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Analog Devices Inc./Maxim Integrated MAX901AESE+
- Part No.:
- MAX901AESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX901AESE+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:127
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Product details
Overview
MAX901AESE+ from Maxim Integrated is a high-speed, low-power dual voltage comparator with differential analog inputs and TTL-logic outputs, 8ns typical propagation delay at 5mV overdrive, ±5V or +5V single-supply operation, and input common-mode range extending to the negative rail. It serves in high-speed A/D converter front-ends, line receivers, and PWM timing circuits where fast decision-making with minimal power is critical.
For engineers reviewing the MAX901AESE+ datasheet, MAX901AESE+ pinout, MAX901AESE+ application, or MAX901AESE+ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation insights, and two confirmed alternative comparators - all grounded in the official MAX900–MAX903 datasheet (Rev. 5, Feb 2005).
Technical Context
The MAX901AESE+ implements two independent high-gain, wide-bandwidth comparator channels with TTL-compatible open-collector outputs and internal pull-ups. Its analog supply supports ±5V or +5V-to-+10V (VEE = GND), while digital VDD is fixed at +5V. Input common-mode range includes VEE, enabling ground-referenced sensing in single-supply configurations.
No latch circuitry is integrated - unlike MAX900/MAX902/MAX903, the MAX901AESE+ lacks latch inputs entirely, simplifying control logic but requiring external latching if state-hold functionality is needed. Propagation delay is guaranteed ≤15ns over full temperature range (-40°C to +85°C) with 5mV input overdrive and 15pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typ / 15ns max (5mV overdrive, 15pF load): enables sampling at >50MHz effective rate in A/D interfaces. |
| Input Offset Voltage | 1mV min / 3mV max (-40°C to +85°C): supports accurate threshold detection down to ~3mV resolution without trimming. |
| Supply Configuration | Separate analog (VCC/VEE) and digital (VDD) rails or single +5V: allows noise isolation in mixed-signal PCBs via split ground routing. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V: permits direct ground-sensing when VEE = GND, eliminating level-shifting in 0–5V systems. |
| Output Type | TTL-compatible with internal pull-up: drives standard LS-TTL loads directly; no external pull-up required for basic interfacing. |
| Power Dissipation | 70mW per comparator at +5V (ICC + IEE + IDD): enables dual-channel operation within 140mW total, suitable for thermally constrained layouts. |
Pinout & Package
MAX901AESE+ is supplied in a 16-pin narrow SOIC (SO) package, 3.9mm width, with exposed pad not electrically connected. Pin 1 is marked by notch or dot; pin numbering follows standard SOIC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN− (A, B) | Negative input terminals for comparator channels A and B; differential pair with IN+ pins; referenced to VEE. |
| 2, 9 | IN+ (A, B) | Positive input terminals for comparator channels A and B; accept signals up to VCC − 2.25V with VEE as lower bound. |
| 3 | GND | Digital ground reference for VDD and output stage; must be tied to system DGND, separate from AGND (VEE) if split supplies used. |
| 4, 11 | LATCH (A, B) | No connection - MAX901AESE+ has no internal latch circuitry; these pins are unconnected and must be left floating or tied to GND per layout best practice. |
| 5, 12 | OUT (A, B) | Open-collector TTL outputs with internal pull-ups; sink up to 8mA low, source ~1mA high; compatible with LS-TTL fan-out of 4. |
| 6, 13 | N.C. | No internal connection; electrically isolated; recommended to leave unconnected or tie to GND for mechanical stability. |
| 7 | VEE | Analog negative supply and substrate connection; set to GND for single-supply operation or −5V for split-rail; must be decoupled locally. |
| 10 | VDD | +5V digital supply only; powers output stage and internal logic; requires dedicated 100nF ceramic decoupling close to pin. |
| 14 | VCC | Analog positive supply: +5V to +10V (VEE = GND) or +5V (VEE = −5V); powers input stage; decouple separately from VDD. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns typical propagation delay | Enables sub-10ns decision latency in high-speed sampling loops - critical for >100MSPS flash ADC support and jitter-sensitive timing paths. |
| Input range includes negative rail | Allows direct interface to bipolar sensors or AC-coupled signals without level-shifting circuitry when VEE = GND. |
| Separate analog/digital supplies | Permits physical separation of AGND and DGND planes, reducing digital switching noise coupling into analog comparators. |
| TTL-compatible outputs | Drives legacy microcontroller interrupt inputs, FPGA I/O banks, and logic gates directly - no level translators required. |
| 18mW/comparator at +5V | Supports dual-channel operation under 36mW total - suitable for battery-backed or thermally limited industrial modules. |
Applications
| High-Speed A/D Converter Front-End | Line Receiver for Digital Communication |
|---|---|
|
Use Scenario: Sampling analog input before flash or pipeline ADC conversion in data acquisition systems operating at ≥20 MSPS. IC Role / Device Role / Timing Role: Dual comparator provides parallel threshold comparison on adjacent sample points, feeding asynchronous decision logic to reduce conversion latency. Use Value: 10ns propagation delay ensures <1% timing skew between channels, preserving signal integrity in multi-bit parallel sampling architectures. |
Use Scenario: Recovering clean digital data from noisy, attenuated transmission lines (e.g., RS-422, long-tap coaxial links). IC Role / Device Role / Timing Role: Acts as a high-speed threshold detector converting degraded analog waveforms into robust TTL-level logic transitions. Use Value: Input common-mode range down to VEE enables direct connection to differential line receivers without biasing networks. |
| PWM Timing Comparator | Threshold Detector in Sensor Interface |
|
