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Analog Devices Inc./Maxim Integrated MAX907CPA+
- Part No.:
- MAX907CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX907CPA+.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:244
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Product details
Overview
MAX907CPA+ from Maxim Integrated is a dual, high-speed, ultra-low-power, single-supply TTL comparator IC designed for precision threshold detection in battery-powered and timing-critical systems. It delivers 40ns propagation delay with 5mV input overdrive, consumes only 700µA per comparator (3.5mW), and operates from a single +5V supply (4.5V to 5.5V). Its inputs extend from −0.2V to V+−1.5V, enabling ground-referenced sensing in 0°C to +70°C industrial applications.
For engineers reviewing the MAX907CPA+ datasheet, MAX907CPA+ pinout, MAX907CPA+ application, or MAX907CPA+ equivalent, key selection criteria include its TTL-compatible outputs (no pull-ups required), built-in hysteresis for noise immunity, input/output short-circuit robustness, and DIP-8 package compatibility with legacy through-hole layouts.
Technical Context
The MAX907CPA+ integrates two independent comparators on a bipolar process, each featuring internal hysteresis (≈5mV input-referred) to eliminate oscillation during slow or noisy input transitions. Its input stage supports rail-to-rail common-mode operation down to −0.2V (below GND) and up to V+−1.5V, enabling direct interfacing with sensors and ADC reference levels without level-shifting.
Output stages are fully TTL-compatible with VOH ≥ 2.8V (ISOURCE = 100µA) and VOL ≤ 0.55V (ISINK = 3.2mA), ensuring reliable logic-level interfacing with 74LS/74F families. Propagation delay skew between channels is limited to 2ns, supporting matched timing in dual-channel sampling or differential threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns typical (5mV overdrive): enables sub-25MHz sampling decision cycles in A/D front-ends. |
| Supply Current | 700µA per comparator (3.5mW @ 5V): supports multi-year battery life in portable threshold detectors. |
| Input Offset Voltage | 1mV typical (3.5mV max): ensures <±5mV trip-point accuracy across temperature for precision discriminators. |
| Input Voltage Range | −0.2V to V+−1.5V: allows direct connection to grounded sensors or DAC outputs without clamping diodes. |
| Output Type | TTL-compatible push-pull: eliminates external pull-up resistors and reduces BOM count in digital interface designs. |
| Hysteresis | Internal, fixed ≈5mV: prevents chatter on slow-moving signals (e.g., thermistor outputs) without external feedback components. |
| Operating Temp | 0°C to +70°C: qualified for commercial-grade embedded control and instrumentation applications. |
Pinout & Package
MAX907CPA+ is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard through-hole footprint. Pin spacing is 0.1 inch, compatible with legacy PCB layouts and socket-based prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply input | Accepts 4.5V–5.5V single supply; decoupling capacitor must be placed within 5mm for stable high-speed operation. |
| 2 - INA− | Inverting input of comparator A | Differential input node; referenced to internal hysteresis center; supports common-mode down to −0.2V. |
| 3 - INA+ | Noninverting input of comparator A | Differential input node; identical electrical specs to INA−; used for threshold comparison against analog signal. |
| 4 - GND | Circuit ground reference | Return path for supply and signal currents; requires low-inductance ground plane for <40ns timing integrity. |
| 5 - INB+ | Noninverting input of comparator B | Independent second channel input; electrically isolated from comparator A; same voltage range and bias specs. |
| 6 - INB− | Inverting input of comparator B | Second channel inverting input; enables dual-threshold or window-detection configurations without external components. |
| 7 - OUTB | Output of comparator B | TTL-compatible active-pull output; sinks ≥3.2mA at VOL ≤ 0.55V; drives 74LS directly without series resistor. |
| 8 - OUTA | Output of comparator A | Matched-output channel with identical timing (tPD skew ≤2ns) and drive strength to OUTB for synchronized decisions. |
Key Features
| Feature | Design Value |
|---|---|
| 40ns propagation delay | Enables real-time response in high-speed sampling circuits (e.g., >20MSPS flash ADC triggers) without added latency. |
| Internal hysteresis | Eliminates need for external positive-feedback resistors, reducing layout complexity and component count in threshold detectors. |
| TTL-compatible outputs | Direct interface with standard logic families avoids level-shifters or pull-up networks, simplifying interconnect design. |
| Input/output short-circuit protection | Withstands continuous short to V+ or GND-critical for ruggedized industrial sensor interfaces exposed to wiring faults. |
| Wide input common-mode range | Supports direct sensing of signals referenced to ground or negative offsets (e.g., transducer bridges), avoiding level-shifting ICs. |
Applications
| Battery-Powered Threshold Detectors | High-Speed A/D Converter Front-Ends |
|---|---|
|
Use Scenario: Detecting low-voltage battery depletion (e.g., 3.0V cutoff) in handheld medical devices using a resistive divider. IC Role / Device Role / Timing Role: Dual comparator provides hysteresis-enabled undervoltage lockout (UVLO) and overvoltage warning with independent outputs. Use Value: 700µA total quiescent current extends coin-cell life beyond 5 years; −0.2V input capability allows precise 0V-referenced sensing. |
Use Scenario: Latching analog input voltage at precise clock edges in a 10-bit flash ADC sampling system. IC Role / Device Role / Timing Role: Comparator A compares input to reference; Comparator B validates clock edge timing to gate sample window. Use Value: 40ns delay and 2ns channel skew ensure <±1 LSB timing error at 25MSPS; TTL outputs drive ADC control logic directly. |
| Line Receivers for Industrial Serial Links | Zero-Crossing Detectors in AC Power Monitoring |
|
