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Analog Devices Inc./Maxim Integrated MAX395CAG+T
- Part No.:
- MAX395CAG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX395CAG+T.pdf
- Description:
- IC SW SPST-NOX8 100OHM 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,171
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Product details
Overview
The MAX395CAG+T from Maxim Integrated is an 8-channel, serially controlled, single-pole/single-throw (SPST) analog switch IC with rail-to-rail signal handling, 100Ω max on-resistance (±5V supplies), 5Ω max channel-to-channel on-resistance match, and <0.1nA off-leakage at +25°C. It operates from ±2.7V to ±8V dual supplies or +2.7V to +16V single supply and is used in precision serial data-acquisition and audio signal routing systems.
For engineers reviewing the MAX395CAG+T datasheet, MAX395CAG+T pinout, MAX395CAG+T application, or MAX395CAG+T equivalent, key selection criteria include SPI/QSPI/Microwire™ compatibility, daisy-chainable serial interface, asynchronous RESET, TTL/CMOS logic thresholds, and guaranteed on-resistance flatness over ±3V signal range.
Technical Context
The MAX395CAG+T implements an 8-bit shift register architecture synchronized to SCLK's rising edge, with CS-controlled latching of switch states on its rising edge-fully compliant with SPI Mode 0 (CPOL=0, CPHA=0) and Microwire™ standards. Its internal logic drives eight independent CMOS transmission gates, each bidirectional and symmetric in conduction.
All digital inputs (DIN, SCLK, CS, RESET) feature fixed 0.8V/2.4V logic thresholds across ±5V or +5V supplies, ensuring robust noise immunity and eliminating level-shifter requirements. The DOUT pin supports cascading up to N devices via daisy-chained shift registers without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 100Ω max at ±5V supplies - ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-Resistance Match (∆RON) | 5Ω max between channels - enables accurate gain/offset matching in multi-channel instrumentation |
| Rail-to-Rail Signal Range | VCOM/VNO = V− to V+ - supports full dynamic range signal switching without clipping |
| Off-Leakage Current | 0.1nA max at +25°C - preserves high-impedance node integrity in low-current sensor interfaces |
| Supply Range | ±2.7V to ±8V dual or +2.7V to +16V single - accommodates legacy industrial and modern low-voltage systems |
| Serial Interface | SPI™/QSPI™/Microwire™ compatible - integrates directly with standard microcontroller peripherals without protocol translation |
| ESD Protection | >2kV per Method 3015.7 - enhances reliability in handling-sensitive test and ATE environments |
Pinout & Package
MAX395CAG+T is housed in a 24-pin SOIC wide-body package (SOG), with 0.300" width and standard JEDEC MS-013AC footprint. Pin 1 is marked with a dot; pin numbering follows counterclockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCLK (Pin 1) | Serial clock input | Edge-triggered synchronous control for shift register; rising edge clocks DIN data into register |
| V+ (Pin 2) | Positive analog supply | Sets upper analog signal limit; powers internal CMOS switches and ESD diodes |
| DIN (Pin 3) | Serial data input | Accepts 8-bit control word; bit D7 is first shifted in and controls NO7/COM7 switch |
| GND (Pin 4) | Digital ground reference | Reference for all digital I/O; isolated from analog signal path (no analog ground connection required) |
| NO0–NO7 (Pins 5,7,9,11,14,16,18,20) | Analog switch normally-open terminals | Bidirectional signal ports; interchangeable with COMx pins for flexible routing topologies |
| COM0–COM7 (Pins 6,8,10,12,13,15,17,19) | Analog switch common terminals | Paired with corresponding NOx to form SPST switches; may serve as input or output |
| V− (Pin 21) | Negative analog supply | Sets lower analog signal limit; tied to GND for single-supply operation |
| DOUT (Pin 22) | Serial data output | Shift-register Q7 output; enables daisy-chaining by connecting to DIN of next device |
| RESET (Pin 23) | Asynchronous reset input | Active-low signal forcing all switches OFF and clearing internal shift register to zero state |
| CS (Pin 24) | Chip-select input | Active-low latch control; rising edge updates switch states from shift register contents |
Key Features
| Feature | Design Value |
|---|---|
| 8 independently controllable SPST switches | Enables discrete channel enable/disable in multiplexed data acquisition without shared control lines |
| 10Ω max on-resistance flatness | Maintains consistent gain and linearity across full ±3V analog input range, critical for measurement accuracy |
| Break-before-make timing (15ns) | Prevents momentary shorting during channel transitions, avoiding signal glitches in sensitive analog paths |
| Charge injection ≤10pC | Minimizes voltage step errors at switch closure, preserving DC accuracy in sample-and-hold and integrator circuits |
| Channel-to-channel crosstalk <−90dB | Isolates adjacent signal paths at 100kHz, supporting high-density mixed-signal routing in compact PCB layouts |
Applications
| Serial Data-Acquisition Systems | Industrial Process Control |
|---|---|
Use Scenario: Multiplexing 8 sensor outputs (e.g., thermocouples, RTDs) into a single ADC channel under microcontroller control. IC Role / Device Role / Timing Role: Precision analog multiplexer with serial configuration; handles ±10V signals and maintains sub-0.1% gain error across channels. Use Value: Eliminates need for parallel GPIO control lines and reduces BOM count versus discrete switch arrays. | Use Scenario: Routing analog setpoint and feedback signals in PLC I/O modules with hot-swap capability. IC Role / Device Role / Timing Role: Fault-tolerant signal path selector; RESET pin enables safe power-up default (all OFF) and emergency shutdown. Use Value: Supports fail-safe operation and meets IEC 61000-4-2 Level 4 ESD immunity requirements. |
| Avionics Signal Management | Audio Signal Routing |
