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Analog Devices Inc./Maxim Integrated MAX9012EUA-T
- Part No.:
- MAX9012EUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9012EUA-T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,835
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Product details
Overview
MAX9012EUA-T from Maxim Integrated is a dual, high-speed, precision TTL comparator operating from a single 4.5V to 5.5V supply. It features 5ns typical propagation delay, ±5.5mV input offset voltage over temperature, and stable operation with slow-moving or low-overdrive inputs - ideal for zero-crossing detection and high-speed sampling circuits in industrial and test equipment.
For engineers reviewing the MAX9012EUA-T datasheet, MAX9012EUA-T pinout, MAX9012EUA-T application, or MAX9012EUA-T equivalent, this page delivers verified electrical parameters, µMAX-8 package details, latch-free dual-channel timing behavior, and real-world use context for signal conditioning and fast edge detection in 5V systems.
Technical Context
The MAX9012EUA-T implements fully differential bipolar input amplifiers with no built-in hysteresis, enabling high-resolution comparison without resolution loss. Its input common-mode range extends from –0.2V to (VCC – 1.9V), supporting ground-referenced signals and negative transients up to 200mV below GND without output phase reversal.
Each comparator channel operates independently with TTL-compatible outputs, 2.4mA typical supply current per device, and matched propagation delays (channel-to-channel skew ≤500ps). The absence of latch logic distinguishes it from MAX9011/MAX9013 variants, simplifying timing-critical trigger and squaring applications requiring transparent analog-to-digital decision paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 5ns typical at 100mV overdrive; enables sub-200MHz signal edge detection with deterministic timing. |
| Input Offset Voltage | ±5.5mV max over –40°C to +85°C; ensures accurate threshold detection across industrial temperature range. |
| Supply Voltage Range | 4.5V to 5.5V single supply; compatible with standard 5V logic rails and LDO-regulated systems. |
| Input Common-Mode Range | –0.2V to (VCC – 1.9V); supports ground-referenced AC signals and small negative excursions without clipping. |
| Output Type | TTL-compatible push-pull; drives standard logic loads directly without external pull-ups or level shifters. |
| Quiescent Current | 2.4mA typical at +25°C; balances speed and power for battery-adjacent or thermally constrained designs. |
| Channel-to-Channel Skew | ≤500ps; critical for synchronized dual-comparator functions like window detection or differential pair monitoring. |
Pinout & Package
The MAX9012EUA-T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with industry-standard SO-8 but with 55% smaller footprint and improved thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A output; active-high TTL logic level, sinks 4mA or sources 4mA into 50Ω load. |
| 2 | INA− | Inverting input for Channel A; differential pair node with ±2µA max input bias current. |
| 3 | INA+ | Noninverting input for Channel A; matched to INA− for <7mV offset and >75dB CMRR. |
| 4 | INB− | Inverting input for Channel B; electrically isolated from Channel A, supports independent signal paths. |
| 5 | VCC | Positive supply rail; requires local 0.1µF ceramic bypass capacitor to minimize switching noise coupling. |
| 6 | INB+ | Noninverting input for Channel B; identical DC and AC specs to INA+ for matched dual-channel performance. |
| 7 | GND | Analog/digital ground reference; must connect to low-impedance PCB ground plane for noise immunity. |
| 8 | OUTB | Comparator B output; independent of OUTA, enables parallel threshold evaluation without inter-channel delay penalty. |
Key Features
| Feature | Design Value |
|---|---|
| No minimum input slew-rate requirement | Enables reliable operation with DC to 200MHz signals, including slow-ramp triangle waves and low-overdrive sine inputs. |
| Stable linear-region response | Eliminates need for external hysteresis, preserving full resolution around zero-crossing points. |
| Input range extends 200mV below ground | Supports bipolar AC-coupled inputs without level-shifting circuitry or negative supply rails. |
| 5ns propagation delay with low skew | Delivers precise timing alignment between channels for window comparators and pulse-width discriminators. |
| TTL-compatible outputs | Direct interface to 74LS/74HC logic families and microcontroller GPIOs without level translation. |
Applications
| High-Speed Signal Squaring | Zero-Crossing Detectors |
|---|---|
Use Scenario: Converting low-amplitude, high-frequency sine or triangle waveforms into clean square waves for clock recovery or digital synchronization. IC Role / Device Role / Timing Role: Dual comparator acting as independent threshold detectors on rising and falling edges to generate symmetrical output clocks. Use Value: 5ns propagation delay and ≤500ps channel skew ensure minimal duty-cycle distortion and jitter accumulation in regenerated clocks. | Use Scenario: Detecting polarity reversals in AC line voltage, motor back-EMF, or audio signals for phase control or safety shutdown logic. IC Role / Device Role / Timing Role: Precision comparator monitoring differential input crossing 0V with guaranteed stability even during slow zero transitions. Use Value: Input range extending –0.2V below GND and no phase reversal enable robust detection without external clamping or bias networks. |
| High-Speed Line Receivers | Fast Pulse-Width Discriminators |
Use Scenario: Receiving degraded or attenuated high-speed data pulses over long PCB traces or cables in industrial communication interfaces. IC Role / Device Role / Timing Role: High-gain, low-noise comparator restoring logic levels from marginal analog waveforms with minimal added delay. Use Value: 6nV/√Hz input noise density and 3000V/V small-signal gain preserve signal integrity for pulses as narrow as 10ns. | Use Scenario: Measuring pulse duration in laser ranging, time-of-flight sensors, or digital encoders where nanosecond-level accuracy is required. IC Role / Device Role / Timing Role: Dual-channel comparator generating start/stop strobes from leading and trailing edges of incoming pulses. Use Value: Matched propagation delays and independent outputs allow direct measurement of pulse width without FPGA or timer overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Slower (1.3µs propagation delay), higher offset (±2mV typ but ±7mV max), no guaranteed –0.2V input range. | Lower-cost general-purpose use; unsuitable for sub-100ns timing or ground-referenced AC signals. | Select only for non-critical DC or low-frequency comparisons where speed and precision are secondary. |
| TLV3502IDR | Faster (4.5ns), rail-to-rail inputs, but CMOS output (not TTL) and higher supply current (5.5mA). | Requires level-shifting for legacy TTL loads; better for battery-powered high-speed apps with flexible I/O. | Choose when interfacing to modern MCUs with CMOS inputs and when ultra-low input offset (1.5mV max) is prioritized over TTL compatibility. |
Compared with LM393DR and TLV3502IDR, the MAX9012EUA-T uniquely combines TTL output drive, guaranteed sub-500ps channel matching, and –0.2V input capability - making it the only option among the three for industrial 5V systems demanding both speed and ground-referenced analog interface fidelity.
