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Analog Devices Inc./Maxim Integrated MAX901BESE+
- Part No.:
- MAX901BESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX901BESE+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,090
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Product details
Overview
MAX901BESE+ 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 - used in high-speed A/D converters, line receivers, and PWM circuits.
For engineers reviewing the MAX901BESE+ datasheet, MAX901BESE+ pinout, MAX901BESE+ application, or MAX901BESE+ equivalent, this page delivers verified electrical specs, package mapping, latch-free dual-comparator architecture, thermal performance across –40°C to +85°C, and real-world timing behavior under 15pF load and 2mA drive conditions.
Technical Context
The MAX901BESE+ implements two independent high-gain, wide-bandwidth comparators with separate analog (VCC/VEE) and digital (VDD) supply domains, enabling noise-isolated mixed-signal operation. Its input stage accepts common-mode voltages down to VEE − 0.1V, supporting ground-sensing in single-supply configurations.
No internal latches are present - unlike MAX900/MAX902/MAX903 - eliminating latch-control timing constraints and simplifying interface logic. Output stages are TTL-compatible with VOH ≥ 2.4V (ISRC = 1mA) and VOL ≤ 0.4V (ISINK = 8mA), ensuring reliable fan-out to LS-TTL loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typ (tpd+, tpd−) at 5mV overdrive, CL = 15pF - enables sampling >100MHz signals in A/D front-ends. |
| Supply Range | Analog: ±5V or +5V to +10V (VEE grounded); Digital: +5V only - supports split-rail precision sensing or compact single-supply systems. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V - allows direct ground-referenced input detection without level-shifting. |
| Power Dissipation | 18mW per comparator at +5V - balances speed and thermal budget for dense PCB layouts. |
| Input Offset Voltage | 1mV min / 3mV max (full temp range) - ensures <±10mV threshold error in 12-bit-equivalent monitoring applications. |
| Output Drive | VOH ≥ 2.4V @ 1mA sink; VOL ≤ 0.4V @ 8mA source - meets TTL-LS logic thresholds with margin for trace impedance. |
Pinout & Package
MAX901BESE+ is housed in a 16-pin narrow SO (SOIC-N) package, 3.9mm width, 1.27mm pitch, JEDEC MS-012AC compliant, rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN− (A, B) | Negative input terminals for comparator channels A and B - differential pair inputs referenced to VEE. |
| 2, 9 | IN+ (A, B) | Positive input terminals for comparator channels A and B - accept full common-mode range including VEE. |
| 3 | GND | Digital ground reference - connects to system DGND; isolated from analog substrate (VEE). |
| 4, 11 | LATCH (A, B) | No-connect (N.C.) - MAX901 lacks internal latches; pins are unconnected and must be left floating or tied to GND/VDD per layout rules. |
| 5, 12 | OUT (A, B) | TTL-compatible open-collector–like outputs with internal pull-up - drive directly into LS-TTL or microcontroller inputs. |
| 6, 13 | N.C. | No internal connection - electrically isolated; no routing or termination required. |
| 7 | VEE | Negative analog supply and substrate tie - must be connected to lowest analog potential (e.g., –5V or GND in single-supply mode). |
| 10 | VDD | +5V digital supply - powers output stage and internal logic; requires local 100nF ceramic decoupling. |
| 14 | VCC | Positive analog supply - ranges +5V to +10V; supplies input stage and sets upper common-mode limit. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns propagation delay | Enables accurate time-of-flight measurement and sub-10ns window discrimination in high-speed data acquisition. |
| Dual independent comparators | Allows simultaneous threshold checking on two analog signals without cross-talk or shared timing paths. |
| No internal latch circuitry | Eliminates setup/hold timing constraints and latch-disable delays - simplifies control logic and reduces latency jitter. |
| Input range includes negative rail | Supports true ground-referenced sensing in single-supply systems without external biasing networks. |
| Separate analog/digital supplies | Prevents digital switching noise from modulating analog input offset or propagation delay via supply coupling. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
|
Use Scenario: Front-end sampling of fast analog waveforms prior to flash or pipeline ADC conversion. IC Role / Device Role / Timing Role: Dual comparator provides precise zero-crossing or threshold-triggered sample enable with <10ns timing uncertainty. Use Value: 8ns propagation delay and 1ns inter-channel skew ensure synchronized sampling across two signal paths. |
Use Scenario: Recovery of high-frequency digital signals from noisy transmission lines (e.g., RS-422, LVDS pre-amplified). IC Role / Device Role / Timing Role: Converts attenuated/dispersed differential line signals into clean TTL-level logic with minimal added jitter. Use Value: Input common-mode range down to VEE − 0.1V allows direct interfacing to biased line receivers without AC coupling. |
| PWM Circuits | Threshold Detectors |
|
Use Scenario: Real-time comparison of triangle/sawtooth carrier wave against control voltage to generate variable-duty-cycle PWM. IC Role / Device Role / Timing Role: Dual comparator operates in parallel - one for rising-edge, one for falling-edge PWM edge generation. Use Value: Matched tpd+ and tpd− (≤2ns difference) ensures symmetrical duty cycle control up to 50MHz carrier frequency. |
