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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:664
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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 5mV input overdrive, consumes only 700µA per comparator (3.5mW), and operates from a single +5V supply (4.5V to 5.5V). Its inputs span –0.2V to V+–1.5V, enabling ground-referenced sensing in portable instrumentation.
For engineers reviewing the MAX907ESA+ datasheet, MAX907ESA+ pinout, MAX907ESA+ application, or MAX907ESA+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation value, and two confirmed alternative comparators for system-level selection.
Technical Context
The MAX907ESA+ integrates two independent comparators with internal hysteresis (5mV typical input-referred width), eliminating external feedback resistors. Each channel features TTL-compatible push-pull outputs-no pull-up required-and full short-circuit protection on all pins to either rail.
Its bipolar process enables stable operation across –40°C to +85°C with <2.0mV max input offset voltage and <500nA input bias current. The device supports fast edge detection in A/D front-ends and zero-crossing circuits due to matched propagation delay skew (<2ns) and low 500µV typical offset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns typ. at 5mV overdrive - enables sampling at >10MHz in high-speed data acquisition |
| Supply Current per Comparator | 700µA typ. (3.5mW @ 5V) - extends battery life in portable sensors and IR receivers |
| Input Voltage Range | –0.2V to V+–1.5V - allows direct ground-referenced input without level-shifting circuitry |
| Input Offset Voltage | 1.0mV typ., 3.5mV max - ensures accurate trip-point stability in precision threshold detectors |
| Output Type | TTL-compatible push-pull - drives standard logic loads directly, no external pull-up needed |
| Hysteresis | Internal, fixed (~5mV input-referred) - prevents chatter on slow-moving signals without external components |
| Common-Mode Rejection | 75µV/V min - maintains accuracy despite supply noise or ground bounce in mixed-signal PCBs |
Pinout & Package
MAX907ESA+ is housed in an 8-pin SO (Small Outline) package, surface-mount, with 1.27mm pitch and JEDEC MS-012AC footprint. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts 4.5V–5.5V single supply; powers both comparators and output stages |
| OUTB | Comparator B output | TTL-compatible push-pull output; sinks 8mA / sources 100µA; no pull-up required |
| INB– | Comparator B inverting input | Differential input node; supports common-mode range down to –0.2V |
| INB+ | Comparator B noninverting input | Differential input node; matches INB– in offset, bias, and CMRR performance |
| GND | Ground reference | Return path for supply and signal; must connect to low-impedance ground plane |
| INA+ | Comparator A noninverting input | Independent differential input; electrically identical to INB+ for matched channel behavior |
| INA– | Comparator A inverting input | Independent differential input; fully interchangeable with INB– in layout and routing |
| OUTA | Comparator A output | Identical TTL output drive to OUTB; enables dual-channel decision logic without buffering |
Key Features
| Feature | Design Value |
|---|---|
| 40ns propagation delay | Enables reliable 10MHz+ sampling in high-speed V/F converters and line receivers |
| Internal hysteresis | Eliminates need for external resistor networks and associated layout sensitivity |
| TTL-compatible outputs | Direct interface to 74LS/74HC logic families without level translation or pull-up resistors |
| Input/output short-circuit protection | Allows safe continuous connection to V+ or GND during test, fault, or ESD events |
| Wide input common-mode range | Supports direct sensing of signals referenced to ground or negative offsets in single-supply systems |
Applications
| Battery-Powered Threshold Detection | High-Speed A/D Converter Front-End |
|---|---|
Use Scenario: Monitoring battery voltage against low-charge cutoff and overvoltage thresholds in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator performing simultaneous high/low threshold comparison with clean, chatter-free switching. Use Value: Ultra-low 1.4mA total supply current extends runtime; internal hysteresis prevents false triggers near trip points. |
Use Scenario: Converting analog sensor outputs into digital pulses for flash or pipeline ADC sampling clocks. IC Role / Device Role / Timing Role: High-speed comparator generating precise zero-crossing or clock-edge strobes synchronized to analog input slew rate. Use Value: 40ns delay and <2ns channel-to-channel skew ensure sub-25ns timing resolution for 40MSPS+ conversion. |
| Line Receiver for Industrial Serial Links | Zero-Crossing Detector in AC Power Control |
