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Analog Devices Inc./Maxim Integrated MAX913CPA
- Part No.:
- MAX913CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX913CPA.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,436
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Product details
Overview
The MAX913CPA 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 power systems.
For engineers reviewing the MAX913CPA datasheet, MAX913CPA pinout, MAX913CPA application, or MAX913CPA equivalent, this page delivers verified electrical parameters, package-specific layout guidance, latch-enabled timing control, and validated alternatives for precision analog-comparator selection in noise-sensitive, low-power, high-speed signal conditioning circuits.
Technical Context
The MAX913CPA employs a fully differential bipolar input stage with trimmed offset voltage (0.8mV typ) and extends common-mode input range to −0.2V on single +5V supply or −5.2V on ±5V supply. Its latch-enable function allows synchronous sampling without external logic.
No minimum input slew rate is required, and output stability in the linear region eliminates need for external hysteresis-preserving resolution for slow-moving or low-amplitude signals such as V/F converter outputs or triangle-wave triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical at 100mV overdrive - enables >70MHz signal discrimination in pulse-width/height applications. |
| Supply Voltage Range | +4.5V to +5.5V (single) or ±5V (dual) - supports legacy TTL-compatible rail-to-rail input operation. |
| Input Offset Voltage | 0.8mV typical at +25°C - ensures sub-millivolt threshold accuracy in precision zero-crossing detectors. |
| Supply Current | 6mA per comparator at +5V - enables battery-powered or thermally constrained designs without performance trade-off. |
| Common-Mode Input Range | −0.2V to +3.5V (single +5V) - accepts inputs below ground, critical for AC-coupled sensor interfaces. |
| Output Type | Complementary TTL - drives standard logic loads directly without level-shifting or pull-up resistors. |
| Latch Enable Function | LE pin controls transparent/latched mode - synchronizes comparator decision with system clock, eliminating metastability in sampled systems. |
Pinout & Package
MAX913CPA uses an 8-pin plastic DIP (dual in-line package) with 0.300-inch body width and through-hole mounting. Pin 1 is V+, pin 6 is GND, and all pins are electrically defined per Maxim's official pin description.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input; bypass to GND with 0.1µF ceramic capacitor for stable TTL output switching. |
| 2 | IN+ | Noninverting input; accepts signals down to −0.2V on +5V supply-enables true rail-to-rail sensing. |
| 3 | IN− | Inverting input; matched to IN+ for <2mV offset and high CMRR (80–110dB) against supply noise. |
| 4 | V− | Negative supply or GND; defines lower common-mode limit and enables dual-supply operation. |
| 5 | LE | Latch enable; TTL-high or floating latches Q/Q outputs; TTL-low makes comparator transparent. |
| 6 | GND | Logic ground reference; must be connected to system ground plane to minimize noise coupling. |
| 7 | Q | TTL-compatible active-high output; sinks up to 10mA, sources 1mA-drives 74LS logic directly. |
| 8 | Q̅ | Complementary TTL output; provides inverted logic state for differential signaling or reset generation. |
Key Features
| Feature | Design Value |
|---|---|
| Stable linear-region operation | Eliminates oscillation during slow input transitions-no hysteresis required, preserving full resolution for low-frequency signals. |
| No minimum input slew-rate requirement | Valid output guaranteed regardless of input edge speed-simplifies interface with RC-filtered or low-bandwidth sensors. |
| Wide common-mode input range | Extends 200mV below negative rail-supports direct connection to AC-coupled transducers without biasing networks. |
| Low power consumption | 6mA supply current at +5V enables integration into portable or thermally isolated systems without derating. |
| Complementary TTL outputs | Provides both true and inverted logic states simultaneously-reduces external logic count in trigger and latch circuits. |
Applications
| Zero-Crossing Detection | Ethernet Line Reception |
|---|---|
Use Scenario: Detecting polarity reversal of AC mains or transformer-coupled audio signals in isolation-based power monitoring. IC Role / Device Role / Timing Role: Precision comparator with sub-millivolt offset and rail-to-rail input captures exact zero-crossing point without hysteresis-induced jitter. Use Value: Enables accurate phase-angle control in dimmers and inverters with <10ns timing uncertainty across temperature. |
Use Scenario: Recovering digital data from differential Ethernet PHY signals in legacy 10BASE-T receivers. IC Role / Device Role / Timing Role: High-speed comparator converts differential line voltage into clean TTL logic for MAC-layer sampling. Use Value: 10ns propagation delay and 500ps channel matching ensure reliable bit recovery at 10Mbps with minimal intersymbol interference. |
| Switching Regulator Feedback | High-Speed Pulse Discrimination |
Use Scenario: Monitoring output ripple and error amplification in DC-DC converters with fast transient response requirements. IC Role / Device Role / Timing Role: Comparator compares feedback voltage against reference and triggers PWM correction within nanosecond timing budget. Use Value: Stable linear-region behavior prevents false triggering during soft-start or load-step events-improves regulation accuracy by >15%. |
Use Scenario: Identifying valid pulses in radar echo processing or laser time-of-flight measurement where amplitude and width vary. IC Role / Device Role / Timing Role: Dual-threshold discriminator using latched outputs to capture pulse height and width simultaneously. Use Value: LE-controlled latching enables precise windowed sampling with <12ns timing resolution at 85MHz max signal rate. |
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 propagation), higher supply current (7.5mA), narrower input range (−2.5V to +3.5V on ±5V). | Less suitable for low-overdrive or wide common-mode applications like extended-range V/F converters. | Choose only if legacy LT1016 footprint compatibility is mandatory and speed/power trade-offs are acceptable. |
| LM360N | Higher offset (2mV), no latch function, 25ns delay, requires external hysteresis for stability in linear region. | Not viable for slow-moving inputs or synchronous sampling without added circuitry. | Select only for cost-sensitive, non-latched, moderate-speed applications where latch-free design simplifies BOM. |
Compared with LT1016CN8#PBF and LM360N, the MAX913CPA delivers 2.5× faster response, 20% lower power, wider input range, and integrated latch-making it the preferred choice for modern high-resolution, low-jitter timing and sensing systems requiring deterministic output behavior.
