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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:3,811
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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. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, and supports single-supply operation with input common-mode range extending to the negative rail. It is used in high-speed A/D converters, line receivers, and PWM circuits.
For engineers reviewing the MAX901AESE datasheet, MAX901AESE pinout, MAX901AESE application, or MAX901AESE equivalent, this page provides verified technical context, real-world design meaning of key specs, package-validated pin functions, and two confirmed alternative comparators for legacy system maintenance and redesign evaluation.
Technical Context
The MAX901AESE implements two independent high-gain, wide-bandwidth comparators with separate analog (VCC/VEE) and digital (VDD) supply domains. Its input stage accepts differential signals with common-mode voltage down to VEE − 0.1V, enabling ground-sensing operation when VEE = GND.
TTL-compatible outputs drive up to four LS-TTL loads, while internal pull-ups eliminate external components. Unlike MAX900/MAX902/MAX903, the MAX901AESE omits latch inputs - a functional distinction confirmed across all documentation and pin diagrams.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical at 5mV overdrive - enables sampling at >100MHz rates in A/D front-ends. |
| Power Dissipation | 18mW per comparator at +5V - allows dual-channel operation within 36mW total, suitable for thermally constrained PCBs. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V - supports rail-to-rail sensing with single +5V supply (VEE = GND). |
| Output Logic Type | TTL-compatible with active pull-up - directly interfaces with 74LS/74ALS logic without external resistors. |
| Supply Flexibility | Separate VCC/VEE (±5V or +5V to +10V) and VDD (+5V only) - isolates analog signal path from digital noise. |
| Input Offset Voltage | 1–3mV over full temperature range (−40°C to +85°C) - ensures stable threshold detection in industrial environments. |
Pinout & Package
MAX901AESE is supplied in a 16-pin narrow SOIC (SO) package with 1.27mm pitch, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN− (A, B) | Negative input terminals for Channel A and Channel B - differential pair inputs referenced to VEE. |
| 2, 9 | IN+ (A, B) | Positive input terminals for Channel A and Channel B - accept signals up to VCC + 0.2V. |
| 3 | GND | Digital ground reference - connects to system DGND; separate from analog substrate (VEE). |
| 4, 11 | LATCH (A, B) | No connection - MAX901AESE has no latch functionality; pins are internally unconnected (N.C.). |
| 5, 12 | OUT (A, B) | TTL-output terminals - sink up to 8mA or source 1mA; compatible with LS-TTL fan-out of 4. |
| 6, 13 | N.C. | No connection - not internally bonded; must be left floating or tied to GND per layout guidelines. |
| 7 | VEE | Negative analog supply and substrate terminal - sets lower rail for analog input range; may be grounded for single-supply use. |
| 10 | VDD | +5V digital supply - powers output stage and internal logic; must be regulated ±5%. |
| 14 | VCC | Positive analog supply - adjustable from +5V to +10V; determines upper input common-mode limit and output swing headroom. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | Two fully isolated channels share supplies but operate independently - eliminates crosstalk in multi-threshold monitoring. |
| No latch inputs | Eliminates latch control circuitry and timing constraints - simplifies interface design versus MAX900/MAX902/MAX903. |
| TTL output with internal pull-up | Removes need for external pull-up resistors - reduces BOM count and board space in high-density layouts. |
| Rail-to-rail input capability | Accepts inputs down to VEE − 0.1V - enables direct sensing of 0V-referenced signals without level-shifting. |
| Split-supply isolation architecture | Separate VCC/VEE and VDD domains - prevents digital switching noise from modulating analog input thresholds. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
Use Scenario: Front-end comparator array in flash or pipeline ADCs requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Voltage discrimination element converting analog input slices into parallel digital bits. Use Value: 8ns propagation delay ensures accurate sampling of >100MHz input signals without aperture jitter degradation. | Use Scenario: Differential signal recovery in RS-422/RS-485 receiver stages with noisy industrial cabling. IC Role / Device Role / Timing Role: Threshold detector translating differential line voltages into clean TTL logic levels. Use Value: Input common-mode range including VEE allows direct interfacing to −7V to +12V line swings when VEE = −5V. |
