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Texas Instruments LMH6723MAX
- Part No.:
- LMH6723MAX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6723MAX.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,076
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Product details
Overview
LMH6723MAX 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 0.03% differential gain at 4.43 MHz for NTSC video, operating from ±5 V or single 4.5–12 V supplies in an SOIC-8 package.
For engineers reviewing the LMH6723MAX datasheet, LMH6723MAX pinout, LMH6723MAX application, or LMH6723MAX equivalent, key selection criteria include its current-feedback architecture, 1 mA quiescent supply current, 110 mA linear output drive, and verified performance in A/D driver and line driver roles across −40°C to +85°C.
Technical Context
The LMH6723MAX uses Texas Instruments' VIP10 complementary bipolar process to implement a true current-feedback topology with low-impedance inverting input (~500 Ω) and high-impedance non-inverting input (~100 kΩ). Its bandwidth remains stable across gains of +1 to +5 V/V when paired with appropriate feedback resistors (e.g., 1.2 kΩ at AV = +2).
Unlike voltage-feedback op amps, it exhibits gain-bandwidth independence: small-signal bandwidth is 260 MHz at AV = +2, 370 MHz at AV = +1, and large-signal bandwidth reaches 110 MHz (VOUT = 4 VPP), enabling fast settling (30 ns to 0.05%) and minimal distortion (−65 dBc HD2 at 5 MHz).
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 loss. |
| Slew Rate | 600 V/μs (4 V step): supports clean reproduction of fast transient signals in video and data acquisition. |
| Differential Gain / Phase | 0.03% / 0.11° (NTSC, RL = 150 Ω, 4.43 MHz): meets broadcast-grade video fidelity requirements. |
| Supply Current | 1.2 mA per amplifier (±5 V, RL = ∞): enables battery-powered portable designs with minimal power overhead. |
| Output Drive | 110 mA linear sourcing (RL = ∞, ±5 V): drives heavy loads including 75 Ω video lines and ADC inputs without clipping. |
| Input Voltage Range | ±4.0 V common-mode (CMRR > 50 dB): allows rail-to-rail input operation with ±5 V supplies. |
| Operating Temp | −40°C to +85°C: qualified for industrial and automotive-adjacent embedded systems. |
Pinout & Package
LMH6723MAX is housed in an 8-pin SOIC (D08A) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC 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 sourcing/sinking up to ±110 mA with <0.01 Ω closed-loop output impedance. |
| 2 | Inverting Input (−IN) | Low-impedance current-summing node (~500 Ω); sets feedback path and gain via external RF resistor. |
| 3 | Non-inverting Input (+IN) | High-impedance voltage-input node (~100 kΩ); provides reference for differential input stage. |
| 4 | Negative Supply (V−) | Ground or negative rail connection; supports split-supply (±2.5 V to ±6 V) or single-supply (4.5–12 V) operation. |
| 5 | Positive Supply (V+) | Positive rail connection; decoupling with 100 nF ceramic capacitor recommended near pin. |
| 6–8 | No Connect (N/C) | Unused pins; must be left floating or tied to ground per layout best practices to minimize parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth across gain settings +1 to +5 V/V using fixed RF (e.g., 1.2 kΩ), simplifying high-speed gain staging. |
| 0.1 dB gain flatness to 100 MHz | Ensures amplitude consistency across baseband video and broadband instrumentation signals without post-compensation. |
| Unity-gain stable | Operates reliably at AV = +1 without external compensation, supporting buffer and cable-driver configurations. |
| Low input bias current mismatch | IBN = −2 µA, IBI = +0.4 µA (±5 V, typ): minimizes offset drift in precision DC-coupled signal chains. |
| ESD robustness | HBM rating of 2000 V: withstands standard handling environments without additional protection circuitry. |
Applications
| Video Line Driver | A/D Converter Driver |
|---|---|
Use Scenario: Driving 75 Ω coaxial video cables in portable DVD players or security camera modules. IC Role / Device Role / Timing Role: High-fidelity buffer amplifier with low differential gain/phase error and fast settling to preserve composite video timing integrity. Use Value: Delivers 0.03% differential gain and 0.11° phase error at 4.43 MHz, meeting NTSC broadcast standards without external calibration. | Use Scenario: Conditioning analog sensor outputs before sampling by 10–14-bit SAR or pipeline ADCs. IC Role / Device Role / Timing Role: Wideband, low-noise driver that settles within 30 ns to 0.05%, minimizing aperture uncertainty in high-speed digitization. Use Value: 370 MHz bandwidth and 600 V/μs slew rate ensure full-scale transitions are captured without slewing-induced distortion. |
| Portable Instrumentation Front-End | High-Speed Signal Routing |
Use Scenario: Amplifying low-amplitude, wideband signals in handheld oscilloscopes or spectrum analyzers. IC Role / Device Role / Timing Role: Low-power, high-SR amplifier enabling real-time signal capture with 1 mA supply current and 2.5 ns rise time. Use Value: Combines 260 MHz small-signal bandwidth and 110 mA output drive to interface directly with 50 Ω test equipment inputs. | Use Scenario: Multiplexing or switching between multiple high-frequency signal sources in automated test equipment. IC Role / Device Role / Timing Role: Fast-settling, low-distortion gain block used in reconfigurable signal paths with minimal group delay variation. Use Value: −65 dBc HD2 at 5 MHz and 0.1 dB flatness to 100 MHz maintain signal fidelity during dynamic routing changes. |
