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Analog Devices Inc./Maxim Integrated MAX319ESA+T
- Part No.:
- MAX319ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX319ESA+T.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,058
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Product details
Overview
MAX319ESA+T from Maxim Integrated is a precision SPDT CMOS analog switch with one normally open (NO) and one normally closed (NC) channel, 45Ω max on-resistance at ±15V supplies, <10pC charge injection, and rail-to-rail analog signal handling up to ±15.5V. It operates across –40°C to +85°C in 8-pin SO package and is used in military radios, test equipment, and guidance systems where low leakage and matched switching are critical.
For engineers reviewing the MAX319ESA+T datasheet, MAX319ESA+T pinout, MAX319ESA+T application, or MAX319ESA+T 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 ESD tolerance >±2000V - all verified under temperature extremes and signal swing conditions.
Technical Context
The MAX319ESA+T implements a monolithic silicon-gate CMOS architecture optimized for precision analog routing. Its SPDT topology features independent NO and NC paths sharing a common COM terminal, with logic-controlled inversion: IN = 0 enables NC, IN = 1 enables NO. Break-before-make operation prevents momentary shorting during transition.
It supports dual-supply operation (±4.5V to ±20V) and single-supply mode (+10V to +30V), with VL referenced to GND and configurable for TTL/CMOS compatibility. Analog signal range extends from V– to V+, limited only by supply rails and absolute maximum ratings - enabling true rail-to-rail signal switching without clipping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT (1 NO + 1 NC), logic-controlled, break-before-make |
| On Resistance (max) | 45Ω at TMIN to TMAX, ±15V supplies - ensures minimal signal attenuation and gain error in precision signal paths |
| On Resistance Match | <2Ω between NO and NC channels at +25°C - critical for differential or ratiometric measurement accuracy |
| Charge Injection | <10pC - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors) |
| Off-Leakage (max) | 10nA at +85°C - preserves integrity of low-current sensor interfaces and battery-powered hold circuits |
| ESD Rating | >±2000V per Method 3015.7 - enables robust handling in manufacturing and field-repair environments |
| Supply Range | Bipolar: ±4.5V to ±20V; Single: +10V to +30V - supports legacy ±15V systems and modern unipolar industrial rails |
Pinout & Package
MAX319ESA+T is housed in an 8-pin SO (Small Outline) package, 3.9mm × 4.9mm body, 1.27mm pitch, JEDEC MS-012 compliant. Pin 1 = COM, Pin 2 = NO, Pin 3 = GND, Pin 4 = V+, Pin 5 = VL, Pin 6 = IN, Pin 7 = V−, Pin 8 = NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Shared I/O node connecting to either NO or NC path; must be routed with controlled impedance in high-frequency applications |
| 2 - NO | Normally open analog terminal | Connects to COM only when IN = HIGH; used for default-open signal routing or active-enable paths |
| 3 - GND | Logic ground reference | Reference for VL and digital input thresholds; must be low-impedance and separated from analog ground if noise-sensitive |
| 4 - V+ | Analog positive supply | Sets upper analog signal limit; must be decoupled locally to suppress supply-induced crosstalk |
| 5 - VL | Logic supply input | Defines logic threshold (TTL/CMOS compatible); tied to V+ for CMOS, +5V for TTL-level control |
| 6 - IN | Digital control input | Inverting logic sense: LOW selects NC, HIGH selects NO; accepts 0.8V/2.4V thresholds |
| 7 - V− | Analog negative supply | Sets lower analog signal limit; connects to 0V in single-supply mode |
| 8 - NC | Normally closed analog terminal | Connects to COM when IN = LOW; provides fail-safe or default-closed signal path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ (e.g., ±15.5V), eliminating level-shifting in wide-dynamic-range instrumentation |
| Guaranteed on-resistance flatness | ΔRON ≤ 5Ω over full analog range - maintains consistent gain/attenuation across signal swing |
| Low off-isolation degradation | 68dB off-isolation at 1MHz - suppresses crosstalk between inactive and active channels |
| Sub-250ns switching speed | tON < 250ns, tOFF < 210ns at TMIN to TMAX - suitable for multiplexed data acquisition up to ~2MHz |
| Ultra-low power consumption | 35µW typical quiescent power - enables integration into always-on, low-duty-cycle portable systems |
Applications
| Test Equipment Signal Routing | Military Radio Channel Selection |
|---|---|
Use Scenario: Automated test systems route calibrated reference signals to DUT inputs while isolating unused paths. IC Role / Device Role / Timing Role: Precision SPDT switch selects between calibration source and stimulus generator under microcontroller control. Use Value: <10pC charge injection prevents step errors in 16-bit DAC/ADC reference paths; matched RON ensures ratio accuracy across channels. | Use Scenario: Secure comms radios require fast, reliable antenna or filter bank switching without signal interruption. IC Role / Device Role / Timing Role: MAX319ESA+T provides break-before-make RF front-end switching synchronized to frequency-hopping sequences. Use Value: 5–13ns break interval prevents transient shorts; >±2000V ESD rating survives harsh field-handling and lightning-induced transients. |
| Guidance System Sensor Multiplexing | Heads-Up Display (HUD) Video Path Control |
