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Analog Devices Inc./Maxim Integrated MAX901BCSE
- Part No.:
- MAX901BCSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX901BCSE.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,734
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Product details
Overview
MAX901BCSE 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 is used in high-speed A/D converters, line receivers, and PWM circuits where fast decision-making with ground-sensing capability is required.
For engineers reviewing the MAX901BCSE datasheet, MAX901BCSE pinout, MAX901BCSE application, or MAX901BCSE equivalent, this page delivers 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 MAX901BCSE implements two independent high-gain, wide-bandwidth comparators with separate analog (VCC/VEE) and digital (VDD) supply domains, enabling noise isolation in mixed-signal systems. Its input stage supports common-mode voltages down to VEE − 0.1V, allowing true ground-referenced sensing when VEE = GND.
Unlike the latch-equipped MAX900/MAX902/MAX903, the MAX901BCSE omits latch inputs entirely - confirmed by datasheet Note 3 and Pin Descriptions table - resulting in transparent, real-time output response without hold functionality. Output stages are TTL-compatible with 2.4V VOH min and 0.4V VOL max under 8mA sink load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical (5mV overdrive, CL = 15pF): enables sampling at >100MHz decision rates in A/D front-ends. |
| Input Offset Voltage | 1–3mV (full temp range): ensures ≤3mV threshold uncertainty across -40°C to +85°C operation. |
| Supply Configuration | Separate VCC/VEE (±5V) or single +5V (VEE = GND): supports both split-rail precision and single-supply simplicity. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V: allows direct ground-level detection with no level-shifting circuitry. |
| Power Dissipation | 70mW per comparator (VCC = VDD = +5V, VEE = 0): enables dual-channel operation within 140mW total at room temperature. |
| Output Drive | TTL-compatible: VOH ≥ 2.4V @ 1mA source, VOL ≤ 0.4V @ 8mA sink - directly interfaces with LS-TTL and standard logic families. |
| Input Bias Current | 4–10µA (full temp range): limits voltage error on high-impedance sensor sources to <10mV at 1kΩ source resistance. |
Pinout & Package
MAX901BCSE is supplied in a 16-pin narrow SO (Small Outline) package, 3.9mm body width, 1.27mm pitch, JEDEC MS-012AC compliant. Pin 1 is marked with a beveled corner or dot; device orientation follows standard SO top-view convention.
| 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 internal offset voltage. |
| 2, 9 | IN+ (A, B) | Positive input terminals for Channel A and Channel B - accept signals up to VCC − 2.25V with VEE − 0.1V lower bound. |
| 3 | GND | Digital ground reference for VDD and output stage - must be tied to system DGND with low-inductance path. |
| 4, 11 | LATCH (A, B) | No connection (N.C.) - MAX901BCSE has no latch function; these pins are unconnected internally and must be left floating or tied to GND. |
| 5, 12 | OUT (A, B) | TTL-output terminals - drive loads up to 8mA sink; require external pull-up only if interfacing with non-TTL logic. |
| 6, 13 | N.C. | No connection - not bonded or connected internally; must remain unconnected on PCB. |
| 7 | VEE | Negative analog supply and substrate terminal - set to GND for single-supply operation or −5V for split-rail use. |
| 10 | VDD | +5V digital supply - powers output stage and must be decoupled with 100nF ceramic capacitor near pin. |
| 14 | VCC | Positive analog supply - accepts +5V to +10V; requires dedicated 100nF decoupling capacitor adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns propagation delay | Enables sub-10ns decision latency in time-critical sampling paths, supporting >100MHz effective conversion rates. |
| Ground-sensing input range | Allows direct interface with 0V-referenced sensors (e.g., current shunts, thermocouples) without external biasing networks. |
| Independent analog/digital supplies | Permits physical separation of analog and digital ground planes, reducing coupling-induced noise in mixed-signal PCBs. |
| TTL-compatible outputs | Eliminates need for level translators when driving standard logic families, simplifying inter-stage connectivity. |
| Low 140mW total power (dual channel) | Supports dense placement in thermally constrained industrial modules without forced-air cooling or thermal derating. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
|
Use Scenario: Front-end comparator bank in flash or pipeline ADC architectures sampling at 50–100MSPS. IC Role / Device Role / Timing Role: Dual-channel voltage discriminator generating parallel bit decisions synchronized to clock edge. Use Value: 8ns propagation delay ensures setup/hold timing margins are met even with 10ns clock periods, minimizing aperture jitter. |
Use Scenario: RS-422/RS-485 receiver stage converting differential bus signals to single-ended TTL logic levels. IC Role / Device Role / Timing Role: High-speed differential comparator translating bus voltage differences into clean digital states. Use Value: Input common-mode range including GND allows direct termination to system ground without bias resistors. |
| PWM Circuits | Threshold Detectors |
|
Use Scenario: Real-time duty-cycle comparison in digital power supply controllers using triangle-wave carriers. IC Role / Device Role / Timing Role: Fast comparator comparing feedback voltage against ramp generator output to generate PWM edges. Use Value: Sub-10ns delay minimizes pulse-width distortion across full 0–100% duty cycle range, improving regulation accuracy. |
