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Texas Instruments LM360M
- Part No.:
- LM360M
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM360M.pdf
- Description:
- IC COMPARATOR 1 DIFF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,540
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Product details
Overview
LM360M from Texas Instruments is a high-speed differential comparator with complementary TTL outputs, 20 ns max propagation delay, ±5 V differential input range, and 0°C to +70°C operating temperature. It serves as a pin-for-pin replacement for μA760/μA760C in zero-crossing detection and high-speed A/D converter front-ends.
For engineers reviewing the LM360M datasheet, LM360M pinout, LM360M application, or LM360M equivalent, key selection criteria include propagation delay matching between complementary outputs, input offset voltage ≤5 mV, fan-out of 4 TTL loads, and SOIC-8 package compatibility with legacy board layouts.
Technical Context
The LM360M implements a bipolar differential pair architecture optimized for speed and low input offset, delivering 12–25 ns response time across ±4.5 V to ±6.5 V supply ranges. Its complementary TTL outputs exhibit ≤2 ns skew under matched loading conditions.
Designed for analog-to-digital interface stages, it supports common-mode input range up to ±4.5 V with 17 kΩ input resistance and 3 pF input capacitance at 1 MHz, enabling stable operation with fast-rising signals in disk file system timing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 12–25 ns typical; ensures sub-40 ns decision latency in high-speed sampling systems |
| Delay Matching (Outputs) | ≤2 ns difference; enables precise edge alignment for differential logic decoding |
| Input Offset Voltage | 2–5 mV max; minimizes threshold error in precision zero-crossing detection |
| Supply Voltage Range | ±4.5 V to ±6.5 V; compatible with standard ±5 V analog signal chains |
| Fan-out Capability | 4 TTL loads; drives multiple downstream logic gates without buffering |
| Operating Temperature | 0°C to +70°C; suitable for commercial-grade embedded control and data acquisition |
| Input Resistance | 17 kΩ at 1 MHz; reduces loading on high-impedance sensor or DAC outputs |
Pinout & Package
LM360M is housed in an 8-pin SOIC (D) package per JEDEC MS-012 variation AA, 1.75 mm max height, with 1.27 mm lead pitch and Q1 pin 1 orientation in tape.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−IN) | Differential input node accepting negative-going signal transitions |
| 2 | Non-Inverting Input (+IN) | Differential input node accepting positive-going signal transitions |
| 3 | Negative Supply (V−) | −4.5 V to −6.5 V return path for internal bias and output stage |
| 4 | Output A (VO1) | Complementary TTL-high active output; logic high = ≥2.4 V @ −320 µA |
| 5 | Output B (VO2) | Complementary TTL-low active output; logic low = ≤0.4 V @ 6.4 mA sink |
| 6 | Positive Supply (V+) | +4.5 V to +6.5 V power rail for internal circuitry and output drivers |
| 7 | Offset Null (NC) | No internal connection; unused terminal per TI datasheet |
| 8 | Ground / Case | Reference node for output logic levels and thermal dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Complementary TTL Outputs | Simultaneous high/low logic states enable direct interfacing with 74-series logic without inverters |
| Tight Output Skew | ≤2 ns delay mismatch ensures synchronized decision edges for clock/data recovery |
| Low Input Offset Drift | 8 µV/°C tempco maintains threshold stability across ambient temperature swings |
| High Input Impedance | 17 kΩ resistance minimizes signal attenuation when driving from high-Z sources like op-amp buffers |
| ESD Robustness | 1600 V HBM rating allows safe handling in standard assembly environments without special precautions |
Applications
| Disk Drive Read Channel | High-Speed Data Acquisition |
|---|---|
Use Scenario: Detecting magnetic flux reversals from read heads in hard disk drive servo systems. IC Role / Device Role / Timing Role: Zero-crossing detector converting analog head signal into clean digital timing edges. Use Value: 20 ns max delay and ≤2 ns output skew ensure accurate sector boundary identification at multi-MHz rotation speeds. | Use Scenario: Front-end signal conditioning before flash ADC sampling in oscilloscopes and logic analyzers. IC Role / Device Role / Timing Role: High-speed comparator generating strobe pulses synchronized to analog input transitions. Use Value: 12 ns typical response time enables >40 MSPS sampling rate support with minimal aperture jitter. |
| Motor Commutation Control | Power Supply Overvoltage Protection |
Use Scenario: Monitoring back-EMF zero crossings in brushless DC motor phase windings. IC Role / Device Role / Timing Role: Differential comparator detecting rotor position for electronic commutation timing. Use Value: ±4.5 V common-mode range accommodates noisy motor voltage waveforms while rejecting supply ripple. | Use Scenario: Triggering shutdown circuitry when DC bus voltage exceeds safe threshold in SMPS designs. IC Role / Device Role / Timing Role: Precision overvoltage monitor comparing scaled bus voltage against reference. Use Value: 2 mV min input offset voltage ensures trip point accuracy within ±5 mV tolerance bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed differential comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM360MX/NOPB | Same die, identical electrical specs; differs only in packaging (2500-piece tape-and-reel vs. 95-piece tube) | Optimized for automated SMT placement; same board layout and thermal profile | Select LM360MX/NOPB for high-volume production; LM360M/NOPB.B for prototyping or low-volume builds |
| TL3016CD | 25 ns max delay (vs. 20 ns), 10 mV max offset (vs. 5 mV), SOIC-8 but non-pin-compatible pinout | Requires PCB redesign; suited for new designs where tighter delay spec is not critical | Choose TL3016CD only if LM360M supply constraints exist and layout revision is acceptable |
Compared with LM360MX/NOPB, LM360M offers identical performance in a tube-packaged form ideal for manual assembly and evaluation; versus TL3016CD, LM360M delivers superior delay consistency and lower offset but requires no layout change due to SOIC-8 pin compatibility.
