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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:10,077
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Product details
Overview
MAX324ESA from Maxim Integrated 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, <2Ω channel matching, and <6Ω RON flatness at +5V, with fast switching (tON ≤ 150ns, tOFF ≤ 100ns) and ultra-low leakage (<2.5nA at +85°C), enabling high-accuracy signal routing in battery-powered instrumentation.
For engineers reviewing the MAX324ESA datasheet, MAX324ESA pinout, MAX324ESA application, or MAX324ESA equivalent, this device is selected for low-leakage, low-charge-injection analog switching in precision data acquisition, audio routing, and military-grade test equipment where rail-to-rail analog signal integrity and TTL/CMOS logic compatibility are required.
Technical Context
The MAX324ESA implements two independent NC analog switches in a monolithic CMOS process, with internal level-shifting circuitry enabling TTL/CMOS-compatible logic inputs across its full +2.7V to +16V supply range. Each switch features bidirectional signal paths, guaranteed break-before-make timing only in the MAX325 variant (not applicable here), and ESD robustness exceeding 2000V per Method 3015.7.
Its analog signal range spans 0V to V+, with on-resistance variation tightly controlled over temperature and voltage - 60Ω max at +25°C and +5V, rising to 175Ω max at +3.3V supply. Charge injection is limited to 5pC max, ensuring minimal transient disturbance in sample-and-hold and DAC/ADC interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +16V - supports direct integration into 3.3V, 5V, and 12V systems without level shifters |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal gain error and signal attenuation in precision analog paths |
| RON Matching | <2Ω between channels - critical for matched signal routing in differential or dual-channel systems |
| Charge Injection | 5pC max - limits voltage glitch on hold capacitors in sample-and-hold circuits |
| Leakage Current | <2.5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and long-hold-time applications |
| Switching Speed | tON ≤ 150ns, tOFF ≤ 100ns - enables multiplexing of audio and medium-speed data signals |
| ESD Rating | >2000V per Method 3015.7 - provides robust handling in manufacturing and field environments |
Pinout & Package
MAX324ESA is housed in an 8-pin SO (Small Outline) package, 150-mil width, with standard JEDEC MS-012AC footprint (package code S8-4*), RoHS-compliant lead finish, and operating temperature range of –40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive Supply | Single power rail input; must be applied before analog/logic signals to prevent latch-up |
| IN1, IN2 | Logic Inputs | TTL/CMOS-compatible control lines; drive high to enable NC path, low to disable |
| COM1, COM2 | Analog Common Terminals | Bidirectional signal ports - connect to source or load depending on system topology |
| NC1, NC2 | Normally Closed Analog Outputs | Conduct to COM when logic input is low; open when logic input is high |
| GND | Ground Reference | Return path for supply and logic; must be low-impedance to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual NC Switch Configuration | Enables fail-safe default-closed signal paths in safety-critical or power-loss scenarios |
| Low On-Resistance Flatness | <6Ω variation across 0V–V+ range - maintains consistent gain and linearity in variable-voltage signal chains |
| Ultra-Low Power Consumption | <5µW quiescent - extends battery life in portable medical and handheld test instruments |
| Guaranteed Logic Compatibility | TTL/CMOS thresholds at +5V supply - eliminates need for external level translators in mixed-signal microcontroller interfaces |
| High Off-Isolation | 72dB at 1MHz - suppresses crosstalk between adjacent switched channels in dense PCB layouts |
Applications
| Audio Signal Routing | Sample-and-Hold Circuits |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in portable radios and comms gear. IC Role / Device Role / Timing Role: Dual NC analog switch providing low-distortion, low-leakage signal path selection with no DC offset. Use Value: 60Ω max RON and 5pC max charge injection preserve audio fidelity and prevent pop/click artifacts during switching. |
Use Scenario: Capturing and holding analog sensor outputs prior to ADC conversion in industrial data loggers. IC Role / Device Role / Timing Role: Precision analog gate isolating hold capacitor from source impedance during acquisition phase. Use Value: <2.5nA leakage at +85°C ensures hold time >10 seconds with 1nF capacitor, meeting MIL-STD-810G thermal requirements. |
