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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:1,061
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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. It delivers 10ns typical propagation delay, ±5V or +5V single-supply operation, input range extending below the negative rail (–0.2V to +3.5V on +5V supply), 0.8mV offset voltage, and stable linear-region operation-ideal for high-speed zero-crossing detection and switching regulator feedback loops.
For engineers reviewing the MAX913CPA+ datasheet, MAX913CPA+ pinout, MAX913CPA+ application, or MAX913CPA+ equivalent, key selection criteria include latch-enable functionality, TTL-compatible output drive, absence of minimum input slew-rate requirement, and guaranteed stability without external hysteresis in slow-moving signal applications.
Technical Context
The MAX913CPA+ employs a fully differential bipolar input stage with laser-trimmed offset and no built-in hysteresis, enabling high-resolution comparison of low-slew-rate signals. Its latch-enable (LE) pin provides transparent or latched output control, with setup time ≤2ns and hold time ≥5ns at +25°C.
It operates from +5V single supply (V− = GND) or ±5V split supplies (V− = –5V), supporting common-mode input voltages from –0.2V to +3.5V (single) or –5.2V to +3.5V (dual), and delivers TTL-level outputs (VOH ≥ 2.4V @ 10mA, VOL ≤ 0.4V @ 10mA) with 6mA per comparator supply current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typ (ΔVIN = 100mV, VOD = 20mV); enables >85MHz signal discrimination in timing-critical sampling circuits. |
| Input Offset Voltage | 0.8mV max at +25°C; ensures sub-millivolt resolution without hysteresis-induced deadband. |
| Supply Current | 6mA per comparator at +5V; supports battery-powered or thermally constrained systems. |
| Input Common-Mode Range | –0.2V to +3.5V on +5V supply; allows direct interface with ground-referenced sensors or DACs. |
| Output Logic Type | Complementary TTL (Q/Q̄); drives standard logic loads without level-shifting or pull-ups. |
| Latch Enable Function | LE high/floating → latched; LE low → transparent; eliminates need for external D-latch in sampled-data systems. |
| Stability in Linear Region | No oscillation during slow input transitions; enables accurate zero-crossing detection without added hysteresis. |
Pinout & Package
MAX913CPA+ uses an 8-pin plastic DIP (dual in-line package) with 0.300" 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 power supply (+5V or +4.5V to +5.5V); powers analog input stage and TTL output drivers. |
| 2 | IN+ | Noninverting input; accepts signals up to +3.5V on +5V supply, including those below GND. |
| 3 | IN− | Inverting input; matched to IN+ for precise differential comparison with <2mV offset. |
| 4 | V− | Negative supply (GND for single supply, –5V for dual); bypass to GND with 0.1µF ceramic capacitor. |
| 5 | LE | Latch enable: high/floating → holds Q/Q̄ state; low → output follows input differential voltage. |
| 6 | GND | Logic ground reference; must be connected to system ground plane for noise immunity. |
| 7 | Q | TTL output (active-high); sinks 10mA or sources 4mA while maintaining VOH ≥ 2.4V / VOL ≤ 0.4V. |
| 8 | Q̄ | Complementary TTL output (active-low); provides inverted logic for differential signaling or reset logic. |
Key Features
| Feature | Design Value |
|---|---|
| No minimum input slew-rate requirement | Enables reliable zero-crossing detection on triangle or sine waves with <10mV/µs slew rates. |
| Stable operation in linear region | Eliminates need for external hysteresis, preserving full input resolution across 0V crossing. |
| Wide input common-mode range | Supports inputs down to –0.2V on +5V supply, allowing direct connection to op-amp outputs or transducer bridges. |
| Low power consumption | 6mA per comparator at +5V enables integration into multi-channel, low-quiescent systems. |
| TTL-compatible latch function | Reduces BOM count by replacing external D-flip-flop in sampled comparator architectures. |
Applications
| Zero-Crossing Detectors | Ethernet Line Receivers |
|---|---|
|
Use Scenario: Detecting polarity reversal of AC line voltage or audio signals in isolation-coupled power monitoring. IC Role / Device Role / Timing Role: Precision comparator with latch control captures exact zero-crossing point without oscillation or hysteresis-induced jitter. Use Value: Achieves <10ns timing uncertainty on 50/60Hz waveforms due to stable linear-region behavior and 10ns propagation delay. |
