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Texas Instruments LMH7220MG/NOPB
- Part No.:
- LMH7220MG/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMH7220MG/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,701
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Product details
Overview
LMH7220MG/NOPB from Texas Instruments is a high-speed comparator with LVDS differential output, operating from 2.7V to 12V supply, delivering 2.9 ns propagation delay, 0.6 ns rise/fall times, and 325 mV differential swing into 100Ω - used in fast line receivers and oscilloscope triggering circuits.
For engineers reviewing the LMH7220MG/NOPB datasheet, LMH7220MG/NOPB pinout, LMH7220MG/NOPB application, or LMH7220MG/NOPB equivalent, key selection criteria include LVDS output compliance, sub-3 ns propagation delay across 2.7–12V supply range, −40°C to +125°C operation, 6-pin SOT package footprint, and ground-sensing input capability extending 200 mV below GND.
Technical Context
The LMH7220MG/NOPB implements a current-mode LVDS output stage with internal 1.2 V common-mode reference and dual 3.25 mA current sources, enabling standardized 325 mV differential swing across 100 Ω termination. Its input stage supports rail-to-rail common-mode range down to −0.2 V (with 2.7 V supply) and features ESD-protected bipolar input transistors with 1.5 kΩ series resistors.
Propagation delay dispersion remains ≤0.86 ns over 20–100 mV overdrive, and Q-to-Q skew is ≤0.09 ns at 100 mV overdrive, ensuring precise timing alignment in high-speed acquisition systems. The device maintains toggle rates up to 940 Mb/s at 5 V and exhibits RMS random jitter of 4.44 ps at 70 MHz center frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 2.9 ns typical @ 100 mV overdrive, 5 V supply - enables sub-3 ns decision latency in time-critical triggers |
| Rise/Fall Time | 0.6 ns typical (20%–80%) - supports >900 Mb/s data rates with minimal edge distortion |
| LVDS Output Swing | 325 mV differential into 100 Ω - compliant with ANSI/TIA/EIA-644 LVDS standard |
| Supply Voltage Range | 2.7 V to 12 V - allows single-supply operation in 3.3 V, 5 V, and 12 V systems |
| Input Common-Mode Range | −0.2 V to VCC−2 V - supports ground-referenced sensing without level-shifting |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Supply Current | 6.8 mA @ 5 V (load excluded) - enables low-power high-speed comparison in battery-sensitive designs |
Pinout & Package
LMH7220MG/NOPB is housed in a 6-pin SOT-23 package (DBV), with 0.95 mm pitch, 2.9 mm × 1.6 mm footprint, and 1.05 mm max height - optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Differential input node; accepts common-mode voltages down to −0.2 V |
| 2 (GND) | Ground Reference | LVDS output common-mode reference and substrate return path |
| 3 (IN+) | Non-Inverting Input | Differential input node; matched to IN− for <100 ps skew |
| 4 (VCC) | Positive Supply | Supports 2.7–12 V; powers internal bias and output current sources |
| 5 (OUT Q) | LVDS True Output | Current-source-driven output; sinks 3.25 mA when logic low |
| 6 (OUT Q) | LVDS Complement Output | Complementary current-source output; provides noise rejection via differential signaling |
Key Features
| Feature | Design Value |
|---|---|
| LVDS-compliant output stage | Internally regulated 1.2 V common-mode voltage and matched 3.25 mA current sources ensure ANSI/TIA/EIA-644 compliance without external biasing |
| Sub-3 ns propagation delay | 2.9 ns typical at 100 mV overdrive enables real-time pulse detection in high-frequency acquisition systems |
| Extended input voltage range | Operates with inputs as low as −0.2 V (vs. GND), eliminating need for negative supplies in ground-sensing applications |
| Low jitter performance | 4.44 ps RMS random jitter at 70 MHz supports clean signal integrity in high-speed digital interfaces |
| Wide temperature operation | Specified from −40°C to +125°C with monotonic delay shift (<0.3 ns/°C), suitable for harsh-environment timing |
Applications
| Acquisition Trigger | Fast Differential Line Receiver |
|---|---|
Use Scenario: High-speed data acquisition system capturing transient events with nanosecond timing resolution. IC Role / Device Role / Timing Role: Comparator generating precise trigger pulses synchronized to input edge crossings. Use Value: 2.9 ns propagation delay and <0.09 ns Q-to-Q skew enable deterministic trigger timing across temperature and supply variations. |
Use Scenario: Receiving high-speed differential signals over twisted-pair cables in test equipment or communication backplanes. IC Role / Device Role / Timing Role: LVDS receiver converting differential analog inputs into clean digital logic levels. Use Value: 325 mV LVDS output swing and 100 Ω termination compatibility ensure robust noise immunity and signal integrity at >900 Mb/s. |
| Pulse Height Analyzer | Oscilloscope Triggering |
Use Scenario: Measuring amplitude distribution of short-duration pulses in nuclear instrumentation or laser detection. IC Role / Device Role / Timing Role: Threshold comparator discriminating pulse amplitudes with minimal delay-induced timing walk. Use Value: Input offset voltage <±9.5 mV and overdrive dispersion ≤0.86 ns reduce amplitude-dependent timing uncertainty in pulse analysis. |
Use Scenario: Generating stable, low-jitter trigger signals for digital storage oscilloscopes sampling at GHz rates. IC Role / Device Role / Timing Role: Front-end comparator detecting input threshold crossings with sub-nanosecond jitter. Use Value: 4.44 ps RMS jitter and 0.6 ns edge fidelity preserve trigger accuracy for high-bandwidth waveform capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MR/NOPB | Dual-channel, 2.2 ns propagation delay, same 6-pin SOT package but higher supply current (10.5 mA) | Better suited for multi-threshold or channel-matched timing; not pin-compatible due to different pin assignment | Select when dual independent comparators with tighter skew (<50 ps) are required; requires PCB redesign |
| ADCMP572BCPZ-R2 | 3.3 V only, 1.5 ns propagation delay, CML output (not LVDS), 16-pin LFCSP package | Higher speed but incompatible interface and package; requires external termination and level translation | Choose for ultra-low-latency (<1.6 ns) applications where LVDS output is not mandatory and board space allows larger package |
Compared with LMH7220MG/NOPB, LMH7322MR/NOPB offers dual channels and faster response but demands layout changes, while ADCMP572BCPZ-R2 delivers lower latency at the cost of supply inflexibility and non-LVDS signaling - making LMH7220MG/NOPB optimal for single-channel, wide-supply, standards-compliant LVDS interfacing.