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 |
|---|---|---|---|
| LMH6723MF/NOPB | SOT-23-5 package (2.90 mm × 1.60 mm); identical electrical specs but lower thermal resistance (230°C/W) and reduced PCB area. | Better suited for space-constrained portable devices where SOIC-8 footprint is prohibitive. | Select LMH6723MF/NOPB when board area or thermal mass is limited; verify layout for high-frequency stability due to smaller pad capacitance. |
| THS3201DR | Higher slew rate (3000 V/μs), wider bandwidth (1.8 GHz), but consumes 12.5 mA; requires careful layout and higher supply voltage (±5 V min). | Targeted at ultra-high-speed applications (e.g., radar pulse amplification) where LMH6723MAX's 1 mA power budget is insufficient. | Choose THS3201DR only when >1 GHz bandwidth or >2000 V/μs slew is mandatory; avoid for battery-powered or thermally constrained systems. |
Compared with LMH6723MF/NOPB, LMH6723MAX offers superior thermal dissipation (166 vs. 230°C/W) and easier prototyping via SOIC-8; versus THS3201DR, it trades raw speed for 12× lower quiescent current and simpler supply design-ideal for portable video and mid-speed data acquisition.
Availability
LMH6723MAX is available at Aetrix Electronics and suitable for video line driving, A/D converter interfacing, and portable instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LMH6723MAX 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 signal chain solutions.
The LMH6723MAX belongs to TI's LMH high-speed current-feedback op amp family, designed specifically for portable, low-power, wideband applications including video, communications, and test equipment where bandwidth, power efficiency, and video fidelity are jointly critical.
FAQ
What is the recommended feedback resistor value for LMH6723MAX at a gain of +2 V/V?
The LMH6723MAX 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-deviating significantly causes peaking or roll-off. LMH6723MAX performance was characterized using this exact configuration, and TI provides RF vs. gain charts to guide adjustments for other gains.
Can LMH6723MAX operate from a single 5-V supply?
Yes, LMH6723MAX supports single-supply operation from 4.5 V to 12 V. At 5 V, it delivers 210 MHz small-signal bandwidth, 400 V/μs slew rate, and ±1.45 V common-mode input range. Output swing is ±1.55 V (RL = ∞) or 1.35 V to −1.25 V (RL = 100 Ω), making LMH6723MAX suitable for rail-to-rail signal conditioning in 5-V systems without level-shifting.
Does LMH6723MAX require external compensation for unity-gain stability?
No, LMH6723MAX is unity-gain stable and does not require external compensation capacitors. Its current-feedback architecture and internal design ensure stable operation at AV = +1 with a 2 kΩ feedback resistor. The LMH6723MAX datasheet confirms unity-gain stability across temperature and supply variations, eliminating the need for trial-and-error compensation networks.
What is the maximum capacitive load LMH6723MAX can drive without instability?
LMH6723MAX can safely drive up to 100 pF with a series output resistor (ROUT) of 24 Ω (per TI's "Suggested ROUT vs. CL" chart). Without ROUT, capacitive loading degrades phase margin and may cause ringing or oscillation. For 100 pF, LMH6723MAX requires ROUT ≈ 24 Ω to limit peaking to ≤0.5 dB-this value is validated in TI's application notes and typical performance curves.
How does LMH6723MAX compare to legacy CLC450 in video applications?
LMH6723MAX is explicitly positioned as an improved replacement for CLC450, offering 370 MHz vs. 200 MHz bandwidth, 600 V/μs vs. 1000 V/μs slew (but with lower distortion), and 0.03% differential gain vs. 0.05%-all while consuming 1 mA vs. 5.5 mA. LMH6723MAX achieves better NTSC fidelity and 82% lower power, making it the preferred choice for modern portable video systems where thermal and battery life constraints dominate.
LMH6723MAX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
LMH6723MAX FAQ
1.How can I place an order for LMH6723MAX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MAX 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 LMH6723MAX reliable?
The price and inventory of LMH6723MAX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MAX is usually 5 days.
3.What payment methods are accepted for LMH6723MAX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MAX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MAX?
LMH6723MAX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MAX 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 LMH6723MAX?
For technical support, including LMH6723MAX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MAX requirements.
6.How does Aetrix verify that LMH6723MAX is sourced from the original manufacturer or authorized distributors?
All LMH6723MAX 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 LMH6723MAX meets industry standards.
7.What is the process for return or replacement of LMH6723MAX?
All LMH6723MAX units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MAX, 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 LMH6723MAX part is unused and in its original packaging.
Return procedure for LMH6723MAX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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