Use Scenario: Monitoring multiple sensor outputs (e.g., temperature, voltage rails) against programmable alarm thresholds. IC Role / Device Role / Timing Role: Provides two independent over/under-voltage detection channels with TTL-compatible outputs for MCU interrupt signaling. Use Value: 1mV–3mV input offset ensures <±5mV absolute threshold accuracy over –40°C to +85°C without calibration. |
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 delay, but 9mW/comparator (50% lower power); includes latch inputs. | Latch capability adds control flexibility but introduces ts/th timing constraints absent in MAX901BESE+. | Select MAX9202ESA+ when latch functionality is needed and layout supports additional timing margins. |
| LM393DR | Slower (300ns delay), higher offset (2mV typ), no separate analog/digital supplies - single +5V only. | Suitable for DC or low-frequency (<100kHz) threshold detection; not viable for >10MHz sampling or noise-sensitive analog domains. | Choose LM393DR only for cost-sensitive, non-high-speed applications where propagation delay and supply isolation are irrelevant. |
Compared with MAX901BESE+, MAX9202ESA+ offers identical speed with half the power and added latch control - ideal for new designs requiring upgrade path - while LM393DR trades speed and precision for cost and simplicity in static monitoring roles.
Availability
MAX901BESE+ is available at Aetrix Electronics and suitable for high-speed data acquisition, industrial line receiver interfaces, and PWM generator subsystems requiring stable component supply across extended temperature ranges.
Supply support for MAX901BESE+ 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) designs precision analog, mixed-signal, and high-speed interface ICs for demanding industrial, communications, and computing applications.
The MAX900–MAX903 family was engineered for high-speed data discrimination in mixed-signal systems - emphasizing low propagation delay, supply-domain isolation, and rail-to-rail input capability.
FAQ
What is the operating temperature range for MAX901BESE+?
The MAX901BESE+ is specified for operation from –40°C to +85°C. This extended industrial temperature grade ensures reliable performance in harsh environments such as motor drives, outdoor instrumentation, and automotive body-control modules where ambient thermal stress exceeds commercial-grade limits. All key parameters - including propagation delay, input offset voltage, and supply current - are guaranteed across this full range.
Does MAX901BESE+ include internal latch circuitry?
No, MAX901BESE+ does not include internal latch inputs - unlike MAX900, MAX902, or MAX903. Pins 4 and 11 are labeled LATCH (A, B) in the pinout but are No Connect (N.C.) internally. This eliminates latch-related timing constraints (setup/hold, disable delay) and simplifies interface design, making MAX901BESE+ ideal for transparent, low-latency comparator applications.
Can MAX901BESE+ operate from a single +5V supply?
Yes, MAX901BESE+ supports single +5V operation: connect VCC = +5V, VEE = GND, and VDD = +5V. The input common-mode range extends to VEE − 0.1V (i.e., –0.1V), enabling true ground-referenced input sensing. Output logic levels remain fully TTL-compatible, and power dissipation stays at 18mW per comparator - verified across the full –40°C to +85°C range.
What is the maximum load capacitance supported by MAX901BESE+ outputs?
MAX901BESE+ maintains its 8ns typical propagation delay with load capacitance up to 15pF, as tested in the datasheet. At 30pF, delay increases to ~12ns; beyond 50pF, ringing and degraded edge fidelity occur. For reliable high-speed operation, keep trace capacitance + destination input capacitance ≤15pF and use point-to-point routing with series termination if driving longer traces.
Is MAX901BESE+ recommended for new designs?
No - MAX901BESE+ is Not Recommended for New Designs (NRND), as stated in the official Maxim datasheet. The fabrication process is obsolete, and long-term supply continuity cannot be assured. For new projects, consider the pin-compatible MAX9202ESA+ (same speed, half power, added latch) or evaluate ADI's current-generation high-speed comparators with active lifecycle support.
MAX901BESE+ 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:
- 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+ FAQ
1.How can I place an order for MAX901BESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901BESE+ 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+ reliable?
The price and inventory of MAX901BESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901BESE+ is usually 5 days.
3.What payment methods are accepted for MAX901BESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901BESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901BESE+?
MAX901BESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901BESE+ 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+?
For technical support, including MAX901BESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901BESE+ requirements.
6.How does Aetrix verify that MAX901BESE+ is sourced from the original manufacturer or authorized distributors?
All MAX901BESE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX901BESE+?
All MAX901BESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX901BESE+, 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+ part is unused and in its original packaging.
Return procedure for MAX901BESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX901BESE+ 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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