Availability
LM360M is available at Aetrix Electronics and suitable for disk drive servo systems, high-speed data acquisition front-ends, and motor commutation control requiring stable component supply across extended product lifecycles.
Supply support for LM360M 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal technologies with over 90 years of innovation history.
The LM360M belongs to TI's legacy high-speed comparator product line, engineered specifically for precision timing-critical analog-digital interface applications in commercial-grade systems.
FAQ
What is the maximum operating supply voltage for the LM360M?
The LM360M supports ±4.5 V to ±6.5 V supply rails, with absolute maximum ratings of ±8 V. Operation beyond ±6.5 V risks exceeding specified electrical characteristics and may degrade long-term reliability. The LM360M must be biased within this range to guarantee 20 ns max propagation delay and ≤2 ns output skew performance.
Does the LM360M require external compensation components?
No, the LM360M is internally compensated and operates stably without external capacitors or resistors. Its bipolar architecture and fixed gain-bandwidth product eliminate need for user-adjusted frequency compensation. This simplifies design around the LM360M in high-speed comparator applications such as zero-crossing detection and A/D converter triggering.
Is the LM360M pin-compatible with the μA760C comparator?
Yes, the LM360M is explicitly specified as a pin-for-pin replacement for the μA760C, sharing identical SOIC-8 pinout, supply connections, and input/output terminal assignments. This allows drop-in substitution in legacy designs without PCB modification, preserving existing layout while improving speed and input impedance over the older device.
What is the input common-mode voltage range for the LM360M?
The LM360M supports a common-mode input range of ±4 V to ±4.5 V when operated at ±6.5 V supplies. This wide range enables robust operation in noisy environments such as motor control feedback paths or disk drive read channels where large common-mode transients occur alongside small differential signals.
Can the LM360M drive standard TTL logic directly?
Yes, the LM360M provides true complementary TTL outputs capable of sourcing ≥2.4 V at −320 µA and sinking ≤0.4 V at 6.4 mA, meeting 74-series TTL voltage thresholds. Its fan-out of 4 confirms direct drive capability for up to four standard TTL inputs without level-shifting or buffering circuitry.
LM360M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Differential
- Number of Elements:
- 1
- Output Type:
- Complementary, TTL
- Voltage - Supply, Single/Dual (±):
- ±4.5V ~ 6.5V
- :
- 5mV
- Voltage - Input Offset (Max):
- 20µA
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 32mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 130ns
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
LM360M FAQ
1.How can I place an order for LM360M through Aetrix?
Please submit a Request for Quotation (RFQ) for LM360M 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 LM360M reliable?
The price and inventory of LM360M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM360M is usually 5 days.
3.What payment methods are accepted for LM360M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM360M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM360M?
LM360M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM360M 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 LM360M?
For technical support, including LM360M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM360M requirements.
6.How does Aetrix verify that LM360M is sourced from the original manufacturer or authorized distributors?
All LM360M 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 LM360M meets industry standards.
7.What is the process for return or replacement of LM360M?
All LM360M units undergo pre-shipment inspection (PSI). If there is an issue with LM360M, 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 LM360M part is unused and in its original packaging.
Return procedure for LM360M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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