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Analog Devices Inc./Maxim Integrated MAX907EPA+
- Part No.:
- MAX907EPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX907EPA+.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,313
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Product details
Overview
MAX907EPA+ 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 (5mV overdrive), 700µA supply current per comparator (3.5mW), and operates from +4.5V to +5.5V. Its input common-mode range extends from −0.2V to V+−1.5V, and outputs are TTL-compatible without external pullups - used in high-speed A/D converters and zero-crossing detectors.
For engineers reviewing the MAX907EPA+ datasheet, MAX907EPA+ pinout, MAX907EPA+ application, or MAX907EPA+ equivalent, key selection criteria include propagation delay vs. overdrive, input offset voltage (1–3.5mV), hysteresis-enabled clean switching, and SO-8/DIP-8 package compatibility with legacy 5V logic interfaces.
Technical Context
The MAX907EPA+ implements a bipolar comparator architecture with built-in 5mV input-referred hysteresis, eliminating need for external feedback resistors. Its differential pair input stage enables rail-to-rail input operation down to −0.2V (GND−200mV) and up to V+−1.5V, supporting robust sensing near supply rails.
Each comparator features TTL-compatible push-pull outputs (no pullup required), short-circuit protection on all pins, and guaranteed operation across 0°C to +70°C ambient. Propagation delay skew between channels is ≤2ns, and differential propagation delay is ≤1ns - critical for matched-channel timing in sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 40ns typical (5mV input overdrive); enables sub-25MHz sampling decision timing |
| Supply current per comparator | 700µA at V+ = 5V; supports multi-comparator designs in <1mA total system budget |
| Input offset voltage | 1–3.5mV max (−40°C to +85°C); ensures accurate trip-point stability in precision discriminators |
| Input common-mode range | −0.2V to V+−1.5V; allows direct interface to sensors operating below GND or near V+ |
| Output type | TTL-compatible push-pull; eliminates external pullup resistors and reduces BOM count |
| Hysteresis | Internal 5mV input-referred; prevents chatter on slow-moving or noisy inputs without external components |
| Operating supply | +4.5V to +5.5V single supply only; not rated for ±5V (unlike MAX909) |
Pinout & Package
MAX907EPA+ is housed in an 8-pin plastic DIP package (0.300" wide), pin-compatible with industry-standard 8-pin DIP footprints. The device uses a standard dual comparator pinout optimized for minimal trace length and noise immunity in high-speed layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Comparator A output | TTL-compatible push-pull output; sinks 8mA / sources 100µA; no pullup needed |
| 2 (INA−) | Comparator A inverting input | Differential input node; accepts signals from −0.2V to V+−1.5V |
| 3 (INA+) | Comparator A noninverting input | Differential input node; same voltage range as INA− |
| 4 (GND) | Analog/digital ground reference | Common return for supply and signal paths; requires low-inductance PCB ground plane |
| 5 (INB+) | Comparator B noninverting input | Independent second channel input; electrically identical to INA+ |
| 6 (INB−) | Comparator B inverting input | Independent second channel input; electrically identical to INA− |
| 7 (OUTB) | Comparator B output | Matched-output performance to OUTA; ≤2ns skew between channels |
| 8 (V+) | Positive supply input | Accepts +4.5V to +5.5V; requires local 0.1µF ceramic decoupling capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 3.5mW per comparator at 5V enables >10-year battery life in portable threshold detectors |
| Built-in hysteresis | 5mV input-referred hysteresis eliminates external resistor networks and layout sensitivity |
| Rail-aligned input range | Operates with inputs 200mV below GND and 1.5V below V+, simplifying sensor interfacing |
| TTL output drive | Direct connection to 74LS/74F logic families without level-shifting or pullup resistors |
| Short-circuit robustness | All I/O pins withstand continuous short to V+ or GND - critical for test-mode and fault-tolerant designs |
Applications
| Battery-Powered Threshold Detection | High-Speed Sampling Circuits |
|---|---|
Use Scenario: Monitoring battery voltage against low-charge cutoff and full-charge termination thresholds in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator provides independent high/low trip points with internal hysteresis to prevent oscillation during gradual voltage decay. Use Value: 700µA per comparator enables dual-threshold monitoring within 1.5mA total supply budget, extending runtime by >30% vs. legacy comparators. | Use Scenario: Clocking edge detection in flash ADC front-ends where analog input must be sampled precisely at zero-crossing events. IC Role / Device Role / Timing Role: Fast 40ns comparator captures zero-crossing transitions with minimal jitter, feeding latch or FPGA sampling logic. Use Value: ≤2ns channel-to-channel skew ensures matched timing between differential sampling paths, preserving signal integrity in 10+ MSPS systems. |
| Line Receivers for Industrial Bus | High-Speed V/F Converters |
Use Scenario: Converting RS-422/RS-485 differential bus signals to single-ended TTL levels in factory automation controllers. IC Role / Device Role / Timing Role: Dual comparator acts as differential line receiver with rail-aligned inputs accepting −0.2V to 3.5V common-mode swing. Use Value: Input range covering full RS-422 common-mode (−7V to +12V via external resistive divider) enables robust noise rejection without clamping diodes. | Use Scenario: Generating precise frequency outputs proportional to analog sensor signals (e.g., pressure, temperature) in closed-loop control systems. IC Role / Device Role / Timing Role: Comparator forms core of relaxation oscillator; hysteresis sets frequency-determining thresholds. Use Value: Stable 1–3.5mV offset voltage ensures <0.1% gain error across temperature, improving V/F linearity vs. untrimmed alternatives. |
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 (300ns typ), higher supply current (1.2mA), no internal hysteresis, open-collector outputs requiring pullups | Suitable for cost-sensitive, non-timing-critical DC thresholding only | Select only when propagation delay >100ns and board space permits external hysteresis resistors |
| TLV3501CDR | Faster (4.5ns), rail-to-rail input, CMOS output (3.3V logic), but 2.7–5.5V supply and higher quiescent current (5.3mA) | Better for mixed-voltage 3.3V/5V systems needing nanosecond response | Choose when system uses 3.3V logic and requires <5ns delay; avoid if strict 5V TTL compatibility or <1mA budget is mandatory |
Compared with LM393DR and TLV3501CDR, the MAX907EPA+ uniquely balances TTL compatibility, 40ns speed, and 700µA ultra-low power in a legacy-pinout DIP package - making it irreplaceable in retrofit 5V industrial designs where layout change is prohibited.
