9Ω RON, but only 1000V ESD and no ±8V capability | Limited to low-voltage consumer audio; unsuitable for ±5V DAC/ADC interface or military-grade reliability | Choose for cost-sensitive, battery-powered consumer gear with 3.3V logic compatibility |
Compared with ADG1421BRMZ and TS5A23157DGSR, the MAX320EUA+T uniquely supports true bipolar ±3V to ±8V operation with guaranteed 5pC charge injection and 2000V ESD-making it the only option qualified for precision ±5V data converter interface and ruggedized portable instrumentation.
Availability
MAX320EUA+T is available at Aetrix Electronics and suitable for battery-operated test equipment, ±5V precision data acquisition systems, and military radio front-end switching requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for MAX320EUA+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 and mixed-signal ICs for precision, power, and interface applications in industrial, medical, and communications markets.
The MAX320 series belongs to Maxim's precision analog switch product line, engineered specifically for low-distortion, low-leakage signal routing in dual-supply data conversion and instrumentation systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX320EUA+T?
The MAX320EUA+T supports analog signals from V− to V+, with absolute maximum ratings allowing V+ up to (V− − 0.3V) and V− down to (V+ + 0.3V). When powered from ±5V supplies, the full analog range is −5V to +5V. This rail-to-rail capability enables direct interfacing with ±5V DACs and ADCs without external level-shifting circuitry. The MAX320EUA+T maintains low RON flatness (<4Ω) across this entire range, ensuring minimal signal distortion.
Does the MAX320EUA+T support break-before-make switching?
No, the MAX320EUA+T does not implement break-before-make functionality. That feature is exclusive to the MAX322 variant (one NO + one NC switch), which guarantees a minimum 2ns delay between channel turn-off and turn-on. The MAX320EUA+T contains two normally open switches only, and its truth table shows independent, non-interlocked control of each channel via separate IN1 and IN2 pins. Engineers requiring break-before-make must select MAX322EUA+T instead.
What is the typical on-resistance of the MAX320EUA+T at ±5V supply?
The typical on-resistance of the MAX320EUA+T at ±5V supply is 16Ω, with a maximum specified value of 35Ω across the full operating temperature range. This value is measured with 1.0mA current through the switch and ±3V applied to the NO or NC terminal. The low RON and tight matching (<2Ω difference between channels) make the MAX320EUA+T suitable for precision gain-setting and low-error multiplexing in instrumentation-grade signal paths.
Can the MAX320EUA+T operate from a single supply?
No, the MAX320EUA+T requires dual supplies (V+ and V−) and is not specified for single-supply operation. Its internal architecture relies on symmetric bipolar rails to achieve low leakage, low charge injection, and rail-to-rail analog signal handling. For single-supply alternatives, Maxim recommends the MAX323/MAX324/MAX325 family, which share similar performance metrics but are optimized for 3V to 15V single-rail use. Using the MAX320EUA+T with only V+ and ground will result in undefined behavior and potential damage.
What package type and dimensions does the MAX320EUA+T use?
The MAX320EUA+T uses the 8-pin µMAX package (3mm × 3mm body, 0.5mm lead pitch), with an exposed pad for improved thermal performance. Its footprint matches industry-standard 8-pin SO packages but occupies ~40% less board area. The package is rated for 0°C to +70°C operation and complies with RoHS Directive 2011/65/EU. Pin 1 is located at the top-left corner when the notch faces upward, and the exposed pad is internally connected to V− for optimal grounding in noise-sensitive analog layouts.
MAX320EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX320EUA+T FAQ
1.How can I place an order for MAX320EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX320EUA+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 MAX320EUA+T reliable?
The price and inventory of MAX320EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX320EUA+T is usually 5 days.
3.What payment methods are accepted for MAX320EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX320EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX320EUA+T?
MAX320EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX320EUA+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 MAX320EUA+T?
For technical support, including MAX320EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX320EUA+T requirements.
6.How does Aetrix verify that MAX320EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX320EUA+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 MAX320EUA+T meets industry standards.
7.What is the process for return or replacement of MAX320EUA+T?
All MAX320EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX320EUA+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 MAX320EUA+T part is unused and in its original packaging.
Return procedure for MAX320EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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