Analog Devices Inc./Maxim Integrated MAX398CSE
- Part No.:
- MAX398CSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX398CSE.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,686
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Product details
Overview
MAX398CSE from Maxim Integrated is a precision 8-channel CMOS analog multiplexer designed for low-distortion signal routing in data-acquisition and test systems. It delivers <100Ω on-resistance, <6Ω channel-to-channel matching, <5pC charge injection, rail-to-rail analog signal handling (±4.5V), and operates from +3V to +15V single or ±3V to ±8V dual supplies. It serves as the core switching element in sample-and-hold circuits and battery-operated instrumentation.
For engineers reviewing the MAX398CSE datasheet, MAX398CSE pinout, MAX398CSE application, or MAX398CSE equivalent, this page provides verified specifications, package-validated pin functions, real-world application context, and two confirmed alternative parts with documented functional and parametric differences.
Technical Context
The MAX398CSE 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.
All channels share matched on-resistance flatness (<11Ω variation over full signal range) and guaranteed low off-leakage (<2.5nA at +85°C). It features TTL/CMOS-compatible digital inputs, electrostatic discharge protection >2000V, and supports unbalanced supply configurations such as +10V/−5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 8-channel single-pole, single-throw (SPST) analog multiplexer |
| On-Resistance (RON) | <100Ω typical at VCOM = ±3V - ensures minimal signal attenuation and gain error in precision measurement paths |
| RON Matching | <6Ω max between channels - enables high-accuracy differential and ratiometric measurements |
| Charge Injection | <5pC - limits voltage glitch on sample capacitors in S/H circuits, reducing acquisition settling time |
| Analog Signal Range | ±4.5V with ±5V supplies - supports rail-to-rail input/output swing without clipping |
| Supply Range | +3V to +15V single or ±3V to ±8V dual - allows operation in low-voltage portable and industrial bipolar systems |
| Leakage Current (NO OFF) | <2.5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and long-hold applications |
Pinout & Package
The MAX398CSE is supplied in a 16-pin narrow SOIC (Small Outline Integrated Circuit) package, designated S16-1 per Maxim's ordering guide. The exposed pad variant is not used in this grade; EP connection is not applicable.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | Binary address inputs selecting one of eight NOx channels (000–111); CMOS/TTL compatible |
| 2 | EN | Active-high enable: disables all switches when low, preventing unintended channel conduction |
| 3 | V− | Negative supply rail for dual-supply operation; tied to GND for single-supply use |
| 4–7, 9–12 | NO1–NO4, NO5–NO8 | Eight bidirectional analog input terminals; low capacitance (11pF typ.) minimizes crosstalk |
| 8 | COM | Common bidirectional analog output/input node; connects to selected NOx channel when enabled |
| 13 | V+ | Positive supply rail; supports up to +15V for wide dynamic range signal handling |
| 14 | GND | Digital and analog ground reference; decoupling near V+/V− pins critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| PIN-Compatible Replacement | Direct drop-in substitute for industry-standard DG408, DG508A - eliminates PCB redesign in legacy systems |
| Guaranteed RON Flatness | <11Ω variation across full ±4.5V analog range - maintains linearity and THD in audio and sensor signal chains |
| Rail-to-Rail Switching | Supports signals from V− to V+ - enables full utilization of ADC input range in data-acquisition front-ends |
| Low Power Consumption | <300µW typical - extends battery life in portable test equipment and handheld meters |
| ESD Robustness | >2000V HBM - improves manufacturing yield and field reliability in unshielded industrial environments |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Capturing precise voltage levels from multiple sensors before ADC conversion in multichannel DAQ systems. IC Role / Device Role / Timing Role: Analog multiplexer routing selected sensor output to a shared sample capacitor; controlled by synchronous address/enable timing. Use Value: Low charge injection (<5pC) minimizes hold-step error; matched RON ensures consistent settling across channels. |
Use Scenario: Routing stimulus signals and responses between DUT and measurement instruments in rack-mounted ATE platforms. IC Role / Device Role / Timing Role: High-speed analog switch enabling sequential channel testing under microcontroller control. Use Value: Fast transition time (<250ns) and low crosstalk (−92dB) preserve signal fidelity during high-throughput test cycles. |
| Military Radios | Battery-Operated Systems |
Use Scenario: Selecting antenna feeds or IF signal paths in ruggedized HF/VHF transceivers requiring ESD-hardened components. IC Role / Device Role / Timing Role: Signal path selector in RF front-end modules; EN pin enables power-gating during standby. Use Value: >2000V ESD rating meets MIL-STD-883 Class 3B requirements; wide supply range accommodates varying power rails. |
Use Scenario: Managing analog inputs from multiple low-power sensors in portable medical monitors or environmental loggers. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch enabling duty-cycled sensor polling to extend battery runtime. Use Value: <300µW power dissipation and <2.5nA leakage at +85°C maintain accuracy during extended temperature exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 8-channel, 44Ω max RON at +15V, −40°C to +85°C grade only; no QFN option in C-grade | Higher RON increases gain error in precision bridges; wider temp range suits industrial over commercial use | Select ADG408BRZ when extended temperature operation or higher ESD tolerance (4000V) is required |
| TMUX1208RTER | 8-channel, 5Ω max RON, but only supports +1.08V to +5.5V supply; no bipolar capability | Not usable in ±5V or +12V systems; optimized for low-voltage MCU-based signal routing, not legacy industrial designs | Choose TMUX1208RTER for modern battery-powered IoT nodes where ultra-low RON and I²C control are prioritized |
Compared with ADG408BRZ and TMUX1208RTER, the MAX398CSE uniquely balances wide supply flexibility (+3V to +15V / ±3V to ±8V), commercial-grade cost, and proven pin compatibility with legacy DG408/DG508A sockets-making it optimal for retrofit and mid-volume industrial instrumentation.
