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Analog Devices Inc./Maxim Integrated MAX9141ESA-T
- Part No.:
- MAX9141ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9141ESA-T.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,351
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Product details
Overview
The MAX9141ESA-T from Analog Devices is a single high-speed rail-to-rail input comparator with latch enable and shutdown functionality, optimized for 3V/5V systems. It delivers 40ns propagation delay, 150μA supply current per comparator at 3V, and 500μV offset voltage, enabling precise threshold detection in battery-powered instrumentation and line receivers.
For engineers reviewing the MAX9141ESA-T datasheet, MAX9141ESA-T pinout, MAX9141ESA-T application, or MAX9141ESA-T equivalent, key selection criteria include latch-controlled sampling timing, shutdown current reduction to 12μA, rail-to-rail input operation beyond supply rails, and CMOS/TTL-compatible push-pull output without external pullups.
Technical Context
The MAX9141ESA-T implements a bipolar process comparator core with internal 1.5mV hysteresis to suppress oscillation on slow-moving inputs. Its input stage tolerates continuous short-circuit faults to either rail and supports common-mode voltages from –0.2V to VCC + 0.2V.
The device integrates dual control functions: LE (latch enable) provides transparent/latched output modes with 16ns setup/hold times, while SHDN (shutdown) reduces ICC to ≤30μA and places the output in high-impedance state - both pins accept logic thresholds of (VCC/2) ±0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns at 10mV overdrive - enables sub-25MHz sampling in zero-crossing or threshold-detection circuits |
| Supply Current | 150μA per comparator at 3V - supports multi-year battery life in portable sensors and IoT endpoints |
| Input Offset Voltage | 0.5–2.0mV (typical 0.5mV) - ensures <10mV total error budget in precision 3.3V reference comparators |
| Rail-to-Rail Input Range | –0.2V to VCC + 0.2V - allows direct interface to transducers or DACs operating outside supply rails |
| Output Voltage Swing | VOL = 0.3V / VOH = VCC – 0.3V at 4mA - drives standard CMOS/TTL loads without level-shifting or pullup resistors |
| Shutdown Current | ≤30μA (max 12μA typical) - reduces system standby power by >90% vs active mode |
| Latch Propagation Delay | 60ns - defines minimum pulse width for reliable data capture in synchronous sampling applications |
Pinout & Package
MAX9141ESA-T is housed in an 8-pin SO (Small Outline) package with 150mil body width and standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must remain unconnected or grounded per layout guidelines |
| 2 | OUT | Push-pull comparator output - sinks 4mA / sources 4mA, swings within 300mV of rails |
| 3 | GND | Analog ground reference - requires low-inductance connection to PCB ground plane |
| 4 | LE | Latch enable input - high = transparent mode, low = latched output; high-impedance CMOS input |
| 5 | SHDN | Shutdown control - high = active, low = shutdown; draws <10μA in shutdown state |
| 6 | IN− | Inverting input - rail-to-rail capable, protected against ±20mA continuous fault current |
| 7 | IN+ | Noninverting input - same protection and voltage range as IN−; differential input tolerance up to ±1.4V |
| 8 | VCC | Positive supply - operates from 2.7V to 5.5V; requires local 0.1μF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Internal 1.5mV hysteresis | Eliminates need for external feedback resistors in noisy environments while ensuring clean switching on slow edges |
| Latch enable (LE) function | Enables synchronous sampling with 45ns minimum latch pulse width and deterministic 60ns propagation through latch path |
| Shutdown mode (SHDN) | Reduces quiescent current to <12μA and places output in high-Z state - critical for power-gated sensor nodes |
| Rail-to-rail input beyond supplies | Accepts inputs down to –0.2V and up to VCC + 0.2V - supports direct connection to op-amp outputs or thermocouple amplifiers |
| CMOS/TTL-compatible output | Drives standard logic families directly without pullup resistors - simplifies BOM and board space in mixed-voltage systems |
Applications
| Line Receivers | Battery-Powered Systems |
|---|---|
Use Scenario: Converting differential analog signals from coaxial or twisted-pair lines into clean digital logic levels in industrial fieldbus interfaces. IC Role / Device Role / Timing Role: High-speed comparator with rail-to-rail input captures small-swing line signals; latch synchronizes reception to system clock. Use Value: 40ns delay and 1.5mV hysteresis reject EMI-induced noise on long cables while maintaining signal integrity at >10Mbps rates. | Use Scenario: Monitoring battery voltage against programmable thresholds in portable medical devices or wireless sensors. IC Role / Device Role / Timing Role: Low-power threshold detector that triggers wake-up or alert logic when cell voltage crosses safe limits. Use Value: 150μA supply current extends battery life; shutdown mode (<12μA) enables multi-year operation in sleep-wake cycles. |
| Threshold Detectors/Discriminators | Zero-Crossing Detectors |
