My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9140AAXK/V+T
- Part No.:
- MAX9140AAXK/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX9140AAXK/V+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9140AAXK/V+T from Analog Devices is a single high-speed rail-to-rail input comparator optimized for 3V/5V single-supply systems, featuring 40ns propagation delay, 150μA supply current per comparator (at 3V), 500μV typical offset voltage, and AEC-Q100 qualification for automotive use. It operates across –40°C to +125°C and delivers CMOS/TTL-compatible outputs swinging within 300mV of either rail.
For engineers reviewing the MAX9140AAXK/V+T datasheet, MAX9140AAXK/V+T pinout, MAX9140AAXK/V+T application, or MAX9140AAXK/V+T equivalent, this device is selected for precision threshold detection, battery-powered line receivers, and zero-crossing circuits where low power, fast response, and rail-to-rail input operation are critical in automotive-grade designs.
Technical Context
The MAX9140AAXK/V+T implements a bipolar process comparator core with internal 1.5mV hysteresis to suppress oscillation during slow input transitions. Its rail-to-rail input stage accepts common-mode voltages from –0.2V to VCC + 0.2V, and its current-driven output stage delivers VOH ≥ VCC – 0.425V and VOL ≤ 0.425V at 4mA load.
It supports continuous short-circuit tolerance on all pins to either rail and exhibits 80dB CMRR and PSRR over temperature. Unlike MAX9141 variants, it lacks latch enable (LE) and shutdown (SHDN) functions-its simplified 5-pin configuration reflects its role as a dedicated high-speed analog comparator without digital control features.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns at 10mV overdrive - enables reliable sampling of >10MHz signals in timing-critical discriminators. |
| Supply Current | 150μA per comparator at 3V - allows integration into always-on battery-powered sensors without compromising runtime. |
| Input Offset Voltage | 0.5–2.0mV (typical 0.5mV at +25°C) - ensures accurate threshold detection down to sub-millivolt levels. |
| Rail-to-Rail Input Range | –0.2V to VCC + 0.2V - permits direct interface with transducers and DACs operating near supply rails. |
| Output Swing | VOL ≤ 0.425V / VOH ≥ VCC – 0.425V at 4mA - guarantees clean logic-level compatibility with 3.3V/5V CMOS and TTL without pull-ups. |
| Operating Temperature | –40°C to +125°C (A grade) - meets under-hood automotive requirements per AEC-Q100 Grade 0. |
| Input Hysteresis | 1.5mV - eliminates chatter on noisy or slowly varying inputs without external feedback components. |
Pinout & Package
MAX9140AAXK/V+T is housed in a 5-pin SC70 package (package code X5+1), footprint compatible with land pattern 90-0188, measuring 2.0mm × 1.25mm × 0.95mm. This ultra-small outline supports high-density PCB layouts in space-constrained automotive modules and portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N.C. | No Connection | Internally unconnected; must be left floating or tied to GND per layout best practice - no functional impact. |
| 2 - OUT | Comparator Output | CMOS/TTL-compatible active-pull output; sinks up to 4mA, sources up to 4mA; no external pull-up required. |
| 3 - GND | Analog Ground Reference | Primary return path for input stage and output driver; requires low-inductance connection to system ground plane. |
| 4 - IN+ | Noninverting Input | Differential input node with rail-to-rail common-mode range; protected by back-to-back diodes and 4.1kΩ series resistors. |
| 5 - VCC | Positive Supply | Accepts 2.7V to 5.5V; decoupling capacitor (0.1μF ceramic) must be placed adjacent to this pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified (Grade 0) | Validated for automotive applications requiring –40°C to +125°C operation and robust ESD/latch-up immunity. |
| Internal 1.5mV Hysteresis | Eliminates need for external positive feedback resistors - reduces BOM count and layout sensitivity in noise-prone environments. |
| Rail-to-Rail Input Stage | Supports direct interfacing with ±100mV sensor outputs or DACs referenced to VCC/GND without level-shifting circuitry. |
| Low 150μA Quiescent Current | Enables microampere-level system sleep modes while retaining fast wake-up response for event-triggered sensing. |
| Short-Circuit Tolerant I/O | All pins withstand continuous fault conditions to VCC or GND - improves reliability in harsh automotive electrical environments. |
Applications
| Line Receivers | Battery-Powered Systems |
|---|---|
Use Scenario: Receiving differential or single-ended analog signals over coaxial or twisted-pair lines in automotive infotainment head units. IC Role / Device Role / Timing Role: High-speed comparator acting as a clean digital edge generator, converting analog line-level signals into noise-immune logic pulses. Use Value: 40ns propagation delay ensures minimal jitter in recovered clock/data edges; rail-to-rail input accommodates variable signal amplitudes without clipping. | Use Scenario: Monitoring battery voltage thresholds in portable medical devices or wireless sensor nodes with coin-cell power sources. IC Role / Device Role / Timing Role: Precision threshold detector triggering low-power MCU wake-up or LED alerts when voltage crosses predefined limits. Use Value: 150μA supply current extends battery life; 0.5mV offset voltage enables accurate detection of small voltage changes across aging cells. |
| Zero-Crossing Detectors | 3V/5V Systems |