Availability
LMH7220MG/NOPB is available at Aetrix Electronics and suitable for high-speed test equipment, industrial data acquisition, and automotive sensor interface applications requiring stable component supply across extended temperature ranges.
Supply support for LMH7220MG/NOPB 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 high-performance signal chain solutions.
The LMH7220MG/NOPB belongs to TI's high-speed comparator product line, engineered for precision timing-critical applications including oscilloscopes, pulse analyzers, and LVDS-based data links.
FAQ
What is the maximum operating supply voltage for LMH7220MG/NOPB?
The LMH7220MG/NOPB supports an absolute maximum supply voltage of 13.5 V, with recommended operating range from 2.7 V to 12 V. At 12 V, propagation delay improves to 2.7 ns (typical), and supply current increases to 10.0 mA - all specifications remain valid across this full range per the official TI datasheet SNOSAL3E.
Does LMH7220MG/NOPB require external termination resistors for LVDS output?
Yes, LMH7220MG/NOPB requires a 100 Ω differential termination resistor placed across OUT Q and OUT Q pins to achieve the specified 325 mV LVDS output swing. The device drives this load with matched 3.25 mA current sources; omitting the resistor results in undefined output voltage levels and violates ANSI/TIA/EIA-644 compliance.
Can LMH7220MG/NOPB sense signals referenced to ground with a single 3.3 V supply?
Yes, LMH7220MG/NOPB supports input common-mode voltages as low as −0.2 V relative to GND when supplied from 2.7 V - fully covering ground-referenced signals. With a 3.3 V supply, its input range extends from −0.2 V to 1.3 V, enabling direct connection to 0 V–3.3 V signal sources without level-shifting circuitry.
What is the typical LVDS common-mode voltage of LMH7220MG/NOPB outputs?
The LMH7220MG/NOPB maintains a typical output common-mode voltage of 1.2 V, independent of supply voltage, achieved via an internal CM feedback loop. This value is stable across temperature (±15 mV from −40°C to +125°C) and ensures interoperability with standard LVDS receivers expecting 1.2 V ±100 mV common-mode levels.
Is LMH7220MG/NOPB pin-compatible with other TI comparators in SOT-23 packages?
No, LMH7220MG/NOPB uses a unique 6-pin SOT-23 (DBV) pinout optimized for LVDS signaling: pins 1/3 are inputs, pin 2 is GND, pin 4 is VCC, and pins 5/6 are complementary LVDS outputs. It is not pin-compatible with generic comparators like TLV3501 or LMV7219, which assign different functions to the same physical pins.
LMH7220MG/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Complementary, Differential, LVDS
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 12V, ±1.35V ~ 6V
- :
- 9.5mV @ 5V
- Voltage - Input Offset (Max):
- 0.5µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 6.8mA
- Current - Quiescent (Max):
- 70dB CMRR, 74dB PSRR
- CMRR, PSRR (Typ):
- 7ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-6
LMH7220MG/NOPB FAQ
1.How can I place an order for LMH7220MG/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH7220MG/NOPB 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 LMH7220MG/NOPB reliable?
The price and inventory of LMH7220MG/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH7220MG/NOPB is usually 5 days.
3.What payment methods are accepted for LMH7220MG/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH7220MG/NOPB transactions.
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LMH7220MG/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH7220MG/NOPB 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 LMH7220MG/NOPB?
For technical support, including LMH7220MG/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH7220MG/NOPB requirements.
6.How does Aetrix verify that LMH7220MG/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH7220MG/NOPB 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 LMH7220MG/NOPB meets industry standards.
7.What is the process for return or replacement of LMH7220MG/NOPB?
All LMH7220MG/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH7220MG/NOPB, 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 LMH7220MG/NOPB part is unused and in its original packaging.
Return procedure for LMH7220MG/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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