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Analog Devices Inc./Maxim Integrated MAX913EPA
- Part No.:
- MAX913EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX913EPA.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,944
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Product details
Overview
The MAX913EPA from Maxim Integrated is a single, ultra-fast, low-power precision TTL comparator with differential inputs and complementary TTL outputs, 10ns typical propagation delay, ±5V or +5V single-supply operation, and stable linear-region behavior-ideal for high-speed zero-crossing detection and switching regulator feedback in industrial and embedded power systems.
For engineers reviewing the MAX913EPA datasheet, MAX913EPA pinout, MAX913EPA application, or MAX913EPA equivalent, this page delivers verified electrical parameters, package-specific terminal roles, real-world use cases in V/F conversion and Ethernet line reception, and two confirmed alternative comparators with documented functional trade-offs.
Technical Context
The MAX913EPA employs a fully differential bipolar input stage with trimmed offset voltage (0.8mV typ), enabling stable operation across its full common-mode range (–5.2V to +3.5V on ±5V supplies) without oscillation in the linear region-a key differentiator versus standard high-speed comparators.
It integrates a TTL-compatible latch enable (LE) function that freezes output state when LE is high or floating, and operates transparently when LE is low; propagation delay is guaranteed at 16ns max over –40°C to +85°C, with no minimum input slew-rate requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical (16ns max over –40°C to +85°C); enables reliable sampling at ≥70MHz signal rates. |
| Supply Voltage Range | +4.5V to +5.5V single supply or ±5V split supply; supports direct interface with legacy TTL logic and rail-to-rail input operation. |
| Input Offset Voltage | 0.8mV typical (3mV max over temperature); ensures high-resolution discrimination of small differential signals. |
| Supply Current | 6mA per comparator at +5V (10mA max over temp); enables low-power operation in battery-backed or thermally constrained designs. |
| Common-Mode Input Range | –5.2V to +3.5V on ±5V supplies; extends below negative rail, supporting ground-referenced or negative-input sensing. |
| Output Type | Complementary TTL outputs (Q and Q̅); drives standard TTL loads directly without level-shifting circuitry. |
| Linear-Region Stability | No oscillation in linear region; eliminates need for external hysteresis and preserves resolution for slow-moving or low-amplitude signals. |
Pinout & Package
MAX913EPA is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width, through-hole mounting, and industry-standard pin spacing (0.1 inch). Pin 1 is marked by a notch or dot; leads are tin-lead plated for compatibility with standard wave-solder processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input (+5V); powers analog input stage and digital output circuits; requires local 0.1µF ceramic bypass to GND. |
| 2 | IN+ | Noninverting input; accepts signals up to +3.5V above V–, including ground-referenced or negative-going inputs. |
| 3 | IN– | Inverting input; differential pair partner to IN+; matched input impedance supports balanced signal conditioning. |
| 4 | V– | Negative supply input (–5V or GND); powers only analog section; must be bypassed independently for noise immunity. |
| 5 | LE | Latch Enable; TTL-high or open = latched output; TTL-low = transparent mode; enables synchronous sampling control. |
| 6 | GND | Logic ground reference; connects internally to substrate; must tie to system ground plane with low-inductance path. |
| 7 | Q | TTL output (active-high); sinks 10mA or sources 4mA; compatible with 74LS/74F logic families without pull-up resistors. |
| 8 | Q̅ | Complementary TTL output (active-low); provides inverted logic state for differential signaling or latch-enable synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast propagation | 10ns typical delay enables accurate timing capture in pulse-width discriminators and high-speed triggers. |
| No linear-region oscillation | Eliminates need for external hysteresis, preserving full input resolution down to DC and sub-mV signal levels. |
| Wide common-mode range | Operates with inputs extending 200mV below V–, supporting direct connection to current-sense resistors or op-amp outputs. |
| Low supply current | 6mA per comparator at +5V allows integration into multi-channel monitoring systems without thermal penalty. |
| TTL-compatible latch | LE pin enables synchronous sampling of transient events-critical for glitch-free capture in switching regulator feedback loops. |
Applications
| Zero-Crossing Detection | Ethernet Line Reception |
|---|---|
|
Use Scenario: Detecting AC waveform polarity transitions in motor control or power metering systems. IC Role / Device Role / Timing Role: Precision comparator with rail-to-rail input and stable linear behavior captures exact zero-crossing point without false triggering. Use Value: Enables precise phase-angle control and harmonic distortion reduction in TRIAC-based dimmers and inverters. |
Use Scenario: Recovering differential data signals from twisted-pair Ethernet cables in legacy 10BASE-T receivers. IC Role / Device Role / Timing Role: High-speed differential comparator converts analog line-level signals to clean TTL logic for MAC-layer decoding. Use Value: 10ns propagation delay and low jitter preserve signal integrity at 10Mbps, meeting IEEE 802.3 timing budgets. |
| Switching Regulator Feedback | High-Speed Pulse Discrimination |
|
Use Scenario: Monitoring output voltage ripple and error amplification in DC-DC converters operating at ≥500kHz. IC Role / Device Role / Timing Role: Comparator compares feedback voltage against reference and drives PWM controller with minimal latency. Use Value: Stable linear-region operation prevents false switching during soft-start or load transients, improving regulation accuracy. |
