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Analog Devices Inc./Maxim Integrated MAX901ACSE+
- Part No.:
- MAX901ACSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX901ACSE+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:114
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Product details
Overview
MAX901ACSE+ from Maxim Integrated is a high-speed, low-power dual voltage comparator IC with differential analog inputs and TTL-compatible outputs. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, supports ±5V or single +5V analog supply, and operates across 0°C to +70°C - ideal for high-speed A/D converter front-ends and line receiver circuits.
For engineers reviewing the MAX901ACSE+ datasheet, MAX901ACSE+ pinout, MAX901ACSE+ application, or MAX901ACSE+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, and two confirmed alternative comparators suitable for timing-critical sampling and threshold-detection systems.
Technical Context
The MAX901ACSE+ implements two independent high-gain, wide-bandwidth comparators with rail-to-rail input common-mode range extending to the negative supply (VEE), enabling ground-sensing operation in single-supply configurations. Its TTL output stage drives up to four low-power Schottky TTL loads without external pull-ups.
Unlike the latch-equipped MAX900/MAX902/MAX903, the MAX901ACSE+ omits latch inputs entirely - simplifying control logic but requiring external latching if state-hold functionality is needed. It accepts separate analog (VCC/VEE) and digital (VDD) supplies, with VDD fixed at +5V while analog supplies support +5V to +10V (VEE = GND) or ±5V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical at 5mV overdrive - enables clean sampling of >100MHz signals with minimal timing uncertainty. |
| Input Offset Voltage | 0.5–2.0mV (typ) - ensures accurate threshold detection down to sub-millivolt levels in precision discriminators. |
| Supply Range (Analog) | +5V to +10V (VEE = GND) or ±5V - supports flexible biasing in mixed-signal systems without level-shifting. |
| Output Type | TTL-compatible with active internal pull-up - eliminates need for external pull-up resistors on outputs. |
| Power Dissipation | 18mW per comparator at +5V - balances speed and thermal load in dense PCB layouts. |
| Input Common-Mode Range | Includes VEE (negative rail) - allows direct sensing of signals referenced to ground in single-supply designs. |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade instrumentation and data acquisition systems. |
Pinout & Package
MAX901ACSE+ is housed in a 16-pin narrow SO (Small Outline) package with gull-wing leads, JEDEC MS-012AC compliant, 7.5mm body width, 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN− (A, B) | Negative input terminals for comparator channels A and B - differential pair inputs accepting signals down to VEE. |
| 2, 9 | IN+ (A, B) | Positive input terminals for comparator channels A and B - used with IN− to detect voltage crossing relative to reference. |
| 3 | GND | Digital ground reference - connects to system DGND; must be decoupled near VDD pin. |
| 4, 11 | LATCH (A, B) | No connection - MAX901ACSE+ has no latch function; pins are unconnected internally (N.C.). |
| 5, 12 | OUT (A, B) | TTL-compatible open-collector outputs with internal pull-up - drive logic loads directly without external components. |
| 6, 13 | N.C. | No connection - not bonded or connected internally; leave floating or grounded per layout best practice. |
| 7 | VEE | Negative analog supply and substrate terminal - must be tied to −5V or GND depending on configuration. |
| 10 | VDD | +5V digital supply - powers TTL output stages; requires dedicated 100nF ceramic decoupling capacitor. |
| 14 | VCC | Positive analog supply - accepts +5V to +10V; decouple separately from VDD to prevent digital noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns propagation delay | Enables reliable sampling of fast edges in A/D converters and pulse-width modulators without added latency. |
| Rail-inclusive input range | Allows direct interface to ground-referenced sensors or DAC outputs without level-shifting circuitry. |
| TTL outputs with internal pull-ups | Reduces BOM count and board area by eliminating four external 1kΩ–4.7kΩ pull-up resistors. |
| Separate analog/digital supplies | Minimizes digital switching noise injection into analog signal paths via independent VCC/VDD/VEE routing. |
| 18mW per comparator power | Supports thermally constrained designs such as multi-channel data loggers or portable test equipment. |
Applications
| High-Speed A/D Converter Front-End | Line Receiver for Digital Communications |
|---|---|
|
Use Scenario: Comparing sampled analog input against reference thresholds prior to digitization in flash or pipeline ADC architectures. IC Role / Device Role / Timing Role: Dual comparator providing synchronized decision points for parallel bit slicing with sub-10ns timing resolution. Use Value: 8ns propagation delay ensures <1 LSB timing error at 100MSPS sampling rates, preserving effective resolution. |
Use Scenario: Recovering digital logic levels from attenuated or noisy transmission lines (e.g., RS-422, LVDS stubs, backplane traces). IC Role / Device Role / Timing Role: Threshold detector converting small-swing differential signals into clean TTL logic for downstream FPGA or microcontroller input. Use Value: Input common-mode range including VEE allows direct interfacing to −1V to +4V line voltages without AC coupling or bias networks. |
| Threshold Detector in Alarm Systems | PWM Timing Reference Generator |
|
