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Analog Devices Inc./Maxim Integrated MAX900BCWP+
- Part No.:
- MAX900BCWP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX900BCWP+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,406
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Product details
Overview
MAX900BCWP+ 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 split (±5V) or single-supply (VCC = +5V to +10V, VEE = GND) operation - ideal for high-speed A/D converter front-ends and line receivers.
For engineers reviewing the MAX900BCWP+ datasheet, MAX900BCWP+ pinout, MAX900BCWP+ application, or MAX900BCWP+ equivalent, key selection criteria include latch-enabled output hold capability, rail-to-rail input common-mode range including the negative rail, TTL-level timing compatibility, and 20-pin wide SO package suitability for space-constrained mixed-signal PCBs.
Technical Context
The MAX900BCWP+ integrates four independent comparators sharing separate analog (VCC/VEE) and digital (VDD) supply domains, enabling noise isolation in mixed-signal systems. Its input stage accepts common-mode voltages from VEE − 0.1V to VCC − 2.25V, and its TTL-output stage drives up to four low-power Schottky TTL loads with VOH ≥ 2.4V and VOL ≤ 0.4V at 8mA sink.
Latch control is implemented per channel via dedicated TTL-compatible inputs (LATCH A–D), allowing asynchronous output state capture and hold; this functionality is absent in MAX901 but retained across MAX900/MAX902/MAX903 variants. Propagation delay matching between channels is specified at ∆tpd ≤ 2.0ns (typ) over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical at 5mV overdrive - enables sampling of >100MHz signals in A/D interfaces |
| Power Dissipation | 18mW per comparator at +5V - balances speed and thermal load in dense layouts |
| Input Common-Mode Range | Includes VEE rail (e.g., ground when VEE = GND) - supports single-supply ground-referenced sensing |
| Supply Flexibility | VCC = +5V to +10V or ±5V; VDD = +5V only - decouples analog precision from digital noise |
| Output Drive | TTL-compatible: VOH ≥ 2.4V @ 1mA source, VOL ≤ 0.4V @ 8mA sink - interoperable with legacy logic families |
| Latch Input Threshold | VLH = 1.4V to 2.0V, VLL = 0.8V to 1.4V - compatible with standard TTL logic levels |
| Input Offset Voltage | 1mV to 6mV over full temperature range - sets minimum detectable signal differential |
Pinout & Package
MAX900BCWP+ is housed in a 20-pin wide SO (SOIC-W) package with 0.3" body width and standard 0.050" pitch. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN− (A, B, C, D) | Negative input terminals for each of four comparator channels |
| 2, 9, 12, 19 | IN+ (A, B, C, D) | Positive input terminals for each of four comparator channels |
| 3 | GND | Ground reference for digital circuitry and substrate tie |
| 4, 7, 14, 17 | LATCH (A, B, C, D) | Asynchronous TTL latch enable per channel - drives output into hold state when low |
| 5, 6, 15, 16 | OUT (A, B, C, D) | TTL-compatible open-collector outputs with internal pull-ups |
| 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 stage |
| 18 | VCC | Positive analog supply - adjustable from +5V to +10V for gain/speed trade-off |
Key Features
| Feature | Design Value |
|---|---|
| Differential analog inputs with rail-inclusive common-mode range | Enables ground-sensing in single-supply systems without level-shifting circuitry |
| Per-channel TTL latch inputs | Allows independent capture and hold of comparator states for synchronized data acquisition |
| Separate analog and digital supplies (VCC/VEE + VDD) | Reduces digital switching noise coupling into analog threshold detection paths |
| 8ns propagation delay at 5mV overdrive | Supports real-time discrimination of fast transient events in sampling and trigger circuits |
| 18mW per comparator power consumption | Minimizes self-heating in multi-channel designs while maintaining nanosecond response |
Applications
| High-Speed A/D Converter Front-End | Line Receiver with Signal Integrity Monitoring |
|---|---|
|
Use Scenario: Digitizing analog waveforms at >50MSPS using flash or pipeline ADC architectures. IC Role / Device Role / Timing Role: Quad comparator array providing parallel threshold comparison for coarse quantization or windowed detection prior to ADC sampling. Use Value: 8ns propagation delay ensures sub-12.5ns decision windows, directly supporting 80+ MSPS conversion rates without timing skew penalties. |
Use Scenario: Receiving differential or single-ended high-speed serial data lines subject to jitter and amplitude variation. IC Role / Device Role / Timing Role: High-speed threshold detector converting analog line signals into clean TTL logic levels with precise hysteresis control via external feedback. Use Value: Input common-mode range extending to VEE allows direct interfacing to -5V referenced RS-422/RS-485 receivers without level translation. |
| PWM Timing Reference Generator | Multi-Channel Alarm Threshold Monitor |
|
Use Scenario: Generating precise PWM dead-time or edge-aligned timing references in motor control inverters. IC Role / Device Role / Timing Role: Comparator comparing sawtooth/ramp waveform against programmable DAC outputs to generate synchronous PWM edges. Use Value: Matched propagation delays (∆tpd ≤ 2ns) across all four channels ensure consistent edge placement across multiple PWM phases. |
Use Scenario: Simultaneous monitoring of eight sensor outputs (e.g., temperature, voltage, current) against independently set upper/lower limits. IC Role / Device Role / Timing Role: Two MAX900BCWP+ devices (quad comparators each) paired with octal DAC (e.g., MX7228) to implement programmable alarm thresholds. Use Value: Per-channel latch inputs allow atomic capture of alarm states during host processor read cycles, preventing missed transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9202CWP+ | Pin-for-pin compatible; 8ns propagation delay; 9mW/comparator - half the power of MAX900BCWP+ | Same latch functionality and supply flexibility; optimized for lower thermal footprint in high-density designs | Select for new designs requiring identical timing and latch behavior with improved power efficiency |
| LM339MX/NOPB | Quad general-purpose comparator; 1.3µs propagation delay; no latch inputs; single-supply only (2V–36V) | Not suitable for >1MHz applications; lacks per-channel latching and split-supply support | Select only for cost-sensitive, low-speed threshold detection where nanosecond timing and latch hold are unnecessary |
Compared with MAX900BCWP+, MAX9202CWP+ offers identical speed and latch architecture at half the power, making it the preferred drop-in upgrade; LM339MX/NOPB provides basic quad comparison at vastly lower speed and zero latch capability - suitable only for non-critical DC or low-frequency monitoring.
