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Texas Instruments LMH6723MA
- Part No.:
- LMH6723MA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6723MA.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,987
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Product details
Overview
LMH6723MA from Texas Instruments is a single-channel, current-feedback operational amplifier in SOIC-8 package, delivering 370 MHz unity-gain bandwidth (−3 dB), 600 V/μs slew rate, and 110 mA linear output current at ±5 V supplies - optimized for high-fidelity video line driving and A/D converter buffering.
For engineers reviewing the LMH6723MA datasheet, LMH6723MA pinout, LMH6723MA application, or LMH6723MA equivalent, key selection criteria include its current-feedback architecture, 0.03% differential gain / 0.11° differential phase (NTSC/PAL), 0.1 dB gain flatness to 100 MHz, and operation across 4.5–12 V supply range with only 1.2 mA quiescent current per amplifier.
Technical Context
The LMH6723MA uses Texas Instruments' VIP10 complementary bipolar process to implement a true current-feedback op amp topology, featuring a low-impedance, high-bandwidth buffer at the inverting input (RIN− ≈ 500 Ω) and high-impedance non-inverting input (RIN+ = 100 kΩ). Its closed-loop bandwidth remains stable across gains +1 to +5 V/V when using appropriate feedback resistors (e.g., 1.2 kΩ at AV = +2).
Unlike voltage-feedback amplifiers, the LMH6723MA's bandwidth is primarily set by feedback resistor value-not gain-enabling flat frequency response up to 100 MHz at AV = +2, with <2.5 ns rise/fall time and 30 ns settling to 0.05% for 2 V step. It operates from single (4.5–12 V) or split (±2.5 to ±6 V) supplies without internal ground reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 370 MHz (−3 dB, AV = 1, VOUT = 0.2 VPP): enables wideband signal conditioning up to UHF without gain-dependent bandwidth loss. |
| Large-Signal Bandwidth | 260 MHz (−3 dB, AV = +2, VOUT = 0.5 VPP): supports full-swing HD video signals with minimal distortion. |
| Slew Rate | 600 V/μs (typical): ensures faithful reproduction of fast transient video edges and pulse waveforms. |
| Differential Gain / Phase | 0.03% / 0.11° (NTSC, 4.43 MHz, RL = 150 Ω): meets broadcast-grade video fidelity requirements for portable DVD and analog line drivers. |
| Supply Current | 1.2 mA (±5 V, RL = ∞): enables battery-powered portable video systems with extended runtime. |
| Output Current | ±110 mA (linear sourcing/sinking): drives 100 Ω loads directly without external buffers, reducing BOM count. |
| Input Voltage Range | ±4.0 V (CMVR, CMRR > 50 dB): supports rail-to-rail input operation with ±5 V supplies in single-ended video paths. |
Pinout & Package
LMH6723MA is housed in an 8-pin SOIC (D08A) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012 footprint and 1.27 mm pitch. Thermal resistance is 166°C/W (junction-to-ambient).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplifier output node; capable of ±110 mA linear drive into 100 Ω loads. |
| 2 | Inverting Input (−) | Low-impedance current-summing node (≈500 Ω); sets closed-loop bandwidth via feedback resistor. |
| 3 | Non-inverting Input (+) | High-impedance voltage-input node (100 kΩ); provides reference for differential input stage. |
| 4 | Negative Supply (V−) | Return path for split-supply operation; supports −2.5 V to −6 V rails or ground in single-supply mode. |
| 5 | Positive Supply (V+) | Power input for ±2.5 to ±6 V or +4.5 to +12 V operation; requires local 100 nF bypassing. |
| 6 | No Connect (N/C) | Internally unused; must be left floating or tied to ground per layout best practices. |
| 7 | No Connect (N/C) | Internally unused; no electrical function; avoid routing signals nearby to minimize coupling. |
| 8 | No Connect (N/C) | Internally unused; electrically isolated; PCB pad may be omitted or grounded for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables gain-independent bandwidth control via feedback resistor selection (e.g., 1.2 kΩ for AV = +2), simplifying high-speed design. |
| 0.1 dB gain flatness to 100 MHz | Preserves amplitude integrity across baseband video spectrum (DC–10 MHz) and beyond, critical for composite/S-video fidelity. |
| Unity-gain stable | Operates reliably at AV = 1 without external compensation, supporting buffer and cable-driver configurations without instability risk. |
| Single-supply capability (4.5–12 V) | Eliminates need for dual supplies in portable systems; supports direct interface to 5 V logic and ADC front-ends. |
| Low input bias current mismatch | IBN = ±2 µA, IBI = 0.4 µA (typ) minimizes offset drift in high-source-impedance video termination networks. |
Applications
| Video Line Driver | A/D Converter Driver |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial cables in portable DVD players or set-top box video outputs. IC Role / Device Role / Timing Role: High-speed current-feedback buffer with 0.03% DG/0.11° DP, maintaining NTSC/PAL color fidelity over 10 m cable runs. Use Value: Eliminates external reconstruction filters and passive equalization; achieves broadcast-grade video performance with minimal board space. |
Use Scenario: Conditioning analog sensor or video signals prior to sampling by 10–12-bit ADCs in industrial imaging systems. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver (30 ns to 0.05%) ensuring full-resolution digitization without aperture error or harmonic distortion. Use Value: Enables >10 MSPS sampling without missing codes; 4.3 nV/√Hz input voltage noise preserves SNR in precision acquisition chains. |
| Portable Video Interface | High-Speed Signal Buffer |
|
