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Texas Instruments LMH6723MF/NOPB
- Part No.:
- LMH6723MF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6723MF/NOPB.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
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Product details
Overview
LMH6723MF/NOPB from Texas Instruments is a single-channel, current-feedback operational amplifier optimized for high-speed video and portable signal conditioning. It delivers 370 MHz unity-gain bandwidth (−3 dB), 600 V/μs slew rate, and 110 mA linear output current while consuming only 1 mA supply current from ±5 V supplies. It serves as a line driver or A/D converter input buffer in battery-powered video systems requiring NTSC/PAL compliance.
For engineers reviewing the LMH6723MF/NOPB datasheet, LMH6723MF/NOPB pinout, LMH6723MF/NOPB application, or LMH6723MF/NOPB equivalent, key selection criteria include its SOT-23-5 package footprint, current-feedback architecture enabling gain-independent bandwidth tuning, differential gain/phase performance (0.03%, 0.11°), and operation across 4.5–12 V supply range with unity-gain stability.
Technical Context
The LMH6723MF/NOPB employs Texas Instruments' VIP10 complementary bipolar process to achieve high-speed current-feedback operation. Its architecture separates input buffer and gain-setting paths: the inverting input presents ~500 Ω impedance, while feedback resistor (RF) directly controls bandwidth and stability-unlike voltage-feedback op amps where gain-bandwidth product is fixed.
It operates without internal ground reference, supporting both single-supply (4.5–12 V) and split-supply (±2.5 V to ±6 V) configurations. Gain flatness of 0.1 dB up to 100 MHz and low distortion (HD2/HD3 ≤ −63 dBc at 5 MHz) are maintained under 100 Ω load conditions with recommended RF = 1200 Ω for AV = +2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 370 MHz (−3 dB, AV = 1, VOUT = 0.5 VPP): enables wideband signal amplification without gain-dependent bandwidth collapse. |
| Slew Rate | 600 V/μs (typical, ±5 V supply): supports fast transient response for video pulses and high-frequency square waves. |
| Supply Current | 1.2 mA (typical, per amplifier, RL = ∞): allows integration into power-constrained portable designs. |
| Differential Gain / Phase | 0.03% / 0.11° (NTSC, 4.43 MHz, RL = 150 Ω): meets broadcast video fidelity requirements for portable DVD and line drivers. |
| Output Current | ±110 mA (linear sourcing/sinking, RL = ∞): drives heavy capacitive or resistive loads without clipping. |
| Input Voltage Range | ±4.0 V (CMVR, CMRR > 50 dB, ±5 V supply): accommodates large common-mode signals in video front-ends. |
| Gain Flatness | 0.1 dB up to 100 MHz: preserves amplitude integrity across baseband video spectrum. |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size), surface-mount, thermally enhanced for high-speed analog operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUTPUT | Amplifier output | Delivers full linear output swing (±4.1 V typical, RL = ∞) with <0.02 Ω closed-loop output resistance. |
| 2 - V− | Negative supply rail | Accepts −2.5 V to −6 V; no internal ground reference enables true single-supply operation when tied to GND. |
| 3 - +IN | Non-inverting input | High-impedance node (100 kΩ), 1.5 pF capacitance; used for unity-gain follower or non-inverting configurations. |
| 4 - −IN | Inverting input | Low-impedance node (~500 Ω), critical for RF selection; parasitic capacitance must be minimized for stability. |
| 5 - V+ | Positive supply rail | Accepts +2.5 V to +6 V; supports rail-to-rail output swing within supply limits (e.g., 3.7 V high / −3.45 V low, RL = 100 Ω). |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables stable, gain-independent bandwidth control via external RF resistor-no fixed GBW limitation. |
| NTSC/PAL-optimized video performance | 0.03% differential gain and 0.11° phase error ensure minimal color distortion in composite video signal chains. |
| Wide supply range | Operates from 4.5 V to 12 V single supply or ±2.5 V to ±6 V dual supply-ideal for mixed-voltage portable systems. |
| Unity-gain stable | No external compensation required; supports AV = 1 configuration with 370 MHz bandwidth and 0.1 dB flatness to 100 MHz. |
| Low-noise input stage | 4.3 nV/√Hz voltage noise and 6 pA/√Hz current noise preserve SNR in high-gain, wideband signal paths. |
Applications
| Line Driver | A/D Converter Driver |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial cable in portable video equipment (e.g., camcorder output, HDMI source buffer). IC Role / Device Role / Timing Role: High-current, low-distortion buffer isolating video DAC from transmission line impedance mismatch. Use Value: Maintains 0.03% differential gain and 0.11° phase over 4.43 MHz NTSC signal, eliminating hue/saturation shift. |
Use Scenario: Conditioning analog sensor or video signal prior to sampling by 10–12-bit ADC in handheld test gear. IC Role / Device Role / Timing Role: Wideband gain stage with fast settling (30 ns to 0.05%) and low harmonic distortion. Use Value: Delivers −63 dBc HD3 at 5 MHz, preserving effective resolution and minimizing post-conversion filtering. |
| Portable Video System | Single-Supply Video Amplifier |
|
Use Scenario: Signal routing and level-shifting in battery-powered DVD players or video conferencing endpoints. IC Role / Device Role / Timing Role: Low-power, high-fidelity amplifier operating from 5 V single supply with rail-compatible inputs/outputs. Use Value: Draws only 1.2 mA while delivering 110 mA output drive and 0.1 dB gain flatness to 100 MHz. |
