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Analog Devices Inc./Maxim Integrated MAX398EGE
- Part No.:
- MAX398EGE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MAX398EGE.pdf
- Description:
- IC SWITCH SP8T X 1 100OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,362
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Product details
Overview
The MAX398EGE from Maxim Integrated is a precision 8-channel CMOS analog multiplexer designed for low-distortion signal routing in precision data-acquisition and test systems. It delivers <100Ω on-resistance (typ. 60Ω), <6Ω channel-to-channel RON matching, <5pC charge injection, rail-to-rail analog signal handling (±4.5V with ±5V supplies), and operates from +3V to +15V single or ±3V to ±8V dual supplies - enabling use in battery-powered instrumentation and military-grade guidance systems.
For engineers reviewing the MAX398EGE datasheet, MAX398EGE pinout, MAX398EGE application, or MAX398EGE equivalent, this page provides verified electrical parameters, QFN-EP package layout, leakage and switching performance at -40°C to +85°C, and direct alternatives compatible with sample-and-hold, ATE, and audio routing designs.
Technical Context
The MAX398EGE implements an 8:1 bidirectional analog switch architecture using low-voltage silicon-gate CMOS process technology. Its decoder logic accepts three address inputs (A0–A2) and an active-high enable (EN) to select one of eight NOx inputs to connect to the common COM terminal, with guaranteed break-before-make timing (≥90ns) and TTL/CMOS-compatible control inputs.
It features electrostatic discharge protection >2000V, matched on-resistance flatness (<11Ω over full signal range), and temperature-stable leakage: COM off-leakage <2.5nA and NO off-leakage <1nA at +85°C. All specifications are fully characterized across the -40°C to +85°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 8-channel, single-pole single-throw (SPST) analog multiplexer with 1 COM output |
| On-Resistance (RON) | 60Ω typical at VCOM = ±3V, V+ = +5V/V− = −5V - ensures minimal signal attenuation and gain error in precision amplification paths |
| RON Matching | <6Ω max difference between any two channels - critical for multi-channel calibration and ratiometric measurement accuracy |
| Charge Injection | <5pC max - limits voltage glitch on sampled hold capacitors, preserving 12-bit+ resolution in S/H circuits |
| Off-Leakage Current | <1nA NO off-leakage and <2.5nA COM off-leakage at +85°C - maintains high-impedance signal integrity in high-Z sensor interfaces |
| Supply Range | +3V to +15V single supply or ±3V to ±8V dual supply - supports portable, industrial, and military power architectures without level-shifting |
| Switching Speed | 250ns max transition time - enables multiplexing rates up to ~2MHz in fast data acquisition systems |
Pinout & Package
MAX398EGE is housed in a 16-pin QFN-EP package (4mm × 4mm, 0.9mm height) with exposed pad (EP) that must be connected to V+. The package supports thermal dissipation up to 1484mW at +70°C ambient and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | Binary address inputs selecting one of eight NOx channels (000–111); CMOS/TTL-compatible thresholds (VIL ≤ 0.8V, VIH ≥ 2.4V) |
| 2 | EN | Active-high enable input - disables all switches when low, reducing system power and crosstalk in idle states |
| 3 | V− | Negative supply rail input - required for bipolar operation; tied to GND for single-supply mode |
| 4–7, 9–12 | NO1–NO4, NO5–NO8 | Bidirectional analog input terminals - support signal routing in either direction with rail-to-rail voltage swing |
| 8 | COM | Common analog I/O terminal - connects to selected NOx channel; serves as input or output depending on signal flow |
| 13 | V+ | Positive supply rail input - powers internal logic and switch array; EP must be soldered to this node for thermal and ESD performance |
| 14 | GND | Ground reference for logic and substrate - separate from analog ground in mixed-signal layouts to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| PIN-Compatible Replacement | Direct drop-in replacement for DG408, DG508A, and industry-standard 8-channel muxes - no PCB redesign required |
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ (e.g., ±4.5V with ±5V supplies) - eliminates clipping in wide-dynamic-range sensor front-ends |
| Guaranteed Flat RON | <11Ω variation across full analog input range - ensures consistent gain and linearity in programmable gain amplifier (PGA) configurations |
| ESD Robustness | >2000V HBM - sustains handling and board-level transients in automated test and field-deployed equipment |
| Low Power Consumption | <300µW typical quiescent power - extends battery life in portable medical and handheld instrumentation |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-precision ADC via a switched-capacitor hold circuit. IC Role / Device Role / Timing Role: Precision analog switch controlling charge transfer timing and minimizing injection-induced error during hold phase. Use Value: <5pC charge injection and <1nA off-leakage preserve capacitor voltage integrity for ≥12-bit effective resolution over temperature. |
Use Scenario: Routing stimulus signals and responses between DUT pins and measurement instruments in modular ATE racks. IC Role / Device Role / Timing Role: High-isolation (−75dB off-isolation), fast-switching (250ns) multiplexer enabling parallel test sequencing. Use Value: <6Ω RON matching ensures consistent channel gain calibration across 8 test paths without per-channel compensation. |
| Military Radios | Audio Signal Routing |
Use Scenario: Selecting between RF front-end filters, antenna paths, or IF stages in ruggedized tactical radios operating from −40°C to +85°C. IC Role / Device Role / Timing Role: Temperature-stable analog switch providing reliable signal path selection under extreme environmental stress. Use Value: Guaranteed parametric performance across full industrial temp range, including <2.5nA COM off-leakage at +85°C for low-noise receiver front-ends. |
