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Analog Devices Inc./Maxim Integrated MAX900ACPP
- Part No.:
- MAX900ACPP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX900ACPP.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
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Product details
Overview
MAX900ACPP from Maxim Integrated is a quad high-speed voltage comparator with differential analog inputs, TTL-compatible outputs, and independent latch inputs per channel. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, and supports ±5V or single +5V analog supplies with input common-mode range extending to the negative rail. It is used in high-speed A/D converter front-ends and line receivers requiring precise timing discrimination.
For engineers reviewing the MAX900ACPP datasheet, MAX900ACPP pinout, MAX900ACPP application, or MAX900ACPP equivalent, key selection criteria include latch-enabled output hold capability, dual-supply flexibility (VCC/VEE + VDD), TTL-level timing compatibility, and verified operation across 0°C to +70°C industrial temperature range.
Technical Context
The MAX900ACPP implements four independent high-gain comparators with internal active pull-ups on TTL outputs and dedicated latch control inputs (LE1–LE4) that freeze output states on low assertion. Its analog input stage accepts common-mode voltages from VEE − 0.1V to VCC − 2.25V, enabling ground-sensing operation when VEE = GND.
Propagation delay is specified at 8ns (typ) for both rising and falling edges under 5mV overdrive into 15pF load, with ≤2ns skew between channels. Power delivery separates analog (VCC/VEE) and digital (VDD) domains, supporting mixed-signal isolation via independent supply pins and substrate connection at VEE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical (5mV overdrive, CL = 15pF); enables sub-10ns decision timing in sampling circuits. |
| Power Dissipation | 18mW per comparator at +5V; allows dense quad-channel deployment without thermal derating. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V; supports single-supply ground-referenced sensing with VEE = GND. |
| Output Type | TTL-compatible with active internal pull-up; drives standard LS-TTL loads without external resistors. |
| Latch Inputs | Four independent TTL-compatible latch inputs (LE1–LE4); hold output state on logic-low assertion. |
| Supply Flexibility | Separate VCC/VEE (±5V or +5V/+10V analog) and VDD (+5V digital); isolates analog signal path from digital noise. |
| Input Offset Voltage | 2.0mV typical (25°C); ensures <10mV threshold error in precision level-detection applications. |
Pinout & Package
MAX900ACPP is housed in a 20-pin plastic DIP package (0°C to +70°C operating range). Pin functions are validated per Maxim's official pin configuration diagram for MAX900.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN− (A, B, C, D) | Negative input terminals for each of four comparator channels; differential pair reference point. |
| 2, 9, 12, 19 | IN+ (A, B, C, D) | Positive input terminals for each channel; accept signals up to VCC + 0.2V safely. |
| 3 | GND | Digital ground reference; connects to system DGND and decoupling capacitor return. |
| 4, 7, 14, 17 | LATCH (A, B, C, D) | TTL-compatible latch enable inputs; low level freezes corresponding comparator output state. |
| 5, 6, 15, 16 | OUT (A, B, C, D) | TTL-output terminals with internal pull-up; drive fan-out of four LS-TTL loads directly. |
| 8 | VEE | Negative analog supply and substrate connection; must be tied to lowest system potential. |
| 13 | VDD | +5V digital supply; powers latch logic and output drivers; not tolerant of voltage variation. |
| 18 | VCC | Positive analog supply; supports +5V to +10V range; sets upper input common-mode limit. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns propagation delay | Enables reliable sampling at >100MHz clock rates in A/D converter trigger paths. |
| Independent per-channel latches | Allows asynchronous capture and hold of four separate analog events without shared control logic. |
| Input range includes negative rail | Permits direct interface to bipolar sensors or AC-coupled signals without level-shifting circuitry. |
| Separate analog/digital supplies | Reduces digital switching noise coupling into analog comparators via dedicated VCC/VEE and VDD domains. |
| TTL-compatible outputs | Eliminates need for external pull-up resistors and ensures interoperability with legacy logic families. |
Applications
| High-Speed A/D Converter Front-End | Line Receiver with Signal Integrity Monitoring |
|---|---|
|
Use Scenario: Capturing fast-rising analog thresholds before successive approximation register (SAR) conversion. IC Role / Device Role / Timing Role: Quad comparator provides synchronized, low-jitter decision points for multi-bit flash or pipeline ADC architectures. Use Value: 8ns propagation delay minimizes aperture uncertainty; latch inputs allow strobed sampling aligned to system clock edges. |
Use Scenario: Detecting valid data transitions on high-speed serial bus lines subject to jitter and noise. IC Role / Device Role / Timing Role: Acts as a windowed threshold detector with hysteresis enabled via external feedback to reject false triggers. Use Value: Input common-mode range down to VEE supports detection of signals referenced to negative bias rails; TTL outputs interface directly to FPGA input registers. |
| Threshold Detector in PWM Motor Control | Programmable Alarm System with DAC Integration |
|
Use Scenario: Comparing sensed current/voltage against dynamically adjusted reference in closed-loop motor drives. IC Role / Device Role / Timing Role: Comparator channel monitors phase current zero-crossing or overcurrent fault condition with sub-10ns response. Use Value: Latch inputs synchronize fault capture to PWM dead-time intervals; low power (18mW/channel) reduces thermal load in compact inverters. |
Use Scenario: Eight-channel analog monitoring using paired MAX900ACPP and MX7228 octal DAC for programmable upper/lower limits. IC Role / Device Role / Timing Role: Four comparators per MAX900ACPP monitor two transducer pairs; latches hold alarm state until host MCU reads status. Use Value: Independent latch control per channel eliminates need for external SRAM or GPIO expansion; TTL outputs simplify interface to microcontroller interrupt inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9202CPE+ | Pin-for-pin compatible; 8ns propagation delay; 9mW/comparator (half power of MAX900ACPP); same latch functionality. | Designed for new designs; supported lifecycle; identical footprint and timing but lower thermal load. | Select MAX9202CPE+ for new designs requiring drop-in replacement with improved power efficiency and long-term availability. |
| LM339ADR | No latch inputs; 1.3µs propagation delay; 0.7mW/comparator; open-collector outputs require external pull-ups. | Suitable for low-speed, cost-sensitive applications where latch hold and nanosecond timing are unnecessary. | Choose LM339ADR only when speed and latch features are not required, and board space/power constraints permit slower response. |
Compared with MAX900ACPP, MAX9202CPE+ offers identical timing and latch capability with half the power dissipation and active manufacturing support, while LM339ADR trades speed and integration for cost and ubiquity in non-critical threshold detection.
