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Analog Devices Inc./Maxim Integrated MAX907CSA
- Part No.:
- MAX907CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX907CSA.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,638
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Product details
Overview
MAX907CSA from Maxim Integrated is a dual high-speed, ultra-low-power single-supply TTL comparator in 8-pin plastic DIP package, delivering 40ns propagation delay with 5mV overdrive, 700µA supply current per comparator, and input common-mode range from –0.2V to V+ – 1.5V. It operates from a single +4.5V to +5.5V supply and is used in battery-powered threshold detection and high-speed sampling circuits.
For engineers reviewing the MAX907CSA datasheet, MAX907CSA pinout, MAX907CSA application, or MAX907CSA equivalent, key selection criteria include its TTL-compatible outputs without pull-ups, built-in hysteresis for clean switching on slow inputs, 500µV typical offset voltage, and robust short-circuit protection on all pins.
Technical Context
The MAX907CSA implements two independent comparators with internal hysteresis (≈4mV input-referred), eliminating external feedback resistors. Its bipolar process enables fast 40ns propagation delay while maintaining micropower operation at 700µA per comparator.
All inputs and outputs are rail-to-rail tolerant - continuously shortable to V+ or GND without damage - and feature TTL-compatible output stages that sink ≥3.2mA and source ≥100µA, ensuring direct interface with standard logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 40ns typical (5mV overdrive); enables timing-critical sampling at >10MHz rates |
| Supply Current per Comparator | 700µA at V+ = 5V; supports multi-year battery life in portable systems |
| Input Offset Voltage | 1mV typical (3.5mV max); ensures accurate threshold detection near ground |
| Input Common-Mode Range | –0.2V to V+ – 1.5V; accepts signals below ground and up to 3.5V on +5V supply |
| Output Type | TTL-compatible open-collector equivalent; drives standard 74LS loads without external pull-up |
| Power Dissipation per Comparator | 3.5mW typical; reduces thermal load in dense PCB layouts |
| Hysteresis Width | ≈4mV (VTRIP+ – VTRIP–); suppresses noise-induced oscillation on slow-moving inputs |
Pinout & Package
MAX907CSA is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch, compatible with standard prototyping and production PCB footprints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input (4.5V to 5.5V); must be decoupled locally with 0.1µF ceramic capacitor |
| 2 | INA− | Inverting input of comparator A; referenced to internal hysteresis center point |
| 3 | INA+ | Noninverting input of comparator A; accepts signals down to –0.2V |
| 4 | GND | Circuit ground reference; requires low-inductance connection to ground plane |
| 5 | INB+ | Noninverting input of comparator B; electrically identical to INA+ |
| 6 | INB− | Inverting input of comparator B; matches INA− performance and biasing |
| 7 | OUTB | Comparator B output; TTL-compatible, sinks ≥3.2mA, sources ≥100µA |
| 8 | OUTA | Comparator A output; identical drive capability and logic thresholds as OUTB |
Key Features
| Feature | Design Value |
|---|---|
| Internal hysteresis | Fixed ≈4mV input-referred window eliminates need for external resistor networks and associated design calculations |
| Rail-tolerant I/O | All inputs and outputs withstand continuous short-circuit to V+ or GND - no latch-up or degradation under fault conditions |
| TTL-compatible outputs | Direct interface with 74LS/ALS logic without pull-up resistors; reduces BOM count and layout area |
| Ultra-low power | 700µA per comparator enables integration into always-on sensor nodes and energy-harvesting systems |
| Wide input common-mode range | Operates with inputs 200mV below GND, supporting ground-referenced AC-coupled signal detection |
Applications
| Battery-Powered Threshold Detection | High-Speed Sampling Circuits |
|---|---|
Use Scenario: Monitoring battery voltage against low-voltage cutoff threshold in portable medical devices. IC Role / Device Role / Timing Role: Dual comparator performs simultaneous high/low threshold comparison with hysteresis to prevent chatter during gradual discharge. Use Value: 700µA total quiescent current extends operational runtime; TTL outputs directly drive microcontroller interrupt pins. |
Use Scenario: Edge-triggered sampling of analog sensor outputs in data acquisition modules. IC Role / Device Role / Timing Role: Fast 40ns response captures precise zero-crossing or pulse edges before ADC conversion. Use Value: Propagation delay stability across temperature ensures consistent sampling jitter <1ns over 0°C to +70°C. |
| Line Receivers | Zero-Crossing Detectors |
Use Scenario: Converting noisy industrial RS-422 differential signals to clean single-ended TTL levels. IC Role / Device Role / Timing Role: One comparator channel compares received signal to mid-rail reference; hysteresis rejects EMI-induced glitches. Use Value: Input range extending 200mV below GND accommodates common-mode offsets in long cable runs. |
Use Scenario: Detecting AC line zero crossings for phase-controlled dimmers and motor drives. IC Role / Device Role / Timing Role: Comparator compares rectified AC waveform to 0V reference; internal hysteresis prevents multiple triggers near zero. Use Value: 500µV offset voltage minimizes timing error; rail-to-rail input allows direct connection to transformer-coupled inputs. |
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; no internal hysteresis; wider supply range (2–36V) | Suitable for general-purpose DC level detection but not high-speed sampling or noise-prone AC sensing | Select when cost sensitivity outweighs speed/hysteresis needs and supply exceeds 5.5V |
| TLV3501CDR | Faster 4.5ns delay; rail-to-rail input; CMOS process; higher 2.5mA supply current | Better for >100MHz sampling but incompatible with ultra-low-power battery designs | Choose when nanosecond timing dominates power budget and 5V-only operation is acceptable |
Compared with LM393DR and TLV3501CDR, the MAX907CSA uniquely balances 40ns speed, 700µA ultra-low power, and integrated hysteresis - making it optimal for 5V battery-operated systems requiring reliable edge detection without external components.