Availability
MAX900BCWP+ is available at Aetrix Electronics and suitable for high-speed data sampling, line receiver interfaces, and PWM timing reference generation requiring stable component supply across industrial and test equipment lifecycles.
Supply support for MAX900BCWP+ 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 design and manufacturing company specializing in high-performance analog, mixed-signal, and RF solutions for industrial, communications, and computing markets.
The MAX900 family was developed for high-speed precision threshold detection in data acquisition and communication systems, emphasizing nanosecond timing fidelity, supply-domain isolation, and latch-controlled output stability.
FAQ
What is the operating temperature range for MAX900BCWP+?
The MAX900BCWP+ is specified for 0°C to +70°C operation. This commercial-grade temperature range aligns with its 20-pin wide SO packaging and targets applications in test equipment, data acquisition modules, and industrial controllers where ambient conditions remain within standard office or lab environments. The 'B' grade denotes tighter initial offset voltage (1–3mV typ) versus 'A' grade, enhancing accuracy at room temperature.
Does MAX900BCWP+ support single-supply operation?
Yes, MAX900BCWP+ supports true single-supply operation: VEE can be tied to ground while VCC is set to +5V to +10V, and VDD remains at +5V. Its input common-mode range extends to VEE − 0.1V, enabling ground-referenced input signals without external level shifting. This configuration is explicitly validated in the datasheet's Figure 1A and electrical characteristics tables.
What is the function of the LATCH pins on MAX900BCWP+?
The LATCH pins (pins 4, 7, 14, 17) on MAX900BCWP+ provide per-channel asynchronous output hold control. When driven low, each latch freezes the corresponding comparator's output state regardless of subsequent input changes; when high, the comparator operates transparently. This enables synchronized sampling across multiple channels - a capability confirmed in the MAX900's timing diagram (Figure 2) and absent in MAX901.
Is MAX900BCWP+ pin-compatible with other MAX900 variants?
Yes, MAX900BCWP+ shares identical 20-pin wide SO pinout with MAX900ACWP, MAX900AEWP, and MAX900BEWP. All MAX900 variants in the wide SO package use the same pin configuration shown in the datasheet's "MAX900" top-view diagram, including VCC (pin 18), VEE (pin 8), VDD (pin 13), and channel-specific IN+/IN−/OUT/LATCH assignments. Temperature grade and initial offset voltage differ, but mechanical and electrical connectivity is identical.
Why is MAX900BCWP+ labeled "Not Recommended for New Designs"?
MAX900BCWP+ is labeled "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 MAX9202CWP+ as a direct replacement offering identical pinout, speed, and latch features with 50% lower power dissipation. Legacy design continuity is maintained, but new projects should adopt the MAX9202 series for long-term supply assurance.
MAX900BCWP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- 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
- :
- 4mV @ 5V
- Voltage - Input Offset (Max):
- 10µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 6mA, 12mA, 15mA
- Current - Quiescent (Max):
- -82dB, -80dB
- CMRR, PSRR (Typ):
- 8ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 20-SOIC
MAX900BCWP+ FAQ
1.How can I place an order for MAX900BCWP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX900BCWP+ 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 MAX900BCWP+ reliable?
The price and inventory of MAX900BCWP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX900BCWP+ is usually 5 days.
3.What payment methods are accepted for MAX900BCWP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX900BCWP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX900BCWP+?
MAX900BCWP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX900BCWP+ 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 MAX900BCWP+?
For technical support, including MAX900BCWP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX900BCWP+ requirements.
6.How does Aetrix verify that MAX900BCWP+ is sourced from the original manufacturer or authorized distributors?
All MAX900BCWP+ 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 MAX900BCWP+ meets industry standards.
7.What is the process for return or replacement of MAX900BCWP+?
All MAX900BCWP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX900BCWP+, 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 MAX900BCWP+ part is unused and in its original packaging.
Return procedure for MAX900BCWP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX900BCWP+ Tags
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LM393DT
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LM2903P
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