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Analog Devices Inc./Maxim Integrated MAX395EAG-T
- Part No.:
- MAX395EAG-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX395EAG-T.pdf
- Description:
- IC SW SPST-NOX8 100OHM 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,900
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Product details
Overview
MAX395EAG-T from Maxim Integrated is an 8-channel, serially controlled, single-pole/single-throw (SPST) CMOS analog switch with rail-to-rail signal handling, 100Ω max on-resistance (±5V supplies), 5Ω max channel-to-channel on-resistance match, and 0.1nA max 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 data-acquisition multiplexing and industrial control signal routing.
For engineers reviewing the MAX395EAG-T datasheet, MAX395EAG-T pinout, MAX395EAG-T application, or MAX395EAG-T equivalent, key selection considerations include its SPI/QSPI/Microwire-compatible 3-wire serial interface, daisy-chain capability via DOUT, asynchronous RESET input, TTL/CMOS logic compatibility at +5V or ±5V, and guaranteed rail-to-rail analog switching across its full supply range.
Technical Context
The MAX395EAG-T implements an 8-bit shift register architecture synchronized to SCLK's rising edge, with latch update triggered by the rising edge of CS-fully compliant with SPI Mode 0 (CPOL=0, CPHA=0) and Microwire timing. Its internal logic drives eight independent SPST switches, each with bidirectional analog conduction and matched RON performance.
It supports daisy-chaining via DOUT output, enabling multi-device serial configuration without additional address lines. The RESET pin provides hardware-level initialization of all switches to OFF and clears the shift register to zero, independent of clock or CS state-critical for deterministic power-up behavior in safety-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 100Ω max at ±5V supplies - ensures minimal signal attenuation and gain error in precision analog paths |
| RON match | 5Ω max between channels - enables consistent channel switching in multiplexer applications |
| Analog signal range | Rail-to-rail (V− to V+) - supports full dynamic range signal routing without clipping |
| Off-leakage current | 0.1nA max at +25°C - preserves accuracy in high-impedance sensor and measurement circuits |
| Supply range | ±2.7V to ±8V dual or +2.7V to +16V single - accommodates legacy ±5V, modern low-voltage, and wide-range industrial rails |
| Serial interface | SPI/QSPI/Microwire-compatible 3-wire (SCLK, DIN, CS) - integrates directly with microcontroller SPI peripherals without protocol translation |
| ESD protection | >2kV per Method 3015.7 - enhances robustness in handling and board-level ESD events |
Pinout & Package
MAX395EAG-T is housed in a 24-pin narrow-body SOIC (SO) package (suffix "G" per Maxim ordering nomenclature), with 0.300-inch body width and standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCLK) | Serial clock input | Synchronizes DIN data sampling on rising edge; defines maximum 2.1MHz interface speed |
| 2 (V+) | Positive analog supply | Sets upper analog voltage limit; must be ≥2.7V (single) or ≥±2.7V (dual) |
| 3 (DIN) | Serial data input | Accepts 8-bit control word; bit D7 controls NO7/COM7, D0 controls NO0/COM0 |
| 4 (GND) | Digital ground reference | Logic reference only; analog signals float between V+ and V− with no GND dependency |
| 5–12, 14–20 (NO0–NO7) | Normally open switch terminals | Bidirectional analog I/O; interchangeable with COM pins for flexible routing topologies |
| 6–12, 13–19 (COM0–COM7) | Common switch terminals | Paired with NOx to form SPST paths; identical electrical characteristics to NOx pins |
| 21 (V−) | Negative analog supply | Sets lower analog voltage limit; connect to GND for single-supply operation |
| 22 (DOUT) | Serial data output | Shift-register echo output; enables daisy-chaining of multiple MAX395EAG-T devices |
| 23 (RESET) | Asynchronous reset input | Active-low; forces all switches OFF and clears shift register regardless of SCLK/CS state |
| 24 (CS) | Chip-select input | Active-low; latches 8-bit DIN data on rising edge to update switch states |
Key Features
| Feature | Design Value |
|---|---|
| 8 independently controllable SPST switches | Enables flexible 8:1 multiplexing, dual 4:2 differential mux, or quad SPDT configurations via external wiring |
| Rail-to-rail analog signal handling | Supports full-scale signal routing from V− to V+ without distortion or clipping in ±5V, ±3V, or +5V systems |
| 100Ω max on-resistance flatness | ≤10Ω variation over full signal range (±3V at ±5V supplies) - maintains linearity in audio and instrumentation paths |
| Daisy-chain capable serial interface | DOUT output allows cascading of unlimited MAX395EAG-T units using single SCLK/DIN/CS bus - reduces GPIO count and PCB routing complexity |
| Asynchronous hardware RESET | Guarantees known OFF-state startup and fault recovery without software intervention or clock dependency |
Applications
| Industrial Data Acquisition | Avionics Signal Routing |
|---|---|
Use Scenario: Multiplexing 8 thermocouple or RTD inputs into a single ADC channel in a programmable logic controller. IC Role / Device Role / Timing Role: Precision analog SPST switch providing low-RON, matched channel resistance, and sub-nA leakage to preserve measurement integrity. Use Value: Enables high-resolution temperature monitoring with ≤0.01% gain error contribution and no channel crosstalk-induced offset drift. | Use Scenario: Routing analog sensor outputs (e.g., airspeed, altitude, attitude) to redundant flight computers in a fly-by-wire system. IC Role / Device Role / Timing Role: Fault-tolerant signal selector with rail-to-rail operation across −8V to +8V supply rails and >2kV ESD immunity. Use Value: Ensures uninterrupted signal path continuity during transient events and meets DO-160 Section 22 ESD requirements. |
| ATE Channel Switching | Audio Signal Matrix |
