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Analog Devices Inc./Maxim Integrated MAX319CPA+
- Part No.:
- MAX319CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX319CPA+.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
MAX319CPA+ from Maxim Integrated is a precision SPDT CMOS analog switch with one normally open (NO) and one normally closed (NC) channel, designed for rail-to-rail signal routing in precision instrumentation and military-grade systems. It delivers <35Ω max on-resistance, <10pC charge injection, <6nA off-leakage at +85°C, and 175ns max turn-on time under ±15V dual supply. Its 8-pin plastic DIP package supports sample-and-hold circuits and guidance control interfaces.
For engineers reviewing the MAX319CPA+ datasheet, MAX319CPA+ pinout, MAX319CPA+ application, or MAX319CPA+ equivalent, key selection criteria include guaranteed on-resistance matching (<2Ω), break-before-make timing (5–13ns), bipolar/single-supply flexibility (+10V to +30V or ±4.5V to ±20V), and ±2000V ESD robustness - all critical for low-distortion signal switching in battery-powered and high-reliability systems.
Technical Context
The MAX319CPA+ implements a complementary MOSFET-based SPDT architecture with independent NO and NC paths controlled by a single TTL/CMOS-compatible logic input. Its silicon-gate process ensures flat on-resistance (∆3Ω max) over full analog signal range (±15V) and minimal charge injection (10pC typ) - essential for maintaining integrity in sample-and-hold and multiplexed data acquisition.
It operates across dual supplies (±4.5V to ±20V) or single supply (+10V to +30V), with V− tied to GND in unipolar mode. Logic-level translation is supported via dedicated VL pin, enabling direct interface with 3.3V or 5V controllers while maintaining full analog swing capability up to ±15.5V on COM/NO/NC terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On Resistance | <35Ω max - ensures minimal voltage drop and signal attenuation in precision analog paths |
| On-Resistance Match | <2Ω between NO/NC channels - enables matched gain/phase response in differential or redundant switching |
| Charge Injection | <10pC - reduces sampling error and settling time in high-resolution ADC front-ends |
| Off-Leakage Current | <6nA at +85°C - preserves signal integrity in high-impedance sensor interfaces and long-hold applications |
| Turn-On/Off Time | 175ns / 145ns max - supports >5MHz switching rates in real-time control and test equipment |
| Analog Signal Range | ±15.5V - allows rail-to-rail operation with ±15V supplies, compatible with industrial op-amp rails |
| ESD Rating | >±2000V HBM - provides robust handling during board assembly and field maintenance |
Pinout & Package
MAX319CPA+ uses an 8-pin plastic DIP (0.300″ wide) package with through-hole mounting. Pin functions are validated per Maxim's official pin description table and functional diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common terminal - connects to signal source or load; shared path for NO/NC switching |
| 2 | N.C. | No connect - internally unconnected; must be left floating or grounded per layout guidelines |
| 3 | GND | Digital logic ground reference - separate from analog supply grounds to minimize noise coupling |
| 4 | V+ | Positive analog supply - sets upper analog rail; supports up to +44V absolute max |
| 5 | VL | Logic supply input - accepts 3V–5.25V to ensure TTL/CMOS compatibility independent of V+/V− |
| 6 | IN | Control logic input - active-high; switches NO closed/NC open when high (2.4V min) |
| 7 | V− | Negative analog supply - sets lower analog rail; supports down to −44V absolute max |
| 8 | NC | Normally closed analog terminal - conducts to COM when IN = low; complements NO path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog handling | Supports ±15.5V signal swing with ±15V supplies - eliminates level-shifting in mixed-signal systems |
| Break-before-make timing | 5–13ns guaranteed - prevents momentary shorting between NO and NC paths during transition |
| Matched on-resistance | <2Ω channel-to-channel variation - enables precise ratio-metric signal routing in calibration circuits |
| Low power consumption | 35µW typical - extends battery life in portable test gear and remote sensors |
| Single/dual supply operation | Configurable for +10V–+30V or ±4.5V–±20V - simplifies power architecture in legacy and new designs |
Applications
| Sample-and-Hold Circuits | Guidance and Control Systems |
|---|---|
Use Scenario: Capturing transient analog signals from inertial sensors before ADC conversion in aerospace avionics. IC Role / Device Role / Timing Role: Precision SPDT switch selects hold capacitor connection path with sub-10pC charge injection to minimize droop and aperture error. Use Value: Enables 16-bit effective resolution by limiting sampling distortion below 0.001% FS, verified at +85°C. | Use Scenario: Routing feedback signals between gyroscope outputs and flight controller inputs in UAV stabilization loops. IC Role / Device Role / Timing Role: Dual-path analog switch provides fail-safe redundancy: NC path maintains baseline control while NO path engages correction signals. Use Value: Break-before-make timing prevents signal contention; ±2000V ESD withstand protects against airborne static discharge events. |
| Heads-Up Displays (HUD) | Military Radios |
