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Analog Devices Inc./Maxim Integrated MAX907ESA
- Part No.:
- MAX907ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX907ESA.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,270
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Product details
Overview
MAX907ESA 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 only 700µA supply current per comparator (3.5mW), operates from +4.5V to +5.5V, features rail-to-rail input range down to 200mV below ground, and provides TTL-compatible outputs without external pullups. It is used in high-speed A/D converters and zero-crossing detectors.
For engineers reviewing the MAX907ESA datasheet, MAX907ESA pinout, MAX907ESA application, or MAX907ESA equivalent, key selection considerations include its 40ns speed at micropower consumption, built-in hysteresis for noise immunity, dual-channel configuration in SO-8 package, and compatibility with single +5V systems requiring robust input common-mode range and short-circuit protected I/O.
Technical Context
The MAX907ESA implements two independent high-gain bipolar comparators with internal fixed hysteresis (~5mV input-referred), eliminating need for external feedback resistors. Its input stage accepts voltages from –0.2V to V+–1.5V, enabling direct interfacing with signals near ground or slightly negative-critical for sensor front-ends and line receivers.
Each comparator features TTL-compatible push-pull outputs (no pull-up required), full short-circuit protection on all pins, and guaranteed operation across –40°C to +85°C. Propagation delay skew between channels is ≤2ns, supporting matched timing in dual-path signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns typical (5mV overdrive); enables sampling of >10MHz signals in threshold-detection circuits. |
| Supply Current per Comparator | 700µA at V+ = 5V (3.5mW); supports multi-year battery life in portable instrumentation. |
| Input Common-Mode Range | –0.2V to V+–1.5V; allows direct connection to transducer outputs referenced near ground without level-shifting. |
| Input Offset Voltage | 1mV typical (3.5mV max); ensures accurate trip-point stability in precision discriminators. |
| Output Type | TTL-compatible push-pull; drives standard logic loads directly-no external components needed. |
| Hysteresis | Internal, fixed ~5mV (input-referred); prevents chatter on slow-moving or noisy inputs without design overhead. |
| Short-Circuit Protection | Continuous short to V+ or GND on all pins; enhances reliability in industrial interface applications. |
Pinout & Package
MAX907ESA is housed in an 8-pin SO (Small Outline) package, surface-mount compatible, with 1.27mm pitch and JEDEC MS-012AC footprint. Thermal performance supports continuous operation at up to +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive Supply Input | Accepts +4.5V to +5.5V; must be decoupled locally with 0.1µF ceramic capacitor. |
| 2 - INA− | Comparator A Inverting Input | Differential input node for first comparator; supports common-mode down to –0.2V. |
| 3 - INA+ | Comparator A Noninverting Input | Differential input node for first comparator; matches INA− in voltage range and bias behavior. |
| 4 - GND | Circuit Ground Reference | Return path for supply and signals; requires low-inductance ground plane for high-speed stability. |
| 5 - INB+ | Comparator B Noninverting Input | Second comparator's noninverting input; electrically identical to INA+. |
| 6 - INB− | Comparator B Inverting Input | Second comparator's inverting input; matches INB+ in offset and CMR performance. |
| 7 - OUTB | Comparator B Output | TTL-compatible push-pull output; sinks 8mA or sources 100µA while maintaining VOH/VOL specs. |
| 8 - OUTA | Comparator A Output | TTL-compatible push-pull output; fully interchangeable with OUTB in layout and loading. |
Key Features
| Feature | Design Value |
|---|---|
| 40ns propagation delay at 5mV overdrive | Enables real-time detection in high-speed sampling circuits without added latency compensation. |
| Internal 5mV input-referred hysteresis | Eliminates external resistor networks and layout sensitivity-reduces BOM count and validation effort. |
| Rail-to-rail input range (–0.2V to V+–1.5V) | Permits direct interface with sensors, DACs, and op-amp outputs operating near supply rails. |
| TTL-compatible push-pull outputs | Drives standard 74LS/74HC logic directly-no pull-up resistors, no level translators, no timing uncertainty. |
| Continuous short-circuit protection on all pins | Withstands accidental shorts during prototyping or field operation-improves system-level robustness. |
Applications
| Battery-Powered Threshold Detector | High-Speed A/D Converter Front-End |
|---|---|
Use Scenario: Detecting low-amplitude analog signals (e.g., photodiode output, thermistor voltage) in portable medical or IoT sensors powered by coin cells. IC Role / Device Role / Timing Role: Dual comparator providing precise, hysteresis-stabilized decision points for two independent signal paths. Use Value: 700µA per channel enables multi-year operation; 40ns response captures fast transients; rail-to-rail input avoids signal clipping. |
Use Scenario: Converting analog waveforms into digital logic levels for flash or pipeline ADC architectures requiring sub-50ns decision windows. IC Role / Device Role / Timing Role: High-speed comparator generating clean, jitter-minimized clocked decisions synchronized to sampling clocks. Use Value: 2ns max propagation skew between channels ensures matched timing across parallel ADC slices; TTL outputs interface directly with latch inputs. |
| Zero-Crossing Detector for AC Line Monitoring | Line Receiver in Industrial Data Links |