Use Scenario: Monitoring multiple sensor outputs (e.g., temperature, voltage, current) against programmable limits in industrial controllers. IC Role / Device Role / Timing Role: Dual comparator comparing sensor-derived analog voltages against DAC-set references to trigger fault flags. Use Value: 0.5mV typical input offset ensures alarm activation within ±1mV of setpoint - critical for safety-critical overvoltage detection. |
Use Scenario: Generating precise zero-crossing or duty-cycle reference points for motor control or LED dimming PWM generators. IC Role / Device Role / Timing Role: High-speed comparator detecting when ramp or triangle waveform crosses reference voltage to define PWM edge timing. Use Value: 8ns delay stability over temperature ensures <±0.5% duty cycle error across 0°C to +70°C operating 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 |
|---|---|---|---|
| MAX9201ASA+ | Pin-for-pin compatible, same 8ns delay, but 9mW/comparator (50% lower power); includes latch inputs. | Requires latch control logic; better suited for systems needing synchronous sampling hold. | Select MAX9201ASA+ when lower power and latch capability are required; verify latch timing constraints match system clock. |
| LM319M/NOPB | Slower (80ns delay), higher power (30mW), no latch, wider supply range (±15V), no internal pull-ups. | Suitable for general-purpose, non-timing-critical threshold detection where speed is secondary. | Choose LM319M/NOPB only for cost-sensitive, low-frequency applications where 8ns timing is unnecessary. |
Compared with MAX901ACSE+, MAX9201ASA+ offers identical speed with half the power and added latch control - ideal for modern low-power sampling systems - while LM319M/NOPB trades speed and integration for broader supply flexibility and legacy compatibility at significantly higher latency.
Availability
MAX901ACSE+ is available at Aetrix Electronics and suitable for high-speed data acquisition, industrial alarm monitoring, and communication line receiver designs requiring stable component supply and long-term obsolescence management.
Supply support for MAX901ACSE+ 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 solutions.
The MAX900–MAX903 family was designed for high-fidelity, low-latency signal discrimination in data conversion and digital communications infrastructure - prioritizing speed, input flexibility, and TTL interoperability.
FAQ
What is the maximum operating frequency supported by the MAX901ACSE+?
The MAX901ACSE+ does not specify a maximum operating frequency directly, but its 8ns typical propagation delay supports clean response to input transitions with rise/fall times ≤10ns - enabling reliable use in systems sampling up to ~100MHz sine waves or generating timing edges for 100MSPS A/D converters. Performance depends on layout, overdrive, and load capacitance.
Does the MAX901ACSE+ include internal latch functionality?
No, the MAX901ACSE+ does not include latch inputs. Unlike the MAX900/MAX902/MAX903, it omits latch circuitry entirely - pins 4 and 11 are N.C. (no connection). Latching must be implemented externally using D-type flip-flops or microcontroller GPIO capture if state-hold functionality is required.
Can the MAX901ACSE+ operate from a single +5V supply?
Yes, the MAX901ACSE+ supports single +5V operation: tie VEE to GND, apply +5V to VCC and VDD, and reference inputs accordingly. The input common-mode range includes GND, allowing ground-sensing - making it suitable for single-supply sensor interfaces without level-shifting circuitry.
What is the purpose of the N.C. pins (6 and 13) on the MAX901ACSE+?
Pins 6 and 13 on the MAX901ACSE+ are designated N.C. (No Connection) - they are not bonded to the die and have no internal connection. They may be left floating or tied to GND for mechanical stability or EMI reduction, but must never be driven or used as signal paths.
How does the MAX901ACSE+ handle input common-mode voltage near the negative rail?
The MAX901ACSE+ guarantees operation with input common-mode voltage down to VEE − 0.1V (per datasheet Note 1), and its inputs are fully functional when VEE = GND. This rail-inclusive range enables direct interfacing with ground-referenced sources like op-amp outputs or DACs without clamping diodes or bias networks.
MAX901ACSE+ 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
- :
- 2mV @ ±5V
- Voltage - Input Offset (Max):
- 6µA @ ±5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 15mA, 12mA, 6mA
- Current - Quiescent (Max):
- 86.02dB CMRR, 86.02dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-SOIC
MAX901ACSE+ FAQ
1.How can I place an order for MAX901ACSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901ACSE+ 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 MAX901ACSE+ reliable?
The price and inventory of MAX901ACSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901ACSE+ is usually 5 days.
3.What payment methods are accepted for MAX901ACSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901ACSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901ACSE+?
MAX901ACSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901ACSE+ 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 MAX901ACSE+?
For technical support, including MAX901ACSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901ACSE+ requirements.
6.How does Aetrix verify that MAX901ACSE+ is sourced from the original manufacturer or authorized distributors?
All MAX901ACSE+ 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 MAX901ACSE+ meets industry standards.
7.What is the process for return or replacement of MAX901ACSE+?
All MAX901ACSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX901ACSE+, 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 MAX901ACSE+ part is unused and in its original packaging.
Return procedure for MAX901ACSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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