Use Scenario: Multiplexing video sync pulses and brightness control voltages to multiple display drivers in cockpit HUD units. IC Role / Device Role / Timing Role: SPDT switch toggles between primary and backup video sources using logic-controlled NO/NC paths. Use Value: Flat on-resistance (∆3Ω max) ensures consistent pulse amplitude across temperature, preserving timing margins in 60Hz video frame sync. | Use Scenario: Isolating RF front-end receive paths from baseband processing stages during transmit/receive switching in SDR transceivers. IC Role / Device Role / Timing Role: Analog switch gates low-level IF signals with minimal added noise and leakage-induced DC offset. Use Value: <6nA off-leakage at +85°C prevents baseline drift in sensitive AGC circuits; 68dB off-isolation suppresses crosstalk at 1MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRZ | SPDT, 0.9Ω RON, but only ±15V max supply; no guaranteed break-before-make spec | Better for low-RON audio routing; unsuitable for high-voltage industrial signal conditioning | Select ADG1419BRZ only if RON <1Ω is mandatory and supply stays ≤±15V |
| TS5A23157DCUR | SPDT, 0.9Ω RON, 5V-only supply, 1.5pC charge injection - but rated only to +85°C, no MIL-temp variants | Ideal for consumer-grade portable instruments; lacks extended temp range and ESD robustness | Choose TS5A23157DCUR for cost-sensitive, non-military designs requiring ultra-low charge injection |
Compared with ADG1419BRZ and TS5A23157DCUR, MAX319CPA+ uniquely combines extended temperature support (0°C to +70°C), ±2000V ESD rating, guaranteed break-before-make timing, and rail-to-rail ±15.5V analog operation - making it the only option qualified for military radio and guidance system signal routing where reliability trumps raw RON specs.
Availability
MAX319CPA+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, guidance and control systems, and military radios requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX319CPA+ 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 and mixed-signal ICs for industrial, communications, and defense applications.
The MAX317/MAX318/MAX319 family was engineered for precision analog signal routing in harsh environments - emphasizing low charge injection, matched on-resistance, and robust ESD tolerance for military and aerospace signal conditioning.
FAQ
What is the maximum allowable analog signal voltage range for MAX319CPA+?
The MAX319CPA+ supports an analog signal range of ±15.5V when operated with ±16.5V supplies, and up to ±12.5V with ±15V supplies. This rail-to-rail capability is guaranteed per the Absolute Maximum Ratings table and confirmed in Electrical Characteristics sections for both dual- and single-supply configurations. The device's 44V breakdown voltage ensures safe operation within these limits without clipping or latch-up.
Does MAX319CPA+ require separate logic and analog ground connections?
No - MAX319CPA+ uses a single GND pin (Pin 3) for logic reference, but best practice requires separating digital and analog ground planes with a single-point connection near the device. The VL pin (Pin 5) is referenced to this GND, while V+ and V− establish independent analog supply rails. Layout guidelines in the datasheet emphasize minimizing ground bounce by routing GND directly to a low-impedance plane.
Can MAX319CPA+ operate from a single +12V supply?
Yes - MAX319CPA+ supports single-supply operation from +10V to +30V. When using +12V, tie V− to GND (Pin 3), set VL to +5V for TTL compatibility, and route the analog signal between 0V and +12V. Electrical Characteristics tables confirm RON ≤100Ω and tON ≤110ns under these conditions, though on-resistance flatness and matching are specified only for bipolar operation.
What is the guaranteed break-before-make interval for MAX319CPA+?
The MAX319CPA+ guarantees a break-before-make interval (tD) of 5ns minimum to 13ns maximum at +25°C with ±15V supplies and ±10V analog signals. This parameter is explicitly tested and specified in the Dynamic section of the datasheet (Figure 4 test circuit). At temperature extremes (−40°C to +85°C), the interval remains within 60ns under single-supply conditions per the Single-Supply Characteristics table.
Is MAX319CPA+ pin-compatible with other devices in the MAX317/MAX318/MAX319 family?
Yes - MAX319CPA+ shares identical pinout and package (8-pin plastic DIP) with MAX317CPA+ and MAX318CPA+, differing only in internal switch configuration (SPDT vs. SPST-NC vs. SPST-NO). All three accept the same supply ranges, logic levels, and thermal profiles. This allows direct substitution in layouts where NO/NC functionality is reconfigured via firmware or external logic, provided signal routing matches the selected variant's terminal assignments.
MAX319CPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- 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-PDIP
MAX319CPA+ FAQ
1.How can I place an order for MAX319CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX319CPA+ 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 MAX319CPA+ reliable?
The price and inventory of MAX319CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX319CPA+ is usually 5 days.
3.What payment methods are accepted for MAX319CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX319CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX319CPA+?
MAX319CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX319CPA+ 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 MAX319CPA+?
For technical support, including MAX319CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX319CPA+ requirements.
6.How does Aetrix verify that MAX319CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX319CPA+ 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 MAX319CPA+ meets industry standards.
7.What is the process for return or replacement of MAX319CPA+?
All MAX319CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX319CPA+, 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 MAX319CPA+ part is unused and in its original packaging.
Return procedure for MAX319CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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