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Analog Devices Inc./Maxim Integrated MAX9140EXK+T
- Part No.:
- MAX9140EXK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX9140EXK+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,564
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Product details
Overview
MAX9140EXK+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, and 500μV typical offset voltage. It operates across –40°C to +85°C and is housed in a RoHS-compliant 5-pin SC70 package, enabling compact battery-powered threshold detection and line receiver designs.
For engineers reviewing the MAX9140EXK+T datasheet, MAX9140EXK+T pinout, MAX9140EXK+T application, or MAX9140EXK+T equivalent, this page delivers verified electrical parameters, validated SC70 pin mapping, real-world interface use cases with CMOS/TTL logic, and two confirmed alternative comparators for 3V/5V low-power high-speed design review.
Technical Context
The MAX9140EXK+T implements a bipolar process-based 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, while the current-driven output stage delivers VOH = VCC – 0.3V and VOL = 0.3V at 4mA load without external pull-ups.
It supports continuous short-circuit tolerance on all pins to either rail and features ±20mA absolute maximum input current capability. Unlike the MAX9141, it lacks latch enable (LE) and shutdown (SHDN) pins-its simplified 5-pin configuration reflects its role as a minimal-footprint, always-active high-speed comparator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns at 10mV overdrive - enables reliable sampling of >10MHz signals in timing-critical circuits |
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into both 3.3V and 5V logic domains without level shifting |
| Input Offset Voltage | 0.5–2.0mV (typical 0.5mV at +25°C) - ensures accurate threshold detection down to sub-millivolt differentials |
| Rail-to-Rail Input Range | –0.2V to VCC + 0.2V - allows direct sensing of signals crossing ground or near supply rails |
| Output Swing | VOL = 0.3V / VOH = VCC – 0.3V at 4mA - guarantees clean interfacing with standard CMOS and TTL inputs |
| Supply Current | 150μA per comparator at 3V - enables multi-channel monitoring in energy-constrained portable systems |
| Input Hysteresis | 1.5mV - eliminates chatter on noisy or slowly varying inputs without external feedback components |
Pinout & Package
MAX9140EXK+T is packaged in a 5-pin SC70 (X5+1 land pattern), measuring 2.0mm × 1.25mm × 0.9mm, with 0.65mm pitch and exposed pad not connected. This ultra-compact footprint supports high-density PCB layouts in space-constrained applications such as wearables and sensor nodes.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or tied to GND per layout best practice; no functional impact |
| 2 | OUT | Push-pull output - drives CMOS/TTL loads directly; sinks 4mA to 0.3V, sources 4mA to VCC – 0.3V |
| 3 | GND | Analog/digital ground reference - requires low-inductance connection to solid ground plane for noise immunity |
| 4 | IN+ | Noninverting input - accepts rail-to-rail common-mode signals; protected by back-to-back diodes and 4.1kΩ series resistors |
| 5 | VCC | Positive supply - decoupling capacitor (0.1μF ceramic) must be placed within 2mm for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| 40ns propagation delay | Enables precise zero-crossing detection in 4MHz sinusoidal inputs and fast edge discrimination in sampling circuits |
| Rail-to-rail input range | Supports direct interface to sensors whose outputs swing below GND or above VCC, eliminating level-shifting circuitry |
| Internal 1.5mV hysteresis | Prevents false triggering on EMI-prone traces or thermally drifting references without requiring external resistor networks |
| CMOS/TTL-compatible outputs | Eliminates need for pull-up resistors or buffer stages when driving microcontroller GPIOs or FPGA I/O banks |
| Continuous short-circuit tolerance | Withstands indefinite fault conditions on IN+, IN–, or OUT pins without latch-up or parametric shift - critical for industrial field interfaces |
Applications
| Line Receivers | Battery-Powered Threshold Detection |
|---|---|
Use Scenario: Receiving differential or single-ended signals over coaxial or twisted-pair lines in noisy industrial environments. IC Role / Device Role / Timing Role: Single-supply comparator converting analog line voltage swings into clean digital logic levels for MCU input or FPGA capture. Use Value: 40ns delay and rail-to-rail input allow accurate recovery of fast-edged line data even with ground offsets up to ±0.2V. |
Use Scenario: Monitoring battery voltage or sensor output in portable medical devices or IoT endpoints with strict power budgets. IC Role / Device Role / Timing Role: Low-quiescent-current threshold detector triggering wake-up or alert logic upon crossing preset voltage levels. Use Value: 150μA supply current extends battery life; 500μV offset ensures precise trip-point accuracy across temperature. |
| Zero-Crossing Detectors | 3V/5V System Interface Logic |
Use Scenario: Detecting AC waveform zero crossings in motor control, dimmer circuits, or power metering applications. IC Role / Device Role / Timing Role: High-speed comparator comparing AC signal against ground reference to generate synchronized digital edges. Use Value: Internal hysteresis rejects noise-induced false triggers; rail-to-rail input accommodates full-wave rectified or transformer-coupled inputs. |
