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Analog Devices Inc./Maxim Integrated MAX901ACPE+
- Part No.:
- MAX901ACPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX901ACPE+.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,154
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Product details
Overview
MAX901ACPE+ from Maxim Integrated is a high-speed, low-power dual voltage comparator IC with differential analog inputs and TTL-compatible 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 converter front-ends and line receiver circuits.
For engineers reviewing the MAX901ACPE+ datasheet, MAX901ACPE+ pinout, MAX901ACPE+ application, or MAX901ACPE+ equivalent, key selection considerations include its dual-channel architecture, absence of latch inputs (distinguishing it from MAX900/MAX902/MAX903), 18mW per comparator power consumption at +5V, and compatibility with mixed-signal timing-critical systems requiring fast threshold detection without latching functionality.
Technical Context
The MAX901ACPE+ implements two independent high-gain, wide-bandwidth comparators optimized for sub-10ns response under small-signal overdrive. Its analog input stage supports rail-to-rail common-mode operation down to VEE (–5V) and up to VCC – 2.25V, enabling ground-sensing in single-supply configurations.
It features separate analog (VCC/VEE) and digital (VDD) supply domains, with TTL-output stages capable of driving four low-power Schottky TTL loads. Unlike the MAX900/MAX902/MAX903 family members, the MAX901ACPE+ omits latch inputs entirely - simplifying control logic but removing output hold capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 8ns typ at 5mV overdrive - enables sampling of >100MHz signals in A/D interfaces. |
| Input Offset Voltage | 0.5–2.0mV (typ) - ensures accurate threshold discrimination within 2mV tolerance. |
| Power Dissipation | 18mW per comparator at +5V - supports thermally constrained PCB layouts. |
| Supply Range | Analog: +5V to +10V (VEE = GND) or ±5V; Digital: +5V only - allows flexible mixed-signal biasing. |
| Input Common-Mode Range | VEE – 0.1V to VCC – 2.25V - permits direct ground-referenced sensing in single-supply mode. |
| Output Drive | TTL-compatible: VOH ≥ 2.4V @ 1mA, VOL ≤ 0.4V @ 8mA - interoperable with standard logic families. |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade embedded instrumentation and data acquisition. |
Pinout & Package
MAX901ACPE+ is housed in a 16-pin plastic DIP package (0.300" width) with through-hole mounting and industry-standard lead spacing. Pin 1 is marked by a notch or dot; pin numbering follows standard DIP convention (counter-clockwise from top-left).
| 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 − 0.1V. |
| 2, 9 | IN+ (A, B) | Positive input terminals for comparator channels A and B - referenced against IN− to determine output polarity. |
| 3 | GND | Digital ground reference - shared return path for VDD and TTL output stages. |
| 4, 11 | LATCH (A, B) | No connection - pins are internally unconnected; must be left floating or tied to GND per layout best practice. |
| 5, 12 | OUT (A, B) | TTL-compatible open-collector outputs with internal pull-ups - drive logic-high when inactive, sink current when active low. |
| 6, 13 | N.C. | No internal connection - electrically isolated; no routing or termination required. |
| 7 | VEE | Negative analog supply and substrate terminal - must be connected to –5V or GND depending on configuration. |
| 10 | VDD | +5V digital supply - powers TTL output stages and internal logic; not tolerant of voltages outside +4.75V to +5.25V. |
| 14 | VCC | Positive analog supply - accepts +5V to +10V; sets upper limit of input common-mode range and analog gain stability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | Enables simultaneous threshold evaluation of two analog signals without cross-talk or shared timing constraints. |
| No latch inputs | Eliminates latch-control signal routing and timing setup/hold requirements - reduces system complexity vs. MAX900/MAX902/MAX903. |
| Rail-inclusive input range | Supports direct interface to ground-referenced sensors or DAC outputs without level-shifting circuitry. |
| Separate analog/digital supplies | Minimizes digital noise coupling into analog inputs via dedicated VCC/VEE and VDD/GND paths. |
| Low-power TTL outputs | Drives standard logic loads while consuming <18mW per channel - suitable for battery-backed or thermally limited designs. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
|
Use Scenario: Front-end signal conditioning before flash or pipeline ADC sampling. IC Role / Device Role / Timing Role: Fast threshold comparator generating precise clock-aligned decision pulses for ADC input staging. Use Value: 8ns propagation delay ensures minimal aperture jitter contribution (<1ps RMS) in sampling circuits operating at >100MSPS. |
Use Scenario: Differential signal recovery in RS-422/RS-485 receivers or legacy telecom line interfaces. IC Role / Device Role / Timing Role: High-speed differential comparator converting twisted-pair voltage swings into clean TTL logic levels. Use Value: Input common-mode range including VEE allows direct interface to –5V referenced line drivers without external bias networks. |
| Threshold Detectors | PWM Circuits |
|
Use Scenario: Real-time overvoltage/undervoltage monitoring in DC power rails or sensor signal chains. IC Role / Device Role / Timing Role: Dual-channel comparator detecting crossing of upper/lower thresholds on a monitored analog signal. Use Value: 0.5–2.0mV input offset ensures detection accuracy better than ±2mV - critical for precision fault detection. |
Use Scenario: Triangle-wave vs. control-voltage comparison in analog PWM generators for motor control or LED dimming. IC Role / Device Role / Timing Role: High-speed comparator generating duty-cycle-modulated square wave from analog modulation input. Use Value: Stable 8ns delay across temperature (±2ns variation from –40°C to +85°C) maintains consistent PWM edge placement. |
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); includes latch inputs. | Requires latch signal management; suited for systems needing output hold capability during bus arbitration or sampling windows. | Select MAX9202ESA+ if latch functionality is needed and lower power is prioritized; verify latch timing constraints match system clock domain. |
| LM319N | Slower (80ns propagation delay), higher power (30mW), no separate analog/digital supplies, wider temp range (–55°C to +125°C). | Better suited for industrial environments with extreme temperature exposure but unsuitable for >10MHz signal discrimination. | Choose LM319N only for cost-sensitive, non-high-speed applications where thermal robustness outweighs speed requirements. |
Compared with MAX901ACPE+, MAX9202ESA+ offers identical speed with half the power and added latch control - ideal for modern low-power designs requiring hold functionality - while LM319N trades speed and supply flexibility for extended temperature operation and legacy compatibility.