Use Scenario: Replacing legacy op amps in existing 5 V video circuits requiring improved speed and lower quiescent current. IC Role / Device Role / Timing Role: Drop-in-capable unity-gain stable amplifier with identical SOT-23-5 footprint and pinout. Use Value: Achieves 370 MHz bandwidth and 600 V/μs slew rate-2× faster than CLC450-without layout change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6723MA/NOPB | SOIC-8 package (4.90 mm × 3.91 mm); same electrical specs but higher thermal resistance (166°C/W vs. 230°C/W). | Better suited for prototyping or board-level testing where hand-soldering or socketing is preferred. | Select LMH6723MA/NOPB when PCB layout allows larger footprint and thermal management is less constrained. |
| CLC450AJE | Lower bandwidth (200 MHz), higher supply current (3.5 mA), no guaranteed differential gain/phase spec. | Limited to non-broadcast video or lower-fidelity analog signal paths where 0.03%/0.11° is not required. | Choose CLC450AJE only if legacy design reuse is mandatory and performance margin can be sacrificed. |
Compared with LMH6723MA/NOPB, the LMH6723MF/NOPB offers superior power efficiency and smaller PCB area but requires careful thermal design due to higher junction-to-ambient resistance; versus CLC450AJE, it delivers verified broadcast-grade video fidelity and 65% lower quiescent current at nearly double the bandwidth.
Availability
LMH6723MF/NOPB is available at Aetrix Electronics and suitable for portable video systems, A/D converter front-ends, and high-speed line drivers requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for LMH6723MF/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 and embedded processing technologies, with decades of expertise in high-speed op amp design and manufacturing.
The LMH6723MF/NOPB belongs to TI's LMH67xx family of current-feedback amplifiers, engineered specifically for portable video, instrumentation, and communications systems demanding low power, high bandwidth, and broadcast-compliant signal fidelity.
FAQ
What is the recommended feedback resistor value for LMH6723MF/NOPB at AV = +2?
The LMH6723MF/NOPB datasheet specifies RF = 1200 Ω as optimal for AV = +2 with ±5 V supplies, delivering near-maximal bandwidth (260 MHz), minimal peaking (<0.1 dB), and stable operation. Lower values (e.g., 800 Ω) increase bandwidth but risk overshoot; higher values reduce bandwidth and degrade gain flatness. RF selection must account for inverting input impedance (~500 Ω) to avoid instability.
Can LMH6723MF/NOPB operate from a single 5 V supply?
Yes, LMH6723MF/NOPB supports single-supply operation from 4.5 V to 12 V. With 5 V supply (V+ = 5 V, V− = GND), it delivers output swing of ~1.35 V to ~3.7 V (RL = 100 Ω) and maintains 0.03% differential gain at 4.43 MHz. Input common-mode range extends to ±1.45 V, allowing AC-coupled or DC-biased signal interfaces without level-shifting.
Does LMH6723MF/NOPB require external compensation?
No, LMH6723MF/NOPB is unity-gain stable and does not require external compensation components. Its current-feedback architecture inherently avoids phase-margin degradation with gain changes. Stability is ensured by selecting appropriate RF (e.g., 1200 Ω for AV = +2) and minimizing parasitic capacitance at the −IN pin-no capacitor across RF or added to inputs is needed.
What is the maximum capacitive load LMH6723MF/NOPB can drive directly?
LMH6723MF/NOPB should not drive >10 pF capacitive load directly without series output resistance. For loads >10 pF, a series ROUT (e.g., 24 Ω for 100 pF, 48 Ω for 10 pF) is recommended to suppress peaking and maintain 0.5 dB gain flatness. The device's closed-loop output resistance is just 0.02 Ω, making it highly sensitive to load capacitance-induced phase shift.
How does LMH6723MF/NOPB compare to voltage-feedback op amps in bandwidth scalability?
Unlike voltage-feedback op amps whose bandwidth drops inversely with gain (GBW constant), LMH6723MF/NOPB uses current-feedback architecture: bandwidth remains largely independent of closed-loop gain when RF is adjusted per gain setting. This allows 370 MHz at AV = 1 and ~260 MHz at AV = +2-enabling consistent high-speed performance across multiple gain configurations without sacrificing stability.
LMH6723MF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- 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:
- SOT-23-5
LMH6723MF/NOPB FAQ
1.How can I place an order for LMH6723MF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MF/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 LMH6723MF/NOPB reliable?
The price and inventory of LMH6723MF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MF/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6723MF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MF/NOPB?
LMH6723MF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MF/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 LMH6723MF/NOPB?
For technical support, including LMH6723MF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MF/NOPB requirements.
6.How does Aetrix verify that LMH6723MF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6723MF/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 LMH6723MF/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6723MF/NOPB?
All LMH6723MF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MF/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 LMH6723MF/NOPB part is unused and in its original packaging.
Return procedure for LMH6723MF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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