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Analog Devices Inc./Maxim Integrated MAX913CSA-T
- Part No.:
- MAX913CSA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX913CSA-T.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
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Product details
Overview
The MAX913CSA-T 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, and stable linear-region behavior-enabling high-resolution zero-crossing detection in switching regulators and V/F converters.
For engineers reviewing the MAX913CSA-T datasheet, MAX913CSA-T pinout, MAX913CSA-T application, or MAX913CSA-T equivalent, this device is selected for high-speed analog threshold comparison where low supply current (6mA per comparator), latch-enabled output hold, and no minimum input slew-rate requirement are critical design constraints.
Technical Context
The MAX913CSA-T employs a fully differential bipolar input stage with trimmed offset voltage (0.8mV typ) and wide common-mode input range (–0.2V to +3.5V on +5V supply). Its latch-enable function allows synchronous sampling of comparator state without external logic.
Unlike conventional high-speed comparators, it remains stable through the linear region-eliminating oscillation and enabling accurate resolution of slow-moving or low-amplitude signals without added hysteresis. This behavior is intrinsic to its internal architecture and verified across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical at 100mV overdrive - enables ≥85MHz signal discrimination with 20mV overdrive. |
| Supply Voltage Range | +4.5V to +5.5V single supply or ±5V dual supply - supports industrial and telecom power rails. |
| Input Common-Mode Range | –0.2V to +3.5V (single +5V) - accepts inputs below ground, simplifying level-shifting in mixed-rail systems. |
| Supply Current | 6mA per comparator at +5V - reduces thermal load and extends battery life in portable instrumentation. |
| Input Offset Voltage | 0.8mV typical at +25°C - ensures sub-millivolt threshold accuracy without calibration. |
| Output Type | Complementary TTL - drives standard logic loads directly without pull-ups or level translators. |
| Latch Enable Function | TTL-compatible LE pin - holds Q/Q outputs transparently when low, latched when high or floating. |
Pinout & Package
MAX913CSA-T is housed in an 8-pin SO (Small Outline) package, 150-mil width, with gull-wing leads and JEDEC MS-012AC outline. Pin 1 is marked by bevelled corner or dot; pin count and orientation conform to industry-standard SOIC layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input (+5V); powers analog and digital sections; requires 0.1µF ceramic bypass to GND. |
| 2 | IN+ | Noninverting input; accepts signals up to +3.5V on +5V supply, including below-ground levels. |
| 3 | IN− | Inverting input; differential pair with IN+; supports full common-mode range without saturation. |
| 4 | V− | Negative supply (–5V or GND); powers only analog section; must be bypassed if used as split rail. |
| 5 | LE | Latch enable; TTL-high or open = latch mode; TTL-low = transparent mode; no external pull required. |
| 6 | GND | Logic ground reference; connects internally to substrate; must tie to system ground plane. |
| 7 | Q | TTL output (active-high); sinks 10mA / sources 4mA; compatible with 74LS/74F logic families. |
| 8 | Q̅ | Complementary TTL output (active-low); matches Q timing within 500ps skew; enables differential signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Stable linear-region operation | Eliminates need for external hysteresis, preserving full input resolution down to DC and low-frequency signals. |
| No minimum input slew-rate requirement | Valid output guaranteed even for triangle or sine-wave inputs with <1V/s slew rate, simplifying sensor interface design. |
| Wide input voltage range | Accepts inputs from –0.2V to +3.5V on +5V supply - supports direct connection to op-amp outputs or transducer bridges. |
| Low power consumption | 6mA supply current per comparator at +5V - enables multi-channel designs without thermal derating. |
| Complementary TTL outputs | Q and Q̅ provide matched rise/fall times and tight propagation delay matching (<500ps skew). |
Applications
| Zero-Crossing Detectors | Ethernet Line Receivers |
|---|---|
|
Use Scenario: Detecting polarity reversal of AC line voltage or transformer-coupled signals in power monitoring systems. IC Role / Device Role / Timing Role: Precision threshold comparator with sub-millivolt offset and rail-to-rail input capability. Use Value: Enables accurate phase-angle measurement and zero-voltage switching without hysteresis-induced dead zones. |
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 with 10ns propagation delay and TTL-compatible outputs. Use Value: Provides deterministic decision timing for Manchester-encoded signals with minimal jitter accumulation. |
| Switching Regulators | High-Speed Sampling Circuits |
|
Use Scenario: Monitoring feedback voltage against reference in synchronous buck/boost controllers. IC Role / Device Role / Timing Role: Fast comparator with latch function for synchronous PWM edge generation. Use Value: Reduces control-loop latency and improves transient response by eliminating comparator instability near crossover. |
Use Scenario: Triggering sample-and-hold or ADC conversion on fast analog pulses in test equipment. IC Role / Device Role / Timing Role: Edge-triggered comparator with precise 10ns delay and latch hold for timing alignment. Use Value: Ensures consistent sampling point across temperature and supply variation due to stable propagation characteristics. |
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 propagation (25ns typ), higher supply current (8mA), narrower input range (–2.5V to +3.5V on +5V) | Lacks latch function; requires external flip-flop for sampled output | Choose when cost sensitivity outweighs speed/power requirements and latch is not needed. |
| ADCMP572BCPZ-REEL7 | Faster (3.5ns typ), ECL/PECL outputs, higher supply current (25mA), no latch, wider supply range (±5V to ±12V) | Requires level translation for TTL logic; optimized for RF/IF sampling, not general-purpose analog thresholding | Choose for >100MHz timing-critical applications where TTL compatibility is secondary to raw speed. |
Compared with LT1016CN8#PBF and ADCMP572BCPZ-REEL7, the MAX913CSA-T uniquely balances 10ns speed, 6mA power, latch functionality, and TTL output compatibility-making it optimal for embedded control, power management, and instrumentation where integration and supply efficiency matter.
