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Analog Devices Inc./Maxim Integrated MAX323EUA+T
- Part No.:
- MAX323EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX323EUA+T.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,476
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Product details
Overview
MAX323EUA+T from Analog Devices is a precision dual SPST analog switch with two normally open (NO) channels, designed for single-supply operation from +2.7V to +16V. It delivers 60Ω max on-resistance, <2Ω channel-to-channel RON matching, and ultra-low 5μW power consumption-ideal for battery-powered audio/video switching and precision sample-and-hold circuits.
For engineers reviewing the MAX323EUA+T datasheet, MAX323EUA+T pinout, MAX323EUA+T application, or MAX323EUA+T equivalent, key selection criteria include guaranteed 150ns max tON, 100pA max off-leakage at +25°C, 5pC max charge injection, and µMAX-8 package compatibility with space-constrained portable instrumentation designs.
Technical Context
The MAX323EUA+T implements CMOS-based transmission-gate architecture optimized for bidirectional analog signal routing across its two independent NO switches. Its logic inputs are TTL/CMOS-compatible when powered from +5V, and rail-to-rail drive is supported across the full +2.7V to +16V supply range.
Each switch features break-before-make isolation only in the MAX325 variant-not applicable here-and guarantees low RON flatness (<6Ω) over the entire 0V to V+ analog signal range, enabling high-fidelity signal integrity in DAC/ADC interface and guidance system front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +16V single supply-enables direct integration into 3.3V, 5V, and 12V systems without level-shifting. |
| On-Resistance (RON) | 60Ω max at +25°C, +5V supply-minimizes signal attenuation and gain error in precision sensor interfaces. |
| RON Matching | <2Ω max between channels-ensures matched gain/phase response in differential or dual-path signal chains. |
| Charge Injection | 5pC max-reduces sampling glitches in high-resolution data acquisition and sample-and-hold applications. |
| Leakage Current | 100pA max at +25°C, 5.5V supply-preserves accuracy in high-impedance sensor nodes and battery-monitoring circuits. |
| Switching Speed | tON ≤150ns, tOFF ≤100ns at +5V-supports >5MHz multiplexing in test equipment and real-time control loops. |
| ESD Rating | 2000V per Method 3015.7-enhances robustness during board handling and field deployment in industrial environments. |
Pinout & Package
MAX323EUA+T is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.8mm height), RoHS-compliant and thermally enhanced for compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Normally Open Switch Terminal | Analog path closed only when IN1 = high; used as signal output or input depending on routing topology. |
| 2 (COM1) | Common Analog Terminal | Bidirectional I/O node shared with NO1; supports signal flow in either direction with minimal distortion. |
| 3 (IN2) | Logic Input for Channel 2 | TTL/CMOS-compatible control input; drives internal gate of second switch; requires rail-to-rail swing for lowest power. |
| 4 (GND) | Ground Reference | Primary return path for supply and logic; must be low-impedance to minimize noise coupling into analog paths. |
| 5 (NO2) | Normally Open Switch Terminal | Independent second NO path; enables dual-channel routing without crosstalk-induced errors (85dB typical). |
| 6 (COM2) | Common Analog Terminal | Second bidirectional node; isolated from COM1 to prevent inter-channel leakage (<2.5nA at +85°C). |
| 7 (IN1) | Logic Input for Channel 1 | Directly controls NO1–COM1 path; logic high enables conduction; no internal pull-up/down required. |
| 8 (V+) | Positive Supply Rail | Single power source for analog and digital sections; absolute max rating is +17V; sequencing before analog signals is mandatory. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Normally Open Configuration | Two independent SPST NO switches enable fail-safe open-circuit default state-critical for safety-critical signal gating in military radios and guidance systems. |
| Low RON Flatness | <6Ω variation across full 0V–V+ analog range ensures consistent gain and linearity in wide-dynamic-range video/audio switching. |
| Ultra-Low Power Consumption | <5μW quiescent power allows continuous operation in multi-year battery-powered devices like handheld test meters and portable medical monitors. |
| Guaranteed Charge Injection | ≤5pC maximum eliminates measurable step errors in 16-bit+ ADC sample-and-hold stages, preserving DC accuracy. |
| TTL/CMOS Logic Compatibility | Validated at +5V supply-simplifies interface with microcontrollers and FPGAs without external level translators. |
Applications
| Battery-Operated Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end selecting between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Dual SPST analog switch isolating high-impedance sense nodes and routing signals to shared ADC input. Use Value: 100pA max off-leakage prevents measurement drift; 60Ω RON ensures <0.1% gain error across 1MΩ input impedance. | Use Scenario: Headphone amplifier output stage selecting between left/right channels or mono/stereo modes. IC Role / Device Role / Timing Role: Low-distortion analog path switch enabling seamless channel mute/unmute with <150ns transition. Use Value: 5pC max charge injection avoids audible pop/click artifacts; 85dB crosstalk prevents L/R channel bleed. |
| Guidance System Sensor Interface | Test Equipment Multiplexer |
Use Scenario: Inertial measurement unit (IMU) conditioning circuit routing accelerometer and gyroscope outputs to ADC. IC Role / Device Role / Timing Role: Precision signal gate ensuring matched RON between X/Y/Z axis paths for differential processing. Use Value: <2Ω RON matching maintains phase coherence; -40°C to +85°C extended temp grade supports airborne operation. | Use Scenario: Automated test equipment scanning multiple DUT signals into a single high-speed digitizer. IC Role / Device Role / Timing Role: High-reliability multiplexer channel enabling >1MHz scan rates with minimal settling error. Use Value: 2000V ESD rating withstands repeated probe contact; fast tON/tOFF reduces test cycle time by ~12% vs. legacy switches. |
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 |
|---|---|---|---|
| ADG1221BRMZ-REEL7 | Higher RON (190Ω typ), wider supply (±15V dual or +12V single), 10pC charge injection. | Targeted at higher-voltage industrial PLC I/O modules, not optimized for sub-5V portable gear. | Select when dual-supply flexibility or higher breakdown voltage (>30V) is required; avoid for battery-sensitive designs. |
| TS5A23157DCUR | Lower RON (0.9Ω typ), narrower supply (1.65V–5.5V), 15pC charge injection, smaller 8-pin VSSOP. | Optimized for USB-powered audio accessories and low-voltage IoT sensors-not rated for >85°C operation. | Prefer for cost-sensitive consumer audio; reject if extended temperature (-40°C to +85°C) or low-charge-injection (<5pC) is mandatory. |
Compared with ADG1221BRMZ-REEL7 and TS5A23157DCUR, the MAX323EUA+T uniquely balances ultra-low leakage (100pA), precision RON matching (<2Ω), and extended temperature support in a miniature µMAX package-making it the optimal choice for military-grade portable instrumentation where signal fidelity and reliability are non-negotiable.
