Analog Devices Inc./Maxim Integrated MAX318CJA
- Part No.:
- MAX318CJA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
MAX318CJA.pdf
- Description:
- IC SW SPSTX1 35OHM 8CERDIP
- Quantity:
- Payment:

- Shipping:

Inventory:530
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Product details
Overview
MAX318CJA from Maxim Integrated is a precision CMOS single-pole single-throw (SPST) analog switch with normally open (NO) configuration, designed for rail-to-rail signal routing in high-fidelity sample-and-hold and test equipment circuits. It delivers <35Ω maximum on-resistance, <10pC charge injection, <6nA off-leakage at +85°C, and 175ns turn-on time under ±15V dual-supply operation.
For engineers reviewing the MAX318CJA datasheet, MAX318CJA pinout, MAX318CJA application, or MAX318CJA equivalent, key selection criteria include guaranteed matched on-resistance (<2Ω), flat on-resistance over signal range (∆3Ω max), ESD tolerance >±2000V, and CERDIP-8 packaging for extended temperature stability in military and avionics systems.
Technical Context
The MAX318CJA implements a silicon-gate CMOS transmission gate architecture optimized for low distortion and minimal signal-dependent resistance variation. Its bipolar supply support (±4.5V to ±20V) enables true rail-to-rail analog handling up to ±15V, while TTL/CMOS-compatible logic inputs (VL referenced) decouple control voltage from analog rails.
Charge injection is actively minimized via balanced transistor sizing and layout symmetry, yielding ≤10pC across the full analog range. Off-isolation exceeds 68dB at 1MHz, and break-before-make timing is not applicable-consistent with its SPST NO topology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal signal attenuation and gain error in precision signal paths |
| On Resistance Match | <2Ω between channels - critical for matched-pair applications like differential switching |
| Charge Injection | <10pC - limits voltage glitch in sample-and-hold capacitors, preserving acquisition accuracy |
| Off-Leakage Current | <6nA at +85°C - maintains high-impedance isolation in battery-powered or high-Z sensor interfaces |
| Turn-On Time | <175ns - supports >5MHz switching rates in automated test equipment and comms channel selection |
| ESD Rating | >±2000V HBM - enables robust handling during board assembly and field maintenance |
| Analog Signal Range | ±15V (bipolar), 0–12V (single-supply) - accommodates industrial sensor outputs and audio line levels |
Pinout & Package
MAX318CJA is housed in an 8-pin CERDIP package (0.300″ wide), rated for 0°C to +70°C operation, with hermetic sealing and gold-plated leads suitable for high-reliability military and aerospace applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog-switch common terminal - connects to load or signal path requiring controlled connection |
| 2 | N.C. | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
| 3 | GND | Logic ground reference - provides return path for VL and digital input signals |
| 4 | V+ | Analog positive supply - sets upper rail of analog signal range; supports up to +44V absolute max |
| 5 | VL | Logic-level supply - powers internal gate drivers; compatible with 5V TTL or CMOS logic |
| 6 | IN | Digital control input - active-high logic controls NO switch state (ON when IN = high) |
| 7 | V- | Analog negative supply - sets lower rail of analog signal range; supports down to –44V absolute min |
| 8 | NO | Normally open analog terminal - connects to COM only when IN is asserted high |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog handling | Supports ±15V analog signals with no clipping or distortion, enabling direct interfacing with op-amp outputs and sensor bridges |
| Guaranteed flat on-resistance | ∆3Ω max over full analog range ensures consistent gain and linearity in precision instrumentation front-ends |
| Low power consumption | 35µW typical supply current allows integration into always-on battery-powered subsystems without thermal penalty |
| Bipolar and single-supply operation | Operates from ±4.5V to ±20V or +10V to +30V - simplifies system power architecture in mixed-signal designs |
| TTL/CMOS logic compatibility | Accepts standard 0.8V/2.4V logic thresholds independent of V+/V−, eliminating level-shifter requirements |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
|
Use Scenario: Capturing fast transient waveforms in automated test systems with sub-microsecond aperture time requirements. IC Role / Device Role / Timing Role: Precision SPST switch controlling hold capacitor charging path; low charge injection prevents pedestal error. Use Value: ≤10pC charge injection and <175ns tON enable accurate sampling of 5+ MHz signals without droop or settling artifacts. |
Use Scenario: Signal routing in modular ATE platforms where multiple DUTs share analog stimulus and measurement resources. IC Role / Device Role / Timing Role: High-isolation analog multiplexer element selecting between calibration references and device-under-test nodes. Use Value: 68dB off-isolation and <6nA leakage preserve measurement integrity across 100dB dynamic range test setups. |
| Military Radios | Battery-Powered Systems |
|
Use Scenario: Antenna diversity switching and RF front-end protection in manpack and vehicular radios operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Low-distortion signal path selector isolating sensitive receiver inputs from transmit bursts. Use Value: Hermetic CERDIP-8 packaging and >±2000V ESD rating ensure survivability in harsh electromagnetic and handling environments. |
Use Scenario: Power management and sensor signal conditioning in portable medical monitors and handheld diagnostics tools. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling ultra-low-power sleep modes while maintaining sensor bias integrity. Use Value: <6nA off-leakage at +85°C and 35µW quiescent power extend battery life in multi-day continuous monitoring applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | Single SPST NO, 1.8Ω typical RON, but requires ≥±5V supplies and lacks CERDIP packaging | Better RON match but limited to commercial temp range (–40°C to +125°C); no MIL-qualified variants available | Preferred for cost-sensitive industrial designs where hermeticity and military temp grade are not required |
| TS5A23157DCUR | SPST NO, 0.9Ω RON, 5V-only single-supply operation, 1.2pC charge injection, SOT-23-6 package | Optimized for low-voltage portable electronics; incompatible with bipolar supplies or ±15V signal ranges | Suitable for consumer-grade battery systems but cannot replace MAX318CJA in rail-to-rail or high-temp military use cases |
Compared with ADG1419BRMZ and TS5A23157DCUR, the MAX318CJA uniquely combines CERDIP-8 hermetic reliability, guaranteed ±15V rail-to-rail operation, and military-grade temperature range in a single SPST NO configuration-making it irreplaceable in avionics signal routing and defense electronics where long-term parametric stability is non-negotiable.
