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Analog Devices Inc./Maxim Integrated MAX319CSA+T
- Part No.:
- MAX319CSA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX319CSA+T.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,520
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Product details
Overview
MAX319CSA+T from Maxim Integrated is a precision SPDT CMOS analog switch with one normally open (NO) and one normally closed (NC) channel, 35Ω max on-resistance, <10pC charge injection, and ±44V breakdown voltage. It operates from bipolar supplies (±4.5V to ±20V) or single supply (+10V to +30V), enabling rail-to-rail signal handling in test equipment and military radio front-ends.
For engineers reviewing the MAX319CSA+T datasheet, MAX319CSA+T pinout, MAX319CSA+T application, or MAX319CSA+T equivalent, key selection criteria include guaranteed on-resistance matching (<2Ω), break-before-make timing (5–13ns), leakage <6nA at +85°C, and SO-8 package compatibility with space-constrained guidance systems and PBX switching matrices.
Technical Context
The MAX319CSA+T implements a dual-channel 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 and low charge injection (10pC typ), critical for sample-and-hold accuracy.
Bipolar operation (±4.5V to ±20V) enables symmetric rail-to-rail analog swing up to ±15.5V, while single-supply mode (+10V to +30V) supports battery-powered systems. The device guarantees off-isolation >68dB and crosstalk >85dB at 1MHz, meeting requirements for high-fidelity signal routing in communications systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT with independent NO and NC terminals - enables true break-before-make signal path selection |
| On Resistance (max) | 35Ω at TA = +25°C - ensures minimal signal attenuation in precision analog paths |
| On Resistance Match | <2Ω between NO and NC channels - maintains amplitude balance in differential or redundant routing |
| Charge Injection | <10pC - limits voltage glitch on sampled nodes, preserving integrity in sample-and-hold circuits |
| Off-Leakage (max) | 6nA at +85°C - prevents DC error accumulation in high-impedance sensor interfaces |
| Supply Range | ±4.5V to ±20V (bipolar) or +10V to +30V (single) - supports wide dynamic range and legacy system integration |
| ESD Rating | >±2000V per Method 3015.7 - enhances robustness during board handling and field deployment |
Pinout & Package
MAX319CSA+T is housed in an 8-pin SO (Small Outline) package, 150-mil width, with standard JEDEC MS-012AC footprint and 1.27mm lead pitch. Pin 1 is COM (common terminal); pins 2 and 8 are NC and NO respectively; pin 7 is V−; pin 4 is V+; pin 5 is VL (logic supply); pin 6 is IN (control input); pin 3 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Shared signal path for both NO and NC switches - must be connected to source or load node |
| 2 - N.C. | No-connect terminal | Not internally bonded - left unconnected; no electrical function |
| 3 - GND | Logic ground reference | Reference for VL and IN signals; separate from analog ground to minimize noise coupling |
| 4 - V+ | Analog positive supply | Sets upper analog signal limit; supports rail-to-rail operation up to +44V relative to V− |
| 5 - VL | Logic-level supply input | Defines logic threshold (TTL/CMOS compatible); may tie to V+ for CMOS or +5V for TTL |
| 6 - IN | Control logic input | Inverts logic sense: low = NC closed / NO open; high = NC open / NO closed |
| 7 - V− | Analog negative supply | Sets lower analog signal limit; must be ≤ V+ − 44V to avoid breakdown |
| 8 - NC | Normally closed analog terminal | Connected to COM when IN = low; breaks before NO closes during transition (5–13ns) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports ±15.5V signal swing with ±16.5V supplies - eliminates level-shifting in wide-dynamic-range systems |
| Guaranteed break-before-make | 5–13ns delay ensures no momentary short between NO and NC - prevents signal contention in multiplexed paths |
| Flat on-resistance vs. signal voltage | ∆3Ω max variation across full analog range - preserves linearity in precision gain-setting and filtering networks |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V thresholds with sub-0.5µA input current - interoperable with microcontrollers and FPGAs without buffering |
| Low power consumption | 35µW typical quiescent power - suitable for always-on battery-backed test instrumentation and portable radios |
Applications
| Test Equipment Signal Routing | Military Radio Front-End Switching |
|---|---|
|
Use Scenario: Multiplexing calibration references and DUT signals in automated test systems. IC Role / Device Role / Timing Role: SPDT analog switch selecting between reference voltage and sensor output under microcontroller control. Use Value: 35Ω on-resistance and <2Ω matching ensure measurement repeatability; 10pC charge injection prevents offset drift in 16-bit ADC front-ends. |
Use Scenario: Antenna diversity switching and RF receive-path protection in tactical HF/VHF transceivers. IC Role / Device Role / Timing Role: High-voltage analog switch isolating receiver inputs during transmit bursts. Use Value: ±44V breakdown and <6nA leakage at +85°C maintain signal integrity and low standby current in harsh environmental enclosures. |
| PBX/PABX Line Interface | Guidance System Sensor Multiplexing |
|
Use Scenario: Selecting between primary and backup voice lines in digital telephone exchanges. IC Role / Device Role / Timing Role: Dual-path analog switch providing redundancy and fault isolation in telephony interface cards. Use Value: Break-before-make timing prevents cross-talk between active lines; SO-8 package enables dense PCB layout in carrier-grade line cards. |
