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Texas Instruments LM7372MR
- Part No.:
- LM7372MR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM7372MR.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8SOPWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,236
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Product details
Overview
LM7372MR from Texas Instruments is a high-speed dual voltage-feedback operational amplifier optimized for video, xDSL, and pulse amplification. 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 on ±5 V to ±15 V supplies - enabling use as an ADSL line driver or HDTV video buffer.
For engineers reviewing the LM7372MR datasheet, LM7372MR pinout, LM7372MR application, or LM7372MR equivalent, this page provides verified specifications, SOIC-8 PowerPAD package details, dual-channel video/line-driver use cases, and TI-validated alternatives with documented harmonic distortion and thermal performance trade-offs.
Technical Context
The LM7372MR employs a complementary bipolar Advance VIP™III process with class-AB output stage, enabling simultaneous high slew rate (3000 V/µs) and low distortion (−91 dBc HD3 at 1 MHz). Its voltage-feedback architecture supports stable operation at gains ≥ +2 or ≤ −1 without external compensation.
It integrates two independent amplifiers sharing supply rails, each capable of driving 100 Ω loads to ±13.4 V swing (±15 V supply) or ±2.8 V (±5 V supply), with input common-mode range extending to ±13 V and PSRR > 75 dB across supply variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 3000 V/µs - enables clean 100-MHz small-signal response and fast settling for pulse amplification |
| Gain Bandwidth Product | 120 MHz - supports stable closed-loop gain ≥ +2 up to ~200 MHz (−3 dB) |
| Output Current | ±150 mA - drives 100 Ω video lines or transformer-coupled xDSL interfaces without external buffers |
| Harmonic Distortion | −80 dBc HD2 / −91 dBc HD3 @ 1 MHz, 2 VP-P, RL = 100 Ω - meets CATV and ADSL spectral mask requirements |
| Supply Range | ±5 V to ±15 V - supports portable (±5 V) and high-dynamic-range (±15 V) signal chain designs |
| Differential Gain/Phase | 0.01% / 0.02° @ 3.58 MHz - preserves color fidelity in professional video camera signal paths |
| Input Voltage Noise | 14 nV/√Hz @ 10 kHz - maintains SNR in ADC driver and precision pulse amplification stages |
Pinout & Package
LM7372MR is packaged in an 8-pin SO PowerPAD (DDA) with exposed thermal pad tied to V−. This thermally enhanced package achieves 47°C/W junction-to-ambient resistance when mounted with 2 in² copper heatsink (top/bottom layers, 1 oz Cu).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Channel A output - drives 100 Ω loads directly; requires local 0.1 µF bypass to V− |
| 2 | −IN A | Channel A inverting input - connects to feedback network for gain-setting configurations |
| 3 | +IN A | Channel A non-inverting input - referenced to ground or bias network for single-supply operation |
| 4 | V− | Negative supply rail - internal die attach ties exposed PowerPAD to this pin; must be low-impedance |
| 5 | +IN B | Channel B non-inverting input - electrically isolated from Channel A; shares V+ and V− rails |
| 6 | −IN B | Channel B inverting input - used independently for dual-path signal conditioning (e.g., differential video) |
| 7 | OUT B | Channel B output - identical drive capability to OUT A; supports independent load termination |
| 8 | V+ | Positive supply rail - decoupling capacitor required between V+ and V− near package pins |
Key Features
| Feature | Design Value |
|---|---|
| High Output Current | ±150 mA per channel - eliminates need for external current boosters in laser diode or transformer driver circuits |
| Low Harmonic Distortion | −80 dBc HD2 / −91 dBc HD3 @ 1 MHz - ensures compliance with xDSL spectral emission limits and HDTV color accuracy |
| Wide Supply Range | Operates from ±5 V to ±15 V - supports both battery-powered portable gear and high-voltage broadcast equipment |
| Thermally Optimized Package | SO PowerPAD (DDA) with 47°C/W θJA - sustains full output current at 85°C ambient without derating |
| Stable at Unity-Gain-Inverted Configurations | Stable for gains ≥ +2 or ≤ −1 - enables direct use in inverting video gain blocks without stability compensation |
Applications
| HDSL/ADSL Line Driver | Professional Video Camera Signal Chain |
|---|---|
Use Scenario: Upstream DMT signal transmission over POTS lines with 32-tone 4-kHz spacing and 135-kHz max frequency. IC Role / Device Role / Timing Role: Dual-channel line driver delivering 20 mW average power into 100 Ω twisted-pair via back-terminated outputs. Use Value: −91 dBc HD3 prevents intermodulation products from interfering with downstream signals above 270 kHz. |
Use Scenario: RGB component video buffering before analog-to-digital conversion in broadcast-grade cameras. IC Role / Device Role / Timing Role: Dual op-amp providing DC-coupled, low-phase-shift gain (+2) for 3.58 MHz chroma and 13.5 MHz luma signals. Use Value: 0.01% differential gain and 0.02° phase error preserve NTSC/PAL color fidelity across temperature. |
| HDTV Amplifier Stage | Pulse Amplifier for Test Equipment |
Use Scenario: Driving 75 Ω coaxial distribution networks from HDMI source processors in consumer HDTV systems. IC Role / Device Role / Timing Role: High-current buffer amplifying 1080p/60 video signals with minimal group delay variation. Use Value: 200 MHz −3 dB bandwidth and 3000 V/µs slew rate prevent edge ringing on 1.5 Gbps TMDS transitions. |
