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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:2,211
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Product details
Overview
MAX901ACSE 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 MAX901ACSE datasheet, MAX901ACSE pinout, MAX901ACSE application, or MAX901ACSE equivalent, key selection criteria include propagation delay consistency across temperature, latch-free TTL output behavior, dual-channel independence, and compatibility with mixed-signal PCB layouts requiring separate analog/digital supply decoupling.
Technical Context
The MAX901ACSE implements two independent high-gain, wide-bandwidth comparator cores optimized for sub-10ns response with 5mV input overdrive into 15pF load. Its analog input stage accepts common-mode voltages from VEE − 0.1V to VCC − 2.25V, enabling true ground-referenced sensing when VEE = GND. No internal latch circuitry is present-unlike MAX900/MAX902/MAX903-making its output fully transparent and asynchronous.
It supports flexible power architecture: analog supplies (VCC/VEE) operate from ±5V or +5V to +10V with VEE grounded, while digital supply (VDD) is fixed at +5V. Output stages drive standard LS-TTL loads with VOH ≥ 2.4V at 1mA source and VOL ≤ 0.4V at 8mA sink, meeting TTL logic threshold requirements without external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typical (5mV overdrive, CL = 15pF) - enables sampling of >100MHz signals with deterministic timing |
| Input Offset Voltage | 2.0mV max (TA = +25°C), 3.0mV max (full temp range) - ensures accurate threshold detection within ±1.5mV window |
| Supply Range (Analog) | +5V to +10V or ±5V - supports both single-supply ground-sensing and split-rail precision applications |
| Power Dissipation | 105mW max per device (+5V supplies) - allows dual-channel operation in thermally constrained SO-16 packages |
| Input Common-Mode Range | VEE − 0.1V to VCC − 2.25V - permits direct interface to 0V-referenced sensors without level-shifting |
| Output Drive Capability | VOH ≥ 2.4V @ 1mA, VOL ≤ 0.4V @ 8mA - directly interfaces to LS-TTL logic with fan-out of four |
Pinout & Package
MAX901ACSE is housed in a 16-pin narrow SOIC (SO-16N) package with 1.27mm pitch, JEDEC MS-012AC compliant, suitable for automated SMT assembly and moderate-density PCBs.
| 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 VEE |
| 2, 9 | IN+ (A, B) | Positive input terminals for Channel A and Channel B - accept signals up to VCC − 2.25V |
| 3 | GND | Digital ground reference - must be tied to system DGND; not internally connected to analog substrate |
| 4, 11 | LATCH (A, B) | No connection - MAX901 has no latch function; pins are unconnected 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 active pull-up - drive LS-TTL loads directly |
| 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 −5V or GND depending on supply configuration |
| 10 | VDD | +5V digital supply - powers output stage logic; must be decoupled locally with 100nF ceramic capacitor |
| 14 | VCC | Positive analog supply - ranges +5V to +10V; requires dedicated 100nF decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| 8ns propagation delay | Enables real-time discrimination of fast edges in A/D sampling clocks and high-frequency pulse trains |
| Ground-sensing input range | Allows direct comparison of 0V–5V sensor outputs without external biasing or level shifters |
| Separate analog/digital supplies | Reduces digital noise coupling into analog comparators via independent VCC/VEE and VDD paths |
| TTL-compatible outputs | Eliminates need for external pull-up resistors or logic buffers when interfacing to legacy TTL systems |
| +5V to +10V analog supply flexibility | Supports higher-voltage industrial signal chains while maintaining low-power operation at +5V |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
Use Scenario: Sampling clock generation and input signal windowing in flash or pipeline ADC front-ends operating at >50MSPS. IC Role / Device Role / Timing Role: Dual comparator provides precise, low-jitter decision points for track/hold control and input range validation. Use Value: 8ns propagation delay minimizes aperture uncertainty; ground-sensing input accommodates single-ended sensor outputs directly. |
Use Scenario: Differential-to-single-ended conversion and signal integrity monitoring in RS-422/RS-485 receiver stages. IC Role / Device Role / Timing Role: Threshold detector comparing received differential voltage against programmable reference levels. Use Value: Input common-mode range including VEE allows robust operation with noisy ground returns; TTL outputs interface directly to FPGA I/O banks. |
| PWM Circuits | Threshold Detectors |
