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Texas Instruments LM7372IMA/NOPB
- Part No.:
- LM7372IMA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM7372IMA/NOPB.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:243
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Product details
Overview
LM7372IMA/NOPB from Texas Instruments is a high-speed dual voltage-feedback operational amplifier optimized for video, xDSL, and pulse-amplifier applications. It delivers 3000 V/µs slew rate, 120 MHz gain bandwidth product, −80 dBc HD2 at 1 MHz (2 VP-P, RL = 100 Ω), ±150 mA output current, and operates stably at gains ≥ +2 or −1 - enabling use in transformer drivers, laser diode interfaces, and HDTV signal paths.
For engineers reviewing the LM7372IMA/NOPB datasheet, LM7372IMA/NOPB pinout, LM7372IMA/NOPB application, or LM7372IMA/NOPB equivalent, key selection considerations include harmonic distortion performance at 1–10 MHz, thermal management under ±12 V/±15 V split-supply operation, output drive capability into 100 Ω loads, and SO PowerPAD package layout requirements for junction temperature control.
Technical Context
The LM7372IMA/NOPB integrates two independent high-slew-rate amplifiers on TI's VIP™III complementary bipolar process, featuring class-AB output stages with dynamically adjusted quiescent current to sustain linearity during large-signal, high-frequency operation. Its voltage-feedback architecture supports standard configurations (inverting/non-inverting, differential, current-to-voltage) while delivering current-feedback-like transient response.
It achieves stability without external compensation at closed-loop gains of +2 or −1, with phase margin ≥70° and −3 dB bandwidth of 220 MHz at AV = +2 (±15 V). Harmonic distortion is minimized via low crossover distortion design, verified by −91 dBc HD3 and −80 dBc HD2 at 1 MHz under 2 VP-P output into 100 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 3000 V/µs - enables clean 100 MHz square-wave reproduction with <50 ns rise/fall times into 100 Ω |
| Gain Bandwidth Product | 120 MHz - supports stable unity-gain-buffered video distribution up to ~80 MHz |
| Output Current | ±150 mA - drives 100 Ω video lines, twisted-pair transformers, or laser diodes without external buffers |
| HD2 @ 1 MHz | −80 dBc (2 VP-P, RL = 100 Ω) - meets stringent SFDR requirements for ADSL upstream DMT channel separation |
| Supply Voltage Range | ±5 V to ±15 V - supports portable (±5 V) and high-dynamic-range (±15 V) systems with >26 V total swing |
| Input Offset Voltage | 2.0 mV (typ) - ensures <10 mV DC error in precision gain stages without trimming |
| Operating Temperature | −40°C to +85°C - qualified for industrial video equipment and telecom line cards |
Pinout & Package
LM7372IMA/NOPB uses the 8-pin SO PowerPAD (DDA) package (4.90 mm × 3.91 mm), with exposed thermal pad electrically tied to V−. The package provides RθJA = 47°C/W with 2 in² copper heatsink (1 oz, top/bottom layers), enabling sustained 150 mA output at elevated ambient temperatures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing/sinking ±150 mA into 100 Ω loads |
| 2 | −IN A | Inverting input A - high-impedance node (3.3 MΩ differential) for feedback network connection |
| 3 | +IN A | Non-inverting input A - common-mode range extends to ±13 V (±15 V supply) |
| 4 | V− | Negative supply rail - internal die attach connects exposed PowerPAD to this pin |
| 5 | +IN B | Non-inverting input B - independent channel; identical specs to Channel A |
| 6 | −IN B | Inverting input B - supports dual-channel differential signaling or independent signal paths |
| 7 | OUT B | Amplifier B output - fully symmetrical with OUT A; no crosstalk degradation above 80 dB |
| 8 | V+ | Positive supply rail - supplies both amplifiers; decoupling (0.1 µF) required at pin |
Key Features
| Feature | Design Value |
|---|---|
| High Slew Rate + Wide GBW | 3000 V/µs / 120 MHz enables simultaneous high-fidelity video and RF signal processing in single IC |
| Low Distortion at High Frequency | −91 dBc HD3 @ 1 MHz ensures minimal intermodulation in multi-tone xDSL upstream transmission |
| Dual Independent Amplifiers | Two matched channels on one die reduce board space vs discrete op-amps and improve timing skew (<100 ps) |
| Robust Output Drive | ±150 mA into 100 Ω allows direct driving of CATV splitters, coaxial cables, and laser diodes without external transistors |
| Thermally Optimized Package | SO PowerPAD with V−-tied thermal pad reduces junction-to-ambient resistance to 47°C/W, critical for continuous 300 mW dissipation |
Applications
| ADSL Line Driver | HDTV Signal Distribution |
|---|---|
Use Scenario: Upstream signal conditioning in Customer Premise Equipment (CPE) for Discrete MultiTone (DMT) modulation over POTS lines (20–135 kHz). IC Role / Device Role / Timing Role: Dual-channel driver amplifying and balancing DMT tones before transformer coupling to twisted-pair line. Use Value: −80 dBc HD2 and −91 dBc HD3 at 1 MHz prevent harmonic interference with downstream 138–1104 kHz bands, meeting ITU-T G.992.1 spectral mask requirements. |
Use Scenario: RGB/YUV component video buffering and level-shifting in professional broadcast cameras and switchers. IC Role / Device Role / Timing Role: Dual-channel video amplifier maintaining 0.01% differential gain and 0.02° differential phase across 3.58 MHz NTSC/PAL signals. Use Value: Preserves color fidelity and sync integrity over long coaxial runs; 200 MHz −3 dB bandwidth supports 1080p60 analog video without roll-off. |
| Pulse Amplifier for Test Equipment | Laser Diode Driver (Pulsed) |
Use Scenario: Fast edge generation and amplification in automated test equipment (ATE) for semiconductor parametric testing. IC Role / Device Role / Timing Role: High-fidelity pulse shaper delivering <5 ns rise time and <1% overshoot into 50 Ω loads. Use Value: 3000 V/µs slew rate and 70° phase margin ensure sub-10 ns settling to 0.1%, critical for accurate timing margin analysis. |