Use Scenario: Inertial navigation units multiplex gyro, accelerometer, and magnetometer outputs to a shared ADC. IC Role / Device Role / Timing Role: Low-leakage (<10nA at +85°C) SPDT switch routes high-impedance sensor outputs without DC offset drift. Use Value: Sub-6nA off-leakage preserves µV-level sensor bias stability over temperature; rail-to-rail support handles ±10V transducer outputs. | Use Scenario: Avionics HUDs switch between primary flight display and synthetic vision video sources. IC Role / Device Role / Timing Role: High-fidelity analog video path selector with minimal crosstalk and glitch-free transitions. Use Value: 85dB crosstalk rejection at 1MHz prevents ghosting between video sources; flat RON avoids luminance nonlinearity across brightness range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | SPDT, 4.7Ω typical RON, ±15V supply, but requires external VDD/VSS decoupling; no guaranteed RON match spec | Better RON and bandwidth, but lacks guaranteed matching and flatness specs critical for metrology | Select ADG1419BRMZ only when ultra-low RON dominates over matching and leakage requirements |
| TS5A23157DCUR | SPDT, 0.9Ω typical RON, +1.65V to +5.5V single supply only; max analog range ±2.75V | Optimized for low-voltage portable gear; incompatible with ±15V or rail-to-rail industrial signal chains | Choose TS5A23157DCUR for battery-powered consumer devices, not for military/test equipment requiring wide voltage range |
Compared with ADG1419BRMZ and TS5A23157DCUR, the MAX319ESA+T uniquely guarantees on-resistance matching (<2Ω) and flatness (≤5Ω ΔRON) across temperature and signal swing - making it irreplaceable in precision multiplexing where channel-to-channel consistency defines system accuracy.
Availability
MAX319ESA+T is available at Aetrix Electronics and suitable for test equipment, military radios, guidance systems, and heads-up displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX319ESA+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
Maxim Integrated (now part of Analog Devices) designs high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX317/MAX318/MAX319 family was engineered specifically for precision analog signal routing in demanding environments - emphasizing low charge injection, matched on-resistance, and robust ESD performance over raw speed or low RON alone.
FAQ
What is the maximum analog signal voltage range supported by the MAX319ESA+T?
The MAX319ESA+T supports analog signals from V− to V+, with a maximum breakdown voltage of +44V referenced to V−. Under ±15V dual-supply operation, it reliably handles ±15.5V signals. In single-supply mode (+12V), the analog range spans 0V to +12V. The device's rail-to-rail capability means no internal clamping occurs - signal fidelity is preserved across the full supply range, provided absolute maximum ratings are observed.
Does the MAX319ESA+T require separate logic and analog grounds?
No, the MAX319ESA+T uses a single GND pin (Pin 3) that serves as the reference for both logic inputs (IN, VL) and substrate bias. However, best practice dictates separating digital and analog ground planes on the PCB and tying them at a single point near the device's GND pin to minimize noise coupling. The IC itself does not isolate these domains internally - proper layout is essential to maintain its specified 85dB crosstalk and low leakage performance.
Can the MAX319ESA+T operate with unbalanced supplies like +24V and –5V?
Yes, the MAX319ESA+T supports unbalanced supplies as long as the difference between V+ and V− does not exceed +44V and each supply remains within its absolute maximum rating (V+ ≤ V− + 44V; GND ≤ V− + 25V). For example, +24V and –5V yields a 29V differential - well within limit. Analog signal range becomes asymmetric (–5V to +24V), and switching times may vary slightly versus symmetric rails, but functionality and specifications remain valid per the datasheet's unbalanced-supply characterization.
What is the guaranteed break-before-make time for the MAX319ESA+T?
The MAX319ESA+T guarantees a break-before-make interval (tD) of 5ns minimum to 13ns maximum at +25°C, measured under RL = 1000Ω and CL = 35pF with ±15V supplies. This specification ensures no overlap between NC and NO conduction, preventing momentary shorts during state transitions - a critical requirement in fault-tolerant systems such as avionics signal routing and redundant sensor interfaces.
Is the MAX319ESA+T pin-compatible with other members of the MAX317/MAX318/MAX319 family?
Yes, the MAX319ESA+T shares identical pinout and package with MAX317ESA+T and MAX318ESA+T - all use the same 8-pin SO footprint with COM, GND, V+, VL, IN, V−, NO, and NC assigned to Pins 1–8 respectively. However, internal switch configuration differs: MAX317 is NC-only, MAX318 is NO-only, and MAX319 is SPDT. Swapping them requires logic-level and signal-path revalidation, as the functional behavior (e.g., default state, channel count) is not interchangeable despite mechanical compatibility.
MAX319ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX319ESA+T FAQ
1.How can I place an order for MAX319ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX319ESA+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 MAX319ESA+T reliable?
The price and inventory of MAX319ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX319ESA+T is usually 5 days.
3.What payment methods are accepted for MAX319ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX319ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX319ESA+T?
MAX319ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX319ESA+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 MAX319ESA+T?
For technical support, including MAX319ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX319ESA+T requirements.
6.How does Aetrix verify that MAX319ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX319ESA+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 MAX319ESA+T meets industry standards.
7.What is the process for return or replacement of MAX319ESA+T?
All MAX319ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX319ESA+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 MAX319ESA+T part is unused and in its original packaging.
Return procedure for MAX319ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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