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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:2,269
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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, delivering 40ns propagation delay, 150μA supply current per comparator, and 500μV typical offset voltage. It features rail-to-rail inputs extending beyond both supply rails, CMOS/TTL-compatible push-pull outputs swinging within 300mV of VCC or GND, and internal 1.5mV hysteresis - ideal for precision threshold detection in battery-powered instrumentation.
For engineers reviewing the MAX9140EXK-T datasheet, MAX9140EXK-T pinout, MAX9140EXK-T application, or MAX9140EXK-T equivalent, this page delivers verified electrical parameters, SC70-5 package mapping, real-world interface behavior with CMOS/TTL loads, and validated alternative comparators for low-power, high-speed analog decision-making circuits.
Technical Context
The MAX9140EXK-T employs a bipolar process with internally trimmed input stage to achieve 500μV typical offset and 1.5mV hysteresis - eliminating external feedback resistors. Its rail-to-rail input common-mode range (–0.2V to VCC + 0.2V) and output swing (VOL = 0.425V, VOH = VCC – 0.425V at 4mA) enable direct interfacing with 3V logic without level-shifting.
Propagation delay is tightly controlled at 40ns (10mV overdrive, VCC = 3V/5V), with differential skew <2ns and temperature-stable performance across –40°C to +85°C. Input bias current remains ≤320nA over temperature, and short-circuit tolerance on all pins supports robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns at 10mV overdrive - enables reliable sampling of >10MHz signals in zero-crossing or timing-critical discriminators. |
| Supply Current | 150μA per comparator at 3V - supports multi-channel sensing in energy-constrained portable devices. |
| Input Offset Voltage | 0.5–2.0mV (typical 0.5mV) - ensures accurate threshold detection down to sub-millivolt signal differentials. |
| Rail-to-Rail Input Range | –0.2V to VCC + 0.2V - accepts inputs below GND or above VCC, simplifying sensor interface in mixed-voltage systems. |
| Output Swing | VOL = 0.425V / VOH = VCC – 0.425V at 4mA - directly drives standard CMOS and TTL logic without pull-up resistors. |
| Input Hysteresis | 1.5mV - suppresses chatter on slow-moving or noisy inputs without external components. |
| Operating Supply | 2.7V to 5.5V - compatible with Li-ion, 3.3V, and 5V rails without regulation overhead. |
Pinout & Package
MAX9140EXK-T is housed in a RoHS-compliant 5-pin SC70 package (package code X5+1), footprint-compatible with SOT23-5 but 30% smaller (2.0mm × 1.25mm). Thermal resistance θJA = 322°C/W; max power dissipation = 247mW at +70°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or grounded; no routing required. |
| 2 | OUT | Push-pull output - sinks 4mA or sources 4mA; no external pull-up needed for TTL/CMOS compatibility. |
| 3 | GND | Analog ground reference - requires low-inductance connection to PCB ground plane for noise immunity. |
| 4 | IN– | Inverting input - accepts rail-to-rail voltages; protected against ±20mA continuous fault current. |
| 5 | VCC | Positive supply - decoupling capacitor (0.1μF ceramic) must be placed within 2mm for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Supports input signals from –0.2V to VCC + 0.2V - eliminates level-shifting circuitry for sensors operating outside supply rails. |
| Internal 1.5mV hysteresis | Prevents oscillation on slow or noisy inputs - removes need for external positive feedback resistors. |
| CMOS/TTL-compatible output | Drives 4mA loads while staying within VOH/VOL specs - interfaces directly to FPGA I/O, microcontroller GPIO, or logic gates. |
| Low 150μA quiescent current | Enables always-on monitoring in battery-powered systems with multi-year runtime (e.g., IoT node wake-up detectors). |
| Robust ESD & fault tolerance | Withstands continuous short-circuit to VCC or GND on all pins - improves field reliability in industrial wiring environments. |
Applications
| Line Receivers | Battery-Powered Threshold Detection |
|---|---|
|
Use Scenario: Converting differential or single-ended analog line signals (e.g., RS-422, coaxial video sync) into clean digital logic levels in communication interfaces. IC Role / Device Role / Timing Role: High-speed comparator acting as a noise-immune line receiver front-end, rejecting common-mode interference while preserving edge integrity. Use Value: 40ns propagation delay and 1.5mV hysteresis ensure jitter-free digital recovery of fast transitions, even with 10mV signal overdrive. |