Use Scenario: Overvoltage/undervoltage monitoring in FPGA or microcontroller power rails. IC Role / Device Role / Timing Role: Precision threshold detector asserting fault flag when supply deviates beyond ±3% window. Use Value: 1–3mV input offset ensures detection thresholds remain stable across industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9201CSA+ | Pin-for-pin compatible, same 8ns delay, but 9mW/comparator (half power), no latch, wider supply range (+2.7V to +12V). | Supports modern low-voltage systems (e.g., +3.3V logic) and extended battery-operated designs where MAX901BCSE's +5V-only VDD is limiting. | Select MAX9201CSA+ for new designs requiring lower power, broader supply flexibility, and identical layout compatibility. |
| LM319M/NOPB | Slower (80ns delay), higher power (120mW), single +5V supply only, no separate VCC/VEE - no ground-sensing capability. | Suitable only for non-critical timing applications (e.g., slow control loops) where 8ns performance is unnecessary and cost is primary. | Choose LM319M/NOPB only for cost-sensitive, low-speed replacements where board rework is acceptable and timing margin is ample. |
Compared with MAX901BCSE, MAX9201CSA+ delivers identical speed with half the power and broader supply support, while LM319M/NOPB trades significant speed and flexibility for lower unit cost in non-timing-critical roles.
Availability
MAX901BCSE is available at Aetrix Electronics and suitable for high-speed A/D converter front-ends, industrial line receivers, and PWM controller feedback paths requiring stable component supply for legacy system repair, obsolescence mitigation, and long-lifecycle industrial deployments.
Supply support for MAX901BCSE 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 for high-speed data acquisition and real-time signal discrimination, targeting applications demanding nanosecond-level decision latency with low power and robust analog input handling.
FAQ
What is the operating temperature range for the MAX901BCSE?
The MAX901BCSE is rated for 0°C to +70°C ambient operation, as indicated by the 'B' grade suffix and confirmed in the Ordering Information table. This commercial-grade temperature range applies specifically to the MAX901BCSE variant and differs from the extended −40°C to +85°C range offered by MAX901BESE and MAX901AESE variants.
Does the MAX901BCSE include latch functionality?
No, the MAX901BCSE does not include latch inputs. Datasheet Note 3 explicitly states "Specification does not apply to MAX901", and the Pin Descriptions table confirms Pins 4 and 11 are N.C. (no connection). Unlike MAX900/MAX902/MAX903, the MAX901BCSE provides only transparent comparator behavior with no output hold capability.
What supply voltages does the MAX901BCSE require?
The MAX901BCSE requires three supply connections: VCC (positive analog, +5V to +10V), VEE (negative analog or substrate, typically GND or −5V), and VDD (digital +5V). VDD must be exactly +5V; VCC and VEE may be configured as ±5V split supplies or +5V/GND single supply - no other VDD voltage is supported.
Can the MAX901BCSE operate from a single +3.3V supply?
No, the MAX901BCSE cannot operate from +3.3V. Its VDD pin requires +5V (absolute maximum 7V, minimum 4.75V per datasheet), and VCC must be ≥+5V. For +3.3V systems, consider the pin-compatible MAX9201CSA+, which supports +2.7V to +12V digital and analog supplies.
What is the input common-mode voltage range of the MAX901BCSE?
The MAX901BCSE input common-mode range is VEE − 0.1V to VCC − 2.25V, as specified in the Electrical Characteristics table. When operated from +5V/GND (VEE = GND), this permits inputs from −0.1V to +2.75V - enabling true ground-referenced sensing without external level shifting.
MAX901BCSE 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
- :
- 4mV @ ±5V
- Voltage - Input Offset (Max):
- 10µA @ ±5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 15mA,12mA,6mA
- Current - Quiescent (Max):
- 82.5dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX901BCSE FAQ
1.How can I place an order for MAX901BCSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901BCSE 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 MAX901BCSE reliable?
The price and inventory of MAX901BCSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901BCSE is usually 5 days.
3.What payment methods are accepted for MAX901BCSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901BCSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901BCSE?
MAX901BCSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901BCSE 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 MAX901BCSE?
For technical support, including MAX901BCSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901BCSE requirements.
6.How does Aetrix verify that MAX901BCSE is sourced from the original manufacturer or authorized distributors?
All MAX901BCSE 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 MAX901BCSE meets industry standards.
7.What is the process for return or replacement of MAX901BCSE?
All MAX901BCSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX901BCSE, 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 MAX901BCSE part is unused and in its original packaging.
Return procedure for MAX901BCSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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