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Analog Devices Inc./Maxim Integrated MAX913MJA
- Part No.:
- MAX913MJA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
MAX913MJA.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,699
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Product details
Overview
The MAX913MJA from Maxim Integrated is a single, ultra-fast, low-power precision TTL comparator with differential inputs and complementary TTL outputs. It delivers 10ns typical propagation delay, ±5V or +5V single-supply operation, and stable linear-region behavior-enabling high-resolution zero-crossing detection in switching regulators and V/F converters.
For engineers reviewing the MAX913MJA datasheet, MAX913MJA pinout, MAX913MJA application, or MAX913MJA equivalent, key selection considerations include its rail-to-rail input common-mode range (–5.2V to +3.5V), latch-enable functionality, 0.8mV offset voltage, and compatibility with legacy LT1016-based designs requiring improved power efficiency and extended input range.
Technical Context
The MAX913MJA employs a fully differential bipolar input amplifier with laser-trimmed offset and no built-in hysteresis, enabling stable operation across its entire linear region without oscillation-even with slow-moving or low-slew-rate input signals. Its TTL-compatible latch (LE pin) provides transparent or latched output control depending on logic level.
It operates from ±5V or +5V supplies, with V+ powering both analog and digital sections and V– powering only the analog stage. Input common-mode range extends 200mV below V– and 1.5V below V+, yielding an 8.7V total range under ±5V bias-critical for wide-dynamic-range signal conditioning in industrial timing and power control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical at 100mV overdrive - enables >85MHz clocked operation in fast pulse discriminators and sampling circuits. |
| Input Offset Voltage | 0.8mV max at +25°C - ensures sub-millivolt resolution in precision zero-crossing and threshold-detection applications. |
| Supply Current per Comparator | 6mA at +5V - reduces thermal load and simplifies power budgeting in battery- or energy-constrained systems. |
| Input Common-Mode Range | –5.2V to +3.5V (±5V supply) - supports direct interfacing with op-amp stages, sensor outputs, and negative-rail referenced signals. |
| Output Type | Complementary TTL - drives standard logic loads directly without level-shifting, reducing BOM count in digital interface designs. |
| Latch Enable Function | LE high/floating = latched; LE low = transparent - provides synchronous sampling control for time-critical trigger and capture functions. |
| Stability in Linear Region | No oscillation at zero differential input - eliminates need for external hysteresis, preserving full input resolution down to DC. |
Pinout & Package
MAX913MJA is supplied in an 8-pin military-grade ceramic DIP (MJA) package, rated for –55°C to +125°C operation and hermetically sealed for high-reliability aerospace and defense applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive Power Supply | Bypasses to GND with 0.1µF ceramic capacitor; powers analog input stage and TTL output drivers. |
| 2 - IN+ | Noninverting Input | Differential input node; accepts signals up to 3.5V above V– or 200mV below V– without clipping. |
| 3 - IN– | Inverting Input | Differential input node; matched to IN+ for precise threshold comparison and common-mode rejection. |
| 4 - V– | Negative Power Supply | –5V for dual supply or GND for single +5V operation; powers only analog section, decoupled separately. |
| 5 - LE | Latch Enable | TTL-compatible control: high/floating holds Q/Q state; low enables real-time tracking of input differential voltage. |
| 6 - GND | Logic Ground | Reference for TTL output levels and internal logic; must be connected to system ground plane with low-inductance path. |
| 7 - Q | TTL Output | Active-high TTL output (VOH ≥ 2.4V @ 10mA sink); compatible with 74LS/74F logic families. |
| 8 - Q̅ | Complementary TTL Output | Active-low inverted output (VOL ≤ 0.4V @ 10mA sink); enables differential signaling or OR/NOR logic implementation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast 10ns propagation delay | Enables accurate timing capture in high-frequency pulse-width discriminators and Ethernet line receivers operating up to 85MHz. |
| No minimum input slew-rate requirement | Supports reliable comparison of slow-moving triangle waves, thermocouple outputs, or filtered sensor signals without added hysteresis. |
| Stable operation in linear region | Eliminates output chatter near zero-crossing points-critical for precision V/F conversion and analog-to-digital front-end conditioning. |
| Rail-to-rail input common-mode range | Accepts inputs extending 200mV below V–, allowing direct connection to op-amps, DACs, or transducer amplifiers referenced to negative rails. |
| Low 6mA supply current at +5V | Reduces heat generation and power supply ripple in multi-comparator systems, easing thermal design in dense PCB layouts. |
Applications
| Zero-Crossing Detectors | Ethernet Line Receivers |
|---|---|
Use Scenario: Detecting AC waveform polarity transitions in motor control feedback loops and isolated power supply monitoring. IC Role / Device Role / Timing Role: Precision comparator with latch function captures exact zero-crossing point without hysteresis-induced timing jitter. Use Value: Sub-10ns timing accuracy and linear-region stability enable <1° phase error in closed-loop servo systems operating at 50/60Hz. |
Use Scenario: Recovering differential data signals from twisted-pair Ethernet PHY outputs in legacy 10BASE-T or industrial fieldbus receivers. IC Role / Device Role / Timing Role: High-speed comparator converts small-swing differential signals into clean TTL-level logic for MAC-layer synchronization. Use Value: 10ns propagation delay and 8.7V input range support robust signal recovery even with cable-induced skew and common-mode noise up to ±3V. |
| Switching Regulators | High-Speed Sampling Circuits |
Use Scenario: Generating PWM gate drive signals in synchronous buck/boost controllers using current-sense or voltage-feedback loops. IC Role / Device Role / Timing Role: Fast comparator compares ramp or error signal against reference to set duty cycle with minimal propagation delay uncertainty. Use Value: 0.8mV offset and stable linear behavior ensure <0.1% duty-cycle error across temperature, improving regulation accuracy in 500kHz+ switchers. |
Use Scenario: Triggering sample-and-hold or ADC acquisition windows in test equipment, radar IF processing, or digital oscilloscope front-ends. IC Role / Device Role / Timing Role: Latch-enabled comparator generates precise strobe pulses synchronized to analog event thresholds. Use Value: LE-controlled latching eliminates metastability risk during high-speed sampling, supporting >100MS/s effective capture rates with deterministic timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1016CN8#PBF | Slower (25ns typ), higher supply current (8mA), narrower input range (–4.5V to +3.0V) | Legacy drop-in replacement but lacks linear-region stability and latch function | Select only when footprint compatibility with older designs is mandatory and speed/power trade-offs are acceptable. |
| LM360N | Higher offset (2mV), no latch, 25ns delay, requires dual ±15V supplies | Designed for general-purpose high-speed comparison without precision or latch features | Use where cost is primary constraint and linear-region oscillation can be mitigated externally via hysteresis. |
Compared with LT1016CN8#PBF and LM360N, the MAX913MJA offers superior timing fidelity, lower power, wider input range, and integrated latching-making it the preferred choice for new designs demanding resolution, stability, and synchronization in mission-critical analog-digital interfaces.