Availability
MAX398CSE is available at Aetrix Electronics and suitable for automatic test equipment, battery-operated instrumentation, and military radio subsystems requiring stable component supply across multi-year production cycles.
Supply support for MAX398CSE 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, communications, and computing markets.
The MAX398 belongs to Maxim's precision analog switch product line, engineered specifically for low-error signal routing in data-acquisition, test, and military-aerospace systems where RON matching, charge injection, and supply flexibility are critical.
FAQ
What is the maximum analog signal voltage range supported by the MAX398CSE?
The MAX398CSE supports analog signals from V− to V+ across its full operating supply range. With ±5V supplies, the usable range is ±4.5V; with +15V/0V single supply, it handles 0V to +14.5V. This rail-to-rail capability ensures compatibility with standard ADC input ranges and prevents clipping in precision measurement paths. The MAX398CSE maintains specified RON flatness and leakage performance across these extremes.
Is the MAX398CSE pin-compatible with the DG408 and DG508A?
Yes, the MAX398CSE is explicitly designed as a pin-compatible replacement for the DG408 and DG508A analog multiplexers. Its pinout matches these industry-standard devices in the 16-pin narrow SOIC package (S16-1), allowing direct substitution without PCB layout changes. This compatibility is confirmed in the device's "Features" section and "Pin Configurations" diagram in the official datasheet.
What is the typical on-resistance matching between channels for the MAX398CSE?
The MAX398CSE guarantees on-resistance matching of less than 6Ω between any two channels, defined as ΔRON = RONMAX − RONMIN. This tight matching is maintained over temperature and signal voltage, enabling accurate ratiometric measurements and minimizing channel-to-channel gain variation in multichannel data acquisition systems using the MAX398CSE.
Does the MAX398CSE support single-supply operation?
Yes, the MAX398CSE supports single-supply operation from +3V to +15V. In this mode, V− must be connected to GND. The device retains CMOS/TTL logic compatibility, low leakage, and fast switching performance. At +5V supply, typical on-resistance is 100Ω and transition time remains under 250ns - confirming robust functionality in battery-powered and low-voltage embedded systems using the MAX398CSE.
What is the charge injection specification for the MAX398CSE, and why does it matter?
The MAX398CSE guarantees charge injection of less than 5pC. This parameter quantifies the transient voltage glitch injected onto the COM node when a channel turns off - critical in sample-and-hold circuits where even picocoulombs can cause measurable hold-step errors. Low charge injection directly reduces settling time and improves DC accuracy in precision acquisition systems relying on the MAX398CSE.
MAX398CSE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- -
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX398CSE FAQ
1.How can I place an order for MAX398CSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX398CSE 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 MAX398CSE reliable?
The price and inventory of MAX398CSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX398CSE is usually 5 days.
3.What payment methods are accepted for MAX398CSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX398CSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX398CSE?
MAX398CSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX398CSE 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 MAX398CSE?
For technical support, including MAX398CSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX398CSE requirements.
6.How does Aetrix verify that MAX398CSE is sourced from the original manufacturer or authorized distributors?
All MAX398CSE 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 MAX398CSE meets industry standards.
7.What is the process for return or replacement of MAX398CSE?
All MAX398CSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX398CSE, 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 MAX398CSE part is unused and in its original packaging.
Return procedure for MAX398CSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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