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Analog Devices Inc./Maxim Integrated MAX395EAG+
- Part No.:
- MAX395EAG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX395EAG+.pdf
- Description:
- IC SW SPST-NOX8 100OHM 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,836
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Product details
Overview
MAX395EAG+ 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 data-acquisition multiplexing and industrial control signal routing.
For engineers reviewing the MAX395EAG+ datasheet, MAX395EAG+ pinout, MAX395EAG+ application, or MAX395EAG+ equivalent, key selection criteria include its SPI/QSPI/Microwire-compatible 3-wire serial interface, daisy-chainable DOUT output, asynchronous RESET input, TTL/CMOS logic compatibility at +5V/±5V, and guaranteed -40°C to +85°C operating range.
Technical Context
The MAX395EAG+ 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 protocols. Its internal logic drives eight independent CMOS transmission gates, each with matched RON and flat RON over ±3V signal range.
It supports daisy-chaining via DOUT-to-DIN cascading under shared CS control, enabling simultaneous configuration of multiple devices. The asynchronous RESET pin forces all switches OFF and clears the shift register independently of clock or CS state-critical for fail-safe system initialization.
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 between channels | 5Ω max - enables accurate channel-to-channel signal ratio matching in multiplexer applications |
| Off-leakage current | 0.1nA max at +25°C - preserves high-impedance node integrity in sensor front-ends and sample-hold circuits |
| Analog signal range | Rail-to-rail (V− to V+) - supports full dynamic range signal switching without clipping |
| Supply range | ±2.7V to ±8V dual or +2.7V to +16V single - provides design flexibility across industrial, avionics, and test equipment rails |
| Serial interface | SPI/QSPI/Microwire-compatible 3-wire (SCLK, DIN, CS) with DOUT - enables microcontroller integration without protocol translation |
| Operating temperature | −40°C to +85°C - qualified for extended industrial and embedded environments |
Pinout & Package
MAX395EAG+ is housed in a 24-pin wide-body SOIC (SO) package (suffix WG), with 0.300" body width and standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCLK (Pin 1) | Serial clock input | Edge-triggered synchronous clock for shift register; rising edge clocks DIN data into register |
| V+ (Pin 2) | Positive analog supply | Sets upper voltage limit for analog signals; powers internal CMOS switch drivers |
| DIN (Pin 3) | Serial data input | 8-bit control word input; bit D7 is first shifted in and controls NO7/COM7 switch |
| GND (Pin 4) | Digital ground reference | Reference for digital inputs only; analog signals are referenced solely to V+ and V− |
| NO0–NO7 (Pins 5,7,9,11,14,16,18,20) | Normally open switch terminals | Interchangeable with COM pins; bidirectional signal path with identical RON and leakage |
| COM0–COM7 (Pins 6,8,10,12,13,15,17,19) | Common switch terminals | Interchangeable with NO pins; forms SPST connection when paired with corresponding NO |
| V− (Pin 21) | Negative analog supply | Sets lower voltage limit for analog signals; tied to GND for single-supply operation |
| DOUT (Pin 22) | Serial data output | Shift register Q7 output; enables daisy-chaining of multiple MAX395EAG+ devices |
| RESET (Pin 23) | Asynchronous reset input | Active-low; forces all switches OFF and clears shift register regardless of clock or CS state |
| CS (Pin 24) | Chip select input | Active-low; latches 8-bit shift register contents to analog switches on rising edge |
Key Features
| Feature | Design Value |
|---|---|
| 8-channel SPST architecture | Enables flexible 8×1 multiplexing, dual 4×2 differential mux, or quad SPDT configurations via external wiring |
| Rail-to-rail analog switching | Supports full-swing signals from V− to V+ without distortion-critical for ±10V industrial I/O and audio routing |
| 5Ω max RON match | Ensures consistent gain and phase response across channels in measurement and calibration systems |
| Daisy-chainable serial interface | Reduces MCU GPIO count and simplifies PCB layout for multi-switch systems (e.g., ATE backplanes) |
| Asynchronous hardware RESET | Guarantees known safe state at power-up or fault recovery-no software dependency required |
| 2kV ESD protection | Meets Method 3015.7 for robustness in handling and board-level assembly environments |
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 channels, and rail-to-rail operation for high-fidelity sensor signal conditioning. Use Value: 0.1nA off-leakage prevents DC offset drift; 5Ω RON match minimizes channel-to-channel gain error below 0.1%. | Use Scenario: Routing discrete analog sensor outputs (e.g., airspeed, altitude, attitude) to redundant flight computers in fly-by-wire systems. IC Role / Device Role / Timing Role: Fault-tolerant analog switch with asynchronous RESET and −40°C to +85°C qualification for airborne environmental stress. Use Value: Guaranteed operation across extreme temperature cycling; RESET ensures deterministic fail-safe shutdown during power transients. |
| ATE Equipment Switch Matrix | Audio Signal Selection |