Use Scenario: Level-shifting and impedance matching between mobile SoC video outputs and display panels or HDMI transmitters. IC Role / Device Role / Timing Role: Single-supply (5 V) buffer with rail-compatible input/output swing and 110 mA drive strength for active cable adapters. Use Value: Reduces power consumption vs. legacy solutions (e.g., CLC450) while improving differential phase accuracy by 3×. |
Use Scenario: Isolating sensitive clock or data lines in FPGA-based test equipment where signal integrity degrades due to trace capacitance. IC Role / Device Role / Timing Role: Low-output-impedance (0.01 Ω) repeater that maintains edge fidelity (<2.5 ns rise time) across 10 cm FR4 traces. Use Value: Prevents intersymbol interference in 100+ Mbps digital video links; supports clean 370 MHz small-signal bandwidth for jitter-sensitive paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6723MF | SOT-23-5 package (2.90 mm × 1.60 mm); identical electrical specs but lower thermal resistance (230°C/W) and reduced PCB footprint. | Better suited for ultra-compact portable designs where board area is constrained; not pin-compatible with SOIC-8. | Select LMH6723MF when size and weight are prioritized over thermal margin and ease of prototyping. |
| CLC450ID | Legacy current-feedback op amp; 200 MHz GBW, 400 V/μs slew rate, higher 3.5 mA supply current, and inferior 0.05% DG/0.2° DP. | Compatible with existing CLC450 layouts but delivers lower video fidelity and higher power draw. | Choose CLC450ID only for legacy redesigns requiring drop-in replacement without layout change; LMH6723MA offers measurable video performance uplift. |
Compared with LMH6723MF, the LMH6723MA trades compactness for superior thermal performance and solderability; versus CLC450ID, it delivers 85% higher bandwidth, 50% faster slew rate, and tighter video specifications - making it the preferred choice for new high-fidelity portable video designs.
Availability
LMH6723MA is available at Aetrix Electronics and suitable for portable video interfaces, A/D converter front-ends, and high-speed line driver applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.
Supply support for LMH6723MA 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 amplifiers and precision signal chain solutions.
The LMH6723MA belongs to TI's LMH high-speed current-feedback op amp family, designed specifically for portable video, instrumentation, and communications systems demanding wide bandwidth, low power, and broadcast-grade video fidelity.
FAQ
What is the recommended feedback resistor value for LMH6723MA at a gain of +2 V/V?
The LMH6723MA datasheet specifies 1.2 kΩ as the recommended feedback resistor (RF) for AV = +2 V/V with ±5 V supplies. This value balances bandwidth (260 MHz), gain flatness (0.1 dB to 100 MHz), and stability. Using RF = 800 Ω increases peaking; RF = 2 kΩ reduces bandwidth. The LMH6723MA requires RF ≥ 2000 Ω only in unity-gain buffer configuration.
Does LMH6723MA support single-supply operation?
Yes, the LMH6723MA operates from a single supply of 4.5 V to 12 V. Its input common-mode range extends to ±4.0 V (with ±5 V supplies), and output swings within 0.3 V of rails into 100 Ω loads. For single-supply use, bias the non-inverting input at mid-rail (e.g., 2.5 V) and AC-couple inputs/outputs as needed - no internal ground reference is required.
How does LMH6723MA compare to voltage-feedback op amps in video applications?
The LMH6723MA's current-feedback architecture provides constant bandwidth across gains +1 to +5 V/V - unlike voltage-feedback op amps whose bandwidth drops inversely with gain. This yields superior 100 MHz gain flatness and 0.03% differential gain for NTSC/PAL, enabling sharper image edges and accurate color reproduction without complex compensation networks.
Can LMH6723MA drive a 75 Ω video load directly?
Yes, the LMH6723MA delivers ±110 mA linear output current and features a low 0.01 Ω closed-loop output resistance, allowing direct 75 Ω termination without external series resistors. When driving 75 Ω, output swing is ±3.5 V (high) and ±3.1 V (low) at ±5 V supplies - sufficient for 1 VPP composite video with headroom.
What is the thermal performance of LMH6723MA in SOIC-8 package?
The LMH6723MA in SOIC-8 (D08A) has a junction-to-ambient thermal resistance (RθJA) of 166°C/W. At 1.2 mA supply current and ±5 V, dissipation is ~12 mW - resulting in <2°C junction rise above ambient under typical conditions. For sustained high-output-current operation, use copper pour and thermal vias per TI's layout guidelines.
LMH6723MA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SOIC
LMH6723MA FAQ
1.How can I place an order for LMH6723MA through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MA 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 reliable?
The price and inventory of LMH6723MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MA is usually 5 days.
3.What payment methods are accepted for LMH6723MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MA?
LMH6723MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MA 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?
For technical support, including LMH6723MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MA requirements.
6.How does Aetrix verify that LMH6723MA is sourced from the original manufacturer or authorized distributors?
All LMH6723MA 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 meets industry standards.
7.What is the process for return or replacement of LMH6723MA?
All LMH6723MA units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MA, 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 part is unused and in its original packaging.
Return procedure for LMH6723MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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