Use Scenario: Level translation and signal conditioning between mixed-voltage subsystems (e.g., 3.3V MCU to 5V actuator driver). IC Role / Device Role / Timing Role: Comparator acting as voltage window detector or logic state translator in system interconnect paths. Use Value: Output swing to within 0.3V of rails ensures robust noise margin when interfacing across 3V/5V logic families. |
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 |
|---|---|---|---|
| TLV3501DBVR | 3.5ns propagation delay, 2.7–5.5V supply, 2.5mV offset, no internal hysteresis | Requires external hysteresis resistors for noise immunity; better suited for <10ns timing-critical paths | Select when sub-10ns response is mandatory and board area permits external feedback network |
| LMV7215M5X | 120ns propagation delay, 1.8–5.5V supply, 3.5mV offset, rail-to-rail input/output, no hysteresis | Lacks internal hysteresis and short-circuit tolerance; lower speed but wider supply range | Choose for cost-sensitive, non-noisy 1.8V–3.3V systems where 120ns delay is acceptable |
Compared with TLV3501DBVR and LMV7215M5X, the MAX9140EXK+T uniquely balances 40ns speed, built-in 1.5mV hysteresis, rail-to-rail operation, and fault-tolerant I/O - making it optimal for robust, compact 3V/5V threshold detection where layout space and noise immunity are constrained.
Availability
MAX9140EXK+T is available at Aetrix Electronics and suitable for battery-powered systems, line receivers, zero-crossing detectors, and 3V/5V interface logic requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX9140EXK+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 precision instrumentation, industrial automation, and communications markets.
The MAX9140EXK+T belongs to the MAX914x family of high-speed comparators designed specifically for low-power, rail-to-rail operation in portable and noise-sensitive 3V/5V systems - emphasizing speed, accuracy, and fault resilience without external components.
FAQ
What is the operating temperature range for MAX9140EXK+T?
The MAX9140EXK+T is rated for operation from –40°C to +85°C (E-grade). This range is fully specified and production-tested, supporting deployment in consumer, industrial, and automotive cabin environments where ambient temperatures remain within these limits. The device's bipolar process ensures stable offset and propagation delay performance across the full span.
Does MAX9140EXK+T include shutdown or latch functionality?
No, the MAX9140EXK+T does not include shutdown (SHDN) or latch enable (LE) functionality. These features are exclusive to the MAX9141 variant. The MAX9140EXK+T is a dedicated single-comparator device with only five pins (VCC, GND, IN+, IN–, OUT), optimized for minimal footprint and lowest possible quiescent current in always-on applications.
What package type is used for MAX9140EXK+T, and is it RoHS-compliant?
MAX9140EXK+T uses the 5-pin SC70 package (package code X5+1), with top mark "+ACC". The "+" suffix confirms it is lead(Pb)-free and RoHS-compliant. Its dimensions are 2.0mm × 1.25mm × 0.9mm, and it follows land pattern 90-0188 - enabling high-density placement in space-constrained PCBs for portable electronics.
Can MAX9140EXK+T drive TTL and CMOS logic directly?
Yes, MAX9140EXK+T outputs swing to within 0.3V of both supply rails (VOH = VCC – 0.3V, VOL = 0.3V at 4mA), meeting standard TTL and CMOS input voltage thresholds across its full operating range. No external pull-up resistors or buffer stages are required, simplifying interface design and reducing BOM count.
What is the input common-mode voltage range of MAX9140EXK+T?
The input common-mode voltage range of MAX9140EXK+T extends from –0.2V to VCC + 0.2V. This rail-to-rail capability allows the device to accept signals that go slightly beyond the supply rails - critical for interfacing with transducers, op-amp outputs, or AC-coupled sources without clamping diodes or level-shifting circuitry.
MAX9140EXK+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:
- Active
- Type:
- General Purpose
- 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):
- 300µA
- 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
- :
- SC-70-5
MAX9140EXK+T FAQ
1.How can I place an order for MAX9140EXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9140EXK+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 MAX9140EXK+T reliable?
The price and inventory of MAX9140EXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9140EXK+T is usually 5 days.
3.What payment methods are accepted for MAX9140EXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9140EXK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9140EXK+T?
MAX9140EXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9140EXK+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 MAX9140EXK+T?
For technical support, including MAX9140EXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9140EXK+T requirements.
6.How does Aetrix verify that MAX9140EXK+T is sourced from the original manufacturer or authorized distributors?
All MAX9140EXK+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 MAX9140EXK+T meets industry standards.
7.What is the process for return or replacement of MAX9140EXK+T?
All MAX9140EXK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9140EXK+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 MAX9140EXK+T part is unused and in its original packaging.
Return procedure for MAX9140EXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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