Use Scenario: Accurately identifying AC mains zero-crossing points for phase-controlled dimmers, energy meters, or grid-synchronization circuits. IC Role / Device Role / Timing Role: Precision comparator detecting polarity reversal of transformer-coupled or resistively scaled line voltage. Use Value: –0.2V input lower limit accommodates small negative excursions; internal hysteresis rejects EMI-induced false triggers near zero. |
Use Scenario: Receiving differential or single-ended digital data over long cables in factory automation or building control networks. IC Role / Device Role / Timing Role: Robust signal discriminator converting attenuated/noisy line signals into clean TTL logic for UART or SPI interfaces. Use Value: Wide input common-mode range tolerates ground offsets up to 1.5V; short-circuit protection survives cable faults and ESD events. |
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/comparator), no internal hysteresis, open-collector outputs require pull-ups. | Suitable for cost-sensitive, low-speed threshold detection where timing and power are not critical. | Select LM393DR only when 40ns speed and micropower are unnecessary-and external hysteresis/pull-ups can be accommodated. |
| TLV3501CDR | Faster (4.5ns), rail-to-rail input, but higher quiescent current (5.2mA), no internal hysteresis, requires external feedback network. | Better for ultra-high-speed (>100MHz) window comparators or analog-to-digital front-ends needing sub-5ns resolution. | Choose TLV3501CDR when speed dominates power budget, and board space allows hysteresis resistors and decoupling optimization. |
Compared with LM393DR and TLV3501CDR, the MAX907ESA uniquely balances 40ns speed, 700µA power, built-in hysteresis, and TTL outputs-making it optimal for battery-powered, noise-prone, timing-constrained dual-comparator roles where simplicity and reliability are prioritized over raw speed or lowest cost.
Availability
MAX907ESA is available at Aetrix Electronics and suitable for battery-powered systems, high-speed A/D converter front-ends, and zero-crossing detectors requiring stable component supply across industrial temperature ranges.
Supply support for MAX907ESA 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX907ESA belongs to Maxim's legacy high-speed comparator product line, engineered specifically for single-supply, low-power, noise-immune threshold detection in portable and timing-critical systems.
FAQ
What is the operating temperature range for the MAX907ESA?
The MAX907ESA is rated for operation from –40°C to +85°C. This extended industrial temperature range ensures reliable performance in outdoor equipment, automotive body electronics, and industrial controllers where ambient conditions vary widely. The SO-8 package maintains electrical specifications across this full range without derating.
Does the MAX907ESA require external hysteresis resistors?
No, the MAX907ESA includes fixed internal hysteresis (~5mV input-referred), eliminating the need for external feedback networks. This simplifies PCB layout, reduces component count, and guarantees consistent switching behavior-especially valuable in low-noise sensor interfaces and battery-operated devices where design margin is constrained.
Can the MAX907ESA operate from a 3.3V supply?
No-the MAX907ESA is specified only for +4.5V to +5.5V single-supply operation. At 3.3V, output drive strength, propagation delay, and input common-mode range degrade outside datasheet limits. For 3.3V systems, consider alternatives like the MAX9021 or TLV3701, which are explicitly characterized at lower voltages.
Is the MAX907ESA pin-compatible with other devices in the MAX907/MAX908/MAX909 family?
Yes-the MAX907ESA shares identical pinout and package (8-pin SO) with the MAX907EPA, MAX907CPA, and MAX907CSA. However, it is not pin-compatible with the MAX908 (quad, 14-pin) or MAX909 (single with latch/complementary outputs, 8-pin but different pin functions). Always verify pin assignments using the MAX907-specific top-view diagram.
What is the maximum capacitive load the MAX907ESA outputs can drive?
The MAX907ESA outputs are characterized with CL = 10pF for timing specs, but can reliably drive up to 50pF with minimal degradation in rise/fall time (<15ns). For loads >50pF, add a series resistor (10–33Ω) near the output to dampen ringing-especially critical in high-frequency sampling circuits where signal integrity affects conversion accuracy.
MAX907ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Surface Mount
- :
- 8-SOIC
MAX907ESA FAQ
1.How can I place an order for MAX907ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX907ESA 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 MAX907ESA reliable?
The price and inventory of MAX907ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX907ESA is usually 5 days.
3.What payment methods are accepted for MAX907ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX907ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX907ESA?
MAX907ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX907ESA 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 MAX907ESA?
For technical support, including MAX907ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX907ESA requirements.
6.How does Aetrix verify that MAX907ESA is sourced from the original manufacturer or authorized distributors?
All MAX907ESA 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 MAX907ESA meets industry standards.
7.What is the process for return or replacement of MAX907ESA?
All MAX907ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX907ESA, 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 MAX907ESA part is unused and in its original packaging.
Return procedure for MAX907ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX907ESA 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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