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Analog Devices Inc./Maxim Integrated MAX323ESA+T
- Part No.:
- MAX323ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX323ESA+T.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
MAX323ESA+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 matching, and 150ns max turn-on time, enabling high-fidelity signal routing in battery-powered instrumentation and audio/video systems.
For engineers reviewing the MAX323ESA+T datasheet, MAX323ESA+T pinout, MAX323ESA+T application, or MAX323ESA+T equivalent, key selection criteria include guaranteed RON flatness (<6Ω), 100pA max leakage at +85°C, TTL/CMOS logic compatibility, and SO-8 package thermal performance across -40°C to +85°C.
Technical Context
The MAX323ESA+T implements CMOS transmission-gate architecture with rail-to-rail analog signal handling (0V to V+), supporting bidirectional switching without polarity constraints. Its logic inputs accept TTL-compatible thresholds at +5V supply and scale linearly with V+, requiring rail-to-rail drive at non-5V supplies.
Internal protection diodes clamp input signals beyond V+ or GND, enabling robust overvoltage tolerance up to ±8V with external diode configuration. Charge injection is tightly controlled at ≤5pC, minimizing transient errors in sample-and-hold and precision DAC/ADC interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +16V single supply - enables direct integration with 3.3V, 5V, and 12V systems without level-shifting. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and gain error in precision sensor and audio paths. |
| RON Matching | <2Ω between channels - critical for differential signal integrity and matched filter banks. |
| Turn-On Time (tON) | 150ns max - supports multiplexing of fast-sampling ADCs and real-time test equipment waveforms. |
| Leakage Current | 100pA max at +25°C, 5nA max at +85°C - preserves accuracy in high-impedance sensor front-ends and battery-monitoring circuits. |
| Charge Injection | 5pC max - reduces settling error in sample-and-hold stages and precision data acquisition. |
| ESD Rating | 2000V per Method 3015.7 - provides inherent handling robustness during assembly and field service. |
Pinout & Package
MAX323ESA+T is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch, 5.0mm × 4.0mm body, and RoHS-compliant lead finish. The package supports reflow soldering per JEDEC J-STD-020 and offers 471mW power dissipation at +70°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Normally open analog terminal for Channel 1 - connects to COM1 only when IN1 = logic high. |
| 2 | COM1 | Common analog node for Channel 1 - bidirectional path between NO1 and internal switch. |
| 3 | IN2 | Logic control input for Channel 2 - TTL/CMOS compatible; high enables NO2–COM2 connection. |
| 4 | GND | Analog and digital ground reference - must be low-impedance return for signal integrity and ESD path. |
| 5 | NO2 | Normally open analog terminal for Channel 2 - connects to COM2 only when IN2 = logic high. |
| 6 | COM2 | Common analog node for Channel 2 - bidirectional path between NO2 and internal switch. |
| 7 | IN1 | Logic control input for Channel 1 - referenced to GND; low = open, high = closed (NO configuration). |
| 8 | V+ | Positive supply rail - powers analog switches and logic interface; absolute max 17V. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NO configuration | Two independent normally open switches - simplifies design of redundant signal paths and enable-controlled routing. |
| Low RON flatness | <6Ω variation across full analog range - maintains consistent gain and linearity in variable-gain amplifiers and programmable filters. |
| TTL/CMOS logic compatibility | Validated at +5V supply - eliminates need for external level shifters in microcontroller-driven systems. |
| Ultra-low power consumption | <5μW quiescent - extends battery life in portable medical monitors and handheld test gear. |
| Bidirectional analog operation | Signal flow direction agnostic - supports shared bus architectures and reverse-signal diagnostics. |
Applications
| Battery-Operated Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end switching between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling calibrated signal path selection under microcontroller control. Use Value: 60Ω max RON and <2Ω matching preserve measurement accuracy across ranges; 5μW power draw extends 100+ hour battery life. | Use Scenario: Headphone amplifier output stage selecting between stereo sources (DAC, Bluetooth, FM radio). IC Role / Device Role / Timing Role: Low-distortion analog switch isolating competing audio sources before amplification. Use Value: 5pC max charge injection prevents audible pop/click during source switching; 150ns tON enables glitch-free transitions. |
| Test Equipment Multiplexing | Guidance System Signal Conditioning |