Use Scenario: Real-time duty-cycle correction and overcurrent fault detection in motor control inverters. IC Role / Device Role / Timing Role: Fast comparator compares sensed current/voltage against ramp or reference to generate edge-aligned PWM shutdown signals. Use Value: Sub-10ns response ensures <100ns fault reaction time; dual channels support simultaneous high-side/low-side monitoring. |
Use Scenario: Precision voltage window detection in battery management systems and power supply supervision. IC Role / Device Role / Timing Role: Dual comparator implements upper/lower thresholds for undervoltage/overvoltage lockout (UVLO/OVLO). Use Value: 2mV max offset ensures ±1.5mV threshold accuracy; independent channels eliminate need for external op-amp buffers. |
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 |
|---|---|---|---|
| MAX9202ASA+ | Pin-for-pin compatible, same SO-16 package, 8ns propagation delay, but 9mW/comparator (half power vs. MAX901ACSE) | Designed for new designs; includes latch disable control and improved PSRR (250µV/V vs. 150µV/V) | Select for lower power, extended temp range (−40°C to +85°C), and production continuity - replaces MAX901ACSE in new designs. |
| LM393DR | Open-collector output, 1.3µs propagation delay, rail-to-rail input, no latch, SO-8 package - significantly slower and less precise | Suitable only for low-speed threshold detection (<100kHz); lacks ground-sensing precision and TTL drive strength | Use only for cost-sensitive, non-critical applications where speed and offset are not design constraints. |
Compared with MAX901ACSE, MAX9202ASA+ offers identical speed with half the power and broader temperature support, making it the recommended upgrade; LM393DR trades speed and precision for cost and availability but cannot replace MAX901ACSE in high-speed signal-path roles.
Availability
MAX901ACSE is available at Aetrix Electronics and suitable for high-speed A/D converters, line receivers, and PWM circuits requiring stable component supply during legacy system maintenance and repair cycles.
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 ICs for industrial, communications, and computing applications.
The MAX900–MAX903 family was designed for high-speed data acquisition systems requiring nanosecond-level decision latency, low power, and flexible supply configurations - targeting legacy test equipment, instrumentation, and military/aerospace subsystems.
FAQ
What is the maximum operating temperature range for the MAX901ACSE?
The MAX901ACSE is rated for operation from 0°C to +70°C. This commercial-grade temperature range is specified in the ordering information table and confirmed in the Absolute Maximum Ratings section of the datasheet. It is distinct from the extended-range MAX901AESE (−40°C to +85°C) variant. Thermal derating begins above +100°C, but the MAX901ACSE is not characterized or guaranteed beyond +70°C.
Does the MAX901ACSE include internal latch functionality?
No, the MAX901ACSE does not include internal latch functionality. The datasheet explicitly states "The MAX901 provides the same performance as the MAX900/MAX902/MAX903 with the exception of the latches" and notes "Specification does not apply to MAX901" in timing tables. Pins 4 and 11 are labeled LATCH (A, B) in the pinout but are No Connection (N.C.) - they are unconnected internally and must be left floating or tied off per layout guidelines.
Can the MAX901ACSE operate from a single +5V supply?
Yes, the MAX901ACSE can operate from a single +5V supply by connecting VEE to GND, VCC to +5V, and VDD to +5V. The datasheet confirms this configuration in Figure 1B and specifies that the analog input common-mode range includes the negative rail (GND), enabling ground-referenced signal comparison. Power dissipation remains within limits: total ICC + IEE + IDD ≈ 25mA at +5V, yielding ~125mW worst-case.
What is the input offset voltage specification for the MAX901ACSE at full temperature range?
The MAX901ACSE has a maximum input offset voltage of 3.0mV over its full operating temperature range of 0°C to +70°C. This value is specified in the "ELECTRICAL CHARACTERISTICS (continued)" table under "Input Offset Voltage (VOS)" for MAX900A/MAX901A grade parts at full temperature. Typical offset is 2.0mV at +25°C, with drift tracked in the "INPUT OFFSET VOLTAGE vs. TEMPERATURE" plot showing <±0.5mV variation across the range.
Is the MAX901ACSE pin-compatible with other devices in the MAX900–MAX903 family?
No, the MAX901ACSE is not pin-compatible with MAX900, MAX902, or MAX903. While all share the SO-16 package footprint, pin functions differ significantly: MAX901ACSE uses pins 4 and 11 as N.C., whereas MAX900/MAX902 assign them as active LATCH inputs. MAX903 uses an 8-pin SO package. Direct substitution would cause functional failure due to mismatched latch control and output enable behavior.
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:
- Obsolete
- 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.
MAX901ACSE Tags
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