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Texas Instruments LMH6723MA-TI
- Part No.:
- LMH6723MA-TI
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6723MA-TI.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:45,710
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Product details
Overview
LMH6723MA-TI from Texas Instruments (formerly National Semiconductor) is a single-channel current-feedback operational amplifier optimized for high-speed video and portable signal conditioning. It delivers 260 MHz small-signal bandwidth at +2 V/V gain, 600 V/µs slew rate, and 110 mA linear output current while consuming only 1 mA from ±5 V supplies. Its 0.03% differential gain and 0.11° differential phase meet NTSC/PAL video line driver requirements.
For engineers reviewing the LMH6723MA-TI datasheet, LMH6723MA-TI pinout, LMH6723MA-TI application, or LMH6723MA-TI equivalent, key selection criteria include its current-feedback architecture, 5-pin SOT-23 and 8-pin SOIC package options, unity-gain stability, 4.5–12 V supply range, and verified video performance with back-terminated 75 Ω loads.
Technical Context
The LMH6723MA-TI employs a current-feedback topology with a low-impedance inverting input (~500 Ω) and high-impedance non-inverting input (~100 kΩ), enabling gain-independent bandwidth control via feedback resistor tuning. Its VIP10 complementary bipolar process ensures fast settling (30 ns to 0.05%), low distortion (−65 dBc HD2 at 5 MHz), and stable operation across ±2.5 V to ±5 V supplies.
Unlike voltage-feedback op amps, the LMH6723MA-TI requires careful RF selection (e.g., 1200 Ω for +2 V/V) to balance bandwidth flatness and stability-reducing RF induces peaking, while increasing it rolls off response. It supports both single-supply (e.g., 5 V with AC-coupled video) and split-supply configurations without internal ground reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal BW | 260 MHz at AV = +2 V/V - enables full-bandwidth amplification of HD video baseband signals up to ~100 MHz with <0.1 dB gain flatness |
| Slew Rate | 600 V/µs - supports clean 4 V step transitions in <2.5 ns, critical for composite video pulse fidelity |
| Supply Current | 1.2 mA typical at ±5 V - allows battery-powered portable video systems with minimal thermal load |
| Output Current | ±110 mA linear sourcing/sinking - drives 75 Ω back-terminated cables directly without external buffers |
| Differential Gain/Phase | 0.03% / 0.11° at 4.43 MHz - meets stringent NTSC broadcast-grade video specification |
| Input Voltage Range | ±4.0 V common-mode - accommodates rail-to-rail input signals in ±5 V systems |
| Unity-Gain BW | 370 MHz - provides headroom for high-frequency filter design and A/D driver applications |
Pinout & Package
The LMH6723MA-TI is packaged in an 8-pin SOIC (NSC drawing M08A) with standard surface-mount footprint and 1.27 mm lead pitch. Thermal resistance θJA is 166 °C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Low-impedance node (~500 Ω); connects to feedback network; sensitive to parasitic capacitance |
| 2 | Non-Inverting Input (+) | High-impedance node (~100 kΩ); used for signal reference or DC biasing |
| 3 | V− | Negative supply rail; must be decoupled locally with 0.1 µF ceramic capacitor |
| 4 | Output | Capable of ±110 mA linear drive into 100 Ω; requires series resistor for >100 pF capacitive loads |
| 5 | V+ | Positive supply rail; decoupling identical to V−; supports 4.5–12 V total supply range |
| 6 | NC | No connect - internally unused; must remain unconnected per datasheet |
| 7 | NC | No connect - internally unused; must remain unconnected per datasheet |
| 8 | NC | No connect - internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables stable wideband operation independent of closed-loop gain via RF tuning-no bandwidth trade-off when increasing gain |
| Video-optimized distortion performance | 0.03% DG / 0.11° DP ensures broadcast-compliant NTSC/PAL signal integrity without post-correction circuitry |
| Single-supply video capability | Operates from 5 V with AC-coupled, level-shifted input-enables direct integration into portable DVD players and camcorders |
| Low-power high-speed operation | 1 mA supply current at ±5 V delivers 260 MHz bandwidth-uniquely balances portability and performance vs. legacy CLC450-class amplifiers |
| Robust ESD protection | 2000 V HBM rating protects against handling damage during PCB assembly and field service |
Applications
| NTSC Line Driver | PAL Video Buffer |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable from video DAC output in set-top box or analog TV tuner. IC Role / Device Role / Timing Role: High-fidelity current-feedback buffer maintaining composite sync tip and chroma burst integrity. Use Value: 0.03% differential gain preserves color saturation; 600 V/µs slew rate prevents luminance edge smearing over 4.43 MHz chroma carrier. | Use Scenario: Re-broadcasting PAL composite video from security DVR to monitor wall via long cable runs. IC Role / Device Role / Timing Role: Back-terminated line driver compensating for transmission line loss and reflections. Use Value: 0.11° differential phase avoids hue shift in PAL's phase-sensitive color encoding; 110 mA output sustains 1 Vpp into 75 Ω with <1% amplitude droop. |
| A/D Converter Driver | Portable DVD Player Output Stage |
Use Scenario: Conditioning baseband video before 10-bit/40 MSPS ADC in medical imaging front-end. IC Role / Device Role / Timing Role: Wideband, low-noise gain stage with 4.3 nV/√Hz input noise and 30 ns settling to 0.05%. Use Value: 260 MHz bandwidth captures full Nyquist zone; 0.1 dB flatness to 100 MHz ensures accurate spectral representation without correction. | Use Scenario: Final-stage video amplification in handheld DVD player feeding LCD panel with integrated 75 Ω termination. IC Role / Device Role / Timing Role: Low-quiescent-current driver operating from single 5 V supply with AC-coupled input. Use Value: 1.2 mA supply current extends battery life; rail-to-rail output swing (±3.9 V) delivers full 1 Vpp composite signal with no headroom loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3091DR | Higher slew rate (2000 V/µs), higher supply current (11 mA), SOIC-8 package | Better for ultra-fast pulse applications (>100 MHz transients); unsuitable for battery-powered devices | Select THS3091DR only when 2000 V/µs slew and 100+ MHz large-signal BW are mandatory-and power budget permits 10× higher ICC |
| LMH6702MA | Wider bandwidth (1.7 GHz UGBW), higher supply current (5.5 mA), same SOIC-8 footprint | Targeted at RF IF amplification and high-frequency test equipment-not optimized for video DG/DP specs | Choose LMH6702MA for >500 MHz small-signal gain stages where video linearity is secondary to raw bandwidth |
Compared with THS3091DR and LMH6702MA, the LMH6723MA-TI uniquely balances video-grade linearity (0.03% DG), low power (1.2 mA), and sufficient bandwidth (260 MHz) for portable/commercial video systems-making it the optimal choice where battery life, cost, and broadcast compliance intersect.