| Military Radio Front-Ends | +3V/+5V DAC/ADC Interfaces |
Use Scenario: Switching RF receive paths and antenna diversity signals in ruggedized tactical radios operating across –40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability analog switch managing signal routing under wide temperature and ESD stress. Use Value: 2000V ESD rating and –40°C to +85°C qualification ensure uninterrupted operation in field-deployed electronics. |
Use Scenario: Multiplexing reference voltages or sensor inputs to low-power SAR ADCs in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Low-leakage, low-RON switch enabling accurate scaling and calibration of 12-bit+ converters. Use Value: <2Ω RON matching minimizes channel-to-channel gain mismatch, reducing post-processing calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX324EPA | Same electrical specs; packaged in 8-pin plastic DIP instead of SO | Through-hole assembly; larger footprint; lower thermal performance (727mW vs. 471mW) | Select for legacy through-hole designs or prototyping where SO reflow is unavailable |
| ADG1422BRMZ | Higher RON (1.3Ω typ), wider supply (±15V or +12V), but higher leakage (20nA at +85°C) | Supports bipolar signal ranges and higher voltage rails; less suitable for ultra-low-leakage precision hold | Choose when ±15V operation or sub-1Ω RON is prioritized over leakage and charge injection |
Compared with MAX324ESA, MAX324EPA offers identical switching performance in a through-hole package for manual assembly, while ADG1422BRMZ trades ultra-low leakage for broader supply flexibility and lower on-resistance - making MAX324ESA optimal for battery-powered, high-precision, single-supply analog routing.
Availability
MAX324ESA is available at Aetrix Electronics and suitable for battery-operated systems, sample-and-hold circuits, and military radio front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
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
Maxim Integrated (now part of Analog Devices) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX323/MAX324/MAX325 family was engineered specifically for precision, low-leakage, single-supply analog switching in portable and harsh-environment applications - emphasizing rail-to-rail signal handling, minimal charge injection, and guaranteed parametric performance over temperature.
FAQ
What is the maximum supply voltage rating for MAX324ESA?
The MAX324ESA has an absolute maximum supply voltage (V+) of +17V, but its specified operational range is +2.7V to +16V. Exceeding +17V risks permanent damage per Absolute Maximum Ratings. The device is commonly used at +5V and +12V supplies, with on-resistance and switching speed degrading slightly at lower voltages like +3.3V.
Does MAX324ESA support bidirectional analog signal flow?
Yes, MAX324ESA supports fully bidirectional analog signal routing. Its NC1 and NC2 terminals, along with COM1 and COM2, have no intrinsic directionality - either side can serve as input or output. This enables flexible use in signal multiplexing, sensor interfacing, and feedback path switching without polarity constraints.
What is the guaranteed charge injection specification for MAX324ESA?
MAX324ESA guarantees ≤5pC maximum charge injection, measured with CL = 1.0nF, VGEN = 0V, and RGEN = 0Ω per Figure 4 of the datasheet. This low value ensures minimal voltage step on hold capacitors, making MAX324ESA suitable for precision sample-and-hold and switched-capacitor applications where settling error must be minimized.
Is MAX324ESA pin-compatible with MAX323ESA or MAX325ESA?
No, MAX324ESA is not pin-compatible with MAX323ESA or MAX325ESA. Although all three share the same 8-pin SO package and pinout numbering, their internal switch configurations differ: MAX324ESA uses two NC switches, MAX323ESA uses two NO switches, and MAX325ESA combines one NO and one NC. Swapping them requires logic inversion and may cause unintended signal path behavior.
What is the leakage current specification for MAX324ESA at +85°C?
MAX324ESA guarantees total off-leakage current of <2.5nA at +85°C, as specified for COM off-leakage (ICOM(OFF)) and NC off-leakage (INC(OFF)). This value is 100% tested at maximum rated hot temperature and correlated at +25°C, ensuring reliability in high-temperature industrial and military applications where signal integrity depends on minimal parasitic current paths.
MAX324ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- 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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