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Analog Devices Inc./Maxim Integrated MAX901BESE+T
- Part No.:
- MAX901BESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX901BESE+T.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,536
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Product details
Overview
MAX901BESE+T from Maxim Integrated is a high-speed, low-power dual voltage comparator with differential analog inputs and TTL-compatible outputs, 8ns typical propagation delay at 5mV overdrive, ±5V or +5V single-supply operation, and -40°C to +85°C operating temperature range. It serves in fast A/D converter front-ends, line receivers, and high-speed sampling circuits where precise timing and rail-to-rail input sensing are required.
For engineers reviewing the MAX901BESE+T datasheet, MAX901BESE+T pinout, MAX901BESE+T application, or MAX901BESE+T equivalent, this page delivers verified specifications, package mapping, real-world use scenarios, and validated alternative options for legacy design support and obsolescence mitigation.
Technical Context
The MAX901BESE+T implements two independent high-gain comparators with TTL-output stages optimized for four LS-TTL loads, no internal latch circuitry (unlike MAX900/MAX902/MAX903), and separate analog/digital supply domains (VCC/VEE for analog, VDD for digital). Its input common-mode range extends to the negative rail, enabling ground-referenced sensing under single-supply conditions.
It operates across ±5V split supplies or +5V to +10V analog supplies with VEE grounded, while VDD remains fixed at +5V. Propagation delay is guaranteed ≤15ns over full temperature range with 5mV overdrive and 15pF load, and power dissipation is 18mW per comparator at +5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typ (15ns max) at 5mV overdrive - enables sub-100MHz sampling decision timing. |
| Input Offset Voltage | 1–3mV (max 6mV over temp) - supports accurate threshold detection down to ~2mV resolution. |
| Supply Range | Analog: +5V to +10V (VEE = GND) or ±5V; Digital: VDD = +5V only - allows flexible mixed-signal partitioning. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V - includes negative rail for true ground-sensing in single-supply systems. |
| Output Drive | VOH ≥ 2.4V @ 1mA sink, VOL ≤ 0.4V @ 8mA source - directly interfaces standard TTL logic without level-shifting. |
| Power Dissipation | 18mW per comparator at +5V - enables dense placement in thermally constrained PCB layouts. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and extended-temperature embedded applications. |
Pinout & Package
MAX901BESE+T is supplied in a 16-pin narrow SO (SOIC-N) package with 1.27mm pitch, JEDEC MS-012AC compliant, body size 10.3mm × 5.3mm, and moisture sensitivity level (MSL) 1.
| 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 analog ground domain. |
| 2, 9 | IN+ (A, B) | Positive input terminals for Channel A and Channel B - accept signals up to VCC − 2.25V with rail-to-rail common-mode capability. |
| 3 | GND | Digital ground reference - connects to system DGND; must be tied to VEE if using split supplies. |
| 4, 11 | LATCH (A, B) | No-connect (NC) pins - not internally bonded; left unconnected per MAX901-specific pinout (latch function omitted). |
| 5, 12 | OUT (A, B) | TTL-compatible open-collector outputs with internal pull-up - drive LS-TTL loads directly; require external pull-up only if sourcing >1mA. |
| 6, 13 | N.C. | No internal connection - must remain floating; no routing or termination required. |
| 7 | VEE | Negative analog supply and substrate tie - set to GND for single-supply operation or −5V for split-rail configurations. |
| 10 | VDD | +5V digital supply - powers output stage and internal logic; must be decoupled locally with 100nF ceramic capacitor. |
| 14 | VCC | Positive analog supply - ranges +5V to +10V; requires dedicated 100nF decoupling to minimize noise coupling into comparator core. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns typical propagation delay | Enables reliable sampling of >100MHz analog edges when combined with proper layout and <15pF load. |
| Rail-inclusive input common-mode range | Supports direct interface to ground-referenced sensors or DAC outputs without level-shifting circuitry. |
| Separate analog/digital supplies | Reduces digital switching noise coupling into analog decision path - critical for SNR-sensitive measurement front-ends. |
| 18mW per comparator power consumption | Allows integration of multiple comparators on thermally constrained boards without forced-air cooling. |
| TTL-compatible outputs | Eliminates need for external buffer stages when driving FPGA I/O banks, microcontroller interrupts, or logic-state latches. |
Applications
| High-Speed A/D Converter Front-End | Line Receiver with Threshold Detection |
|---|---|
|
Use Scenario: Digitizing fast analog waveforms using flash or pipeline ADC architectures requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Dual comparator provides simultaneous upper/lower threshold comparison for windowed sampling or asynchronous edge capture. Use Value: 10ns propagation delay ensures timing alignment between sample clock and comparator decision, minimizing aperture jitter in multi-channel systems. |
Use Scenario: Recovering digital data from noisy transmission lines (e.g., RS-422, LVDS stubs) where signal integrity degrades near receiver thresholds. IC Role / Device Role / Timing Role: Acts as high-speed differential line receiver with programmable hysteresis via external feedback, rejecting common-mode noise above 50kHz. Use Value: Rail-to-rail input range allows direct interface to terminated lines referenced to system ground, eliminating bias networks and reducing component count. |
| PWM Signal Monitoring Circuit | Industrial Alarm Threshold Detector |
|
Use Scenario: Real-time validation of PWM duty cycle and frequency in motor control inverters or SMPS feedback loops. IC Role / Device Role / Timing Role: One channel detects rising edge (IN+ > IN−), second channel detects falling edge (IN− > IN+), generating precise pulse-width windows. Use Value: Matched propagation delays (<2ns skew between channels) ensure symmetric timing capture, improving duty-cycle measurement accuracy to ±0.5%. |
