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Analog Devices Inc./Maxim Integrated MAX9012EUA+
- Part No.:
- MAX9012EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9012EUA+.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,437
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Product details
Overview
MAX9012EUA+ from Maxim Integrated is a dual, high-speed, precision TTL comparator operating from a single 4.5V to 5.5V supply, featuring 5ns typical propagation delay, ±5.5mV input offset voltage over temperature, and stable operation with slow-moving or low-overdrive inputs - ideal for high-speed zero-crossing detection and pulse-width discrimination in space-constrained industrial timing circuits.
For engineers reviewing the MAX9012EUA+ datasheet, MAX9012EUA+ pinout, MAX9012EUA+ application, or MAX9012EUA+ equivalent, this page delivers verified package mapping (8-pin µMAX), confirmed dual-channel differential architecture, TTL-compatible outputs, latch-free design, and real-world performance data including channel-to-channel matching (500ps) and ground-swing input capability.
Technical Context
The MAX9012EUA+ implements a fully differential bipolar input stage 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 signals below ground while maintaining correct logic decisions as long as at least one input remains within that range.
It features two independent comparator channels sharing VCC and GND, each with IN+, IN–, and OUT pins. Unlike MAX9011/MAX9013, it lacks a latch enable (LE) input and complementary outputs - confirming its role as a pure dual high-speed comparator without latching or output inversion functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 5ns typical (CL = 5pF, VOD = 100mV); 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 Current | 2.4mA typical per device (both channels active); supports low-power 5V systems without thermal derating concerns. |
| Common-Mode Range | –0.2V to (VCC – 1.9V); allows direct interfacing with bipolar or ground-referenced analog signals. |
| Output Type | TTL-compatible single-ended outputs; interfaces directly with 74LS/74F logic without level-shifting. |
| Channel Matching | 500ps max channel-to-channel propagation delay skew; critical for synchronous dual-edge sampling applications. |
| Input Noise Density | 6nV/√Hz at 100kHz; preserves signal integrity in low-amplitude, high-bandwidth sensing paths. |
Pinout & Package
MAX9012EUA+ is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), thermally enhanced for high-density PCB layouts and compatible with standard SO-8 reflow profiles. The package includes exposed paddle for improved thermal dissipation and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A output - TTL-high when INA+ > INA–; drives 4mA sink/load directly. |
| 2 | INA– | Inverting input for Channel A - accepts voltages down to –0.2V without phase reversal. |
| 3 | INA+ | Noninverting input for Channel A - forms differential pair with INA–; matched to INB± for tracking. |
| 4 | INB– | Inverting input for Channel B - electrically identical to INA–; supports independent dual thresholds. |
| 5 | VCC | Positive supply pin - must be bypassed with 0.1µF ceramic capacitor placed ≤2mm from pin. |
| 6 | INB+ | Noninverting input for Channel B - fully isolated from Channel A except shared VCC/GND rails. |
| 7 | GND | Analog/digital ground reference - connects to solid ground plane; critical for noise immunity. |
| 8 | OUTB | Comparator B output - functionally identical to OUTA; no internal cross-coupling with OUTA. |
Key Features
| Feature | Design Value |
|---|---|
| No oscillation in linear region | Enables reliable DC-to-200MHz operation with slow-rising inputs or low overdrive (<5mV), eliminating need for external hysteresis. |
| Ground-swing input capability | Accepts inputs 200mV below GND without output phase reversal - simplifies interface with bipolar op-amp stages or AC-coupled sources. |
| Dual independent channels | Two matched comparators on one die with 500ps max propagation skew - supports time-aligned dual-threshold triggering. |
| Low-noise, high-gain input stage | 3000V/V small-signal gain and 6nV/√Hz input noise density preserve SNR in precision amplitude discrimination. |
| Single-supply optimization | Full functionality from 4.5V to 5.5V only - eliminates need for negative rail or charge pumps in portable or industrial 5V systems. |
Applications
| High-Speed Zero-Crossing Detection | Fast Pulse-Width Discrimination |
|---|---|
Use Scenario: Detecting polarity transitions of sine/triangle waveforms in motor control feedback loops or audio signal processing. IC Role / Device Role / Timing Role: Dual comparator simultaneously monitors rising and falling edges of same waveform to generate precise zero-crossing strobes. Use Value: 5ns propagation delay and 500ps channel matching ensure <1ns timing uncertainty between edge detections - critical for closed-loop phase alignment. |
Use Scenario: Measuring duty cycle of PWM signals in power converter monitoring or digital communication decoding. IC Role / Device Role / Timing Role: One channel triggers on leading edge, second on trailing edge; difference yields pulse width with minimal jitter. Use Value: Stable response to low-overdrive edges (≥5mV) and no minimum slew-rate requirement allow accurate measurement even with heavily filtered or attenuated PWM sources. |
| High-Speed Line Receiver | High-Speed Sampling Circuit |
Use Scenario: Converting degraded or noisy differential analog signals (e.g., LVDS stubs, long traces) into clean TTL logic for FPGA capture. IC Role / Device Role / Timing Role: Acts as threshold-based decision circuit with adjustable reference; dual channels support differential input reconstruction. Use Value: Input common-mode range extending below ground accommodates signal droop or DC offset, while 5ns delay preserves data rate up to 200Mbps. |