Availability
LMH6723MA-TI is available at Aetrix Electronics and suitable for NTSC line drivers, PAL video buffers, A/D converter drivers, and portable DVD player output stages requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for LMH6723MA-TI 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 acquired National Semiconductor in 2011 and maintains full technical and manufacturing continuity for legacy VIP10-process high-speed analog products.
The LMH6723MA-TI belongs to TI's precision high-speed op amp portfolio, designed specifically for portable video, instrumentation, and data acquisition systems demanding low power, high linearity, and robust video signal integrity.
FAQ
What is the recommended feedback resistor value for LMH6723MA-TI at +2 V/V gain?
The LMH6723MA-TI datasheet specifies 1200 Ω as the optimal feedback resistor for +2 V/V non-inverting configuration with ±5 V supplies. This value delivers near-maximal bandwidth (260 MHz), <0.1 dB gain flatness to 100 MHz, and stable operation without peaking. Using lower values (e.g., 800 Ω) induces measurable gain peaking; higher values reduce bandwidth and increase sensitivity to layout parasitics. LMH6723MA-TI performance is validated with this RF value across all electrical tables.
Can LMH6723MA-TI operate from a single 5 V supply for composite video applications?
Yes, the LMH6723MA-TI supports single 5 V operation for NTSC video. The input must be AC-coupled and level-shifted to center around 2.5 V (VCC/2), and the output can swing ±3.9 V into high-Z loads. For 75 Ω back-terminated cables, configure gain = +2 with 37.5 Ω series output resistor to compensate for 6 dB cable loss while preserving LMH6723MA-TI's 0.03% differential gain performance.
Does LMH6723MA-TI require external compensation components for stability?
No, the LMH6723MA-TI is unity-gain stable and does not require external compensation capacitors. Stability is ensured by proper RF selection (e.g., 1200 Ω for +2 V/V) and adherence to layout guidelines: minimize inverting-input parasitic capacitance, place feedback resistors close to pins 1 and 4, and use local 0.1 µF bypass capacitors on V+ and V−. Deviations from recommended RF or poor high-frequency layout may cause peaking or oscillation-LMH6723MA-TI itself contains no internal compensation network.
What is the maximum capacitive load LMH6723MA-TI can drive directly?
The LMH6723MA-TI should not drive >100 pF capacitive loads directly. For loads exceeding this (e.g., long PCB traces or unterminated cables), a series output resistor (ROUT) is mandatory-values range from 10 Ω (for 100 pF) to 47 Ω (for 1000 pF) per the "Suggested ROUT vs. Cap Load" chart in the datasheet. Adding ROUT mitigates peaking and preserves 0.1 dB bandwidth; omitting it risks instability and degraded settling time. LMH6723MA-TI's closed-loop output resistance is only 0.01 Ω, making it highly sensitive to capacitive loading.
How does LMH6723MA-TI compare to the CLC450 in video line driving applications?
The LMH6723MA-TI is an improved replacement for the CLC450, offering 260 MHz bandwidth (vs. 200 MHz), 600 V/µs slew rate (vs. 500 V/µs), and superior video specs: 0.03% DG (vs. 0.05%) and 0.11° DP (vs. 0.15°). It consumes 1.2 mA (vs. 3.5 mA), enabling longer battery life in portable designs. Both use SOIC-8 packages, but LMH6723MA-TI's current-feedback architecture provides flatter gain vs. frequency and simpler RF-based gain adjustment-LMH6723MA-TI is pin-compatible and functionally superior in all documented video metrics.
LMH6723MA-TI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 370 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- 110 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMH6723MA-TI FAQ
1.How can I place an order for LMH6723MA-TI through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MA-TI 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 LMH6723MA-TI reliable?
The price and inventory of LMH6723MA-TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MA-TI is usually 5 days.
3.What payment methods are accepted for LMH6723MA-TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MA-TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MA-TI?
LMH6723MA-TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MA-TI 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 LMH6723MA-TI?
For technical support, including LMH6723MA-TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MA-TI requirements.
6.How does Aetrix verify that LMH6723MA-TI is sourced from the original manufacturer or authorized distributors?
All LMH6723MA-TI 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 LMH6723MA-TI meets industry standards.
7.What is the process for return or replacement of LMH6723MA-TI?
All LMH6723MA-TI units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MA-TI, 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 LMH6723MA-TI part is unused and in its original packaging.
Return procedure for LMH6723MA-TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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