Use Scenario: Detecting overvoltage/undervoltage conditions in DC power rails or analog sensor outputs. IC Role / Device Role / Timing Role: Precision comparator with 0.5mV typical offset and internal hysteresis prevents chatter near trip points. Use Value: Fixed 1.5mV hysteresis eliminates external components and guarantees stable decision boundaries under temperature drift. | Use Scenario: Identifying AC waveform polarity transitions in motor control or audio signal processing. IC Role / Device Role / Timing Role: Fast comparator with rail-to-rail input senses crossing of 0V reference with minimal delay uncertainty. Use Value: 40ns propagation delay and <2ns skew ensure accurate phase alignment across multiple channels in polyphase systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9141EKA+T | Same die, 8-pin SOT23 package - 3.0mm × 3.0mm footprint vs SO's 4.9mm × 6.0mm | Preferred for space-constrained PCBs where thermal mass and trace routing favor SOT23 | Select when board area is limited and thermal dissipation requirements allow smaller package |
| TLV3501CDR | 4.5ns propagation delay, higher 2.9mA supply current, no latch/shutdown - CMOS process | Better for ultra-high-speed (>100MHz) window comparators but unsuitable for battery-critical designs | Choose only when speed dominates power and control features; not drop-in compatible due to different pinout and feature set |
Compared with MAX9141ESA-T, the MAX9141EKA+T offers identical electrical performance in a smaller footprint but reduced thermal capacity, while TLV3501CDR trades 10× higher speed for 20× higher current and lacks latch/shutdown - making MAX9141ESA-T optimal for balanced 3V/5V portable systems requiring controlled sampling and low standby power.
Availability
MAX9141ESA-T is available at Aetrix Electronics and suitable for line receivers, battery-powered instrumentation, and threshold-detection systems requiring stable component supply across automotive, industrial, and medical product lifecycles.
Supply support for MAX9141ESA-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 MAX9141ESA-T belongs to the MAX914x family of rail-to-rail, low-power comparators designed specifically for 3V/5V portable and battery-operated systems requiring fast response, latch control, and ultra-low shutdown current.
FAQ
What is the maximum supply voltage rating for the MAX9141ESA-T?
The MAX9141ESA-T has an absolute maximum supply voltage (VCC to GND) of +6V. However, its specified operating range is 2.7V to 5.5V. Exceeding 5.5V may cause permanent damage or parametric shift, and operation above 6V violates absolute maximum ratings - always maintain VCC within 2.7V–5.5V for reliable function and longevity of the MAX9141ESA-T.
Does the MAX9141ESA-T require external pullup resistors on its output?
No, the MAX9141ESA-T does not require external pullup resistors. Its push-pull output stage actively drives high (to VCC – 0.3V) and low (to 0.3V) at 4mA, making it fully compatible with CMOS and TTL logic families without external components - a key design advantage confirmed in the MAX9141ESA-T datasheet and application schematics.
How does the latch function operate on the MAX9141ESA-T?
The MAX9141ESA-T latch is controlled by the LE pin: when LE is high, the output is transparent (follows input changes); when LE is pulled low, the current output state is held until LE returns high. The latch has 16ns setup/hold time and 60ns propagation delay - all timing parameters are guaranteed across –40°C to +85°C for the MAX9141ESA-T.
What is the input common-mode voltage range of the MAX9141ESA-T?
The MAX9141ESA-T supports an input common-mode voltage range from –0.2V to VCC + 0.2V, extending beyond both supply rails. This rail-to-rail capability allows direct interfacing with transducers, op-amps, or DACs whose outputs swing outside the VCC–GND window - a verified specification across temperature for the MAX9141ESA-T.
Can the MAX9141ESA-T be used in automotive applications?
The MAX9141ESA-T is rated for the extended industrial temperature range (–40°C to +85°C) and meets JEDEC standards for reliability, but it is not AEC-Q100 qualified. For automotive applications requiring qualification, Analog Devices offers the MAX9140AAXK/V+T variant - the MAX9141ESA-T itself is intended for industrial, medical, and portable consumer systems.
MAX9141ESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- with Latch
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 0.32µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 320µA
- Current - Quiescent (Max):
- 81.94dB CMRR, 81.94dB PSRR
- CMRR, PSRR (Typ):
- 40ns
- Propagation Delay (Max):
- 1.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX9141ESA-T FAQ
1.How can I place an order for MAX9141ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9141ESA-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 MAX9141ESA-T reliable?
The price and inventory of MAX9141ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9141ESA-T is usually 5 days.
3.What payment methods are accepted for MAX9141ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9141ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9141ESA-T?
MAX9141ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9141ESA-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 MAX9141ESA-T?
For technical support, including MAX9141ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9141ESA-T requirements.
6.How does Aetrix verify that MAX9141ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX9141ESA-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 MAX9141ESA-T meets industry standards.
7.What is the process for return or replacement of MAX9141ESA-T?
All MAX9141ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9141ESA-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 MAX9141ESA-T part is unused and in its original packaging.
Return procedure for MAX9141ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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