Use Scenario: Automated test equipment routing DUT signals to multiple measurement instruments (oscilloscope, spectrum analyzer, DMM). IC Role / Device Role / Timing Role: High-speed, low-leakage analog switch matrix managing signal integrity across 100+ channel configurations. Use Value: 100pA max leakage prevents DC offset drift in high-impedance probe circuits; 2000V ESD rating withstands lab handling stress. | Use Scenario: Inertial measurement unit (IMU) conditioning analog outputs from gyros and accelerometers before ADC sampling. IC Role / Device Role / Timing Role: Precision signal gate protecting ADC inputs from out-of-range transients during vehicle startup/shutdown. Use Value: Rail-to-rail analog range (0V to V+) accommodates full sensor output swing; -40°C to +85°C rating matches automotive under-hood requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX323CSA+ | Same electrical specs but 0°C to +70°C temperature range - lacks extended industrial grade rating. | Suitable for commercial-grade consumer electronics, not automotive or industrial environments. | Select MAX323CSA+ only if operating ambient stays within 0°C–70°C and cost sensitivity outweighs reliability margin. |
| ADG1419BRMZ | Single-supply capable (±15V dual or +3.3V/+5V single), 0.7Ω typical RON, but higher 12μA I+ and no guaranteed RON matching spec. | Better for ultra-low RON needs in precision instrumentation, less ideal for matched-channel applications. | Choose ADG1419BRMZ when sub-1Ω on-resistance is mandatory and channel matching is secondary. |
Compared with MAX323CSA+, the MAX323ESA+T adds -40°C to +85°C operation and tighter thermal leakage control; versus ADG1419BRMZ, it trades lower RON for guaranteed matching, lower power, and proven robustness in battery-constrained designs.
Availability
MAX323ESA+T is available at Aetrix Electronics and suitable for battery-operated instrumentation, audio signal routing, and test equipment requiring stable component supply across extended temperature ranges.
Supply support for MAX323ESA+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 for low-leakage, low-distortion signal routing in portable and mission-critical systems where power efficiency and thermal stability are paramount.
FAQ
What is the maximum analog signal voltage range supported by the MAX323ESA+T?
The MAX323ESA+T supports analog signals from 0V to V+ across its NO, NC, and COM terminals. With a +5V supply, this yields a 0V to +5V range; with +12V, it supports 0V to +12V. This rail-to-rail capability ensures minimal distortion in sensor interfaces and audio paths without external biasing.
Does the MAX323ESA+T require external protection diodes for overvoltage tolerance?
The MAX323ESA+T includes internal clamping diodes that protect against signals exceeding V+ or GND. For fault voltages up to ±8V with a +5V supply, no external diodes are needed. However, if analog signals may exceed the absolute maximum rating of +17V or dip below -12V, external diodes (as shown in Figure 1 of the datasheet) are recommended to prevent permanent damage.
How does the MAX323ESA+T ensure channel-to-channel matching in precision applications?
The MAX323ESA+T guarantees ΔRON <2Ω between its two NO channels at +25°C and <4Ω over the full -40°C to +85°C range. This matching is achieved through matched transistor geometry and laser-trimmed process control, directly supporting differential signal integrity in instrumentation amplifiers and balanced filter networks.
Can the MAX323ESA+T operate with a 3.3V logic interface while powered from a 5V analog supply?
Yes - the MAX323ESA+T accepts logic inputs referenced to GND, with VINL ≤ 0.8V and VINH ≥ 2.4V. When V+ = 5V, driving IN1/IN2 from a 3.3V microcontroller meets these thresholds. For best noise immunity, drive inputs rail-to-rail (0V/3.3V), as specified in the Applications Information section.
What is the thermal derating behavior of the MAX323ESA+T in its SO-8 package?
The MAX323ESA+T in SO-8 has a thermal derating coefficient of 5.88mW/°C above +70°C, resulting in 471mW maximum continuous power dissipation at +70°C ambient. At +85°C ambient, allowable dissipation drops to 383mW. This derating ensures safe operation in enclosed industrial enclosures without forced airflow.
MAX323ESA+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-SOIC
MAX323ESA+T FAQ
1.How can I place an order for MAX323ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX323ESA+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 MAX323ESA+T reliable?
The price and inventory of MAX323ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX323ESA+T is usually 5 days.
3.What payment methods are accepted for MAX323ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX323ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX323ESA+T?
MAX323ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX323ESA+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 MAX323ESA+T?
For technical support, including MAX323ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX323ESA+T requirements.
6.How does Aetrix verify that MAX323ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX323ESA+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 MAX323ESA+T meets industry standards.
7.What is the process for return or replacement of MAX323ESA+T?
All MAX323ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX323ESA+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 MAX323ESA+T part is unused and in its original packaging.
Return procedure for MAX323ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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