Use Scenario: Dynamic reconfiguration of microphone inputs, speaker outputs, or effects loops in professional audio mixers and DSP interfaces. IC Role / Device Role / Timing Role: Low-distortion, bidirectional analog switch supporting AC-coupled line-level and mic-level signals. Use Value: Rail-to-rail operation and <100Ω RON minimize insertion loss and THD+N degradation in analog audio signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BRUZ | 40Ω typical RON, ±15V supply capable, but higher 12pC charge injection and only rated to +125°C (not −40°C) | Better for high-voltage industrial PLC I/O; less suitable for low-leakage S/H or battery-powered ATE | Select ADG1408BRUZ only if ±15V operation or lower RON is prioritized over leakage and cold-temperature stability |
| TMUX1308PWR | Single +1.8V to +5.5V supply only, 4.5Ω RON, but no bipolar capability and 10nA off-leakage at +85°C | Optimized for ultra-low-power MCU-based portable devices; incompatible with ±5V legacy test gear | Choose TMUX1308PWR for cost-sensitive, single-supply embedded systems where leakage and bipolar operation are not required |
Compared with ADG1408BRUZ and TMUX1308PWR, the MAX398EGE uniquely combines industrial temperature range, bipolar supply support, sub-5pC charge injection, and proven pin compatibility with DG408-class systems - making it the preferred choice for legacy-replacement and high-fidelity signal routing where parametric consistency matters.
Availability
MAX398EGE is available at Aetrix Electronics and suitable for automatic test equipment, military radio subsystems, and precision sample-and-hold circuits requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX398EGE 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, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX398EGE belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-leakage, low-distortion signal routing in demanding test, measurement, and defense applications where parameter stability over temperature and supply variation is non-negotiable.
FAQ
What is the maximum analog signal range supported by the MAX398EGE?
The MAX398EGE supports rail-to-rail analog signals from V− to V+, enabling ±4.5V operation with ±5V supplies or 0V to +4.5V with +5V single supply. This range is confirmed in the Electrical Characteristics tables for both dual-supply (±5V) and single-supply (+5V) conditions, and applies directly to the MAX398EGE across its full −40°C to +85°C operating range.
Is the MAX398EGE pin-compatible with the DG408?
Yes, the MAX398EGE is explicitly specified as pin-compatible with the DG408, DG409, DG508A, and DG509A in the Features section of the datasheet. Its QFN-EP pinout maps identically to the functional pin assignments of those legacy parts, allowing direct replacement without layout changes - a key design advantage confirmed for the MAX398EGE variant.
What is the guaranteed on-resistance matching between channels for the MAX398EGE?
The MAX398EGE guarantees ΔRON <6Ω between any two channels, defined as RON(MAX) − RON(MIN). This specification is tested and guaranteed across the full −40°C to +85°C temperature range and appears in the Electrical Characteristics table under "ΔRON" for both dual- and single-supply conditions - a core parameter validated for the MAX398EGE.
Does the MAX398EGE require external protection diodes for overvoltage tolerance?
No - the MAX398EGE includes internal protection diodes on all analog and supply pins, as noted in Figure 1 and the Applications Information section. External diodes are optional and only recommended if absolute maximum ratings risk being exceeded; their use reduces analog signal range by one diode drop but does not alter MAX398EGE's intrinsic RON or leakage behavior.
How does the exposed pad (EP) on the MAX398EGE QFN package function electrically?
The exposed pad (EP) on the MAX398EGE QFN package must be connected to V+ per the Pin Description table and datasheet note ("*EP = EXPOSED PAD, CONNECT EP TO V+"). This connection provides critical thermal conduction and enhances ESD robustness (>2000V HBM), and is mandatory for compliance with the device's Absolute Maximum Ratings and thermal derating specifications.
MAX398EGE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SP8T
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 6Ohm (Max)
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 40pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
MAX398EGE FAQ
1.How can I place an order for MAX398EGE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX398EGE 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 MAX398EGE reliable?
The price and inventory of MAX398EGE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX398EGE is usually 5 days.
3.What payment methods are accepted for MAX398EGE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX398EGE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX398EGE?
MAX398EGE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX398EGE 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 MAX398EGE?
For technical support, including MAX398EGE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX398EGE requirements.
6.How does Aetrix verify that MAX398EGE is sourced from the original manufacturer or authorized distributors?
All MAX398EGE 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 MAX398EGE meets industry standards.
7.What is the process for return or replacement of MAX398EGE?
All MAX398EGE units undergo pre-shipment inspection (PSI). If there is an issue with MAX398EGE, 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 MAX398EGE part is unused and in its original packaging.
Return procedure for MAX398EGE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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