Use Scenario: Converting RS-422 differential signals to single-ended TTL levels in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: One comparator channel receives data; the other monitors enable/control lines with noise-immune hysteresis. Use Value: Input range spanning −0.2V to +3.5V accommodates degraded RS-422 common-mode swing; no external biasing needed. |
Use Scenario: Detecting AC line zero crossings for phase-controlled dimmers or energy metering in smart outlets. IC Role / Device Role / Timing Role: Comparator A senses rising zero crossing; Comparator B detects falling zero crossing for full-cycle timing. Use Value: Internal hysteresis rejects EMI-induced false triggers on 50/60Hz mains; 40ns delay ensures <0.1° phase error at 60Hz. |
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 |
|---|---|---|---|
| LM393DR | Slower (1.3µs propagation delay), higher supply current (1mA per comparator), no internal hysteresis, open-collector outputs require pull-ups. | Suitable for low-speed, cost-sensitive applications where timing precision and power are secondary. | Choose LM393DR only if <100kHz response suffices and board space allows pull-up resistors. |
| TLV3501CDR | Faster (4.5ns delay), rail-to-rail input, CMOS output (not TTL), higher supply current (5.5mA), requires external hysteresis network. | Better for high-frequency (>100MHz) analog comparators needing sub-5ns resolution but incompatible with legacy TTL loads. | Choose TLV3501CDR only when nanosecond timing dominates and logic interface can accept CMOS levels. |
Compared with MAX907CPA+, LM393DR trades speed and integration for cost and availability, while TLV3501CDR offers superior speed at the expense of power, interface compatibility, and design simplicity-making MAX907CPA+ optimal for legacy TTL systems requiring balanced speed, power, and ease of use.
Availability
MAX907CPA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-speed data acquisition front-ends, and industrial line receiver designs requiring stable component supply across extended production lifecycles.
Supply support for MAX907CPA+ 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX907CPA+ belongs to Maxim's precision comparator product line, engineered specifically for applications demanding ultra-low power, fast response, and robust single-supply operation in resource-constrained embedded systems.
FAQ
What is the operating temperature range for MAX907CPA+?
The MAX907CPA+ is specified for 0°C to +70°C operation, making it suitable for commercial-grade embedded systems, portable test equipment, and industrial control panels not exposed to extreme ambient conditions. This range is confirmed in the Ordering Information table and Electrical Characteristics section under "Operating Temperature Ranges" for the 'C' grade suffix.
Does MAX907CPA+ require external hysteresis components?
No, MAX907CPA+ incorporates fixed internal hysteresis (~5mV input-referred), eliminating the need for external feedback resistors. This is explicitly stated in the General Description and Features sections, and verified by the absence of hysteresis configuration pins and the inclusion of VTRIP+ and VTRIP− parameters in the Electrical Characteristics table.
Can MAX907CPA+ operate from a 3.3V supply?
No, MAX907CPA+ is not rated for 3.3V operation. Its Absolute Maximum Ratings specify +6V maximum on V+, but the Electrical Characteristics are guaranteed only for V+ = 4.5V to 5.5V. The datasheet confirms single-supply operation "designed for use in systems powered from a single +5V supply," and no performance data is provided below 4.5V.
Is MAX907CPA+ pin-compatible with other MAX907 variants like MAX907ESA?
Yes, MAX907CPA+ shares identical pinout and functionality with all MAX907 variants (e.g., MAX907ESA, MAX907EPA, MAX907MSA), differing only in package type (DIP vs. SO) and temperature grade. The Pin Configurations diagram explicitly labels "MAX907" for the 8-pin DIP/SO top view, and the Ordering Information table confirms identical pin assignments across all suffixes.
What is the maximum capacitive load MAX907CPA+ can drive reliably?
MAX907CPA+ maintains 40ns propagation delay with CL = 10pF, and Typical Operating Characteristics show stable operation up to 100pF (TOC03). However, delay increases to ~70ns at 100pF; for timing-critical applications, loading should be kept ≤20pF to preserve sub-50ns response. This is derived from Figure MAX907 TOC03 and the "CL = 10pF" condition in the tPD specification.
MAX907CPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- TTL
- Voltage - Supply, Single/Dual (±):
- 4.5V ~ 11V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 0.3µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1mA
- Current - Quiescent (Max):
- 86.02dB CMRR, 86.02dB PSRR
- CMRR, PSRR (Typ):
- 50ns
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
MAX907CPA+ FAQ
1.How can I place an order for MAX907CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX907CPA+ 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 MAX907CPA+ reliable?
The price and inventory of MAX907CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX907CPA+ is usually 5 days.
3.What payment methods are accepted for MAX907CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX907CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX907CPA+?
MAX907CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX907CPA+ 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 MAX907CPA+?
For technical support, including MAX907CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX907CPA+ requirements.
6.How does Aetrix verify that MAX907CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX907CPA+ 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 MAX907CPA+ meets industry standards.
7.What is the process for return or replacement of MAX907CPA+?
All MAX907CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX907CPA+, 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 MAX907CPA+ part is unused and in its original packaging.
Return procedure for MAX907CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX907CPA+ 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
NXP USA Inc.
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