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Texas Instruments LMH6723 MDC
- Part No.:
- LMH6723 MDC
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- Die
- Datasheet:
-
LMH6723 MDC.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT DIESALE
- Quantity:
- Payment:
- Shipping:
Inventory:1,166
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Product details
Overview
LMH6723 MDC 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. Its 0.03% differential gain and 0.11° differential phase meet NTSC/PAL video line driver requirements.
For engineers reviewing the LMH6723 MDC datasheet, LMH6723 MDC pinout, LMH6723 MDC application, or LMH6723 MDC equivalent, this page provides verified electrical specifications, SOT-23 and SOIC package mapping, video-grade distortion performance, and validated alternatives for portable A/D driver, line driver, and portable DVD signal chain designs.
Technical Context
The LMH6723 MDC employs Texas Instruments' VIP10 complementary bipolar process to achieve current-feedback architecture with low input bias current (±4 µA), high input impedance at non-inverting node (100 kΩ), and low inverting-input resistance (~500 Ω). Its open-loop gain rolls off at ~370 MHz with −3 dB point at unity gain, enabling stable operation at gains of +1 to +5 V/V using fixed RF values (e.g., 1200 Ω).
It supports dual-supply (±2.5 V to ±6 V) and single-supply (4.5 V to 12 V) configurations without internal ground reference. The device maintains 0.1 dB gain flatness to 100 MHz and delivers <−63 dBc harmonic distortion at 5 MHz - critical for baseband video and high-fidelity analog front ends.
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 up to UHF without gain peaking. |
| Slew Rate | 600 V/μs (typical, ±5 V supply): supports fast transient response for 4-V step signals with ≤2.5 ns rise/fall time. |
| Supply Current | 1.2 mA (typical, per amplifier, RL = ∞): allows battery-powered portable video systems with minimal thermal load. |
| Differential Gain / Phase | 0.03% / 0.11° (NTSC, 4.43 MHz, RL = 150 Ω): meets broadcast video fidelity standards for color accuracy. |
| Output Current | ±110 mA linear sourcing/sinking (RL = ∞): drives 100 Ω loads directly without external buffers in line-driver applications. |
| Input Voltage Range | ±4.0 V common-mode (CMRR > 50 dB): supports rail-to-rail input operation within ±5 V supply rails. |
| Harmonic Distortion | HD2 = −65 dBc, HD3 = −63 dBc (2 VPP, 5 MHz): preserves signal integrity in high-resolution A/D converter front ends. |
Pinout & Package
LMH6723 MDC is available in two industry-standard packages: 5-pin SOT-23 (DBV, 2.90 mm × 1.60 mm) and 8-pin SOIC (D08A, 4.90 mm × 3.91 mm). Both variants share identical pin functions and electrical characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SOT-23) / 1 (SOIC) | OUTPUT | Amplifier output node; capable of ±110 mA linear drive into 100 Ω loads with <0.1 dB gain flatness to 100 MHz. |
| 2 (SOT-23) / 2 (SOIC) | −IN | Inverting input terminal; presents ~500 Ω input resistance, requiring matched feedback resistor (RF = 1200 Ω typical) for stability. |
| 3 (SOT-23) / 3 (SOIC) | +IN | Non-inverting input terminal; high-impedance (100 kΩ), low-capacitance (1.5 pF) node suitable for high-frequency signal routing. |
| 4 (SOT-23) / 4 (SOIC) | V− | Negative supply rail connection; supports split-supply operation down to −6.75 V absolute max rating. |
| 5 (SOT-23) / 7 (SOIC) | V+ | Positive supply rail connection; operates from +4.5 V to +12 V single supply or ±2.5 V to ±6 V dual supply. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth across gains +1 to +5 V/V via fixed RF selection (e.g., 1200 Ω), unlike voltage-feedback op amps. |
| Video-optimized linearity | 0.03% differential gain and 0.11° differential phase ensure broadcast-quality NTSC/PAL signal reproduction without color shift. |
| Low-power high-speed operation | 370 MHz bandwidth and 600 V/μs slew rate achieved at only 1.2 mA supply current - ideal for portable battery-powered systems. |
| Wide supply range | Operates from 4.5 V to 12 V single supply or ±2.5 V to ±6 V dual supply, eliminating need for dedicated ±5 V rails in compact designs. |
| Unity-gain stable | No external compensation required; stable at AV = +1 with RF = 2000 Ω, simplifying design for buffer and gain-of-one applications. |
Applications
| Line Driver | A/D Driver |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial video cables in portable DVD players and digital camcorders. IC Role / Device Role / Timing Role: High-current, low-distortion buffer amplifying composite video or Y/C signals before transmission. Use Value: Maintains 0.03% differential gain and 0.11° phase error over full NTSC bandwidth, preserving color fidelity without external equalization. |
Use Scenario: Conditioning analog sensor outputs prior to sampling by 10–12-bit ADCs in handheld test equipment. IC Role / Device Role / Timing Role: Wideband gain stage with 370 MHz bandwidth and <−63 dBc HD3, minimizing aperture uncertainty and SNR degradation. Use Value: Delivers 110 mA linear output current to drive ADC input capacitance and series termination resistors without settling-time penalty. |
| Portable Video | Portable DVD |
|
Use Scenario: Signal path in battery-powered video monitors and HDMI-to-analog converters with integrated scaling. IC Role / Device Role / Timing Role: Low-power, high-SR amplifier for RGB or component video buffering with DC-coupled output swing. Use Value: 1.2 mA quiescent current and 0.1 dB gain flatness to 100 MHz enable extended runtime and artifact-free display rendering. |
Use Scenario: Output stage in portable DVD players feeding composite or S-video outputs to TVs or recording devices. IC Role / Device Role / Timing Role: Final-stage video amplifier delivering full-swing NTSC/PAL signals with minimal group delay variation. Use Value: 600 V/μs slew rate ensures <2.5 ns rise time on 4-V steps, preventing edge ringing and chroma timing skew in playback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6720MA/NOPB | Lower bandwidth (200 MHz), higher supply current (2.5 mA), same SOT-23/SOIC footprint. | Not suitable for 370 MHz unity-gain or 600 V/μs slew-rate requirements; acceptable for lower-speed portable video. | Select LMH6720 when power budget allows higher ICC and bandwidth demand is ≤200 MHz. |
| THS3201DGN | Higher slew rate (3000 V/μs), wider supply range (±5 V to ±15 V), but consumes 12 mA and lacks video-optimized DG/DP specs. | Overqualified for NTSC/PAL line driving; better suited for pulse amplification or wide-dynamic-range instrumentation. | Choose THS3201 only when extreme slew rate and output voltage swing (>±10 V) outweigh power and video-linearity constraints. |
Compared with LMH6723 MDC, LMH6720MA offers reduced speed and higher power, making it a cost-effective downgrade for less demanding video paths; THS3201DGN trades video fidelity and efficiency for raw speed and voltage headroom - unsuitable as direct replacement in broadcast-compliant designs.
