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Analog Devices Inc./Maxim Integrated MAX398EPE+
- Part No.:
- MAX398EPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX398EPE+.pdf
- Description:
- IC INTEGRATED CIRCUIT
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Inventory:1,890
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Product details
Overview
MAX398EPE+ from Maxim Integrated is an 8-channel CMOS analog multiplexer configured as a single-pole, eight-throw (SP8T) switch with rail-to-rail signal handling, 100Ω typical on-resistance at ±5V, 0.1nA max off-leakage at +25°C, and TTL/CMOS-compatible logic thresholds-used in low-voltage data-acquisition systems for sensor signal routing.
For engineers reviewing the MAX398EPE+ datasheet, MAX398EPE+ pinout, MAX398EPE+ application, or MAX398EPE+ equivalent, key selection criteria include guaranteed on-resistance match (6Ω), dual-supply operation (±2.7V to ±8V), single-supply support (+2.7V to +16V), low crosstalk (< –90dB), and compatibility with 74HC4051 pinout.
Technical Context
The MAX398EPE+ implements a CMOS transmission-gate architecture with independent control of eight analog paths via three binary address lines (ADDA, ADDB, ADDC) and an active-low inhibit input (INH). Its internal logic-level translators isolate digital control signals from analog supplies while enabling operation across wide voltage ranges.
It features matched channel on-resistance (ΔRON ≤ 6Ω for A-suffix variants), flat on-resistance over signal range (≤10Ω variation), and rail-to-rail analog switching without level-shifting-enabling direct interface with precision op-amps and ADCs in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 100Ω max at ±5V - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Match (ΔRON) | 6Ω max - enables high-accuracy ratiometric measurements across channels |
| Off-Leakage Current | 0.1nA max at +25°C - preserves integrity of high-impedance sensor outputs (e.g., pH electrodes, piezoresistive bridges) |
| Supply Range | ±2.7V to ±8V dual or +2.7V to +16V single - supports portable designs using Li-ion, alkaline, or industrial rails |
| Logic Thresholds | VIL = 0.8V, VIH = 2.4V at +5V - guarantees reliable interfacing with 3.3V/5V microcontrollers without level shifters |
| Crosstalk | < –90dB at 100kHz - prevents coupling between adjacent channels in multi-signal acquisition |
| Off-Isolation | < –90dB at 100kHz - maintains signal integrity when unused channels are disconnected |
Pinout & Package
MAX398EPE+ is supplied in a 16-pin plastic DIP package (0.300" width) with through-hole mounting and industry-standard 74HC4051 pin compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 12, 13, 14, 15 | NO0–NO7 | Normally open analog terminals - bidirectional signal paths selected by address inputs |
| 3 | COM | Common analog terminal - connects to one NOx path per address state; no ground reference required |
| 6 | INH | Digital inhibit - active-high logic disables all switches; default low enables routing |
| 7 | V− | Negative analog supply - tied to GND for single-supply operation; sets lower analog signal limit |
| 8 | GND | Digital ground reference - separate from analog signal return; no current path to COM/NO pins |
| 9, 10, 11 | ADDA, ADDB, ADDC | Binary address inputs - select one of eight NOx paths (000–111); ADDC not used in MAX398 |
| 16 | V+ | Positive analog/digital supply - powers internal logic and transmission gates; defines upper analog signal limit |
Key Features
| Feature | Design Value |
|---|---|
| PIN-compatible with 74HC4051 | Direct drop-in replacement in legacy designs without PCB changes or layout rework |
| Rail-to-rail analog switching | Supports full V− to V+ signal swing - eliminates need for external biasing in bipolar sensor interfaces |
| Guaranteed on-resistance flatness | ≤10Ω variation across signal range - minimizes distortion in audio and waveform routing applications |
| Low charge injection (2pC typ) | Reduces settling error in sample-and-hold circuits and high-resolution ADC front-ends |
| TTL/CMOS logic compatibility | Operates reliably with 3.3V or 5V microcontrollers - no external level translation needed |
Applications
| Instrumentation Signal Multiplexing | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Routing outputs from 8 thermocouples or RTDs into a single precision ADC in a portable environmental monitor. IC Role / Device Role / Timing Role: SP8T analog multiplexer enabling sequential sampling with <100ns break-before-make delay to prevent channel shorting. Use Value: 0.1nA off-leakage preserves µV-level thermocouple EMF accuracy; 6Ω RON match ensures consistent gain calibration across channels. | Use Scenario: Selecting between multiple low-power sensors (gas, humidity, pressure) in a handheld IoT node powered by two AA cells. IC Role / Device Role / Timing Role: Low-quiescent analog switch enabling sleep-mode power gating and wake-up signal routing. Use Value: Single-supply operation down to +2.7V extends usable battery life; 10µA total supply current minimizes standby drain. |
| Audio Signal Switching | Industrial PLC I/O Conditioning |
Use Scenario: Routing line-level stereo inputs (L/R × 4 sources) to a shared audio codec in a compact mixer or conferencing system. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting full-duplex audio paths with <0.04% THD at 1kHz. Use Value: –90dB crosstalk prevents audible bleed between input sources; rail-to-rail capability handles ±2V peak signals without clipping. | Use Scenario: Isolating and conditioning analog inputs (4–20mA, ±10V) from field transmitters before feeding to an isolated ADC in a DIN-rail controller. IC Role / Device Role / Timing Role: High-isolation analog multiplexer providing channel-by-channel signal path selection prior to protection and amplification stages. Use Value: –90dB off-isolation blocks noise coupling from adjacent high-noise I/O modules; ±8V dual-supply tolerance accommodates industrial signal ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACPE+ | Same 8-channel SP8T topology, identical pinout, but rated for 0°C to +70°C (vs. –40°C to +85°C for MAX398EPE+) | Suitable for commercial-grade equipment; lacks extended temperature qualification for industrial deployment | Select MAX398EPE+ for designs requiring operation beyond +70°C ambient or long-term reliability under thermal cycling |
| ADG708BRUZ | 8-channel CMOS MUX with 4Ω typical on-resistance, but only rated for +3V to +5.5V single supply (no dual-supply support) | Optimized for low-voltage portable devices; cannot replace MAX398EPE+ in ±5V or wide-range supply systems | Choose ADG708BRUZ only when supply is strictly 3.3V/5V and ultra-low RON is critical; verify logic threshold compatibility |
Compared with MAX4051ACPE+, MAX398EPE+ offers extended temperature range and tighter leakage specs; versus ADG708BRUZ, it provides dual-supply flexibility and higher voltage tolerance at the cost of slightly higher on-resistance.