Availability
MAX913MJA is available at Aetrix Electronics and suitable for aerospace avionics, defense radar subsystems, and high-reliability industrial power controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX913MJA 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX913MJA belongs to Maxim's precision high-speed comparator product line, engineered specifically for applications requiring nanosecond timing accuracy, rail-to-rail input capability, and deterministic latch-controlled sampling in harsh environments.
FAQ
What is the operating temperature range of the MAX913MJA?
The MAX913MJA is specified for operation from –55°C to +125°C. This military-grade temperature range is enabled by its hermetically sealed ceramic DIP (MJA) package and internal circuit design optimized for thermal stability-making it suitable for engine control units, satellite payloads, and downhole drilling electronics where ambient extremes are routine. The MAX913MJA maintains its 10ns propagation delay and 0.8mV offset performance across this full range.
Does the MAX913MJA require external hysteresis for stable operation?
No, the MAX913MJA does not require external hysteresis. Its unique internal architecture ensures stable, oscillation-free behavior even when the differential input voltage is near zero-unlike many high-speed comparators that become unstable in the linear region. Adding hysteresis would degrade resolution without benefit. The MAX913MJA's documented linear-region stability is verified across all temperature and supply conditions in the official datasheet.
Can the MAX913MJA operate from a single +5V supply?
Yes, the MAX913MJA supports single +5V supply operation: connect V– to GND and V+ to +5V. In this configuration, its input common-mode range is –0.2V to +3.5V-allowing direct interfacing with sensors, DACs, and op-amps referenced to ground. The MAX913MJA draws only 6mA per comparator under these conditions, maintaining TTL-compatible output swing and latch functionality without modification.
What is the purpose of the LE (Latch Enable) pin on the MAX913MJA?
The LE pin on the MAX913MJA controls output latching behavior: when LE is high or floating, the Q and Q̅ outputs hold their last valid state regardless of input changes; when LE is low, the outputs respond immediately to the differential input voltage. This enables synchronous sampling, noise-immune edge capture, and glitch-free triggering in applications like digital oscilloscopes and pulse-height analyzers. The MAX913MJA's LE timing parameters (tSU = 2ns, tH = 5ns) are fully characterized for reliable system integration.
How does the MAX913MJA compare to the LT1016 in terms of power consumption and input range?
The MAX913MJA consumes significantly less power than the LT1016-6mA versus 8mA at +5V-and provides a wider input common-mode range: –5.2V to +3.5V (±5V supply) versus –4.5V to +3.0V for the LT1016. These improvements stem from Maxim's optimized bipolar process and input stage design. As a result, the MAX913MJA delivers equivalent 10ns speed while enabling more flexible signal interfacing and lower thermal dissipation-making it a true functional upgrade, not just a pin-compatible replacement.
MAX913MJA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- with Latch
- Number of Elements:
- 1
- Output Type:
- Complementary, TTL
- Voltage - Supply, Single/Dual (±):
- 5V ~ 10V
- :
- 2mV @ ±5V
- Voltage - Input Offset (Max):
- 5µA @ ±5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 10mA
- Current - Quiescent (Max):
- 110dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- 14ns
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-CERDIP
MAX913MJA FAQ
1.How can I place an order for MAX913MJA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913MJA 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 MAX913MJA reliable?
The price and inventory of MAX913MJA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913MJA is usually 5 days.
3.What payment methods are accepted for MAX913MJA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913MJA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913MJA?
MAX913MJA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913MJA 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 MAX913MJA?
For technical support, including MAX913MJA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913MJA requirements.
6.How does Aetrix verify that MAX913MJA is sourced from the original manufacturer or authorized distributors?
All MAX913MJA 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 MAX913MJA meets industry standards.
7.What is the process for return or replacement of MAX913MJA?
All MAX913MJA units undergo pre-shipment inspection (PSI). If there is an issue with MAX913MJA, 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 MAX913MJA part is unused and in its original packaging.
Return procedure for MAX913MJA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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