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Analog Devices Inc./Maxim Integrated MAX900AEPP+
- Part No.:
- MAX900AEPP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX900AEPP+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:378
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Product details
Overview
MAX900AEPP+ from Maxim Integrated is a quad high-speed, low-power voltage comparator with differential analog inputs and TTL-logic outputs featuring active internal pull-ups. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, supports ±5V or +5V to +10V analog supplies, and operates across -40°C to +85°C - ideal for high-speed A/D converter front-ends and line receivers.
For engineers reviewing the MAX900AEPP+ datasheet, MAX900AEPP+ pinout, MAX900AEPP+ application, or MAX900AEPP+ equivalent, key selection considerations include latch-enabled output hold capability, rail-to-rail input common-mode range including VEE, TTL-compatible output drive (fan-out of four), and separate analog/digital supply isolation for mixed-signal noise immunity.
Technical Context
The MAX900AEPP+ integrates four independent comparators in a single 20-pin plastic DIP package, each with dedicated IN+, IN-, OUT, and LATCH terminals. Its architecture supports flexible power configuration: dual supplies (±5V analog, +5V digital) or single +5V analog/digital with VEE grounded.
Each comparator features differential inputs with common-mode range extending to the negative rail (VEE − 0.1V), TTL-compatible outputs capable of sourcing 1mA and sinking 8mA, and independent latch inputs that freeze output states on logic-low assertion - a function absent in MAX901 but fully implemented in MAX900AEPP+.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical at 5mV overdrive - enables sampling of >100MHz signals in A/D and data-acquisition systems. |
| Power Dissipation | 18mW per comparator at +5V - reduces thermal load in dense PCB layouts and multi-channel systems. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V - allows ground-referenced sensing in single-supply configurations. |
| Output Drive | TTL-compatible: VOH ≥ 2.4V at 1mA source, VOL ≤ 0.4V at 8mA sink - directly interfaces legacy TTL logic without level-shifting. |
| Supply Flexibility | Analog supply: +5V to +10V or ±5V; digital supply: fixed +5V VDD - supports both industrial single-supply and precision split-rail designs. |
| Operating Temperature | -40°C to +85°C - qualified for extended industrial and automotive under-hood environments. |
| Latch Function | Independent TTL-compatible latch inputs per channel - enables synchronized capture of transient events across all four comparators. |
Pinout & Package
MAX900AEPP+ is housed in a 20-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is located at the top-left corner when viewed from the top with the notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN− (A, B, C, D) | Negative input terminals for channels A–D; differential pair with corresponding IN+ pins. |
| 2, 9, 12, 19 | IN+ (A, B, C, D) | Positive input terminals for channels A–D; full differential operation with rail-inclusive common-mode range. |
| 3 | GND | Ground reference for digital logic and latch circuitry; must be tied to system DGND or shared AGND depending on supply configuration. |
| 4, 7, 14, 17 | LATCH (A, B, C, D) | TTL-compatible control inputs; logic low freezes respective comparator output state; no effect on MAX901. |
| 5, 6, 15, 16 | OUT (A, B, C, D) | TTL-output terminals with active pull-up; drive standard LS-TTL loads (fan-out of four) directly. |
| 8 | VEE | Negative analog supply and substrate connection; required for split-rail operation; may be grounded for single-supply use. |
| 13 | VDD | +5V digital supply only; powers latch logic and output stage; not adjustable. |
| 18 | VCC | Positive analog supply: +5V to +10V; sets upper input common-mode limit and analog gain stability. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one package reduce board space and inter-channel skew in multi-threshold detection. |
| 8ns propagation delay | Enables accurate timing discrimination in high-speed sampling circuits, such as flash ADCs and pulse-width measurement. |
| Rail-inclusive input range | Supports ground-sensing applications without level-shifting when VEE = GND and VCC = +5V. |
| Separate analog/digital supplies | Minimizes digital switching noise coupling into analog inputs via dedicated VCC/VEE and VDD paths with independent decoupling. |
| Per-channel latch control | Allows asynchronous or synchronized event capture across multiple signal paths using external timing or microcontroller GPIO. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
Use Scenario: Front-end threshold comparison in flash or pipeline ADC architectures requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Voltage comparator providing fast, deterministic decision edges for parallel quantization stages. Use Value: 8ns propagation delay ensures minimal aperture uncertainty and supports >100MSPS conversion rates. | Use Scenario: High-fidelity digital signal recovery from noisy transmission lines (e.g., RS-422, LVDS stubs). IC Role / Device Role / Timing Role: Differential receiver converting small-swing analog line signals into clean TTL logic levels. Use Value: Input common-mode range including VEE allows direct interfacing to ground-referenced or negative-biased line drivers. |
| Threshold Detectors | PWM Circuits |
Use Scenario: Multi-level fault monitoring in motor drives or power supplies detecting overvoltage, undervoltage, and current-limit thresholds. IC Role / Device Role / Timing Role: Quad comparator implementing simultaneous high/low trip points with latched status for diagnostics. Use Value: Independent latch inputs enable snapshot capture of transient faults before system reset or interrupt service. | Use Scenario: Precision edge alignment and dead-time insertion in synchronous buck or half-bridge gate driver control loops. IC Role / Device Role / Timing Role: Comparator generating PWM zero-crossing or slope-compare triggers with sub-10ns jitter. Use Value: Low propagation delay variation (∆tpd ≤ 2ns) ensures consistent duty-cycle accuracy across temperature and supply variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9201ESE+ | Pin-for-pin compatible, same 8ns propagation delay, but 9mW/comparator (50% lower power) and improved input offset drift (1.5µV/°C vs. 0.02mV/°C). | Preferred for new designs requiring extended temperature stability and reduced thermal footprint. | Select MAX9201ESE+ when upgrading legacy MAX900AEPP+ designs where layout reuse is critical and lower power is prioritized. |
| LM339MTX/NOPB | Quad comparator with 1.3µs typical propagation delay, no latch inputs, wider supply range (2V–36V), but 100× slower and no TTL output stage. | Suitable only for low-speed threshold detection where speed and latch functionality are not required. | Choose LM339MTX/NOPB only for cost-sensitive, non-critical DC or low-frequency monitoring - not a functional replacement for MAX900AEPP+. |
Compared with MAX900AEPP+, MAX9201ESE+ offers identical speed and pinout with halved power consumption and better thermal drift, while LM339MTX/NOPB trades speed and latch capability for ultra-wide supply range and cost - making it unsuitable for high-speed or synchronized capture use cases.