Availability
MAX398EPE+ is available at Aetrix Electronics and suitable for instrumentation signal multiplexing, battery-powered data loggers, and industrial PLC I/O conditioning requiring stable component supply across extended temperature ranges and low-leakage performance.
Supply support for MAX398EPE+ 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 demanding industrial, medical, and communications applications.
The MAX398 belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered for high-accuracy signal routing in resource-constrained and battery-operated systems where leakage, matching, and supply flexibility are critical.
FAQ
What is the maximum analog signal range supported by the MAX398EPE+?
The MAX398EPE+ supports rail-to-rail analog signals from V− to V+. With ±5V supplies, this means a full –5V to +5V range; with +5V single supply (V− = GND), the range is 0V to +5V. The device maintains specified on-resistance and leakage performance across this entire range, making it suitable for bipolar sensor interfaces and unipolar industrial signals alike.
Does the MAX398EPE+ require external level-shifting when interfaced with a 3.3V microcontroller?
No, the MAX398EPE+ does not require external level-shifting with a 3.3V microcontroller. Its logic inputs (ADDA, ADDB, INH) have TTL/CMOS-compatible thresholds (VIL ≤ 0.8V, VIH ≥ 2.4V at V+ = +5V), and these thresholds scale appropriately with supply voltage. When V+ = +3.3V, VIH remains within standard 3.3V logic high range, ensuring reliable control from 3.3V GPIOs without additional circuitry.
How does the MAX398EPE+ handle power-supply sequencing during startup?
The MAX398EPE+ recommends powering V+ first, then V−, followed by logic inputs and analog signals. Improper sequencing-such as applying analog signals before V+ or V−-can forward-bias internal ESD diodes and cause excessive current flow. If controlled sequencing isn't feasible, external blocking diodes (as shown in Maxim's Figure 1) can be added to protect the device, though this reduces the effective analog signal range by ~0.7V.
Can the MAX398EPE+ be used in audio-frequency applications up to 20kHz?
Yes, the MAX398EPE+ is well-suited for audio-frequency applications up to 20kHz. It exhibits <0.04% THD at 1kHz into 600Ω and maintains flat frequency response up to 50MHz in 50Ω systems. At audio frequencies, its low on-capacitance (8pF), low crosstalk (<–90dB), and rail-to-rail capability ensure minimal distortion, phase shift, or inter-channel interference in line-level routing and mixing applications.
What is the thermal performance difference between the MAX398EPE+ and non-A-suffix variants like MAX398EPE?
The MAX398EPE+ is the A-suffix variant, fully characterized for on-resistance match (≤6Ω), on-resistance flatness (≤10Ω), and low leakage (0.1nA max at +25°C). Non-A versions (e.g., MAX398EPE) specify looser tolerances: ΔRON ≤12Ω and off-leakage ≤1nA. This makes MAX398EPE+ preferred for precision applications such as ratiometric sensor measurement or calibrated data acquisition where channel-to-channel consistency is critical.
MAX398EPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX398EPE+ FAQ
1.How can I place an order for MAX398EPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX398EPE+ 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 MAX398EPE+ reliable?
The price and inventory of MAX398EPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX398EPE+ is usually 5 days.
3.What payment methods are accepted for MAX398EPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX398EPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX398EPE+?
MAX398EPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX398EPE+ 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 MAX398EPE+?
For technical support, including MAX398EPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX398EPE+ requirements.
6.How does Aetrix verify that MAX398EPE+ is sourced from the original manufacturer or authorized distributors?
All MAX398EPE+ 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 MAX398EPE+ meets industry standards.
7.What is the process for return or replacement of MAX398EPE+?
All MAX398EPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX398EPE+, 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 MAX398EPE+ part is unused and in its original packaging.
Return procedure for MAX398EPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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