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Analog Devices Inc./Maxim Integrated MAX324ESA+
- Part No.:
- MAX324ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX324ESA+.pdf
- Description:
- IC SWITCH SPST-NCX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,024
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Product details
Overview
MAX324ESA+ from Analog Devices is a precision dual SPST analog switch with normally closed (NC) configuration, designed for single-supply operation from +2.7V to +16V. It delivers 60Ω max on-resistance, <5pC charge injection, 100ns max turn-off time, and operates across –40°C to +85°C in an 8-pin SO package-ideal for audio/video routing in portable instrumentation.
For engineers reviewing the MAX324ESA+ datasheet, MAX324ESA+ pinout, MAX324ESA+ application, or MAX324ESA+ equivalent, key selection criteria include NC-switch topology, low leakage (<2.5nA at +85°C), guaranteed break-before-make timing (not applicable-MAX325 only), and SO-8 thermal performance under battery-powered bias conditions.
Technical Context
The MAX324ESA+ implements two independent NC analog switches using CMOS transmission-gate architecture with rail-to-rail analog signal handling (0V to V+). Its logic inputs are TTL/CMOS-compatible at +5V supply but require rail-to-rail drive at other voltages to minimize power consumption and ensure reliable switching.
Each channel features matched on-resistance (ΔRON ≤ 2Ω typ at +25°C), flat RON vs. VCOM profile (<6Ω max variation), and bidirectional signal flow-enabling use as either input or output terminals (COM, NC) without polarity constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 60Ω max at +25°C, 75Ω max over full temperature range-ensures minimal signal attenuation in precision sensor or DAC/ADC signal paths. |
| RON Matching | <2Ω max between channels-critical for differential signal integrity and matched gain paths in instrumentation front-ends. |
| Charge Injection | <5pC max-reduces voltage glitch in sample-and-hold and multiplexed data acquisition systems. |
| Turn-Off Time (tOFF) | 100ns max at +25°C, 150ns max over temperature-supports high-speed channel switching in test equipment and comms systems. |
| Leakage Current | <2.5nA at +85°C-preserves accuracy in high-impedance sensor interfaces and battery-backed memory circuits. |
| Supply Range | +2.7V to +16V single supply-enables direct integration with 3.3V, 5V, and 12V industrial rails without level-shifting. |
| ESD Rating | >2000V per Method 3015.7-provides robust handling during PCB assembly and field service in rugged environments. |
Pinout & Package
MAX324ESA+ is housed in an 8-pin Small Outline (SO) package with standard 1.27mm pitch, JEDEC MS-012AC compliant footprint, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC1 | Normally closed analog terminal for Switch 1-connects to COM1 when IN1 = logic low. |
| 2 | COM1 | Common analog node for Switch 1-bidirectional path between NC1 and external circuitry. |
| 3 | IN2 | Logic control input for Switch 2-TTL/CMOS compatible at +5V; requires rail-to-rail drive at other supplies. |
| 4 | GND | Analog and digital ground reference-must be low-impedance connection to minimize noise coupling. |
| 5 | NC2 | Normally closed analog terminal for Switch 2-connects to COM2 when IN2 = logic low. |
| 6 | COM2 | Common analog node for Switch 2-supports independent routing of two analog signals. |
| 7 | IN1 | Logic control input for Switch 1-active-low control enables NC closure; inverted logic sense relative to MAX323. |
| 8 | V+ | Positive supply rail-must be applied before analog or logic signals to prevent latch-up or ESD damage. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NC topology | Provides fail-safe closed-path behavior during power loss or logic fault-essential for safety-critical signal hold applications. |
| Low 5μW power consumption | Enables multi-year battery life in portable medical monitors and handheld test gear without compromising switching speed. |
| Guaranteed 2000V ESD | Eliminates need for external protection diodes in field-deployable equipment, reducing BOM count and board area. |
| 6Ω max RON flatness | Maintains consistent gain and linearity across full analog signal range (0V to V+), critical for ±10-bit accuracy in data converters. |
| TTL/CMOS logic compatibility | Direct interface with microcontroller GPIOs at +5V supply-no external level shifters required in legacy industrial control designs. |
Applications
| Audio and Video Switching | Battery-Operated Systems |
|---|---|
Use Scenario: Routing stereo audio channels or composite video signals between multiple sources and displays in portable media players. IC Role / Device Role / Timing Role: Dual NC analog switch providing silent mute-on-power-loss behavior and low crosstalk (<85dB) between channels. Use Value: Prevents pop/click artifacts during source switching and ensures uninterrupted signal continuity during brownout events. | Use Scenario: Signal conditioning and multiplexing in handheld multimeters and portable oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensor inputs while maintaining <2.5nA off-state current at +85°C. Use Value: Extends battery runtime beyond 500 hours and preserves measurement accuracy in thermocouple or pH probe interfaces. |
| Test Equipment | +3V, +5V DACs and ADCs |
Use Scenario: Automated signal path selection in benchtop function generators and programmable load controllers. IC Role / Device Role / Timing Role: Precision SPST switch enabling <150ns channel reconfiguration and <5pC charge injection for glitch-free waveform generation. Use Value: Supports 100kSPS automated test sequences without calibration drift or settling errors in feedback loops. | Use Scenario: Channel selection and reference routing in 12-bit SAR ADC subsystems and voltage-output DAC buffers. IC Role / Device Role / Timing Role: Matched on-resistance (<2Ω) dual switch ensuring identical gain error across differential input pairs. Use Value: Achieves <0.01% gain matching between ADC channels-meeting MIL-STD-883 Class B requirements for avionics data loggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX324CSA+ | Same functionality and pinout, but rated for 0°C to +70°C commercial temperature range. | Suitable for non-industrial indoor equipment where ambient temperature stays below +70°C. | Select MAX324CSA+ for cost-sensitive consumer electronics with controlled thermal environments. |
| ADG1419BRMZ | Single-supply +5V to +16.5V operation, 1.5Ω typical RON, but only single-channel NC switch in 10-lead MSOP. | Requires two devices and additional PCB area to replicate dual-channel functionality of MAX324ESA+. | Choose ADG1419BRMZ only when ultra-low on-resistance (<2Ω) is mandatory and layout space allows dual placement. |
Compared with MAX324CSA+, the MAX324ESA+ provides extended temperature support for automotive and industrial deployments; compared with ADG1419BRMZ, it delivers integrated dual-channel operation with proven reliability in military radios and guidance systems-without increasing component count or layout complexity.