Use Scenario: Short-pulse current source for edge-emitting laser diodes in fiber-optic transceivers and LiDAR modules. IC Role / Device Role / Timing Role: Transconductance amplifier converting TTL-level pulses into precise 100–150 mA optical drive currents. Use Value: ±150 mA output current and 220 MHz bandwidth enable <10 ns optical pulse rise/fall, supporting 100+ Mbps data rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3202D | Higher slew rate (4700 V/µs), lower supply current (11 mA), but only ±65 mA output drive and no guaranteed stability at AV = +2 | Better for ultrafast pulse shaping; unsuitable for 100 Ω video distribution or laser diode drive requiring >100 mA | Select THS3202D only when slew rate dominates over output current and load drive capability. |
| OPA2691U | Lower distortion (−92 dBc HD3 @ 1 MHz), higher GBW (320 MHz), but limited output current (±80 mA) and requires AV ≥ +5 for stability | Preferred for ADC/DAC buffer stages needing ultra-low noise; not viable for transformer or coaxial line driving | Choose OPA2691U for precision wideband signal chains where load impedance ≥ 600 Ω and gain ≥ +5. |
Compared with THS3202D and OPA2691U, LM7372IMA/NOPB uniquely balances 3000 V/µs slew rate, ±150 mA drive, and unconditional stability at AV = +2 - making it the only option among the three for robust 100 Ω video, xDSL, and pulsed laser interface applications without external gain boosting or current boosting stages.
Availability
LM7372IMA/NOPB is available at Aetrix Electronics and suitable for ADSL line drivers, HDTV signal distribution, pulse amplifiers, laser diode interfaces, and professional video camera designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for LM7372IMA/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 connectivity technologies, with decades of expertise in high-performance op-amps and signal-chain solutions.
The LM7372IMA/NOPB belongs to TI's high-speed precision op-amp product line, engineered specifically for demanding broadband applications including xDSL, broadcast video, and test instrumentation where distortion, speed, and output drive must coexist.
FAQ
What is the minimum stable gain for LM7372IMA/NOPB?
The LM7372IMA/NOPB is unconditionally stable for closed-loop gains of +2 or −1 and above. This is verified across temperature and supply voltage ranges per the datasheet's phase margin (≥70°) and −3 dB bandwidth (220 MHz at AV = +2). Gains below +2 require external compensation and are not characterized or guaranteed for stability.
Does LM7372IMA/NOPB support single-supply operation?
Yes, LM7372IMA/NOPB operates from +5 V to +36 V total supply (e.g., V+ = +12 V, V− = GND). However, input common-mode range is limited to ±3 V with ±5 V supplies and ±13 V with ±15 V supplies. For true rail-to-rail input in single-supply mode, external level-shifting or biasing is required.
What is the thermal pad connection requirement for LM7372IMA/NOPB?
The exposed thermal pad on the LM7372IMA/NOPB SO PowerPAD package must be soldered to a PCB copper pour tied to the V− net. TI specifies this connection to maintain thermal resistance at 47°C/W. Leaving the pad floating or connecting it to GND (if V− ≠ GND) violates thermal design rules and risks junction overheating beyond 150°C.
How does LM7372IMA/NOPB achieve low harmonic distortion at 1 MHz?
LM7372IMA/NOPB achieves −80 dBc HD2 and −91 dBc HD3 at 1 MHz through TI's VIP™III bipolar process and class-AB output stage biased to minimize crossover distortion. Each amplifier draws >3 mA quiescent current in the output stage - confirmed by typical supply current of 13 mA (both amps) - ensuring linear conduction across zero-crossings even at high frequencies.
Can LM7372IMA/NOPB drive a 50 Ω load continuously?
Yes, LM7372IMA/NOPB can deliver ±150 mA into 100 Ω, so it safely drives 50 Ω loads at ≤±75 mA output current. At full ±150 mA into 50 Ω, power dissipation exceeds 2.25 W per amplifier - exceeding package limits. For continuous 50 Ω drive, limit peak output to ±75 mA or implement active current limiting and enhanced heatsinking.
LM7372IMA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 3000V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 220 MHz
- Current - Input Bias:
- 2.7 µA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 13mA (x2 Channels)
- Current - Output / Channel:
- 260 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
LM7372IMA/NOPB FAQ
1.How can I place an order for LM7372IMA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7372IMA/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 LM7372IMA/NOPB reliable?
The price and inventory of LM7372IMA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7372IMA/NOPB is usually 5 days.
3.What payment methods are accepted for LM7372IMA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7372IMA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7372IMA/NOPB?
LM7372IMA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7372IMA/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 LM7372IMA/NOPB?
For technical support, including LM7372IMA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7372IMA/NOPB requirements.
6.How does Aetrix verify that LM7372IMA/NOPB is sourced from the original manufacturer or authorized distributors?
All LM7372IMA/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 LM7372IMA/NOPB meets industry standards.
7.What is the process for return or replacement of LM7372IMA/NOPB?
All LM7372IMA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM7372IMA/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 LM7372IMA/NOPB part is unused and in its original packaging.
Return procedure for LM7372IMA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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