Availability
MAX9012EUA-T is available at Aetrix Electronics and suitable for high-speed signal conditioning, zero-crossing detection, and pulse-width measurement applications requiring stable component supply and long-term industrial lifecycle support.
Supply support for MAX9012EUA-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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX9010–MAX9013 family was designed specifically for precision, high-speed comparator applications in single-supply 5V systems - emphasizing low propagation delay, ground-referenced input operation, and TTL output compatibility without external components.
FAQ
What is the maximum input overdrive voltage supported by the MAX9012EUA-T without damage?
The MAX9012EUA-T supports analog input voltages from –0.3V to (VCC + 0.3V) without permanent damage. This means at VCC = 5.5V, inputs may safely reach –0.3V to +5.8V. However, correct logic decisions require at least one input within the specified common-mode range of –0.2V to (VCC – 1.9V). The MAX9012EUA-T remains functional and stable even when driven with overdriven inputs - no output phase reversal occurs.
Does the MAX9012EUA-T include a latch function like the MAX9011 or MAX9013?
No, the MAX9012EUA-T does not include a latch enable (LE) input. Unlike the MAX9011 and MAX9013, which feature TTL-compatible latch functionality, the MAX9012EUA-T provides two independent, transparent comparators with no latching capability. Its pinout omits the LE terminal, and its internal architecture is optimized for continuous, real-time comparison rather than sampled decision-holding.
Can the MAX9012EUA-T operate from a 3.3V supply?
No, the MAX9012EUA-T is specified only for 4.5V to 5.5V single-supply operation. Its internal bipolar process and TTL output stage require ≥4.5V to guarantee proper logic thresholds, propagation delay, and output drive strength. Attempting 3.3V operation results in undefined output states, increased propagation delay, and potential failure to meet datasheet specifications - use the MAX9060 or MAX9061 for true 3.3V-compatible high-speed comparators.
What is the thermal resistance (θJA) of the MAX9012EUA-T in its µMAX package?
The MAX9012EUA-T in the 8-pin µMAX package has a junction-to-ambient thermal resistance (θJA) of 222°C/W, calculated from its 362mW maximum power dissipation at +70°C ambient and 4.5mW/°C derating factor. This value assumes a standard 4-layer PCB with 1in² copper pour under the package. For high-power-density layouts, thermal vias beneath the exposed pad (if present) or additional copper area significantly reduce effective θJA.
Is the MAX9012EUA-T pin-compatible with the MAX9012ESA (SO-8 version)?
Yes, the MAX9012EUA-T (µMAX-8) and MAX9012ESA (SO-8) share identical pin numbering, pin functions, and electrical specifications. Both devices use the same 1–8 pinout: OUTA, INA−, INA+, INB−, VCC, INB+, GND, OUTB. This allows direct drop-in replacement in existing SO-8 footprints using adapter boards or re-layout - though µMAX's smaller size requires updated land patterns for optimal thermal and high-frequency performance.
MAX9012EUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- TTL
- Voltage - Supply, Single/Dual (±):
- 4.5V ~ 5.5V
- :
- 3mV @ 5.5V
- Voltage - Input Offset (Max):
- 0.5µA @ 5V
- Current - Input Bias (Max):
- 40mA
- Current - Output (Typ):
- 4.2mA
- Current - Quiescent (Max):
- 95dB CMRR, 82dB PSRR
- CMRR, PSRR (Typ):
- 9ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX9012EUA-T FAQ
1.How can I place an order for MAX9012EUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9012EUA-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 MAX9012EUA-T reliable?
The price and inventory of MAX9012EUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9012EUA-T is usually 5 days.
3.What payment methods are accepted for MAX9012EUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9012EUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9012EUA-T?
MAX9012EUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9012EUA-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 MAX9012EUA-T?
For technical support, including MAX9012EUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9012EUA-T requirements.
6.How does Aetrix verify that MAX9012EUA-T is sourced from the original manufacturer or authorized distributors?
All MAX9012EUA-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 MAX9012EUA-T meets industry standards.
7.What is the process for return or replacement of MAX9012EUA-T?
All MAX9012EUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9012EUA-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 MAX9012EUA-T part is unused and in its original packaging.
Return procedure for MAX9012EUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9012EUA-T Tags
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