Use Scenario: Recovering TTL-level RS-422/RS-485 differential signals in factory automation gateways. IC Role / Device Role / Timing Role: Single-supply comparator converting differential line voltage into clean, rail-to-rail logic outputs. Use Value: Input range extending 200mV below GND accommodates common-mode noise on long cables without clamping diodes. |
Use Scenario: Detecting AC mains zero crossings to trigger TRIAC firing in smart lighting and motor control. IC Role / Device Role / Timing Role: Precision comparator comparing rectified AC waveform against ground reference to generate synchronous timing edges. Use Value: Low 1mV offset and stable CMRR maintain ±50µs timing accuracy across temperature and line voltage variations. |
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/comparator), no internal hysteresis, open-collector outputs | Requires external pull-ups and hysteresis resistors; unsuitable for >1MHz timing-critical use | Choose only for cost-sensitive, low-speed DC threshold detection where board space permits added passives |
| TLV3501CDR | Faster (4.5ns typ.), rail-to-rail input, CMOS output, but higher quiescent current (8.5mA), no internal hysteresis | Needs external hysteresis network; incompatible with TTL logic loads without level shifters | Select when nanosecond response is mandatory and power budget allows; verify logic interface compatibility |
Compared with LM393DR and TLV3501CDR, the MAX907ESA+ uniquely combines TTL compatibility, internal hysteresis, 40ns speed, and 700µA power in a single 8-pin SO package-making it optimal for compact, battery-aware, high-reliability threshold detection where external components must be minimized.
Availability
MAX907ESA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-speed data acquisition, and industrial line receiver designs requiring stable component supply across extended 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 U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for power, sensing, and timing applications.
The MAX907ESA+ belongs to Maxim's legacy ultra-low-power comparator family, engineered specifically for single-supply, high-speed decision-making in portable and noise-sensitive systems where precision, speed, and minimal external components are critical.
FAQ
What is the operating temperature range for the MAX907ESA+?
The MAX907ESA+ is rated for –40°C to +85°C ambient operation. This extended industrial temperature range ensures reliable performance in automotive cabin modules, outdoor IoT sensors, and factory-floor controllers where thermal cycling occurs. The "E" grade suffix in MAX907ESA+ explicitly denotes this –40°C to +85°C specification, validated per Maxim's production test flow.
Does the MAX907ESA+ require external pull-up resistors on its outputs?
No, the MAX907ESA+ does not require external pull-up resistors. Its outputs are TTL-compatible push-pull drivers capable of sourcing 100µA and sinking 8mA while maintaining VOH ≥2.8V and VOL ≤0.55V under load. This eliminates external components and simplifies PCB layout-unlike open-collector comparators such as the LM393.
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 logic levels fall outside TTL thresholds, input common-mode range collapses, and propagation delay degrades significantly. For 3.3V systems, consider the MAX9021 or TLV3501 as functionally aligned alternatives with rail-to-rail I/O.
What is the purpose of internal hysteresis in the MAX907ESA+?
The internal hysteresis in the MAX907ESA+ (~5mV input-referred) prevents output oscillation when input signals transition slowly or reside near the trip point. It creates distinct upper and lower thresholds (VTRIP+ and VTRIP–), ensuring clean, chatter-free switching without requiring external positive-feedback resistors-a key advantage over basic comparators like the LM311.
Is the MAX907ESA+ pin-compatible with other devices in the MAX907/MAX908/MAX909 family?
Yes, the MAX907ESA+ shares identical 8-pin SO pinout with the MAX909ESA+ and MAX907CPA, including V+, OUTA, INA–, INA+, GND, INB+, INB–, and OUTB. However, the MAX909 includes latch and complementary outputs (QOUT/QOUT) on different pins, so direct substitution requires circuit verification-only the MAX907 variants (e.g., MAX907CSA) are functionally and pin-for-pin compatible.
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:
- 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:
- 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
Texas Instruments
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LM339DR
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
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LM239DR
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
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NCX2200GMAZ
NXP USA Inc.
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