Use Scenario: Monitoring battery voltage or sensor output against programmable thresholds in wearables or remote sensors. IC Role / Device Role / Timing Role: Precision threshold discriminator enabling ultra-low-power wake-up events via comparator output interrupt. Use Value: 150μA supply current and rail-to-rail input allow direct connection to Li-ion cells (2.7–4.2V) without voltage scaling or regulator overhead. |
| Zero-Crossing Detectors | 3V/5V System Interface Adapters |
|
Use Scenario: Detecting AC waveform zero crossings for phase-controlled dimmers, motor commutation, or power metering. IC Role / Device Role / Timing Role: Fast, low-offset comparator generating precise timing edges synchronized to sinusoidal inputs. Use Value: 500μV offset and 40ns delay minimize timing error (<1° at 50Hz), critical for accurate power factor correction. |
Use Scenario: Bridging legacy 5V logic domains with modern 3.3V or 2.5V microcontrollers in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: Level-translating comparator providing deterministic logic-level translation without direction control pins. Use Value: Rail-to-rail inputs accept 0–5V signals; push-pull outputs drive 3.3V CMOS loads to valid VOH/VOL - no external biasing required. |
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 |
|---|---|---|---|
| LMV7215MF/NOPB | 45ns delay, 120μA supply current, 3.5mV offset, no internal hysteresis - requires external resistor network. | Lacks integrated hysteresis; suitable only where external feedback is acceptable and lower offset not critical. | Choose when lowest quiescent current is prioritized over guaranteed chatter-free switching on noisy inputs. |
| TLV3501DBVR | 4.5ns delay, 8.5mA supply current, 6.5mV offset, rail-to-rail output only - input range limited to GND–VCC. | Higher speed but 57× higher supply current; unsuitable for battery operation or space-constrained SC70 layouts. | Choose only for ultra-high-speed (>100MHz) applications where power budget and board area permit SO-6 packaging. |
Compared with LMV7215MF/NOPB and TLV3501DBVR, the MAX9140EXK-T uniquely balances 40ns speed, 150μA power, 500μV offset, and built-in hysteresis in a 5-pin SC70 - making it the optimal choice for compact, battery-aware systems requiring deterministic switching without design overhead.
Availability
MAX9140EXK-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial line receivers, zero-crossing detection circuits, and 3V/5V mixed-signal interface designs requiring stable component supply across extended temperature ranges.
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 industrial, automotive, communications, and healthcare markets.
The MAX9140EXK-T belongs to the MAX914x family of single-supply comparators designed specifically for low-power, high-speed decision-making in portable and space-constrained systems - emphasizing rail-to-rail operation, minimal external components, and robust fault tolerance.
FAQ
What is the maximum operating supply voltage for the MAX9140EXK-T?
The MAX9140EXK-T supports an absolute maximum supply voltage of +6V between VCC and GND. However, its specified operating range is 2.7V to 5.5V. Operating beyond 5.5V voids parametric guarantees and risks permanent damage - always limit VCC to ≤5.5V in production designs using MAX9140EXK-T.
Does the MAX9140EXK-T include internal hysteresis, and what is its value?
Yes, the MAX9140EXK-T includes fixed internal hysteresis of 1.5mV (input-referred), which prevents output oscillation on slow-moving or noisy inputs. This eliminates the need for external hysteresis resistors and ensures clean switching behavior - a confirmed specification documented in the Electrical Characteristics table of the MAX9140EXK-T datasheet.
Can the MAX9140EXK-T interface directly with 3.3V CMOS logic?
Yes, the MAX9140EXK-T can interface directly with 3.3V CMOS logic. Its output drives VOH ≥ 2.875V and VOL ≤ 0.425V at 4mA load under 3.3V supply - meeting standard 3.3V CMOS VIH (≥2.0V) and VIL (≤0.8V) thresholds without external pull-ups or level shifters.
What is the input common-mode voltage range of the MAX9140EXK-T?
The MAX9140EXK-T supports an input common-mode voltage range from –0.2V to VCC + 0.2V. This rail-to-rail capability allows inputs to extend 200mV below GND or above VCC - enabling direct connection to transducers or sensors operating outside the supply domain, as verified in the Absolute Maximum Ratings and Electrical Characteristics sections for MAX9140EXK-T.
Is the MAX9140EXK-T pin-compatible with other variants in the MAX914x family?
No, the MAX9140EXK-T is not pin-compatible with MAX9141, MAX9142, or MAX9144. It uses a 5-pin SC70 package with pins: N.C., OUT, GND, IN–, VCC. Other variants use 8-pin or 14-pin packages with additional pins (e.g., LE, SHDN, multiple inputs/outputs) - PCB layout must be specific to MAX9140EXK-T.
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:
- Obsolete
- 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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