Availability
MAX318CJA is available at Aetrix Electronics and suitable for military radios, sample-and-hold circuits, and battery-powered systems requiring stable component supply across extended temperature and lifecycle demands.
Supply support for MAX318CJA 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX317/MAX318/MAX319 family was engineered specifically for precision analog signal routing in high-reliability systems-emphasizing low distortion, guaranteed matching, and robust operation across military temperature ranges.
FAQ
What is the maximum analog signal voltage range supported by the MAX318CJA?
The MAX318CJA supports a bipolar analog signal range of ±15V when operated with ±15V supplies, and a single-supply range of 0V to +12V with V− tied to GND. Absolute maximum ratings allow V+ up to +44V and V− down to –44V, but functional analog range remains constrained by supply voltages applied to V+ and V−. The MAX318CJA maintains rail-to-rail capability within these bounds.
Does the MAX318CJA require external pull-up or pull-down resistors on the IN pin?
No, the MAX318CJA features TTL/CMOS-compatible logic inputs with guaranteed recognition of 0.8V low and 2.4V high thresholds-no external biasing is needed. Input leakage is ±0.5µA max, allowing direct connection to microcontroller GPIOs or FPGA I/O banks. The MAX318CJA operates reliably without pull resistors across its full temperature range.
Can the MAX318CJA be used with unbalanced supplies such as +24V and –5V?
Yes, the MAX318CJA supports unbalanced supplies including +24V/V− configurations, provided the difference between V+ and V− does not exceed +44V and each supply remains within absolute maximum ratings. Analog signal range adjusts accordingly-for example, with V+ = +24V and V− = –5V, the usable range is approximately –5V to +24V. The MAX318CJA retains specified performance under such conditions.
What is the significance of the "CJA" suffix in MAX318CJA?
The "CJA" suffix denotes a CERDIP-8 package with 0°C to +70°C operating temperature range and military-grade ceramic hermetic construction. Unlike plastic DIP (CPA) or SO (CSA) variants, the CJA version offers superior moisture resistance, thermal stability, and long-term parameter retention-critical for aerospace, defense, and downhole applications. The MAX318CJA is qualified per MIL-STD-883 methods when requested.
How does charge injection in the MAX318CJA affect sample-and-hold circuit accuracy?
Charge injection in the MAX318CJA is guaranteed ≤10pC, directly translating to voltage error on hold capacitors: ΔV = Q/CHOLD. For a 100pF hold capacitor, this yields ≤100mV error-well within 12-bit resolution. Layout best practices (minimizing stray capacitance, symmetric routing) further suppress error. The MAX318CJA's low, tightly specified charge injection makes it suitable for 14-bit+ data acquisition systems.
MAX318CJA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - Open
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CERDIP
MAX318CJA FAQ
1.How can I place an order for MAX318CJA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX318CJA 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 MAX318CJA reliable?
The price and inventory of MAX318CJA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX318CJA is usually 5 days.
3.What payment methods are accepted for MAX318CJA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX318CJA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX318CJA?
MAX318CJA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX318CJA 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 MAX318CJA?
For technical support, including MAX318CJA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX318CJA requirements.
6.How does Aetrix verify that MAX318CJA is sourced from the original manufacturer or authorized distributors?
All MAX318CJA 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 MAX318CJA meets industry standards.
7.What is the process for return or replacement of MAX318CJA?
All MAX318CJA units undergo pre-shipment inspection (PSI). If there is an issue with MAX318CJA, 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 MAX318CJA part is unused and in its original packaging.
Return procedure for MAX318CJA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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