Availability
MAX900ACPP is available at Aetrix Electronics and suitable for high-speed data sampling, line receiver design, and programmable alarm systems requiring stable component supply despite its Not Recommended for New Designs status.
Supply support for MAX900ACPP 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 MAX900 family was designed for high-speed, low-power analog decision-making in data acquisition and real-time signal conditioning systems where nanosecond timing and latch-controlled capture are critical.
FAQ
What is the operating temperature range for MAX900ACPP?
The MAX900ACPP is rated for operation from 0°C to +70°C. This commercial-grade temperature range is confirmed in the official ordering information table and applies specifically to the ACPP variant. The device meets all electrical specifications within this range, including propagation delay, input offset voltage, and latch timing parameters. MAX900ACPP is not qualified for extended industrial temperatures; for -40°C to +85°C operation, the MAX900AEPP variant must be selected.
Does MAX900ACPP support single-supply operation?
Yes, MAX900ACPP supports true single-supply operation with VEE tied to ground and VCC set to +5V to +10V. Its input common-mode range extends to VEE − 0.1V, enabling ground-referenced input signals without level shifting. The TTL outputs remain functional with VDD = +5V, and the internal pull-ups ensure valid logic levels even with no external components. This configuration is explicitly validated in Figure 1A of the datasheet.
Are the latch inputs on MAX900ACPP TTL-compatible?
Yes, the latch inputs (pins 4, 7, 14, 17) on MAX900ACPP are fully TTL-compatible: VLH = 1.4V to 2.0V (min/max), VLL = 0.8V to 1.4V (min/max), and input currents are ≤20µA. When driven low, each latch freezes its corresponding comparator output state; when high, the comparator operates transparently. This behavior is identical across all MAX900 variants and is tested per Note 3 in the Electrical Characteristics table.
What is the maximum allowable analog supply voltage for MAX900ACPP?
The absolute maximum analog supply voltage (VCC to VEE) for MAX900ACPP is +12V, as stated in the Absolute Maximum Ratings table. For reliable operation, VCC should be maintained between +5V and +10V when VEE = GND, or ±5V in split-supply mode. Exceeding +10.5V on VCC (per Note 2) risks violating the input common-mode upper limit and may degrade propagation delay consistency or increase input bias current.
Why is MAX900ACPP marked "Not Recommended for New Designs"?
MAX900ACPP is marked "Not Recommended for New Designs" because its fabrication process at an external wafer foundry has been discontinued, and Maxim no longer manufactures it. While the datasheet remains available for legacy support, long-term supply is limited to existing inventory. Engineers designing new systems should consider the pin-compatible MAX9202CPE+, which offers identical performance with half the power dissipation and full production support.
MAX900ACPP 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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 20-PDIP
MAX900ACPP FAQ
1.How can I place an order for MAX900ACPP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX900ACPP 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 MAX900ACPP reliable?
The price and inventory of MAX900ACPP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX900ACPP is usually 5 days.
3.What payment methods are accepted for MAX900ACPP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX900ACPP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX900ACPP?
MAX900ACPP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX900ACPP 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 MAX900ACPP?
For technical support, including MAX900ACPP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX900ACPP requirements.
6.How does Aetrix verify that MAX900ACPP is sourced from the original manufacturer or authorized distributors?
All MAX900ACPP 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 MAX900ACPP meets industry standards.
7.What is the process for return or replacement of MAX900ACPP?
All MAX900ACPP units undergo pre-shipment inspection (PSI). If there is an issue with MAX900ACPP, 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 MAX900ACPP part is unused and in its original packaging.
Return procedure for MAX900ACPP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX900ACPP Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
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