Availability
MAX907CSA is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-speed data acquisition, and industrial line receiver designs requiring stable component supply and long-term obsolescence management.
Supply support for MAX907CSA 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 precision analog, mixed-signal, and high-performance power management ICs for industrial, communications, and consumer applications.
The MAX907CSA belongs to Maxim's legacy high-speed comparator family designed specifically for single +5V systems needing TTL compatibility, micropower operation, and noise-immune threshold detection - targeting portable and space-constrained embedded systems.
FAQ
What is the operating temperature range for the MAX907CSA?
The MAX907CSA is specified for commercial temperature operation from 0°C to +70°C. This range is confirmed in the Ordering Information table where "MAX907CSA" is explicitly listed with "0°C to +70°C" under TEMP RANGE. It uses the same die as the MAX907ESA (–40°C to +85°C) but is screened and tested only to the narrower commercial grade.
Does the MAX907CSA require external pull-up resistors on its outputs?
No, the MAX907CSA does not require external pull-up resistors. Its outputs are fully TTL-compatible, capable of sourcing ≥100µA and sinking ≥3.2mA while maintaining VOH ≥2.8V and VOL ≤0.55V - meeting standard 74LS logic thresholds directly. This is explicitly stated in the General Description and confirmed in the Electrical Characteristics table.
Can the MAX907CSA inputs be driven below ground?
Yes, the MAX907CSA inputs tolerate voltages down to –0.2V relative to GND, as specified in the Common-Mode Input Voltage parameter (–0.2V to V+ – 1.5V). This allows safe interfacing with AC-coupled or slightly negative-biased signals without clamping diodes, though sustained operation below –0.2V requires current limiting per Absolute Maximum Ratings.
Is the MAX907CSA pin-compatible with other devices in the MAX907/MAX908/MAX909 family?
Yes, the MAX907CSA shares identical 8-pin DIP pinout with the MAX907EPA, MAX907CPA, and MAX909CPA. All dual and single variants in DIP packages use the same V+, INA−, INA+, GND, INB+, INB−, OUTB, OUTA assignment. However, the MAX909 includes latch control (LE) and complementary outputs (QOUT/QOUT), so functional compatibility requires circuit-level verification.
What is the typical power dissipation of the MAX907CSA at +5V supply?
The MAX907CSA dissipates 3.5mW per comparator at V+ = 5V, totaling 7mW for both channels. This value is derived from the 700µA typical supply current per comparator (I+) multiplied by 5V, and is explicitly listed as "Power Dissipation per Comparator" in the Electrical Characteristics table under TYP column.
MAX907CSA 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:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
MAX907CSA FAQ
1.How can I place an order for MAX907CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX907CSA 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 MAX907CSA reliable?
The price and inventory of MAX907CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX907CSA is usually 5 days.
3.What payment methods are accepted for MAX907CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX907CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX907CSA?
MAX907CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX907CSA 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 MAX907CSA?
For technical support, including MAX907CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX907CSA requirements.
6.How does Aetrix verify that MAX907CSA is sourced from the original manufacturer or authorized distributors?
All MAX907CSA 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 MAX907CSA meets industry standards.
7.What is the process for return or replacement of MAX907CSA?
All MAX907CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX907CSA, 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 MAX907CSA part is unused and in its original packaging.
Return procedure for MAX907CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX907CSA 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
Texas Instruments
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NCX2200GMAZ
NXP USA Inc.
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