Availability
MAX324ESA+ is available at Aetrix Electronics and suitable for battery-operated systems, test equipment, and +3V/+5V DAC/ADC signal routing requiring stable component supply across extended temperature ranges.
Supply support for MAX324ESA+ 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, communications, automotive, and aerospace markets since 1965.
The MAX323/MAX324/MAX325 family was engineered for precision single-supply analog switching in resource-constrained environments-emphasizing low leakage, rail-to-rail signal handling, and robust ESD tolerance without external protection components.
FAQ
What is the maximum analog signal voltage range supported by the MAX324ESA+?
The MAX324ESA+ supports analog signals from 0V to V+ across its NC and COM terminals. When powered from a +5V supply, this corresponds to a 0V to +5V range; at +12V supply, the range extends to 0V to +12V. This rail-to-rail capability enables direct interfacing with sensors, DACs, and ADCs without level-shifting circuitry, and is guaranteed over the full –40°C to +85°C operating temperature range.
Does the MAX324ESA+ support break-before-make switching?
No, the MAX324ESA+ does not support break-before-make switching. That feature is exclusive to the MAX325 variant, which integrates one NO and one NC switch per package with guaranteed timing separation. The MAX324ESA+ contains two independent normally closed switches with no internal timing coordination between channels-making it unsuitable for applications requiring guaranteed isolation during state transitions.
Can the MAX324ESA+ be used with a 3.3V logic supply while operating from a 5V analog rail?
Yes, the MAX324ESA+ can operate with separate logic and analog supplies, but its IN1 and IN2 inputs must be driven rail-to-rail relative to V+. For reliable switching at 5V V+, logic inputs should swing from 0V to 5V-not 0V to 3.3V. Driving inputs with only 3.3V logic levels risks incomplete turn-off and increased leakage; therefore, level translation or direct 5V-compatible GPIOs are required for robust operation.
What is the thermal resistance (θJA) of the MAX324ESA+ in its SO-8 package?
The MAX324ESA+ in the 8-pin SO package has a junction-to-ambient thermal resistance (θJA) of 5.88mW/°C derating above +70°C, corresponding to 471mW maximum continuous power dissipation at +70°C. This value assumes standard JEDEC 2-layer board layout per JESD51-7; actual θJA may improve with enhanced copper pour or thermal vias, but design margin should be based on the specified 471mW limit at maximum ambient temperature.
How does the MAX324ESA+ compare to the MAX323ESA+ in terms of on-resistance matching?
The MAX324ESA+ and MAX323ESA+ share identical on-resistance matching specifications: ΔRON ≤ 2Ω max at +25°C and ≤ 4Ω max over –40°C to +85°C. Both variants use the same die and process technology; the only functional difference lies in switch configuration-MAX323ESA+ provides two normally open (NO) switches, while MAX324ESA+ provides two normally closed (NC) switches-making them functionally complementary rather than performance-differentiated.
MAX324ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- 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
MAX324ESA+ FAQ
1.How can I place an order for MAX324ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX324ESA+ 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 MAX324ESA+ reliable?
The price and inventory of MAX324ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX324ESA+ is usually 5 days.
3.What payment methods are accepted for MAX324ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX324ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX324ESA+?
MAX324ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX324ESA+ 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 MAX324ESA+?
For technical support, including MAX324ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX324ESA+ requirements.
6.How does Aetrix verify that MAX324ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX324ESA+ 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 MAX324ESA+ meets industry standards.
7.What is the process for return or replacement of MAX324ESA+?
All MAX324ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX324ESA+, 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 MAX324ESA+ part is unused and in its original packaging.
Return procedure for MAX324ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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