Use Scenario: Identifying pulse width or amplitude thresholds in test equipment, laser drivers, or digital communications. IC Role / Device Role / Timing Role: Differential input rejects common-mode noise while complementary TTL outputs feed FPGA or microcontroller capture logic. Use Value: 16ns max delay variation over temperature ensures consistent timing margins in automated test systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1016CN8#PBF | Slower (25ns max), higher supply current (12mA), narrower input common-mode range (–3.5V to +3.5V). | Lacks linear-region stability; requires external hysteresis for reliable zero-crossing detection. | Use where cost sensitivity outweighs speed/power needs; not suitable for low-slew-rate or precision V/F converter applications. |
| LM311N | Slower (200ns typ), open-collector output, no latch function, higher offset (7mV), no guaranteed linear-region stability. | Requires external pull-up and hysteresis; unsuitable for TTL interfacing or synchronous sampling. | Select only for non-critical, low-frequency comparator tasks where budget constraints dominate performance requirements. |
Compared with LT1016CN8#PBF and LM311N, the MAX913EPA delivers 2.5× faster response, half the supply current, and unique linear-region stability-making it the only choice for precision high-speed applications requiring hysteresis-free operation and TTL compatibility.
Availability
MAX913EPA is available at Aetrix Electronics and suitable for industrial power supplies, embedded motor controllers, and Ethernet physical layer receivers requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for MAX913EPA 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 design house specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX912/MAX913 family was engineered to solve linear-region instability in high-speed comparators-targeting precision timing, V/F conversion, and switching regulator feedback where hysteresis degrades resolution.
FAQ
What is the maximum operating temperature range for the MAX913EPA?
The MAX913EPA is rated for operation from –40°C to +85°C, as indicated by the "E" suffix in its part number. This extended temperature grade makes it suitable for industrial environments, automotive under-hood applications, and outdoor power electronics where ambient temperatures exceed commercial-grade limits. All electrical specifications-including propagation delay, offset voltage, and supply current-are guaranteed across this full range.
Does the MAX913EPA require external hysteresis for stable operation?
No, the MAX913EPA does not require external hysteresis. Its internal architecture ensures stable output behavior even when input signals reside in the linear region-unlike conventional high-speed comparators that oscillate near zero differential voltage. Adding hysteresis would degrade resolution and is explicitly discouraged in the datasheet. The MAX913EPA maintains full 0.8mV offset accuracy without compromise.
Can the MAX913EPA operate from a single +5V supply?
Yes, the MAX913EPA supports single +5V supply operation: connect V– to GND, and bias inputs within the specified common-mode range (–0.2V to +3.5V). Output logic levels remain TTL-compatible, and propagation delay increases only marginally (≤12ns typ). This configuration simplifies power design in systems lacking negative rails, such as portable instrumentation or microcontroller-based regulators.
What is the function of the LE (Latch Enable) pin on the MAX913EPA?
The LE pin on the MAX913EPA controls output latching: when LE is high or left floating, Q and Q̅ hold their last valid state regardless of input changes; when LE is low, outputs respond immediately to differential input voltage. This enables synchronous sampling of transient events-e.g., capturing a specific edge in a switching regulator's feedback loop without metastability risk. Setup and hold times are specified at 2ns and 5ns respectively.
How does the MAX913EPA differ from the dual-channel MAX912EPE?
The MAX913EPA is a single-channel comparator with identical core specs (10ns delay, 0.8mV offset, ±5V/+5V operation) but lacks independent latch controls per channel. The MAX912EPE integrates two matched comparators in one package, each with dedicated LE pins (LEA/LEB), making it optimal for dual-threshold detection or differential pair processing. Both share the same linear-region stability and input range-but the MAX913EPA saves board space and cost in single-comparator applications.
MAX913EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
MAX913EPA FAQ
1.How can I place an order for MAX913EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913EPA 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 MAX913EPA reliable?
The price and inventory of MAX913EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913EPA is usually 5 days.
3.What payment methods are accepted for MAX913EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913EPA?
MAX913EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913EPA 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 MAX913EPA?
For technical support, including MAX913EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913EPA requirements.
6.How does Aetrix verify that MAX913EPA is sourced from the original manufacturer or authorized distributors?
All MAX913EPA 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 MAX913EPA meets industry standards.
7.What is the process for return or replacement of MAX913EPA?
All MAX913EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX913EPA, 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 MAX913EPA part is unused and in its original packaging.
Return procedure for MAX913EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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