Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Analog Devices Inc./Maxim Integrated MAX14842ATE+

Name: MAX14842ATE+
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX14842ATE+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MAX14842ATE+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Translators, Level Shifters

Package:

Datasheet:: MAX14842ATE+.pdf

Description:: IC TRANSLTR BIDIRECTIONAL 16TQFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:137

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MAX14842ATE+ from Maxim Integrated is a 6-channel digital ground-level translator IC designed to isolate and translate logic signals across domains with up to 72V ground potential difference. It features four unidirectional (30Mbps) and two bidirectional (2Mbps, I²C-compatible, open-drain) channels, dual supplies (VDDA/VGNDA and VDDB/VGNDB), and operates over –40°C to +125°C for automotive battery management and isolated communication systems.

For engineers reviewing the MAX14842ATE+ datasheet, MAX14842ATE+ pinout, MAX14842ATE+ application, or MAX14842ATE+ equivalent, this page delivers verified electrical parameters, automotive-grade thermal and voltage specifications, side-A/side-B pin functional mapping, and real-world I²C clock-stretching and undervoltage lockout behavior - critical for high-reliability ground-isolated interface design.

Technical Context

The MAX14842ATE+ implements dual-supply BiCMOS isolation architecture with independent VDDA/GNDA and VDDB/GNDB domains. Its six channels are physically partitioned: four unidirectional push-pull outputs (INA1→OUTB1, INA2→OUTB2, INB1→OUTA1, INB2→OUTA2) and two fully bidirectional open-drain I/O pairs (I/OA1↔I/OB1, I/OA2↔I/OB2), each with guaranteed VOL ≤ 0.8V at 4mA sink (side A) and ≤ 0.4V at 30mA sink (side B).

Undervoltage lockout (VUVLO = 2V, hysteresis = 0.1V) actively controls all outputs during supply transients: unidirectional outputs go high-impedance or internally pulled high, while bidirectional pins enter high-Z state and rely on external pullups. The device requires 0V ≤ (VGNDB − VGNDA) ≤ 72V and supports AC common-mode transients up to 10V/ns without corruption.

Key Specifications

Parameter	Value and Actual Design Meaning
Ground Isolation Range	0V to +72V (VGNDB − VGNDA); GNDB must be ≥ GNDA - enables safe signal translation between battery packs, motor controllers, and isolated MCU domains.
Unidirectional Data Rate	Up to 30Mbps per channel (INA/INB → OUTB/OUTA); supports high-speed SPI/MICROWIRE signaling across isolated domains without external level shifters.
Bidirectional Data Rate	Up to 2Mbps per I²C pair (I/OA↔I/OB); includes native clock stretching support - essential for compliant I²C slave operation in automotive sensor networks.
Supply Voltage Range	VDDA/VGNDA = 3.0V–5.5V; VDDB/VGNDB = 3.0V–5.5V - allows mixed-voltage interfacing (e.g., 3.3V MCU ↔ 5V peripheral) with independent domain control.
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive applications including battery monitoring and powertrain subsystems.
Package	16-pin TQFN (4mm × 4mm, exposed pad); thermal resistance θJA = 40°C/W - supports compact, thermally robust PCB layouts in space-constrained modules.
Undervoltage Lockout	Triggers at 2V ±0.1V on either VDDA or VDDB - ensures defined output states during cold-cranking or brownout events in automotive power systems.

Pinout & Package

MAX14842ATE+ uses a 16-pin TQFN package (4mm × 4mm, exposed pad connected to GNDA). Pin functions are strictly side-referenced: Side A (GNDA domain) includes inputs INA1/INA2, outputs OUTA1/OUTA2, bidirectional I/OA1/I/OA2, VDDA, and GNDA; Side B (GNDB domain) includes inputs INB1/INB2, outputs OUTB1/OUTB2, bidirectional I/OB1/I/OB2, VDDB, and GNDB.