Use Scenario: Detecting AC waveform zero crossings in automotive HVAC motor controllers or lighting dimmers. IC Role / Device Role / Timing Role: Comparator comparing AC input against 0V reference to generate synchronized timing pulses for TRIAC/SSR firing. Use Value: Internal hysteresis prevents false triggering on noisy zero crossings; rail-to-rail input handles full AC swing without external biasing. | Use Scenario: Level translation and signal conditioning in mixed-voltage industrial PLC I/O modules using both 3.3V and 5V logic domains. IC Role / Device Role / Timing Role: Single-supply comparator bridging voltage domains - accepting 3V sensor outputs and driving 5V controller inputs. Use Value: CMOS/TTL-compatible output swing ensures reliable logic-level recognition; 2.7V–5.5V supply range simplifies shared power rail design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9140AAUK+T | Same electrical specs and AEC-Q100 qualification; differs only in SOT23-5 package (U5-1) vs. SC70-5 (X5+1). | Suitable where board space allows larger 2.9mm × 1.6mm SOT23 footprint and thermal derating margin is higher (571mW vs. 247mW). | Select MAX9140AAUK+T if preferred for hand-soldering or thermal performance; otherwise MAX9140AAXK/V+T offers superior density. |
| TLV3501DBVR | 4.5ns propagation delay, 2.7–5.5V supply, but not AEC-Q100 qualified; offset voltage 3.5mV (max); no internal hysteresis. | Applicable in non-automotive high-speed test equipment or FPGA timing capture where speed outweighs qualification and hysteresis needs. | Choose TLV3501DBVR only for non-automotive designs requiring <5ns delay; MAX9140AAXK/V+T remains optimal for AEC-Q100-compliant, hysteresis-enabled applications. |
Compared with MAX9140AAUK+T, MAX9140AAXK/V+T provides identical performance in a smaller SC70 package ideal for space-constrained automotive modules, while TLV3501DBVR trades AEC-Q100 compliance and built-in hysteresis for raw speed - making MAX9140AAXK/V+T the balanced choice for qualified, robust, medium-speed threshold detection.
Availability
MAX9140AAXK/V+T is available at Aetrix Electronics and suitable for automotive line receivers, battery voltage monitors, zero-crossing detectors, and 3V/5V mixed-signal interfaces requiring stable component supply and AEC-Q100 assurance.
Supply support for MAX9140AAXK/V+T 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX9140 series belongs to Analog Devices' precision high-speed comparator product line, designed specifically for automotive-grade, low-power, rail-to-rail sensing and signal conditioning in safety-critical and battery-sensitive applications.
FAQ
What is the operating temperature range for MAX9140AAXK/V+T?
The MAX9140AAXK/V+T is rated for –40°C to +125°C operation (A grade), fully qualified to AEC-Q100 Grade 0 standards. This extended range supports under-hood automotive deployment, including engine control units and transmission sensors where ambient temperatures exceed standard commercial limits. The MAX9140AAXK/V+T maintains specified propagation delay, offset voltage, and output drive capability across this full span.
Does MAX9140AAXK/V+T include latch or shutdown functionality?
No, MAX9140AAXK/V+T does not include latch enable (LE) or shutdown (SHDN) pins. These features are exclusive to the MAX9141 variant. The MAX9140AAXK/V+T is a dedicated single comparator with a minimal 5-pin SC70 footprint - optimized for simplicity, size, and cost in applications requiring only high-speed comparison without digital control overhead.
What package type and dimensions does MAX9140AAXK/V+T use?
MAX9140AAXK/V+T uses a 5-pin SC70 package (X5+1), measuring 2.0mm × 1.25mm × 0.95mm with a 0.65mm pitch. Its land pattern is documented as 90-0188. This ultra-compact outline enables high-density routing in automotive ADAS modules and portable diagnostic tools where board area is strictly constrained.
Is MAX9140AAXK/V+T RoHS-compliant and lead-free?
Yes, MAX9140AAXK/V+T is RoHS-compliant and lead-free, indicated by the "+" suffix in its part number and package marking (+AUG). It conforms to EU Directive 2011/65/EU and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life at ≤30°C/60% RH without dry-pack requirements.
How does the internal hysteresis of MAX9140AAXK/V+T improve system reliability?
The MAX9140AAXK/V+T integrates a fixed 1.5mV input-referred hysteresis zone that creates distinct upper and lower trip points, preventing output oscillation during slow or noisy input transitions. This eliminates the need for external hysteresis resistors, reducing component count and layout sensitivity - especially valuable in automotive environments where EMI and thermal drift can destabilize marginal comparator decisions.
MAX9140AAXK/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- 0.35µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 400µA
- Current - Quiescent (Max):
- 61.41dB CMRR, 61.94dB PSRR
- CMRR, PSRR (Typ):
- 40ns
- Propagation Delay (Max):
- 1.5mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- SC-70-5
MAX9140AAXK/V+T FAQ
1.How can I place an order for MAX9140AAXK/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9140AAXK/V+T 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 MAX9140AAXK/V+T reliable?
The price and inventory of MAX9140AAXK/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9140AAXK/V+T is usually 5 days.
3.What payment methods are accepted for MAX9140AAXK/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9140AAXK/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9140AAXK/V+T?
MAX9140AAXK/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9140AAXK/V+T 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 MAX9140AAXK/V+T?
For technical support, including MAX9140AAXK/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9140AAXK/V+T requirements.
6.How does Aetrix verify that MAX9140AAXK/V+T is sourced from the original manufacturer or authorized distributors?
All MAX9140AAXK/V+T 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 MAX9140AAXK/V+T meets industry standards.
7.What is the process for return or replacement of MAX9140AAXK/V+T?
All MAX9140AAXK/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9140AAXK/V+T, 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 MAX9140AAXK/V+T part is unused and in its original packaging.
Return procedure for MAX9140AAXK/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9140AAXK/V+T Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
Tech Hub
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…
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…
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
