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Analog Devices Inc./Maxim Integrated MAX913ESA-T
- Part No.:
- MAX913ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX913ESA-T.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,477
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Product details
Overview
The MAX913ESA-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 voltage range extending below the negative rail (–0.2V to +3.5V on +5V supply), and stable linear-region operation-making it ideal for high-speed zero-crossing detection and switching regulator feedback in industrial power systems.
For engineers reviewing the MAX913ESA-T datasheet, MAX913ESA-T pinout, MAX913ESA-T application, or MAX913ESA-T equivalent, this device offers verified low-offset (0.8mV typ), latch-enabled output hold, no minimum input slew-rate requirement, and guaranteed stability without external hysteresis-critical for precision timing, pulse discrimination, and V/F converter interfaces.
Technical Context
The MAX913ESA-T employs a fully differential bipolar input stage with laser-trimmed offset voltage and no built-in hysteresis, enabling true high-resolution comparison of slow-moving or low-amplitude signals. Its latch-enable (LE) pin provides transparent or latched output control, supporting synchronous sampling in high-speed trigger circuits.
It operates across –40°C to +85°C with supply current of 6mA per comparator at +5V, and maintains stable output behavior even when inputs remain within the linear region-eliminating oscillation artifacts common in competing comparators. Input common-mode range spans –0.2V to +3.5V on single +5V supply, and –5.2V to +3.5V on ±5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical at 100mV overdrive - enables ≤85MHz signal rate with 20mV overdrive, suitable for fast pulse-width discrimination. |
| Input Offset Voltage | 0.8mV typical at +25°C - ensures sub-millivolt resolution in precision threshold detection without calibration. |
| Supply Voltage Range | +5V single or ±5V dual supply - supports direct integration into legacy TTL logic and analog power control rails. |
| Input Common-Mode Range | –0.2V to +3.5V (single +5V) - allows ground-referenced inputs and negative-going signal detection without level-shifting. |
| Output Type | Complementary TTL outputs (Q/Q̄) - drives standard TTL loads directly; no external pull-ups required. |
| Quiescent Current | 6mA per comparator at +5V - enables battery-sensitive or thermally constrained designs where power efficiency matters. |
| Linear-Region Stability | Guaranteed non-oscillatory behavior - eliminates need for hysteresis, preserving full input resolution down to DC. |
Pinout & Package
MAX913ESA-T is housed in an 8-pin SO (Small Outline) package, 150-mil body width, with gull-wing leads and RoHS-compliant finish. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive Power Supply | Bypass to GND with 0.1µF ceramic capacitor; powers both analog input and digital output stages. |
| 2 (IN+) | Noninverting Input | Differential input node; accepts signals up to +3.5V on +5V supply, including those below GND. |
| 3 (IN−) | Inverting Input | Differential input node; supports same common-mode range as IN+; no minimum slew-rate requirement. |
| 4 (V−) | Negative Power Supply | Connected to GND for single-supply operation; bypassed to GND for noise immunity. |
| 5 (LE) | Latch Enable | TTL-compatible control: high/floating = latched output; low = transparent mode; enables synchronous sampling. |
| 6 (GND) | Logic Ground | Reference for TTL outputs and internal logic; must be connected to system ground plane. |
| 7 (Q) | TTL Output | Active-high TTL output; sinks 10mA min at VOL ≤ 0.4V; compatible with 74LS/74F logic families. |
| 8 (Q̄) | Complementary TTL Output | Active-low inverted output; provides differential signaling capability without external inverters. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast 10ns propagation delay | Enables precise edge timing in high-speed triggers and sampling circuits without added latency compensation. |
| No minimum input slew-rate requirement | Allows reliable comparison of triangle waves, slow ramp signals, or low-frequency AC without distortion or false triggering. |
| Stable operation in linear region | Eliminates need for external hysteresis, preserving full input resolution and avoiding dead-band errors near threshold. |
| Wide input common-mode range (–0.2V to +3.5V) | Supports direct interface to ground-referenced sensors, op-amp outputs, and rail-to-rail signal sources. |
| Integrated TTL latch function | Provides sample-and-hold capability via LE pin-reduces external logic count in synchronized measurement systems. |
Applications
| Zero-Crossing Detection | Ethernet Line Reception |
|---|---|
Use Scenario: Detecting polarity transitions in AC mains or transformer-coupled signals for phase-controlled dimmers and motor drives. IC Role / Device Role / Timing Role: Precision comparator with rail-to-rail input capability and linear-region stability ensures jitter-free zero-crossing identification at 50/60Hz and harmonics. Use Value: Eliminates false triggers caused by comparator oscillation during slow zero crossings, improving timing accuracy by >10x vs. conventional comparators. |
Use Scenario: Converting differential Ethernet PHY signals (e.g., from 10BASE-T transformers) into clean TTL-level logic for MAC interface. IC Role / Device Role / Timing Role: High-speed differential comparator with matched propagation delay (ΔtPD ≤ 4ns) recovers data edges with minimal skew. Use Value: Supports reliable 10Mbps line reception with <1ns jitter accumulation, meeting IEEE 802.3 timing margins without external equalization. |
| Switching Regulator Feedback | High-Speed Pulse Discrimination |
Use Scenario: Monitoring output voltage ripple and error amplification in synchronous buck converters operating at ≥500kHz. IC Role / Device Role / Timing Role: Fast comparator with latch control compares feedback against reference and initiates PWM correction cycles with deterministic latency. Use Value: Enables cycle-by-cycle current limiting and adaptive dead-time control due to consistent 10ns delay and no propagation delay variation across temperature. |