Pin/Terminal	Circuit Role	Design Meaning
1, 16	INA2, INA1	Side A logic inputs translated to OUTB2/OUTB1 - accept 0.7×VDDA logic-high; require no direction control.
2, 3	OUTA1, OUTA2	Side A push-pull outputs driven by INB1/INB2 - deliver VOH ≥ VDDA−0.4V at 4mA; eliminate external pullups.
4, 5	I/OA1, I/OA2	Side A bidirectional open-drain I/O - support I²C clock stretching; require external RPUA pullup to VDDA.
6, 7	GNDA, GNDB	Isolated ground references - define domain logic thresholds; GNDB must be ≥ GNDA per absolute max rating.
8, 9	I/OB2, I/OB1	Side B bidirectional open-drain I/O - translate to/from I/OA2/I/OA1; require external RPUB pullup to VDDB.
10, 11	INB2, INB1	Side B logic inputs translated to OUTA2/OUTA1 - accept 0.7×VDDB logic-high; enable reverse-domain control paths.
12, 13	OUTB2, OUTB1	Side B push-pull outputs driven by INA2/INA1 - deliver VOH ≥ VDDB−0.4V at 4mA; drive CMOS/TTL loads directly.
14, 15	VDDB, VDDA	Independent domain supplies - bypassed with 0.1µF ceramic caps to GNDB/GNDA; decoupling critical for noise immunity.
EP	Exposed Pad	Thermal and electrical connection to GNDA - mandatory for thermal performance (θJC = 6°C/W) and EMI reduction.

Key Features

Feature	Design Value
I²C Clock Stretching Support	Native implementation on both bidirectional channels (I/OA1↔I/OB1, I/OA2↔I/OB2) - enables compliant slave devices to hold SCL low without bus contention or data loss.
72V Ground Difference Tolerance	Validated over full −40°C to +125°C range with 0V ≤ (VGNDB − VGNDA) ≤ 72V - eliminates need for optocouplers or discrete isolation in 48V/60V battery systems.
Push-Pull Unidirectional Outputs	Four channels (OUTA1/OUTA2/OUTB1/OUTB2) drive high/low actively - removes external pullup resistors, reduces BOM count, and improves rise/fall times (tR/tF ≤ 5ns).
Undervoltage Lockout (UVLO)	Independent monitoring of VDDA and VDDB with 2V threshold and 0.1V hysteresis - forces safe output states during startup, shutdown, or supply sag in automotive environments.
Open-Drain Bidirectional I/O	I/OA1/I/OA2/I/OB1/I/OB2 feature guaranteed VOL ≤ 0.6V at 10mA (side A) and ≤ 0.4V at 30mA (side B) - ensures reliable low-level signaling with standard I²C pullup values.

Applications

Battery Management Systems	Automotive Body Control Modules
Use Scenario: Monitoring individual cell voltages and temperatures in 48V–72V EV/HEV battery packs, where sensing circuitry resides on high-side (GNDB) and MCU resides on low-side (GNDA). IC Role / Device Role / Timing Role: Ground-level translator enabling UART/SPI communication across 72V isolation barrier; handles up to 30Mbps telemetry streams from analog front-ends. Use Value: Replaces optocoupler-based solutions with 5× smaller footprint, 10× higher speed, and guaranteed operation at 125°C ambient - critical for pack-integrated BMS designs.	Use Scenario: Interfacing I²C temperature/humidity sensors mounted near engine bay (GNDB domain) with cabin MCU (GNDA domain) in modern body control units. IC Role / Device Role / Timing Role: Dual I²C bidirectional channel (I/OA1↔I/OB1, I/OA2↔I/OB2) provides hot-swap-capable, clock-stretching-compliant isolation between domains. Use Value: Eliminates bus lockup during sensor insertion/removal and maintains timing integrity under 125°C under-hood conditions - validated per AEC-Q100 Grade 0 requirements.
Industrial Power-Over-Ethernet (PoE)	Medical Isolated Data Acquisition
Use Scenario: Translating control signals between PoE-powered PD controller (GNDB, 57V) and isolated management MCU (GNDA, 0V) in IEEE 802.3bt Type 4 systems. IC Role / Device Role / Timing Role: Four unidirectional channels carry GPIO, fault alerts, and configuration commands at 30Mbps; two bidirectional channels handle I²C-based PD negotiation. Use Value: Supports full 72V ground offset margin (vs. 57V PoE max), enables single-chip isolation without external level-shifting components - reduces system cost and layout complexity.	Use Scenario: Isolating patient-connected analog sensor front-ends (GNDB) from diagnostic processing unit (GNDA) in portable ECG/EEG monitors requiring reinforced medical isolation. IC Role / Device Role / Timing Role: Translates SPI commands and ADC data across 50V+ ground separation while maintaining sub-100ns propagation delay skew (<6ns) for synchronized sampling. Use Value: Meets IEC 60601-1 creepage/clearance requirements via functional isolation; eliminates timing jitter introduced by optocouplers in multi-channel acquisition.