Use Scenario: Recovering digital data from differential Ethernet PHY signals in legacy 10BASE-T receivers. IC Role / Device Role / Timing Role: High-speed differential comparator converts twisted-pair voltage differences into clean TTL logic levels. Use Value: 10ns delay and 8.7V common-mode range (±5V supply) tolerate cable-induced offsets and noise. |
| Switching Regulators | High-Speed Sampling Circuits |
|
Use Scenario: Monitoring feedback voltage against reference in synchronous buck converters operating at >500kHz. IC Role / Device Role / Timing Role: Comparator in error amplifier loop detects threshold crossings to trigger PWM edge modulation. Use Value: Input range extending below GND accommodates current-sense amplifier outputs referenced to switch node. |
Use Scenario: Triggering ADC sampling clocks based on analog event thresholds in test equipment or oscilloscopes. IC Role / Device Role / Timing Role: Latched comparator generates precise, jitter-free strobe pulses synchronized to input signal edges. Use Value: LE-controlled latching ensures deterministic sampling window alignment independent of input slew rate. |
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 (10mA), narrower input range (–2.5V to +3.5V on +5V), no latch function. | Lacks LE pin and linear-region stability; requires external hysteresis for reliable zero-crossing. | Choose only if latch function is unnecessary and 15ns extra delay is acceptable. |
| LM311N | Slower (200ns typ), open-collector output (requires pull-up), no latch, higher offset (7mV), no linear-region stability guarantee. | Suitable only for non-critical DC threshold detection; unsuitable for high-frequency or low-slew-rate AC signals. | Select only for cost-sensitive, low-speed applications where TTL output and latch are not required. |
Compared with LT1016CN8#PBF and LM311N, the MAX913CPA+ offers superior speed, lower power, guaranteed linear-region stability, and integrated latch functionality-making it the preferred choice for precision timing, sampling, and feedback control where jitter, resolution, and integration matter.
Availability
MAX913CPA+ is available at Aetrix Electronics and suitable for zero-crossing detectors, switching regulator feedback loops, and high-speed sampling circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.
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 and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on performance, integration, and reliability.
The MAX912/MAX913 family was engineered specifically for high-speed, low-power comparator applications demanding stable linear-region operation, TTL compatibility, and latch-enable functionality-targeting power conversion, data acquisition, and signal conditioning systems.
FAQ
What is the maximum operating supply voltage for MAX913CPA+?
The MAX913CPA+ supports a positive supply voltage (V+) up to +7V and a negative supply voltage (V−) down to –7V, with absolute maximum V+ to V− differential of +13V. For reliable operation, use +4.5V to +5.5V on V+ and GND or –5V on V−, as specified in the electrical characteristics table. Exceeding these limits risks permanent damage.
Does MAX913CPA+ require external hysteresis for stable operation?
No, the MAX913CPA+ does not require external hysteresis. Its internal design ensures stable output behavior even when the input resides in the linear region-unlike many high-speed comparators that oscillate near zero differential voltage. Adding hysteresis degrades resolution and is explicitly discouraged in the datasheet.
Can MAX913CPA+ operate from a single +5V supply?
Yes, the MAX913CPA+ operates from a single +5V supply with V− connected to GND. In this configuration, its input common-mode range is –0.2V to +3.5V, enabling interface with ground-referenced sources. Output remains fully TTL-compatible, and supply current stays at 6mA per comparator.
What is the function of the LE pin on MAX913CPA+?
The LE (Latch Enable) pin on MAX913CPA+ controls output transparency: when LE is high or floating, Q and Q̄ retain their last valid state (latched mode); when LE is low, outputs respond immediately to input differential voltage (transparent mode). This eliminates need for external flip-flops in sampled-data systems.
Is MAX913CPA+ pin-compatible with other comparators like LM311 or LT1016?
No, MAX913CPA+ is not pin-compatible with LM311 or LT1016. It uses an 8-pin DIP layout with V+ on pin 1 and GND on pin 6, whereas LM311N places V+ on pin 8 and GND on pin 1, and LT1016CN8 places V+ on pin 8 and GND on pin 4. PCB redesign is required for substitution.
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:
- Active
- 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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