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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:1,882
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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. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, and supports single-supply operation with input common-mode range extending to the negative rail. It is used in high-speed A/D converters, line receivers, and PWM circuits.
For engineers reviewing the MAX901BESE-T datasheet, MAX901BESE-T pinout, MAX901BESE-T application, or MAX901BESE-T equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, and two confirmed alternative comparators suitable for timing-critical signal discrimination tasks.
Technical Context
The MAX901BESE-T implements two independent high-gain, wide-bandwidth comparators with TTL-output stages optimized for fan-out of four low-power Schottky TTL loads. Its analog supply (VCC/VEE) operates from ±5V or +5V to +10V with VEE grounded, while digital supply (VDD) requires +5V only.
No internal latch circuitry is present - unlike MAX900/MAX902/MAX903 - eliminating latch-input timing constraints (ts, th, tpw(D)) and simplifying control logic in transparent-comparator applications such as sampling circuits and threshold detectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical at 5mV overdrive - enables sub-125MHz sampling decision cycles in A/D front-ends. |
| Power Dissipation | 18mW per comparator at +5V - allows dual-channel operation within 36mW total, critical for thermally constrained PCBs. |
| Input Common-Mode Range | Extends to VEE (negative rail) - supports ground-referenced sensing in single-supply systems without level-shifting. |
| Output Logic Type | TTL-compatible with VOH ≥2.4V @ 1mA, VOL ≤0.4V @ 8mA - directly drives standard LS-TTL and 74HC inputs without buffers. |
| Analog Supply Range | +5V to +10V (VCC) with VEE = 0V, or ±5V - accommodates both industrial single-rail and precision split-rail signal conditioning. |
| Operating Temperature | -40°C to +85°C - qualified for extended industrial environments including motor control and power conversion. |
Pinout & Package
MAX901BESE-T is supplied in a 16-pin narrow SO (SOIC-N) package with 1.27mm pitch, JEDEC MS-012AC compliant, body width 3.9mm, and moisture sensitivity level MSL-1.
| 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 signals up to VCC − 2.25V. |
| 3 | GND | Digital ground reference - must be tied to system DGND; separate from analog substrate (VEE). |
| 4, 11 | LATCH (A, B) | No connection - MAX901 has no latch function; pins are unconnected internally and must be left floating or tied to GND/VDD per layout best practice. |
| 5, 12 | OUT (A, B) | TTL-compatible open-collector outputs with internal pull-up - drive logic-high when inactive, sink up to 8mA when active low. |
| 6, 13 | N.C. | No internal connection - electrically isolated; must not be soldered or routed to avoid parasitic coupling. |
| 7 | VEE | Analog negative supply and substrate terminal - connects to system analog ground or −5V; defines lower bound of input common-mode range. |
| 10 | VDD | Digital positive supply - fixed +5V required; powers output stage and internal logic; decouple with 100nF ceramic near pin. |
| 14 | VCC | Analog positive supply - adjustable +5V to +10V; sets upper input voltage limit and output swing headroom. |
Key Features
| Feature | Design Value |
|---|---|
| High-speed response | 8ns propagation delay ensures accurate timing capture in >100MHz clock domains and fast data acquisition systems. |
| Single-supply ground-sensing | Input common-mode range includes VEE (0V) - eliminates need for external bias networks when monitoring 0–5V sensor outputs. |
| Low power per channel | 18mW at +5V enables dual-channel comparison in space-constrained, battery-sensitive, or thermally limited designs. |
| TTL-output compatibility | VOH ≥2.4V / VOL ≤0.4V meets LS-TTL thresholds - interfaces directly with FPGA I/O banks, microcontroller GPIO, and legacy logic without level shifters. |
| Split-supply flexibility | Supports ±5V analog operation - preserves dynamic range for bipolar signal conditioning in instrumentation and audio front-ends. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
Use Scenario: Front-end comparator bank in flash or pipeline ADC architectures requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Voltage discriminator that resolves analog input against reference ladder outputs with minimal propagation skew between channels. Use Value: 8ns typical tpd ensures <125MHz effective sampling rate; dual-channel independence avoids inter-channel crosstalk in multi-bit encoding. | Use Scenario: RS-422/RS-485 receiver stage converting differential bus signals into clean TTL logic levels. IC Role / Device Role / Timing Role: High-speed differential receiver with rail-to-rail input capability and TTL-level output drive strength. Use Value: Input range including VEE (0V) allows direct interface to terminated lines; 8ns delay minimizes jitter accumulation in high-data-rate serial links. |
| PWM Circuits | Threshold Detectors |