Battery Management Systems

Automotive Body Control Modules

Use Scenario: Monitoring individual cell voltages and temperatures in 48V–72V EV/HEV battery packs, where sensing circuitry resides on high-side (GNDB) and MCU resides on low-side (GNDA).

IC Role / Device Role / Timing Role: Ground-level translator enabling UART/SPI communication across 72V isolation barrier; handles up to 30Mbps telemetry streams from analog front-ends.

Use Value: Replaces optocoupler-based solutions with 5× smaller footprint, 10× higher speed, and guaranteed operation at 125°C ambient - critical for pack-integrated BMS designs.

Use Scenario: Interfacing I²C temperature/humidity sensors mounted near engine bay (GNDB domain) with cabin MCU (GNDA domain) in modern body control units.

IC Role / Device Role / Timing Role: Dual I²C bidirectional channel (I/OA1↔I/OB1, I/OA2↔I/OB2) provides hot-swap-capable, clock-stretching-compliant isolation between domains.

Use Value: Eliminates bus lockup during sensor insertion/removal and maintains timing integrity under 125°C under-hood conditions - validated per AEC-Q100 Grade 0 requirements.

Industrial Power-Over-Ethernet (PoE)

Medical Isolated Data Acquisition

Use Scenario: Translating control signals between PoE-powered PD controller (GNDB, 57V) and isolated management MCU (GNDA, 0V) in IEEE 802.3bt Type 4 systems.

IC Role / Device Role / Timing Role: Four unidirectional channels carry GPIO, fault alerts, and configuration commands at 30Mbps; two bidirectional channels handle I²C-based PD negotiation.

Use Value: Supports full 72V ground offset margin (vs. 57V PoE max), enables single-chip isolation without external level-shifting components - reduces system cost and layout complexity.

Use Scenario: Isolating patient-connected analog sensor front-ends (GNDB) from diagnostic processing unit (GNDA) in portable ECG/EEG monitors requiring reinforced medical isolation.

IC Role / Device Role / Timing Role: Translates SPI commands and ADC data across 50V+ ground separation while maintaining sub-100ns propagation delay skew (<6ns) for synchronized sampling.

Use Value: Meets IEC 60601-1 creepage/clearance requirements via functional isolation; eliminates timing jitter introduced by optocouplers in multi-channel acquisition.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ground-level translation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM1402ARWZ	4-channel digital isolator (2.5kV RMS), 50Mbps, 3.3V/5V supplies; galvanic isolation vs. ground-level translation; no native I²C clock stretching.	Used where safety isolation (IEC 61000-4-5) is required; not suitable for >72V ground offsets or direct I²C slave clock stretch.	Select ADUM1402ARWZ only when reinforced insulation certification is mandatory; MAX14842ATE+ preferred for cost-sensitive, high-offset, I²C-critical automotive interfaces.
SI8642ED-B-IS	4-channel capacitive isolator (5kV RMS), 150Mbps, 2.5–5.5V supplies; no bidirectional I²C support; requires external direction control for half-duplex protocols.	Targeted at high-speed digital isolation (USB, PCIe), not ground-referenced I²C or SPI translation across large DC offsets.	Choose SI8642ED-B-IS for bandwidth-critical non-I²C links; MAX14842ATE+ remains optimal for integrated 2Mbps I²C + 30Mbps unidirectional translation in automotive BMS.

Compared with ADUM1402ARWZ and SI8642ED-B-IS, the MAX14842ATE+ uniquely combines 72V ground tolerance, native I²C clock stretching, and mixed-direction channel integration in a single 4mm × 4mm package - delivering lower system-level BOM count, reduced layout area, and guaranteed automotive temperature operation without external support circuitry.

Availability

MAX14842ATE+ is available at Aetrix Electronics and suitable for automotive battery management, industrial PoE, medical isolated data acquisition, and body control module applications requiring stable component supply across extended temperature and high-reliability production cycles.