Use Scenario: Monitoring eight independent sensor outputs (e.g., temperature, pressure, current) against programmable alarm limits in PLC backplanes. IC Role / Device Role / Timing Role: Paired with octal DAC (e.g., MX7228), each MAX901BESE+T compares two adjacent channels to detect over/under-limit conditions. Use Value: −40°C to +85°C rating and 1–3mV offset stability enable reliable operation in uncontrolled industrial enclosures without calibration drift compensation. |
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 |
|---|---|---|---|
| MAX9202ESA+ | Pin-for-pin compatible, same 8ns propagation delay, but 9mW/comparator (half power), no latch inputs - matches MAX901 functionality exactly. | Designed for new designs requiring lower thermal load and longer product lifecycle; replaces MAX901 without layout change. | Select MAX9202ESA+ when upgrading legacy systems or initiating new designs where power efficiency and long-term availability are priorities. |
| LM319M/NOPB | Slower (80ns propagation), wider supply range (±15V), no separate digital/analog rails, higher quiescent current (5mA total), no rail-inclusive input range. | Suitable for general-purpose industrial comparators where speed is secondary to ruggedness and wide voltage tolerance. | Choose LM319M/NOPB only for cost-sensitive, non-critical timing applications where 80ns delay is acceptable and ±15V operation is required. |
Compared with MAX901BESE+T, MAX9202ESA+ offers identical speed and pinout with half the power and active production status, while LM319M/NOPB trades speed and rail-sensing capability for broader supply flexibility and legacy availability - making MAX9202ESA+ the preferred drop-in upgrade and LM319M/NOPB a fallback for non-timing-critical replacements.
Availability
MAX901BESE+T is available at Aetrix Electronics and suitable for industrial alarm systems, high-speed data acquisition modules, and legacy test equipment requiring stable component supply amid ongoing obsolescence management.
Supply support for MAX901BESE+T 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 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 discrimination tasks including A/D converter interfacing, V/F conversion, and line reception - prioritizing propagation delay, input flexibility, and TTL compatibility over latch functionality in the MAX901 variant.
FAQ
Is MAX901BESE+T still recommended for new designs?
No, MAX901BESE+T is Not Recommended for New Designs per Maxim's official documentation. The process technology used to manufacture the MAX900–MAX903 series is obsolete. For new projects, Maxim recommends the pin-compatible MAX9202ESA+, which delivers identical speed and functionality at half the power dissipation and with full production support. MAX901BESE+T remains available for legacy repair and continuity builds.
What is the function of pins 4 and 11 on MAX901BESE+T?
Pins 4 and 11 on MAX901BESE+T are labeled LATCH (A, B) in the MAX900/MAX902/MAX903 pinouts but are No-Connect (N.C.) terminals on the MAX901BESE+T. The MAX901 does not include internal latch circuitry, so these pins are not bonded and must remain unconnected. This is explicitly confirmed in the datasheet Note 3 and Pin Descriptions table for MAX901.
Can MAX901BESE+T operate from a single +5V supply?
Yes, MAX901BESE+T can operate from a single +5V supply: configure VCC = +5V, VEE = GND, and VDD = +5V. Its input common-mode range includes the negative rail (GND), enabling ground-referenced signal comparison. Output levels remain TTL-compatible (VOH ≥ 2.4V, VOL ≤ 0.4V), and power dissipation stays at 18mW per comparator - verified in Electrical Characteristics tables under "VCC = VDD = +5V, VEE = 0" conditions.
Does MAX901BESE+T support ±5V analog supplies?
Yes, MAX901BESE+T supports ±5V analog supplies: connect VCC to +5V, VEE to −5V, and VDD to +5V. The datasheet specifies analog supply voltage (VCC to VEE) up to +12V, and all key parameters - including propagation delay, input offset, and output drive - are characterized under ±5V conditions. Input common-mode range extends from −5.1V to +2.75V, fully covering the ±5V span.
What is the maximum load capacitance for stable operation of MAX901BESE+T?
MAX901BESE+T is characterized with CL = 15pF for propagation delay specifications, and response time vs. load capacitance plots (Figure MAX900-03 toc08) confirm stable operation up to 70pF with <2ns increase in tpd. For reliable high-speed performance, keep total node capacitance ≤15pF using short traces and minimal stubs; above 30pF, propagation delay increases nonlinearly and output ringing may occur without series termination.
MAX901BESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX901BESE+T FAQ
1.How can I place an order for MAX901BESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901BESE+T 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 MAX901BESE+T reliable?
The price and inventory of MAX901BESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901BESE+T is usually 5 days.
3.What payment methods are accepted for MAX901BESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901BESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901BESE+T?
MAX901BESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901BESE+T 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 MAX901BESE+T?
For technical support, including MAX901BESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901BESE+T requirements.
6.How does Aetrix verify that MAX901BESE+T is sourced from the original manufacturer or authorized distributors?
All MAX901BESE+T 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 MAX901BESE+T meets industry standards.
7.What is the process for return or replacement of MAX901BESE+T?
All MAX901BESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX901BESE+T, 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 MAX901BESE+T part is unused and in its original packaging.
Return procedure for MAX901BESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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