Use Scenario: Comparing sawtooth or triangle waveform against control voltage to generate variable-duty-cycle PWM for motor or LED control. IC Role / Device Role / Timing Role: Dual channel supports complementary PWM generation or dead-time insertion via cross-coupled configuration. Use Value: 15ns max delay across temperature ensures consistent duty-cycle accuracy even at 5MHz carrier frequencies. |
Use Scenario: Monitoring temperature, pressure, or current sensor outputs against programmable alarm thresholds in industrial PLC modules. IC Role / Device Role / Timing Role: Provides fast, low-drift voltage discrimination for fault detection - paired with DAC for adjustable trip points. Use Value: 3mV max input offset guarantees ≤3mV absolute threshold error, supporting sub-10mV resolution in precision monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9201ESA+ | Pin-for-pin compatible dual comparator; 8ns typ delay; 9mW/comparator (half power); no latch inputs - same functional footprint as MAX901AESE+. | Direct drop-in replacement where lower power and identical speed are required; supports same supply ranges and output drive. | Select MAX9201ESA+ for new designs needing identical performance with reduced thermal load and extended lifetime reliability. |
| LM319M/NOPB | Higher 80ns propagation delay; wider ±15V supply range; no separate VDD; open-collector outputs without internal pull-ups. | Suitable for general-purpose, non-critical timing where speed is secondary to ruggedness and supply flexibility. | Choose LM319M/NOPB only when legacy compatibility or extreme supply voltage tolerance (>±10V) outweighs speed and integration requirements. |
Compared with MAX901AESE+, MAX9201ESA+ delivers identical speed and pinout with half the power, making it the preferred upgrade path; LM319M/NOPB trades speed and integration for broader supply range and legacy availability - neither is pin-compatible with MAX901AESE+'s SO-16 layout.
Availability
MAX901AESE+ is available at Aetrix Electronics and suitable for high-speed data acquisition, industrial sensor monitoring, and precision PWM generation requiring stable component supply across extended temperature ranges.
Supply support for MAX901AESE+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX900–MAX903 family was designed specifically for high-speed, low-power voltage comparison in data-conversion and timing-critical systems - prioritizing nanosecond-scale propagation, rail-to-rail input capability, and TTL interoperability.
FAQ
What is the maximum operating temperature range for MAX901AESE+?
The MAX901AESE+ is rated for operation from -40°C to +85°C, as indicated by the 'E' suffix in its ordering code. This extended temperature grade ensures reliable performance in industrial control cabinets, outdoor instrumentation, and automotive under-hood environments where ambient temperatures exceed commercial-grade limits. All electrical specifications in the datasheet are guaranteed across this full range.
Does MAX901AESE+ include internal latch functionality?
No, MAX901AESE+ does not include internal latch inputs. Unlike MAX900/MAX902/MAX903, the MAX901AESE+ omits latch circuitry entirely - pins 4 and 11 are N.C. (no connection). This simplifies control logic but requires external flip-flops or microcontroller GPIO to hold comparator states if latching is needed in the application.
Can MAX901AESE+ operate from a single +5V supply?
Yes, MAX901AESE+ supports single +5V operation: connect VEE to GND, VCC to +5V, and VDD to +5V. The input common-mode range extends to the negative rail (VEE), enabling ground-referenced inputs. Output stages remain fully TTL-compatible, and power dissipation stays within 70mW per comparator under these conditions.
What is the recommended decoupling for MAX901AESE+?
Use separate 100nF ceramic capacitors placed within 2mm of each supply pin: one between VCC and VEE, one between VDD and GND. Avoid shared vias or traces. For high-speed stability, add a 10µF tantalum or aluminum electrolytic capacitor near the device's power entry point. Layout guidelines emphasize short, low-inductance paths to minimize ground bounce and supply ripple coupling.
Is MAX901AESE+ still recommended for new designs?
No - Maxim explicitly states "Not Recommended for New Designs" due to discontinuation of the wafer process used to manufacture the MAX900–MAX903 family. While MAX901AESE+ remains available for existing designs and legacy support, Maxim recommends the pin-compatible MAX9201ESA+ as the designated replacement, offering identical speed and half the power consumption.
MAX901AESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- TTL
- Voltage - Supply, Single/Dual (±):
- 5V ~ 10V, ±2.5V ~ 5V
- :
- 2mV @ ±5V
- Voltage - Input Offset (Max):
- 6µA @ ±5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 15mA,12mA,6mA
- Current - Quiescent (Max):
- 86.02dB CMRR, 86.02dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX901AESE+ FAQ
1.How can I place an order for MAX901AESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901AESE+ 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 MAX901AESE+ reliable?
The price and inventory of MAX901AESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901AESE+ is usually 5 days.
3.What payment methods are accepted for MAX901AESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901AESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901AESE+?
MAX901AESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901AESE+ 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 MAX901AESE+?
For technical support, including MAX901AESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901AESE+ requirements.
6.How does Aetrix verify that MAX901AESE+ is sourced from the original manufacturer or authorized distributors?
All MAX901AESE+ 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 MAX901AESE+ meets industry standards.
7.What is the process for return or replacement of MAX901AESE+?
All MAX901AESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX901AESE+, 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 MAX901AESE+ part is unused and in its original packaging.
Return procedure for MAX901AESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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