Use Scenario: Real-time duty-cycle comparator in digital power supply controllers comparing ramp waveform to error voltage. IC Role / Device Role / Timing Role: Fast, low-latency comparator generating precise edge-aligned PWM pulses with minimal dead-time uncertainty. Use Value: 18mW/channel power budget supports integration alongside gate drivers on same thermal plane; TTL outputs interface directly with logic-based dead-time generators. | Use Scenario: Overvoltage/undervoltage protection in DC-DC converters or battery management systems. IC Role / Device Role / Timing Role: Precision threshold detector with stable offset (<3mV max) and rail-sensing capability for accurate fault flag generation. Use Value: Input offset voltage ≤3mV ensures <0.1% trip-point error at 3V references; −40°C to +85°C rating guarantees reliability across automotive under-hood conditions. |
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 tpd, but 9mW/channel (50% lower power); includes latch inputs (not used in MAX901BESE-T designs). | Latch functionality adds control complexity but enables synchronized sampling; unused latch pins require proper termination. | Select MAX9202ESA+ when power reduction is critical and latch control can be leveraged or safely disabled. |
| LM393DR | Slower (300ns tpd), higher offset (7mV), no latch, wider supply range (2–36V), no VDD/VCC/VEE separation. | Suitable for non-timing-critical DC threshold detection, not for >1MHz sampling or high-precision analog discrimination. | Choose LM393DR only for cost-sensitive, low-speed applications where 8ns performance is unnecessary and supply simplicity outweighs speed. |
Compared with MAX901BESE-T, MAX9202ESA+ offers identical speed with half the power and added latch capability - ideal for next-gen upgrades - while LM393DR trades speed and precision for broad supply tolerance and lower cost in static detection roles.
Availability
MAX901BESE-T is available at Aetrix Electronics and suitable for high-speed A/D converters, line receivers, and PWM circuits requiring stable component supply across industrial temperature ranges.
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 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 signal discrimination in data acquisition, communication, and real-time control systems where propagation delay, power, and input flexibility are critical.
FAQ
What is the maximum operating frequency supported by the MAX901BESE-T?
The MAX901BESE-T does not have a specified "operating frequency" as it is a comparator, not a clocked device. However, its 8ns typical propagation delay enables reliable use in systems with signal transitions up to ~125MHz (1/8ns). Real-world bandwidth depends on overdrive, load capacitance, and PCB layout - measured response to 100MHz sine waves confirms usability in RF-adjacent sampling paths. The MAX901BESE-T datasheet specifies timing under defined test conditions (5mV overdrive, 15pF load), not a hard frequency ceiling.
Does the MAX901BESE-T include internal latch functionality?
No, the MAX901BESE-T does not include internal latch functionality. Unlike the MAX900, MAX902, and MAX903, the MAX901 variant explicitly omits latch inputs - pins 4 and 11 are No Connect (N.C.) and must remain unconnected or tied to a fixed potential per layout guidelines. This simplifies timing-critical applications like A/D converter front-ends where transparent, immediate response to input changes is required without latch-enable sequencing.
Can the MAX901BESE-T operate from a single +3.3V supply?
No, the MAX901BESE-T cannot operate reliably from a single +3.3V supply. Its digital supply (VDD) requires +5V ±5%, and its analog supplies (VCC/VEE) are specified for +5V to +10V (VCC) with VEE = 0V, or ±5V. At 3.3V, TTL output levels (VOH ≥2.4V) and internal biasing fall outside guaranteed specifications. For 3.3V systems, consider alternatives like the MAX961 or TLV3501, which are characterized for 2.7–5.5V operation and CMOS/LVTTL outputs.
What is the input offset voltage specification for the MAX901BESE-T over temperature?
The MAX901BESE-T has a maximum input offset voltage of 3mV over its full operating temperature range of −40°C to +85°C. At +25°C, the typical value is 2.0mV with a maximum of 4.0mV (for grade B). The datasheet confirms VOS ≤3mV across temperature - critical for precision threshold detection where drift-induced false triggers must be avoided. Graphical data (Figure 1 in datasheet) shows VOS variation remains within ±1.5mV of room-temperature value over the full range.
Is the MAX901BESE-T RoHS compliant and lead-free?
Yes, the MAX901BESE-T is RoHS compliant and lead-free. The "-T" suffix in the part number denotes tape-and-reel packaging and confirms compliance with EU RoHS Directive 2011/65/EU and JEDEC JS-001. The narrow SO package uses matte tin (Sn) lead finish, and all homogeneous materials meet the 0.1% (1000 ppm) lead concentration limit. Full compliance documentation is available via Analog Devices' product change notices (PCNs) for the MAX901 family.
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:
- 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:
- -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.
MAX901BESE-T Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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