Availability
LMH6723 MDC is available at Aetrix Electronics and suitable for portable video, A/D driver, and line driver applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LMH6723 MDC 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 LMH6723 MDC belongs to TI's LMH high-speed current-feedback amplifier family, engineered specifically for portable video, instrumentation, and communications systems where bandwidth, power efficiency, and video-grade linearity are co-optimized.
FAQ
What is the recommended feedback resistor value for LMH6723 MDC at a gain of +2 V/V?
The LMH6723 MDC datasheet specifies RF = 1200 Ω as the recommended feedback resistor for stable +2 V/V operation with ±5 V supplies. This value balances bandwidth (260 MHz, −3 dB), gain flatness (0.1 dB to 100 MHz), and minimal peaking. Deviating significantly - especially reducing RF below 800 Ω - risks overshoot and instability due to the current-feedback topology's sensitivity to feedback impedance.
Does LMH6723 MDC support single-supply operation, and what is the minimum supply voltage?
Yes, LMH6723 MDC supports true single-supply operation from 4.5 V to 12 V. At 4.5 V, it maintains functional performance including 210 MHz small-signal bandwidth (±2.5 V equiv.), 275 V/μs slew rate, and 70 mA linear output current. Input common-mode range extends to within 1.45 V of either rail, enabling DC-coupled signal handling in low-voltage portable systems.
What is the maximum capacitive load LMH6723 MDC can drive without external compensation?
LMH6723 MDC can drive up to 10 pF directly without significant peaking. For larger loads (e.g., 47–100 pF), the datasheet recommends adding a series output resistor (ROUT); values range from 30 Ω (47 pF) to 48 Ω (100 pF) to limit peaking to ≤0.5 dB. This ROUT placement isolates the amplifier's low-output-impedance stage from reactive loading, preserving stability and settling behavior.
How does LMH6723 MDC compare to CLC450 in terms of video performance?
LMH6723 MDC is explicitly positioned as an improved replacement for CLC450. It achieves superior differential gain (0.03% vs. 0.05%) and phase (0.11° vs. 0.15°), lower distortion (HD3 = −63 dBc vs. −58 dBc at 5 MHz), and higher slew rate (600 V/μs vs. 500 V/μs), all while drawing half the supply current (1.2 mA vs. 2.5 mA). These improvements directly enhance color fidelity and dynamic range in NTSC/PAL systems.
Is LMH6723 MDC pin-compatible with LMH6724, and can they be interchanged on the same PCB?
No - LMH6723 MDC (single-channel) and LMH6724 (dual-channel) are not pin-compatible. LMH6723 uses 5-pin SOT-23 or 8-pin SOIC with pins: OUTPUT, −IN, +IN, V−, V+. LMH6724 uses 8-pin SOIC with separate channels: OUT A, −IN A, +IN A, V−, V+, −IN B, +IN B, OUT B. Interchanging them requires PCB redesign; no shared pinout exists between the two part numbers.
LMH6723 MDC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Diesale
LMH6723 MDC FAQ
1.How can I place an order for LMH6723 MDC through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723 MDC 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 LMH6723 MDC reliable?
The price and inventory of LMH6723 MDC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723 MDC is usually 5 days.
3.What payment methods are accepted for LMH6723 MDC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723 MDC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723 MDC?
LMH6723 MDC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723 MDC 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 LMH6723 MDC?
For technical support, including LMH6723 MDC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723 MDC requirements.
6.How does Aetrix verify that LMH6723 MDC is sourced from the original manufacturer or authorized distributors?
All LMH6723 MDC 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 LMH6723 MDC meets industry standards.
7.What is the process for return or replacement of LMH6723 MDC?
All LMH6723 MDC units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723 MDC, 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 LMH6723 MDC part is unused and in its original packaging.
Return procedure for LMH6723 MDC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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