Availability
MAX900AEPP+ is available at Aetrix Electronics and suitable for high-speed data sampling, line receiver interfaces, and industrial threshold detection requiring stable component supply across extended temperature ranges.
Supply support for MAX900AEPP+ 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.
The MAX900 family was designed for high-speed, low-power analog signal discrimination in data acquisition, communications, and real-time control systems - emphasizing speed, latch synchronization, and supply flexibility.
FAQ
What is the operating temperature range of the MAX900AEPP+?
The MAX900AEPP+ is rated for operation from -40°C to +85°C, qualifying it for extended industrial environments. This grade ('E' suffix) exceeds the commercial 0°C to +70°C range of 'C'-grade variants like MAX900ACPP+. The specification is validated across all electrical parameters in the datasheet's full-temperature test conditions, including input offset voltage, propagation delay, and supply current.
Does the MAX900AEPP+ support single-supply operation?
Yes, the MAX900AEPP+ supports true single-supply operation with VEE grounded and VCC set between +5V and +10V. Its input common-mode range extends to VEE − 0.1V, enabling ground-referenced input sensing. The digital supply VDD remains fixed at +5V. This configuration is explicitly validated in the datasheet's Figure 1A and Electrical Characteristics tables under "full operating temperature" conditions.
What is the purpose of the LATCH pins on the MAX900AEPP+?
The LATCH pins (pins 4, 7, 14, 17) on the MAX900AEPP+ provide per-channel TTL-compatible control to freeze comparator output states. When driven low, each latch holds its associated output at the logic level present at the instant of the latch transition. This enables synchronized capture of transient events across all four channels - a capability confirmed in the MAX900-specific timing diagram (Figure 2) and absent in MAX901.
Is the MAX900AEPP+ pin-compatible with other MAX900 variants?
Yes, all MAX900 variants - including MAX900AEPP+, MAX900ACPP+, and MAX900BCWP+ - share identical 20-pin DIP/SO pinouts and electrical functionality. Differences are limited to temperature grade ('A'/'B', 'C'/'E') and package type (plastic DIP vs. wide SO). The pin configuration diagram labeled "MAX900" applies uniformly, and no redesign is needed when substituting within the same package format.
Why is the MAX900AEPP+ marked 'Not Recommended for New Designs'?
The MAX900AEPP+ is marked 'Not Recommended for New Designs' because its fabrication process at an external wafer foundry has been discontinued. While fully functional and supported for existing designs, Maxim recommends migration to the pin-compatible MAX9201 series (e.g., MAX9201ESE+) which offers identical speed, 50% lower power, and ongoing production - as stated in the official QuickView datasheet and ordering information section.
MAX900AEPP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Push-Pull, 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):
- 6mA, 12mA, 15mA
- Current - Quiescent (Max):
- -86dB, -86dB
- CMRR, PSRR (Typ):
- 8ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 20-PDIP
MAX900AEPP+ FAQ
1.How can I place an order for MAX900AEPP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX900AEPP+ 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 MAX900AEPP+ reliable?
The price and inventory of MAX900AEPP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX900AEPP+ is usually 5 days.
3.What payment methods are accepted for MAX900AEPP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX900AEPP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX900AEPP+?
MAX900AEPP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX900AEPP+ 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 MAX900AEPP+?
For technical support, including MAX900AEPP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX900AEPP+ requirements.
6.How does Aetrix verify that MAX900AEPP+ is sourced from the original manufacturer or authorized distributors?
All MAX900AEPP+ 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 MAX900AEPP+ meets industry standards.
7.What is the process for return or replacement of MAX900AEPP+?
All MAX900AEPP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX900AEPP+, 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 MAX900AEPP+ part is unused and in its original packaging.
Return procedure for MAX900AEPP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX900AEPP+ Tags
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LM2903P
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NCX2200GMAZ
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