Availability
MAX901ACPE+ is available at Aetrix Electronics and suitable for high-speed data sampling, line receiver circuits, and precision threshold detection requiring stable component supply across commercial temperature ranges.
Supply support for MAX901ACPE+ 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 sub-10ns comparator response, low power, and flexible supply configurations - targeting A/D converters, V/F converters, and real-time signal discrimination.
FAQ
What is the maximum operating frequency supported by the MAX901ACPE+?
The MAX901ACPE+ does not specify a maximum operating frequency directly, but its 8ns typical propagation delay at 5mV overdrive supports reliable operation with input signal transitions up to ~125MHz (based on 1/(2 × tpd)). It has been validated in 100MHz sine-wave response tests (Figure 7), confirming suitability for high-speed sampling and line-receiver applications where clean edge detection is critical. The MAX901ACPE+ performance remains stable across its full 0°C to +70°C operating range.
Does the MAX901ACPE+ support single-supply operation?
Yes, the MAX901ACPE+ supports true single-supply operation with VEE tied to GND and VCC set between +5V and +10V. Its input common-mode range extends to VEE − 0.1V, allowing ground-referenced inputs, and its TTL outputs function correctly with VDD = +5V. This configuration is explicitly validated in Figure 1A and Figure 1B of the datasheet, making the MAX901ACPE+ suitable for battery-powered or simplified power-system designs without negative rails.
Why are pins 4 and 11 labeled LATCH on the MAX901ACPE+ pinout diagram but marked N.C. in the functional description?
Pins 4 and 11 on the MAX901ACPE+ are physically present due to shared die/package design with the latch-equipped MAX900/MAX902/MAX903, but they are not connected internally - confirmed in the "Pin Descriptions" table (page 7) which states "No Connection. Not internally connected." The MAX901ACPE+ intentionally omits latch functionality; therefore, these pins must remain unconnected or tied to GND per layout guidelines to avoid parasitic coupling. This distinction is explicitly noted in datasheet "Note 3": "Specification does not apply to MAX901."
Can the MAX901ACPE+ be used with ±12V analog supplies?
No, the MAX901ACPE+ cannot be used with ±12V analog supplies. Its absolute maximum analog supply rating is VCC to VEE ≤ +12V (per Absolute Maximum Ratings table), and the recommended operating range is ±5V or +5V to +10V with VEE = GND. Exceeding +10V on VCC or –5V on VEE risks permanent damage. For ±12V systems, a level-shifting interface or alternative comparator such as the MAX961 (±15V rated) would be required - the MAX901ACPE+ is strictly limited to ±5V or +5V/+10V configurations.
Is the MAX901ACPE+ still recommended for new designs?
No, the MAX901ACPE+ is Not Recommended for New Designs, as stated in the datasheet's opening notice. It was manufactured using an obsolete wafer process no longer available at Maxim. While fully functional and supported for existing users, Maxim recommends migration to the pin-compatible MAX9202ESA+ for new designs - offering identical speed, half the power dissipation (9mW/comparator), and retained latch capability. Aetrix Electronics maintains legacy supply for ongoing production but advises design-in of MAX9202ESA+ for long-term viability.
MAX901ACPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- :
- 16-PDIP
MAX901ACPE+ FAQ
1.How can I place an order for MAX901ACPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX901ACPE+ 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 MAX901ACPE+ reliable?
The price and inventory of MAX901ACPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX901ACPE+ is usually 5 days.
3.What payment methods are accepted for MAX901ACPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX901ACPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX901ACPE+?
MAX901ACPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX901ACPE+ 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 MAX901ACPE+?
For technical support, including MAX901ACPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX901ACPE+ requirements.
6.How does Aetrix verify that MAX901ACPE+ is sourced from the original manufacturer or authorized distributors?
All MAX901ACPE+ 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 MAX901ACPE+ meets industry standards.
7.What is the process for return or replacement of MAX901ACPE+?
All MAX901ACPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX901ACPE+, 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 MAX901ACPE+ part is unused and in its original packaging.
Return procedure for MAX901ACPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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