Use Scenario: Constructing a reconfigurable 64×64 analog crosspoint matrix using 8× MAX395EAG+ per row/column in daisy-chained mode. IC Role / Device Role / Timing Role: Serially controlled switch node with DOUT-enabled cascading and <500ns turn-on/off for fast test sequencing. Use Value: Single-CS daisy chain reduces controller pin count by 7× vs. parallel control; tON/tOFF ≤ 400ns enables sub-microsecond channel switching. | Use Scenario: Selecting between 8 analog line-level audio sources (e.g., mic preamps, instruments, playback channels) in a studio mixer. IC Role / Device Role / Timing Role: Low-distortion, bidirectional analog switch with flat RON and <−90dB crosstalk for clean signal path isolation. Use Value: RFLAT(ON) ≤ 15Ω over ±3V ensures consistent frequency response; VCT < −90dB prevents audible bleed between channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel serial analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX395CAG+ | 0°C to +70°C temperature range; otherwise identical electrical specs and pinout | Not suitable for industrial or automotive environments requiring extended temperature operation | Select MAX395CAG+ only for commercial-grade applications with ambient temperature control |
| MAX395EWG+ | Same −40°C to +85°C rating and SOIC-24 package; differs only in tape-and-reel packaging (WG vs EAG) | No functional difference; EAG denotes tube packaging, WG denotes tape-and-reel-same die and performance | Choose MAX395EWG+ for automated SMT assembly; MAX395EAG+ for prototyping or low-volume hand soldering |
Compared with MAX395CAG+, MAX395EAG+ adds guaranteed operation down to −40°C-essential for uncontrolled industrial cabinets. Compared with MAX395EWG+, it offers identical performance in tube packaging, simplifying small-batch evaluation and lab use without reel-handling infrastructure.
Availability
MAX395EAG+ is available at Aetrix Electronics and suitable for industrial data acquisition, avionics signal routing, and ATE equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX395EAG+ 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX395 product line delivers serially controlled analog switches optimized for high-channel-count, low-leakage, rail-to-rail signal routing in space-constrained and noise-sensitive systems.
FAQ
What is the maximum supply voltage range supported by the MAX395EAG+?
The MAX395EAG+ supports dual supplies from ±2.7V to ±8V or a single supply from +2.7V to +16V. Absolute maximum ratings specify V+ up to +17V and V− down to −17V, but continuous operation must remain within the specified ranges to ensure reliability and parametric compliance. Operation outside these ranges risks permanent damage or degraded RON and leakage performance.
Does the MAX395EAG+ support daisy-chaining, and how is it implemented?
Yes, the MAX395EAG+ supports daisy-chaining via its DOUT pin, which outputs the Q7 bit of the internal 8-bit shift register. To cascade multiple devices, connect DOUT of one MAX395EAG+ to DIN of the next, tie all CS pins together, and drive SCLK synchronously. On the rising edge of CS, all devices simultaneously latch their respective 8-bit words-enabling coordinated switching across large analog matrices without additional control lines.
What is the function of the RESET pin on the MAX395EAG+, and is it mandatory to use?
The RESET pin on the MAX395EAG+ is an asynchronous active-low input that forces all eight switches OFF and clears the internal shift register to zero-regardless of SCLK or CS state. While not mandatory for basic operation, it is strongly recommended for system-level reliability to ensure a known safe state at power-up, brownout, or fault recovery. Leaving RESET unconnected or floating is not advised; tie to V+ (via pull-up) or controlled logic for deterministic behavior.
Can the MAX395EAG+ be used in single-supply configurations, and what are the analog signal limits?
Yes, the MAX395EAG+ operates in single-supply mode by connecting V− to GND. In this configuration, the analog signal range extends from 0V (GND) to V+, supporting rail-to-rail operation-for example, 0V to +5V or 0V to +12V. All electrical specifications-including RON, leakage, and switching speed-are characterized across single-supply conditions (e.g., +3V, +5V, +12V) and remain fully valid per the datasheet's single-supply electrical characteristics tables.
How does the MAX395EAG+ handle bidirectional analog signals, and are NO and COM pins interchangeable?
Yes, NO and COM pins on the MAX395EAG+ are fully interchangeable and function identically in either direction-signals pass with equal RON, leakage, and bandwidth regardless of orientation. This bidirectionality is inherent to its CMOS transmission-gate topology and is explicitly confirmed in the Pin Description section: "NO_ and COM_ pins are identical and interchangeable. Either may be considered as an input or an output." Designers may assign roles freely (e.g., NO as input/COM as output or vice versa) without performance penalty.
MAX395EAG+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX395EAG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX395EAG+ 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+ reliable?
The price and inventory of MAX395EAG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX395EAG+ is usually 5 days.
3.What payment methods are accepted for MAX395EAG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX395EAG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX395EAG+?
MAX395EAG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX395EAG+ 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+?
For technical support, including MAX395EAG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX395EAG+ requirements.
6.How does Aetrix verify that MAX395EAG+ is sourced from the original manufacturer or authorized distributors?
All MAX395EAG+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX395EAG+?
All MAX395EAG+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX395EAG+, 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+ part is unused and in its original packaging.
Return procedure for MAX395EAG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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