Availability
MAX907EPA+ is available at Aetrix Electronics and suitable for battery-powered systems, high-speed A/D converters, and threshold discriminators requiring stable component supply and long-term obsolescence management.
Supply support for MAX907EPA+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX907EPA+ belongs to Maxim's legacy high-speed comparator product line, engineered specifically for 5V single-supply systems demanding microamp-level power, TTL interoperability, and hysteresis-integrated precision - targeting instrumentation, data acquisition, and portable electronics.
FAQ
What is the maximum operating temperature range for the MAX907EPA+?
The MAX907EPA+ is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is confirmed in the Ordering Information table, where "CPA" suffix denotes the 0°C to +70°C grade. The "EPA" variant (e.g., MAX907EPA+) is not specified - only MAX907CPA and MAX907EPA (without "+") appear in official ordering tables. Therefore, MAX907EPA+ shares the 0°C to +70°C rating of MAX907CPA per Maxim's packaging nomenclature and thermal derating curves.
Does the MAX907EPA+ support dual ±5V supplies?
No, the MAX907EPA+ supports single +4.5V to +5.5V supply only. Dual ±5V operation is exclusive to the MAX909 family, as explicitly stated in the General Description: "the MAX909 also accepts dual ±5V supplies." The MAX907EPA+ Absolute Maximum Ratings list only positive supply voltage (V+ to GND), with no negative supply (V−) specification - confirming its single-supply-only design.
Is the MAX907EPA+ pin-compatible with the MAX907CPA?
Yes, the MAX907EPA+ is mechanically and electrically pin-compatible with the MAX907CPA. Both are 8-pin plastic DIP packages with identical pin functions (OUTA, INA−, INA+, GND, INB+, INB−, OUTB, V+), as shown in the Pin Configurations diagram. Temperature grade differs (CPA = 0°C to +70°C; EPA = −40°C to +85°C), but pinout, electrical behavior, and footprint are identical - enabling drop-in replacement in existing layouts.
What is the input hysteresis value of the MAX907EPA+?
The MAX907EPA+ features internal input-referred hysteresis of approximately 5mV, derived from the difference between VTRIP+ (2–5mV) and VTRIP− (−2 to −5mV) in the Electrical Characteristics table. This fixed hysteresis eliminates external components and ensures clean output transitions even with slow-moving or noisy inputs - a core feature highlighted in the General Description and Detailed Description sections.
Can the MAX907EPA+ outputs drive standard TTL logic directly?
Yes, the MAX907EPA+ outputs are fully TTL-compatible and can drive standard TTL logic directly without external pullup resistors. As stated in the General Description: "outputs are TTL-compatible, requiring no external pullup circuitry." VOH ≥ 2.8V (ISOURCE = 100µA) and VOL ≤ 0.55V (ISINK = 3.2mA) meet 74LS TTL voltage thresholds, and the push-pull output stage provides sufficient sink/source current for fanout-10 loads.
MAX907EPA+ 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:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 8-PDIP
MAX907EPA+ FAQ
1.How can I place an order for MAX907EPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX907EPA+ 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 MAX907EPA+ reliable?
The price and inventory of MAX907EPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX907EPA+ is usually 5 days.
3.What payment methods are accepted for MAX907EPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX907EPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX907EPA+?
MAX907EPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX907EPA+ 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 MAX907EPA+?
For technical support, including MAX907EPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX907EPA+ requirements.
6.How does Aetrix verify that MAX907EPA+ is sourced from the original manufacturer or authorized distributors?
All MAX907EPA+ 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 MAX907EPA+ meets industry standards.
7.What is the process for return or replacement of MAX907EPA+?
All MAX907EPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX907EPA+, 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 MAX907EPA+ part is unused and in its original packaging.
Return procedure for MAX907EPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX907EPA+ Tags
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