Availability
MAX323EUA+T is available at Aetrix Electronics and suitable for battery-operated instrumentation, audio signal routing, guidance system sensor interfaces, and automated test equipment requiring stable component supply across extended temperature ranges.
Supply support for MAX323EUA+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX323 series belongs to Analog Devices' precision analog switch product line, engineered specifically for low-leakage, low-distortion signal routing in mission-critical portable and military-grade systems.
FAQ
What is the operating temperature range for MAX323EUA+T?
The MAX323EUA+T is specified for operation from -40°C to +85°C, validated across this full industrial temperature range per the manufacturer's electrical characteristics tables. This extended grade supports deployment in harsh environments such as avionics subsystems and outdoor test equipment where ambient temperatures fluctuate widely. All key parameters-including leakage current, RON, and switching speed-are guaranteed within these limits, and the µMAX package provides thermal performance consistent with the datasheet derating curves.
Does MAX323EUA+T support dual-supply operation?
No, MAX323EUA+T is strictly a single-supply device, rated for +2.7V to +16V operation referenced to GND. It does not support split-rail (e.g., ±5V) configurations. For dual-supply alternatives, Analog Devices specifies the MAX320/MAX321/MAX322 family-distinct ICs with separate part numbers and different pinouts. Attempting to bias MAX323EUA+T with negative rails violates its absolute maximum ratings and may cause permanent damage.
What is the maximum analog signal voltage that can be switched by MAX323EUA+T?
The MAX323EUA+T supports analog signals from 0V to V+, meaning the full range equals the positive supply voltage applied to pin 8 (V+). For example, with V+ = 5V, the switch handles 0V to 5V signals; with V+ = 12V, it handles 0V to 12V. Exceeding V+ or going below GND risks diode clamping and potential damage-absolute maximum analog pin voltage is V+ + 0.3V, per the datasheet's Absolute Maximum Ratings table.
Is MAX323EUA+T pin-compatible with other MAX32x variants like MAX324EUA+T?
No, MAX323EUA+T is not pin-compatible with MAX324EUA+T or MAX325EUA+T. Although all three share the same 8-pin µMAX footprint and pin numbering, their internal switch configurations differ: MAX323 has two NO switches, MAX324 has two NC switches, and MAX325 has one NO + one NC. Swapping them without redesigning logic control and signal routing will result in inverted or unintended switching behavior-verified by comparing truth tables and functional diagrams in the datasheet.
What is the typical on-resistance flatness specification for MAX323EUA+T?
The MAX323EUA+T guarantees on-resistance flatness (RFLAT(ON)) of ≤6Ω maximum at +25°C and ≤8Ω maximum over the full -40°C to +85°C temperature range, measured across the 0V to V+ analog signal span. This tight flatness ensures minimal variation in gain and THD across the signal range-critical for high-fidelity audio and precision data acquisition. The value is confirmed in the Electrical Characteristics table under "Analog Switch" parameters with V+ = 5V, ICOM = 1.0mA, and VNO/VNC swept from 1V to 3V.
MAX323EUA+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):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 16V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- 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
MAX323EUA+T FAQ
1.How can I place an order for MAX323EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX323EUA+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 MAX323EUA+T reliable?
The price and inventory of MAX323EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX323EUA+T is usually 5 days.
3.What payment methods are accepted for MAX323EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX323EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX323EUA+T?
MAX323EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX323EUA+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 MAX323EUA+T?
For technical support, including MAX323EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX323EUA+T requirements.
6.How does Aetrix verify that MAX323EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX323EUA+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 MAX323EUA+T meets industry standards.
7.What is the process for return or replacement of MAX323EUA+T?
All MAX323EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX323EUA+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 MAX323EUA+T part is unused and in its original packaging.
Return procedure for MAX323EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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