Use Scenario: Configuring test signal paths between DUT ports and instrument sources/sinks in automated test equipment. IC Role / Device Role / Timing Role: High-speed, low-leakage analog switch with 400ns max tON/tOFF and <−90dB off-isolation at 100kHz. Use Value: Supports 100+ channel-per-second switching rates while maintaining >80dB dynamic range and minimal charge injection artifacts. | Use Scenario: Building a 8×8 analog audio matrix for studio mixing consoles or broadcast routing systems. IC Role / Device Role / Timing Role: Bidirectional, low-distortion SPST switch with <0.01% THD+N at 1kHz and flat RON vs. signal voltage. Use Value: Delivers transparent audio switching with no audible coloration, even at line-level (±2V) and headphone-drive (±5V) operating points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX391CPE+ | Quad SPST, parallel control (no serial interface); 100Ω RON, same temp range and leakage specs | Requires 4 dedicated GPIOs instead of 3-wire bus; no daisy-chain or RESET support | Select when simplicity, minimal firmware overhead, and fixed 4-channel routing outweigh serial configurability |
| ADG1408BRUZ | 8-channel SPST, serial SPI interface (but no DOUT daisy-chain); 4.7Ω RON, ±15V supply capable | Higher supply voltage range but lacks asynchronous RESET and guaranteed rail-to-rail at low voltages | Select when ultra-low on-resistance and high-voltage operation are critical, and daisy-chain is unnecessary |
Compared with MAX391CPE+, the MAX395EAG-T reduces GPIO count and enables dynamic reconfiguration; compared with ADG1408BRUZ, it offers superior low-voltage rail-to-rail performance and deterministic hardware reset-making it optimal for space-constrained, multi-device, and safety-aware designs.
Availability
MAX395EAG-T is available at Aetrix Electronics and suitable for industrial process control, avionics signal routing, and automated test equipment requiring stable component supply and long-term manufacturability.
Supply support for MAX395EAG-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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX395 product line delivers serially controlled analog switches optimized for precision multiplexing, low-leakage signal routing, and robust operation across extended temperature ranges and supply configurations.
FAQ
What is the operating temperature range of the MAX395EAG-T?
The MAX395EAG-T is rated for −40°C to +85°C operation, matching the "E" grade specification in Maxim's ordering nomenclature. This range is validated across all electrical parameters including RON, leakage, timing, and logic thresholds, making it suitable for industrial and avionics environments where ambient temperatures exceed commercial-grade limits. The MAX395EAG-T maintains 100Ω max RON and 5nA max off-leakage at +85°C.
Does the MAX395EAG-T support single-supply operation?
Yes, the MAX395EAG-T supports single-supply operation from +2.7V to +16V. When used in single-supply mode, V− is connected to GND, and analog signals swing from 0V to V+. The device guarantees rail-to-rail switching, 100Ω max RON at +5V, and full logic compatibility-enabling use in battery-powered data loggers, portable instrumentation, and +3.3V/+5V microcontroller systems without level-shifting.
How does the daisy-chain functionality work on the MAX395EAG-T?
The MAX395EAG-T implements daisy-chaining via its DOUT pin, which outputs the DIN data delayed by eight clock cycles. Multiple MAX395EAG-T devices can be connected in series (DOUT→DIN), with shared SCLK and CS lines. When CS rises, all devices simultaneously latch their respective 8-bit words-allowing coordinated switching across dozens of channels using only three MCU pins. No additional glue logic or address decoding is required.
Is the MAX395EAG-T pin-compatible with the MAX335?
Yes, the MAX395EAG-T is explicitly stated as pin-compatible with the industry-standard MAX335 in the datasheet. Both share identical 24-pin SOIC pinout, function mapping (including SCLK, DIN, CS, RESET, DOUT, V+, V−, GND, and NO/COM assignments), and electrical timing specifications-enabling drop-in replacement in legacy designs without PCB modification or firmware changes.
What logic families are compatible with the MAX395EAG-T's digital inputs?
The MAX395EAG-T's digital inputs (SCLK, DIN, CS, RESET) feature 0.8V to 2.4V logic thresholds, ensuring direct compatibility with both TTL and CMOS logic families when operated with ±5V or +5V supplies. No external level shifters are needed for interfacing with 3.3V or 5V microcontrollers, FPGAs, or CPLDs-simplifying system integration and reducing BOM cost and board area.
MAX395EAG-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SSOP
MAX395EAG-T FAQ
1.How can I place an order for MAX395EAG-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX395EAG-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 MAX395EAG-T reliable?
The price and inventory of MAX395EAG-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX395EAG-T is usually 5 days.
3.What payment methods are accepted for MAX395EAG-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX395EAG-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX395EAG-T?
MAX395EAG-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX395EAG-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 MAX395EAG-T?
For technical support, including MAX395EAG-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX395EAG-T requirements.
6.How does Aetrix verify that MAX395EAG-T is sourced from the original manufacturer or authorized distributors?
All MAX395EAG-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 MAX395EAG-T meets industry standards.
7.What is the process for return or replacement of MAX395EAG-T?
All MAX395EAG-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX395EAG-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 MAX395EAG-T part is unused and in its original packaging.
Return procedure for MAX395EAG-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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