Availability
MAX913CPA is available at Aetrix Electronics and suitable for zero-crossing detection, switching regulator feedback, and high-speed pulse discrimination requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.
Supply support for MAX913CPA 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, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX912/MAX913 family was engineered specifically for high-speed, low-power comparator applications demanding stable linear-region operation, latch synchronization, and TTL-compatible outputs-targeting power conversion, test equipment, and real-time signal conditioning.
FAQ
What is the maximum operating frequency for the MAX913CPA when used as a zero-crossing detector?
The MAX913CPA supports input signal rates up to 70MHz at 5mV overdrive and 85MHz at 20mV overdrive. As a zero-crossing detector, its 10ns typical propagation delay and stable linear-region behavior allow accurate detection of sine waves up to 50MHz without oscillation or jitter-verified in Maxim's Typical Operating Characteristics (TOC09 and TOC10). The MAX913CPA maintains this performance across its 0°C to +70°C commercial temperature range.
Does the MAX913CPA require external hysteresis for stable operation?
No, the MAX913CPA does not require external hysteresis. Its unique internal architecture ensures stable output behavior even when inputs dwell in the linear region-eliminating oscillation common to other high-speed comparators. Adding hysteresis degrades resolution and is explicitly discouraged in Maxim's Applications Information section. The MAX913CPA achieves this via trimmed input offset and differential amplifier design, confirmed in the Detailed Description and Figure 2 of the datasheet.
What are the supply voltage requirements for single-supply operation of the MAX913CPA?
The MAX913CPA operates from a single +4.5V to +5.5V supply. For single-supply use, connect V− (pin 4) to GND and V+ (pin 1) to +5V. This configuration yields a common-mode input range of −0.2V to +3.5V-allowing inputs to go slightly below ground. Bypassing V+ and GND with a 0.1µF ceramic capacitor is mandatory for stable TTL output switching, as specified in the Power Supplies and Bypassing section.
How does the latch enable (LE) pin function in the MAX913CPA?
The LE pin (pin 5) controls output transparency: when LE is TTL-high or floating, Q and Q̅ hold their last valid state (latched mode); when LE is TTL-low, outputs respond immediately to input differential voltage (transparent mode). Setup time (tSU) is 2ns and hold time (tH) is 5ns-ensuring reliable synchronization with external clocks. This function is integral to the MAX913CPA's timing diagram and enables deterministic sampling in high-speed data acquisition systems.
What is the input offset voltage specification for the MAX913CPA over temperature?
The MAX913CPA has a guaranteed input offset voltage of ≤3mV over its full 0°C to +70°C operating range, with 0.8mV typical at +25°C. Offset drift is rated at 2µV/°C, meaning total drift across the temperature range contributes <140µV-well within the 3mV limit. This specification is confirmed in the Electrical Characteristics table (Note 2) and supported by the OFFSET VOLTAGE vs. TEMPERATURE plot (TOC07), making the MAX913CPA suitable for precision threshold detection in thermally varying environments.
MAX913CPA 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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
MAX913CPA FAQ
1.How can I place an order for MAX913CPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913CPA 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 MAX913CPA reliable?
The price and inventory of MAX913CPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913CPA is usually 5 days.
3.What payment methods are accepted for MAX913CPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913CPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913CPA?
MAX913CPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913CPA 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 MAX913CPA?
For technical support, including MAX913CPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913CPA requirements.
6.How does Aetrix verify that MAX913CPA is sourced from the original manufacturer or authorized distributors?
All MAX913CPA 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 MAX913CPA meets industry standards.
7.What is the process for return or replacement of MAX913CPA?
All MAX913CPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX913CPA, 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 MAX913CPA part is unused and in its original packaging.
Return procedure for MAX913CPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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