Availability
MAX913CSA-T is available at Aetrix Electronics and suitable for switching regulators, zero-crossing detectors, and high-speed sampling circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX913CSA-T 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 company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX913CSA-T belongs to Maxim's precision high-speed comparator product line, designed specifically for applications demanding low-latency, low-power, and latch-enabled threshold detection in single- or dual-supply environments.
FAQ
What is the maximum operating frequency for the MAX913CSA-T in latch mode?
The MAX913CSA-T supports a maximum latch-enable (LE) signal rate of 70MHz at +25°C with 5mV input overdrive, rising to 85MHz with 20mV overdrive. This is determined by its 10ns propagation delay and internal latch timing parameters (tSU = 2ns, tH = 5ns, tLPD = 7ns). The MAX913CSA-T maintains deterministic output behavior across this range due to its stable linear-region operation.
Does the MAX913CSA-T require external hysteresis for noise immunity?
No-the MAX913CSA-T does not require external hysteresis. Its internal architecture eliminates oscillation in the linear region, allowing clean transitions even with slow-moving or low-slew-rate inputs. Adding hysteresis degrades resolution and is explicitly discouraged in the MAX913CSA-T datasheet. The MAX913CSA-T achieves inherent noise immunity via low input offset (0.8mV typ) and high CMRR (80dB min).
Can the MAX913CSA-T operate from a single +3.3V supply?
No-the MAX913CSA-T is specified for +4.5V to +5.5V single-supply operation or ±5V dual supplies. Operation below +4.5V is not characterized or guaranteed; output drive strength, propagation delay, and input common-mode range degrade outside this range. For +3.3V systems, consider the MAX9021 or MAX9030 series instead of the MAX913CSA-T.
What is the purpose of the complementary Q and Q̅ outputs on the MAX913CSA-T?
The complementary Q and Q̅ outputs on the MAX913CSA-T provide matched, low-skew (≤500ps) TTL-level signals for differential signaling, bus driving, or direct interfacing with flip-flops and logic gates. This eliminates the need for external inverters and ensures timing-critical applications-such as synchronous sampling or PWM generation-maintain precise edge alignment. Both outputs are fully specified across temperature and supply for the MAX913CSA-T.
How does the MAX913CSA-T handle input voltages exceeding the supply rails?
The MAX913CSA-T allows input voltages up to –0.3V below V− and +14V above V− (i.e., up to +3.5V on +5V supply), per absolute maximum ratings. Its input stage is designed to tolerate overvoltage without damage or latch-up, provided current is limited externally (e.g., with series resistors). This rail-to-rail input tolerance enables direct connection to sensors or op-amps whose outputs swing beyond the MAX913CSA-T's supply rails.
MAX913CSA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- :
- 8-SOIC
MAX913CSA-T FAQ
1.How can I place an order for MAX913CSA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913CSA-T 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 MAX913CSA-T reliable?
The price and inventory of MAX913CSA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913CSA-T is usually 5 days.
3.What payment methods are accepted for MAX913CSA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913CSA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913CSA-T?
MAX913CSA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913CSA-T 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 MAX913CSA-T?
For technical support, including MAX913CSA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913CSA-T requirements.
6.How does Aetrix verify that MAX913CSA-T is sourced from the original manufacturer or authorized distributors?
All MAX913CSA-T 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 MAX913CSA-T meets industry standards.
7.What is the process for return or replacement of MAX913CSA-T?
All MAX913CSA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX913CSA-T, 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 MAX913CSA-T part is unused and in its original packaging.
Return procedure for MAX913CSA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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