| PWM Circuits | Threshold Detectors |
Use Scenario: Duty-cycle comparison in digital power supply controllers using triangle-wave carriers. IC Role / Device Role / Timing Role: High-speed comparator generating edge-aligned PWM pulses via analog vs. ramp comparison. Use Value: 18mW per channel enables dual-channel implementation (e.g., upper/lower threshold) without thermal derating. | Use Scenario: Overvoltage/undervoltage monitoring in battery management or power sequencing systems. IC Role / Device Role / Timing Role: Precision threshold comparator asserting fault flags when supply rails deviate from setpoints. Use Value: 1–3mV input offset ensures ≤3mV absolute threshold error across −40°C to +85°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9201ESE+ | Pin-for-pin compatible dual comparator; 8ns propagation delay; 9mW/comparator (half power of MAX901AESE). | Same footprint and function, but lower power enables higher density in thermally limited designs. | Select for new designs requiring identical performance with improved efficiency and active production support. |
| LM319M/NOPB | Single-supply only (5–36V); 80ns propagation delay; no separate VDD/VCC/VEE domains. | Lacks split-supply noise isolation and speed - suitable only for non-critical, low-frequency threshold detection. | Use only where cost is primary constraint and 80ns delay is acceptable; not recommended for high-speed data acquisition. |
Compared with MAX901AESE, the MAX9201ESE+ offers identical speed and pinout with half the power consumption and ongoing manufacturability, while the LM319M/NOPB trades speed and supply flexibility for cost and availability in legacy low-speed systems.
Availability
MAX901AESE is available at Aetrix Electronics and suitable for high-speed data sampling, industrial line receivers, and PWM-based power control requiring stable component supply during legacy system maintenance and obsolescence mitigation.
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 semiconductor company specializing in precision analog, mixed-signal, and high-speed interface ICs for industrial, communications, and computing applications.
The MAX900–MAX903 family was designed for high-speed data acquisition systems requiring fast, low-power, TTL-compatible comparators with flexible supply architectures and robust input tolerance.
FAQ
What is the operating temperature range for MAX901AESE?
The MAX901AESE is specified for operation from −40°C to +85°C. This extended temperature grade makes it suitable for industrial automation, automotive under-hood monitoring, and outdoor equipment where ambient conditions exceed commercial-grade limits. All electrical characteristics in the datasheet - including input offset voltage (1–3mV), propagation delay (10–15ns), and supply current - are guaranteed across this full range.
Does MAX901AESE include latch functionality?
No, the MAX901AESE does not include latch inputs. Documentation explicitly states "The MAX901 provides the same performance as the MAX900/MAX902/MAX903 with the exception of the latches," and pin descriptions confirm pins 4 and 11 are N.C. (no connection). This distinguishes MAX901AESE from other members of the family and simplifies timing-critical applications where latch control is unnecessary.
What supply voltages does MAX901AESE require?
MAX901AESE requires three supplies: VCC (positive analog, +5V to +10V), VEE (negative analog or substrate, typically −5V or GND), and VDD (digital, +5V only). When operated from a single +5V supply, VEE is tied to GND and VCC = +5V; VDD remains +5V. The analog input common-mode range extends to VEE − 0.1V, enabling true ground-referenced sensing.
Can MAX901AESE drive standard TTL loads directly?
Yes, MAX901AESE features TTL-compatible outputs with internal active pull-ups, capable of sourcing 1mA and sinking 8mA. This allows direct interfacing with 74LS and 74ALS logic families without external pull-up resistors - verified by the "TTL-Compatible Outputs" feature and VOH/VOL specifications (VOH ≥ 2.4V at 1mA, VOL ≤ 0.4V at 8mA) across temperature and supply variations.
Is MAX901AESE recommended for new designs?
No, MAX901AESE is Not Recommended for New Designs. Maxim states the MAX900–MAX903 series was manufactured using an obsolete wafer process, and replacement parts like the pin-compatible MAX9201ESE+ are recommended for new projects. However, MAX901AESE remains supported for legacy system repair, obsolescence management, and long-life industrial deployments where redesign is impractical.
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:
- Obsolete
- 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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