Use Scenario: Generating precise sample-enable pulses synchronized to analog signal peaks in data acquisition front-ends. IC Role / Device Role / Timing Role: Comparator compares analog input against programmable reference; output strobes ADC conversion start. Use Value: ±5.5mV offset voltage and 75–95dB CMRR ensure sub-1LSB timing error in 12-bit+ sampling systems operating across full industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MA/NOPB | 3.5ns propagation delay, 2.5mA supply current, rail-to-rail inputs, but requires ≥2.7V supply and has no guaranteed –0.2V input capability. | Optimized for wide-supply, high-speed ADC drivers; less suitable for legacy 5V-only industrial systems with sub-ground signals. | Select LMH7322MA/NOPB only if supply flexibility and faster speed outweigh ground-swing input necessity. |
| ADCMP602BRMZ-REEL7 | 1.5ns propagation delay, 4.5mA supply current, complementary TTL outputs, but no guaranteed operation below ground and higher quiescent power. | Better for ultra-fast trigger generation where dual independent outputs are needed; unsuitable for zero-crossing with bipolar inputs. | Choose ADCMP602BRMZ-REEL7 when sub-2ns timing is mandatory and input range can be constrained above GND. |
Compared with MAX9012EUA+, LMH7322MA/NOPB offers lower delay but sacrifices guaranteed sub-ground input operation, while ADCMP602BRMZ-REEL7 delivers superior speed at the cost of higher supply current and loss of ground-swing capability - making MAX9012EUA+ the optimal choice for robust, low-power, 5V dual-comparator applications requiring bipolar signal handling.
Availability
MAX9012EUA+ is available at Aetrix Electronics and suitable for high-speed zero-crossing detection, fast pulse-width discrimination, and high-speed line receiver applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9012EUA+ 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) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on performance, integration, and reliability.
The MAX9010–MAX9013 family was engineered specifically for single-supply, high-speed comparator applications demanding low propagation delay, ground-swing inputs, and stable linear-region operation - targeting instrumentation, motor control, and digital interface conditioning.
FAQ
What is the maximum input voltage range supported by the MAX9012EUA+?
The MAX9012EUA+ supports a common-mode input voltage range of –0.2V to (VCC – 1.9V) - meaning at VCC = 5V, inputs may swing from –0.2V to +3.1V. While either input can momentarily reach –0.3V to (VCC + 0.3V) without damage, correct logic decisions require at least one input within the specified common-mode window. This specification is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the MAX9012EUA+ datasheet.
Does the MAX9012EUA+ include a latch enable function?
No, the MAX9012EUA+ does not include a latch enable (LE) input. Latch functionality is exclusive to the MAX9011 and MAX9013 variants in the family. The MAX9012EUA+ provides two independent, transparent comparators with no latching, hold, or memory behavior - its outputs respond immediately to input differentials. This is explicitly stated in the Selector Guide and Pin Description sections of the MAX9012EUA+ datasheet.
What is the typical supply current consumption of the MAX9012EUA+ at +25°C?
The MAX9012EUA+ draws 2.4mA typical supply current at +25°C with both outputs active, as specified in the "ELECTRICAL CHARACTERISTICS (MAX9012/MAX9013)" table. This value increases slightly if both outputs are driven low (VOL), per Note 2 in the datasheet. The 2.4mA figure reflects worst-case quiescent current under normal operating conditions and is validated across the full 4.5V–5.5V supply range.
Can the MAX9012EUA+ operate with input signals slower than 100mV/ns?
Yes, the MAX9012EUA+ has no minimum input slew-rate requirement. Its unique architecture prevents oscillation in the linear region, allowing stable operation with arbitrarily slow-moving inputs - including DC and triangle waves - without external hysteresis. This behavior is confirmed in the Detailed Description section and Applications Information subsection titled "Input Slew Rate" in the MAX9012EUA+ datasheet.
What package type is used for the MAX9012EUA+?
The MAX9012EUA+ uses the 8-pin µMAX package (3mm × 3mm, 0.8mm height), as confirmed in the Ordering Information table and Package Information section of the datasheet. The "EUA" suffix explicitly denotes the µMAX variant, distinct from the "ESA" (SO-8) version. This thermally enhanced package supports high-density layout and is compatible with standard SO-8 footprint reflow processes.
MAX9012EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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+ FAQ
1.How can I place an order for MAX9012EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9012EUA+ 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+ reliable?
The price and inventory of MAX9012EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9012EUA+ is usually 5 days.
3.What payment methods are accepted for MAX9012EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9012EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9012EUA+?
MAX9012EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9012EUA+ 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+?
For technical support, including MAX9012EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9012EUA+ requirements.
6.How does Aetrix verify that MAX9012EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX9012EUA+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX9012EUA+?
All MAX9012EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9012EUA+, 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+ part is unused and in its original packaging.
Return procedure for MAX9012EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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