Supply support for MAX14842ATE+ 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 precision analog, mixed-signal, and high-reliability interface ICs for automotive, industrial, and communications markets.

The MAX14842ATE+ belongs to Maxim's ground-level translator product line, engineered specifically for high-voltage domain isolation in automotive and industrial systems where traditional optocouplers or digital isolators lack sufficient ground offset range or I²C protocol compliance.

FAQ

What is the maximum allowable ground potential difference for MAX14842ATE+?

The MAX14842ATE+ supports a ground potential difference of 0V ≤ (VGNDB − VGNDA) ≤ 72V, with GNDB required to be greater than or equal to GNDA. This specification is guaranteed over the full −40°C to +125°C operating temperature range and is validated per the device's absolute maximum ratings. Exceeding +72V risks permanent damage, and operation below 0V violates the polarity constraint stated in the datasheet.

Does MAX14842ATE+ support I²C clock stretching on both bidirectional channels?

Yes, MAX14842ATE+ natively supports I²C clock stretching on both bidirectional channels (I/OA1↔I/OB1 and I/OA2↔I/OB2). This capability is explicitly confirmed in the General Description and Applications Information sections of the official datasheet, and is enabled by the open-drain architecture and internal timing design that prevents latching during low-level hold conditions.

What are the supply voltage requirements for MAX14842ATE+?

MAX14842ATE+ requires two independent supplies: VDDA referenced to GNDA (3.0V to 5.5V) and VDDB referenced to GNDB (3.0V to 5.5V). Each supply must be bypassed with a 0.1µF ceramic capacitor placed close to its respective pin. The supplies may operate at different voltages (e.g., 3.3V on Side A, 5V on Side B) and do not require sequencing.

How does undervoltage lockout function in MAX14842ATE+?

MAX14842ATE+ features independent undervoltage lockout (UVLO) circuits on both VDDA and VDDB, triggering at 2.0V ±0.1V. During UVLO, all unidirectional outputs (OUTA1/OUTA2/OUTB1/OUTB2) are pulled high internally, while bidirectional pins (I/OA1/I/OA2/I/OB1/I/OB2) enter high-impedance state and rely on external pullups - ensuring predictable, glitch-free behavior during power-up, brownout, or transient events.

What package type and thermal characteristics apply to MAX14842ATE+?

MAX14842ATE+ is packaged in a 16-pin TQFN (4mm × 4mm) with exposed pad, designated T1644+4 per Maxim's package code. Its thermal characteristics include junction-to-ambient thermal resistance (θJA) of 40°C/W and junction-to-case (θJC) of 6°C/W, measured per JEDEC JESD51-7 on a four-layer board. The exposed pad must be soldered to GNDA for optimal thermal and electrical performance.

MAX14842ATE+ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:

Packaging:: Tube

Product Status:: Active

Translator Type:: Voltage Level

Channel Type:: Bidirectional

Number of Circuits:: 1

Channels per Circuit:: 6

Voltage - VCCA:: 3 V ~ 5.5 V

Voltage - VCCB:: 3 V ~ 5.5 V

Input Signal:: -

Output Signal:: -

Output Type:: Open Drain

Data Rate:: 30Mbps

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Features:: Power Supply Decoupling

Mounting Type:: Surface Mount

Supplier Device Package:: 16-WQFN Exposed Pad

MAX14842ATE+ FAQ

1.How can I place an order for MAX14842ATE+ through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX14842ATE+ 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 MAX14842ATE+ reliable?

The price and inventory of MAX14842ATE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14842ATE+ is usually 5 days.

3.What payment methods are accepted for MAX14842ATE+?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14842ATE+ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX14842ATE+?

MAX14842ATE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX14842ATE+ 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 MAX14842ATE+?

For technical support, including MAX14842ATE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14842ATE+ requirements.

6.How does Aetrix verify that MAX14842ATE+ is sourced from the original manufacturer or authorized distributors?

All MAX14842ATE+ 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 MAX14842ATE+ meets industry standards.

7.What is the process for return or replacement of MAX14842ATE+?

All MAX14842ATE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14842ATE+, 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 MAX14842ATE+ part is unused and in its original packaging.

Return procedure for MAX14842ATE+:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…