Use Scenario: Configurable RF front-end calibration path switching in airborne transceivers with tight phase-matching needs. IC Role / Device Role / Timing Role: Low-crosstalk analog switch matrix; operates from ±5V supplies with <10pC charge injection. Use Value: Maintains signal integrity below −90dB across 100kHz–1MHz band, meeting DO-160 Section 22 radiated emissions limits. | Use Scenario: Dynamic input source selection in professional audio mixers with mute/fade functionality. IC Role / Device Role / Timing Role: Bidirectional audio path controller; rail-to-rail operation preserves full 24-bit dynamic range of line-level signals. Use Value: Enables silent switching via break-before-make timing and avoids pop/click artifacts during real-time reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX391CNG+ | Quad SPST switch (4 channels); identical electrical specs but no serial interface - requires parallel GPIO control | Best for fixed-configuration systems where serial programming adds unnecessary complexity | Select when board space allows separate control lines and firmware lacks SPI resources |
| ADG708BRUZ | 8-channel SPST with I²C interface; 4Ω typical RON, but only supports +3V to +5.5V single supply (no dual-supply operation) | Suitable for low-voltage portable instruments but incompatible with ±5V or higher analog rails | Choose for battery-powered designs needing I²C simplicity and lower on-resistance, not dual-supply flexibility |
Compared with MAX391CNG+ and ADG708BRUZ, the MAX395CAG+T uniquely combines 8-channel serial control, dual-supply operation up to ±8V, and guaranteed on-resistance matching - making it optimal for reconfigurable industrial and test equipment where supply versatility and channel consistency are mandatory.
Availability
MAX395CAG+T is available at Aetrix Electronics and suitable for serial data-acquisition systems, industrial process-control modules, and avionics signal management requiring stable component supply and long-term manufacturability.
Supply support for MAX395CAG+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) is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets.
The MAX395 belongs to Maxim's precision analog switch product line, designed specifically for reconfigurable signal routing in test equipment, data loggers, and programmable instrumentation where serial control, low leakage, and rail-to-rail performance are essential.
FAQ
What supply configurations does the MAX395CAG+T support?
The MAX395CAG+T supports dual supplies from ±2.7V to ±8V and single supplies from +2.7V to +16V. When using single supply, V− must be connected to GND. The device maintains specified on-resistance, leakage, and switching performance across all supported ranges - verified per Electrical Characteristics tables for ±5V, +5V, and +3V conditions in the official datasheet.
How does the MAX395CAG+T handle bidirectional analog signals?
The MAX395CAG+T implements symmetrical CMOS transmission gates: NOx and COMx pins are electrically identical and interchangeable. Signals pass equally well in either direction, with matched on-resistance and flatness across the full rated analog range (e.g., ±3V with ±5V supplies). This enables flexible routing in both multiplexer and demultiplexer topologies without signal-path degradation.
Can multiple MAX395CAG+T devices be connected in series?
Yes - the MAX395CAG+T supports daisy-chaining via its DOUT pin. When CS is held low, DIN data shifts through the internal 8-bit register and emerges at DOUT after eight clocks. Connecting DOUT of one MAX395CAG+T to DIN of the next allows cascading any number of devices; a single SCLK/CS sequence updates all simultaneously upon CS rising edge.
What is the function of the RESET pin on the MAX395CAG+T?
The RESET pin on the MAX395CAG+T is an asynchronous active-low input that forces all eight switches to the OFF state and clears the internal shift register to zero - regardless of CS or SCLK state. It provides deterministic power-up behavior and emergency signal isolation. RESET must be driven between GND and V+; exceeding those voltages risks damage due to lack of clamping diodes.
Is the MAX395CAG+T pin-compatible with the MAX335?
Yes - the MAX395CAG+T is explicitly stated as pin-compatible with the industry-standard MAX335 in the datasheet's General Description. Both share identical 24-pin SOIC (or DIP) pinouts, supply pin locations (V+, V−, GND), digital interface pins (SCLK, DIN, DOUT, CS, RESET), and analog switch terminal assignments (NO0–NO7, COM0–COM7), enabling direct replacement in existing MAX335-based designs.
MAX395CAG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 8
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 5Ohm (Max)
- Voltage - Supply, Single (V+):
- 2.7V ~ 16V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 400ns, 400ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 2pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SSOP
MAX395CAG+T FAQ
1.How can I place an order for MAX395CAG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX395CAG+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 MAX395CAG+T reliable?
The price and inventory of MAX395CAG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX395CAG+T is usually 5 days.
3.What payment methods are accepted for MAX395CAG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX395CAG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX395CAG+T?
MAX395CAG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX395CAG+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 MAX395CAG+T?
For technical support, including MAX395CAG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX395CAG+T requirements.
6.How does Aetrix verify that MAX395CAG+T is sourced from the original manufacturer or authorized distributors?
All MAX395CAG+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 MAX395CAG+T meets industry standards.
7.What is the process for return or replacement of MAX395CAG+T?
All MAX395CAG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX395CAG+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 MAX395CAG+T part is unused and in its original packaging.
Return procedure for MAX395CAG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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