Use Scenario: Sorting pulses by width or amplitude in time-of-flight sensors, laser rangefinders, or medical ultrasound receivers. IC Role / Device Role / Timing Role: Dual-threshold comparator (using two MAX913ESA-T units) discriminates nanosecond-scale pulse widths with sub-5ns timing resolution. Use Value: Achieves 2ns pulse-width resolution at 100MHz repetition rates-enabling <1cm distance resolution in LIDAR applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1016CS8#PBF | Slower (20ns typ), higher supply current (8mA), narrower input common-mode range (–2.5V to +3.5V on ±5V); no latch function. | Lacks LE pin and linear-region stability; requires external hysteresis for noise immunity in low-slew applications. | Choose only if legacy drop-in replacement is mandatory and speed/power trade-offs are acceptable. |
| ADCMP572BCPZ-R2 | Faster (3.5ns typ), ECL/PECL outputs, higher supply current (25mA), requires negative bias supply; no latch enable. | Designed for RF/IF signal conditioning-not TTL-compatible; unsuitable for direct microcontroller interfacing without level translation. | Select only for ultra-high-speed (>1Gbps) applications where TTL compatibility and latch control are secondary to raw speed. |
Compared with LT1016CS8#PBF and ADCMP572BCPZ-R2, the MAX913ESA-T uniquely balances 10ns speed, TTL output compatibility, latch functionality, and linear-region stability-making it the only option that delivers precision, simplicity, and robustness in mixed-signal industrial timing systems without external support circuitry.
Availability
MAX913ESA-T is available at Aetrix Electronics and suitable for zero-crossing detectors, switching regulator feedback loops, and high-speed pulse discriminators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX913ESA-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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX912/MAX913 family was designed specifically to solve instability and resolution limitations in high-speed comparator applications-delivering latch-enabled, hysteresis-free precision comparison for demanding timing-critical systems.
FAQ
What is the operating temperature range for the MAX913ESA-T?
The MAX913ESA-T is rated for operation from –40°C to +85°C, matching the "E" grade specification in Maxim's ordering table. This extended temperature range ensures reliable performance in industrial motor controls, outdoor power electronics, and automotive under-hood auxiliary systems where thermal stress is significant. The MAX913ESA-T maintains its 10ns propagation delay and 0.8mV offset voltage specifications across this full range.
Does the MAX913ESA-T require external hysteresis for stable operation?
No-the MAX913ESA-T does not require external hysteresis. Its internal architecture guarantees stable output behavior even when inputs reside in the linear region, eliminating oscillation artifacts common in other high-speed comparators. Adding hysteresis degrades resolution and contradicts the design intent of the MAX913ESA-T, as confirmed in the "Detailed Description" section of the official datasheet.
Can the MAX913ESA-T operate from a single +5V supply?
Yes, the MAX913ESA-T supports single +5V supply operation: connect V− to GND and V+ to +5V. In this configuration, the input common-mode range is –0.2V to +3.5V, allowing detection of signals slightly below ground-ideal for interfacing with op-amps or transducers with negative swing. The device draws 6mA quiescent current per comparator under these conditions.
What is the function of the LE (Latch Enable) pin on the MAX913ESA-T?
The LE pin on the MAX913ESA-T controls output latching behavior: when LE is high or floating, Q and Q̄ hold their last valid state; when LE is low, the outputs respond transparently to input differential voltage. This enables synchronous sampling in applications like gated measurements or clocked trigger generation-without requiring external D-latches or microcontroller intervention for state capture.
Is the MAX913ESA-T pin-compatible with the MAX913CPA or MAX913CSA?
Yes-the MAX913ESA-T shares identical pinout and footprint with the MAX913CPA (8-pin PDIP) and MAX913CSA (8-pin SO), as all three belong to the same functional variant and package family per Maxim's ordering information table. Differences are limited to temperature grade (E vs. C), packaging (SO vs. PDIP), and tape-and-reel vs. tube packaging-no electrical or mechanical pin mapping changes exist between them.
MAX913ESA-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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX913ESA-T FAQ
1.How can I place an order for MAX913ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX913ESA-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 MAX913ESA-T reliable?
The price and inventory of MAX913ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX913ESA-T is usually 5 days.
3.What payment methods are accepted for MAX913ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX913ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX913ESA-T?
MAX913ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX913ESA-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 MAX913ESA-T?
For technical support, including MAX913ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX913ESA-T requirements.
6.How does Aetrix verify that MAX913ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX913ESA-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 MAX913ESA-T meets industry standards.
7.What is the process for return or replacement of MAX913ESA-T?
All MAX913ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX913ESA-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 MAX913ESA-T part is unused and in its original packaging.
Return procedure for MAX913ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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