Use Scenario: Fast-rising pulse generation (≤10 ns rise time) for semiconductor parametric testers and time-domain reflectometers. IC Role / Device Role / Timing Role: Non-inverting amplifier with matched feedback resistors delivering 10 VP-P pulses into 50 Ω loads. Use Value: 50 ns 0.1% settling time and 70° phase margin ensure accurate pulse amplitude and timing integrity. |
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 −68 dBc HD3 @ 1 MHz (RL = 100 Ω) | Better for ultrafast pulse shaping; less suitable for xDSL where harmonic suppression is critical | Select THS3202D when speed dominates over distortion; verify spectral purity in final layout |
| OPA2691U | Lower distortion (−92 dBc HD3 @ 1 MHz), wider GBW (320 MHz), but limited output current (±110 mA) | Preferred for wideband ADC drivers; insufficient for 100 Ω video line driving at full swing | Choose OPA2691U for high-resolution data acquisition; avoid for transformer or coaxial cable driving |
Compared with THS3202D and OPA2691U, LM7372MR uniquely balances ±150 mA drive, −91 dBc HD3, and SO PowerPAD thermal performance - making it optimal for xDSL line cards and broadcast video where both current delivery and spectral purity are simultaneously constrained.
Availability
LM7372MR is available at Aetrix Electronics and suitable for HDSL/ADSL infrastructure, professional video camera modules, HDTV signal distribution, and high-fidelity pulse amplification requiring stable component supply across multi-year production cycles.
Supply support for LM7372MR 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 LM7372MR belongs to TI's high-speed precision op-amp product line, designed specifically for demanding broadband applications including xDSL, broadcast video, and test instrumentation where distortion, speed, and output drive must coexist.
FAQ
What is the maximum operating temperature for LM7372MR?
The LM7372MR has an operating temperature range of −40°C to +85°C. Its SO PowerPAD package achieves 47°C/W thermal resistance with proper PCB copper heatsinking, allowing full ±150 mA output current at 85°C ambient without exceeding the 150°C maximum junction temperature. Thermal design must include 2 in² of 1 oz copper connected to the exposed pad and V− pin.
Can LM7372MR operate on single-supply configurations?
Yes, LM7372MR supports single-supply operation down to +5 V total supply (e.g., V+ = 5 V, V− = 0 V), with input common-mode range extending to within 2 V of rails and output swing to within 1.2 V of each rail under 1 kΩ load. For optimal performance, bias the +IN pins at mid-supply using resistor dividers and bypass capacitors, as shown in Figure 24 of the SNOS926F datasheet.
What is the recommended PCB layout for LM7372MR's PowerPAD?
The LM7372MR's exposed PowerPAD must be soldered to a low-thermal-resistance copper area tied to V−. TI recommends connecting the pad to V− using ≥4 thermal vias (0.3 mm diameter) spaced evenly beneath the pad, each landing on inner-layer 1 oz copper planes. Avoid floating the pad - die attach material is conductive and internally bonded to V−, so electrical isolation risks latch-up or damage.
How does LM7372MR compare to standard voltage-feedback op-amps in stability?
LM7372MR is unconditionally stable for closed-loop gains ≥ +2 or ≤ −1 without external compensation, unlike many high-speed op-amps requiring gain-setting resistors or feedback capacitors. This stability arises from its hybrid voltage-feedback architecture with current-feedback slewing characteristics, enabling direct use in video gain blocks and line drivers without risk of oscillation at high frequencies.
Is LM7372MR pin-compatible with other TI dual op-amps like LMH6624?
No, LM7372MR is not pin-compatible with LMH6624 or other TI dual op-amps. LM7372MR uses an 8-pin SO PowerPAD (DDA) pinout: OUT A, −IN A, +IN A, V−, +IN B, −IN B, OUT B, V+. LMH6624 uses an 8-pin SOIC with different pin assignments (e.g., V− at Pin 4, V+ at Pin 8, no dedicated PowerPAD). PCB redesign is required for substitution.
LM7372MR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 8-SO PowerPad
LM7372MR FAQ
1.How can I place an order for LM7372MR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7372MR 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 LM7372MR reliable?
The price and inventory of LM7372MR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7372MR is usually 5 days.
3.What payment methods are accepted for LM7372MR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7372MR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7372MR?
LM7372MR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7372MR 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 LM7372MR?
For technical support, including LM7372MR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7372MR requirements.
6.How does Aetrix verify that LM7372MR is sourced from the original manufacturer or authorized distributors?
All LM7372MR 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 LM7372MR meets industry standards.
7.What is the process for return or replacement of LM7372MR?
All LM7372MR units undergo pre-shipment inspection (PSI). If there is an issue with LM7372MR, 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 LM7372MR part is unused and in its original packaging.
Return procedure for LM7372MR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM7372MR Tags
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