Use Scenario: Time-division multiplexing of inertial sensor outputs (gyro, accelerometer) in missile guidance units. IC Role / Device Role / Timing Role: Low-glitch SPDT switch sampling multiple sensors into shared ADC channel. Use Value: <10pC charge injection and flat RON preserve nanoradian-level angular resolution; -40°C to +85°C rating matches MIL-STD-810 thermal profiles. |
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-supply only (+5V to +36V); 4.7Ω typical RON; no guaranteed break-before-make | Better RON for low-voltage precision DAC buffers; lacks bipolar support for ±15V legacy systems | Select when operating exclusively from single supply and lowest on-resistance is critical |
| TS5A3159DCKR | 3.3V logic compatible; 0.75Ω typical RON; 1.65V to 5.5V supply; no bipolar capability | Optimized for portable battery-powered gear; insufficient voltage headroom for military radio analog rails | Choose for cost-sensitive consumer-grade instrumentation with 3.3V control and low-RON priority |
Compared with ADG1419BRMZ and TS5A3159DCKR, MAX319CSA+T uniquely supports bipolar supplies, guaranteed break-before-make, and ±44V breakdown - making it irreplaceable in legacy military, telecom, and industrial systems requiring rail-to-rail analog integrity and high-voltage robustness.
Availability
MAX319CSA+T is available at Aetrix Electronics and suitable for test equipment, military radios, PBX infrastructure, and guidance systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX319CSA+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 and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX317/MAX318/MAX319 family delivers precision analog switching for systems requiring low distortion, high voltage tolerance, and guaranteed parametric performance across temperature - targeting military, telecom, and test instrumentation markets.
FAQ
What is the maximum analog signal voltage range supported by MAX319CSA+T?
MAX319CSA+T supports rail-to-rail analog signals up to ±15.5V with ±16.5V supplies, enabled by its ±44V breakdown rating. The absolute maximum analog voltage at any terminal is (V− − 2V) to (V+ + 2V), so proper supply sequencing (V+ first, then V−) is required to avoid exceeding limits and ensure reliable operation across the full −40°C to +85°C range.
Does MAX319CSA+T require external pull-up or pull-down resistors on the IN pin?
No, MAX319CSA+T does not require external biasing on the IN pin. Its TTL/CMOS-compatible input accepts 0.8V (low) and 2.4V (high) thresholds with logic input current ≤ ±0.5µA across temperature. Direct connection to microcontroller GPIO or FPGA I/O is sufficient; adding external resistors would unnecessarily increase power and reduce noise immunity without functional benefit.
Can MAX319CSA+T operate from a single +12V supply?
Yes, MAX319CSA+T operates from a single +12V supply: connect V− to GND, V+ to +12V, VL to +5V (for TTL compatibility) or +12V (for CMOS), and GND to system ground. In this configuration, the analog signal range is 0V to +12V, and on-resistance increases slightly (typ. 40Ω) versus bipolar operation - verified in the single-supply electrical characteristics table.
What is the guaranteed break-before-make time for MAX319CSA+T?
The guaranteed break-before-make interval for MAX319CSA+T is 5ns to 13ns at +25°C with ±15V supplies and RL = 1000Ω, CL = 35pF. This parameter is production-tested and ensures no overlap between NC and NO conduction, preventing transient shorts in safety-critical multiplexing applications such as guidance system sensor selection and PBX line redundancy switching.
Is MAX319CSA+T pin-compatible with other devices in the MAX317/MAX318/MAX319 family?
Yes, MAX319CSA+T shares identical pinout and package (SO-8) with MAX317CSA and MAX318CSA. All three devices have COM on pin 1, GND on pin 3, V+ on pin 4, VL on pin 5, IN on pin 6, V− on pin 7, and functional terminals (NC, NO, or N.C.) on pins 2 and 8 - enabling drop-in replacement where SPDT functionality is required instead of SPST.
MAX319CSA+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX319CSA+T FAQ
1.How can I place an order for MAX319CSA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX319CSA+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 MAX319CSA+T reliable?
The price and inventory of MAX319CSA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX319CSA+T is usually 5 days.
3.What payment methods are accepted for MAX319CSA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX319CSA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX319CSA+T?
MAX319CSA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX319CSA+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 MAX319CSA+T?
For technical support, including MAX319CSA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX319CSA+T requirements.
6.How does Aetrix verify that MAX319CSA+T is sourced from the original manufacturer or authorized distributors?
All MAX319CSA+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 MAX319CSA+T meets industry standards.
7.What is the process for return or replacement of MAX319CSA+T?
All MAX319CSA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX319CSA+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 MAX319CSA+T part is unused and in its original packaging.
Return procedure for MAX319CSA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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