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Texas Instruments LMH6723MF
- Part No.:
- LMH6723MF
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6723MF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,937
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Product details
Overview
LMH6723MF from Texas Instruments is a single-channel, current-feedback operational amplifier in SOT-23-5 package, delivering 370 MHz unity-gain bandwidth (−3 dB), 600 V/μs slew rate, and 1 mA supply current at ±5 V. It achieves 0.03% differential gain and 0.11° differential phase for NTSC/PAL video signals and supports portable video, A/D driver, and line driver applications with rail-to-rail output capability into 100 Ω.
For engineers reviewing the LMH6723MF datasheet, LMH6723MF pinout, LMH6723MF application, or LMH6723MF equivalent, this page provides verified specifications, validated SOT-23-5 pin mapping, confirmed video and high-speed analog signal chain use cases, and two technically documented alternative parts with explicit functional and application-level differences.
Technical Context
The LMH6723MF uses Texas Instruments' VIP10 complementary bipolar process to implement a current-feedback architecture with a 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 using appropriate feedback resistors (e.g., 1.2 kΩ at AV = +2).
It operates from ±2.5 V to ±6 V (4.5–12 V single-supply), requires no internal ground reference, and maintains 0.1 dB gain flatness to 100 MHz. The device is unity-gain stable and optimized for driving capacitive loads via external series output resistance (ROUT), with recommended values tabulated up to 1000 pF.
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 without gain-dependent bandwidth collapse. |
| Slew Rate | 600 V/μs (4 V step): supports fast transient response in video and pulse amplification without distortion. |
| Differential Gain / Phase | 0.03% / 0.11° (RL = 150 Ω, 4.43 MHz): meets broadcast-grade NTSC/PAL video fidelity requirements. |
| Supply Current | 1.2 mA per amplifier (±5 V, RL = ∞): enables battery-powered portable designs with minimal quiescent power. |
| Output Current | ±110 mA linear sourcing/sinking (RL = 100 Ω): drives heavy loads including coaxial cables and ADC inputs directly. |
| Input Voltage Range | ±4.0 V common-mode (CMRR > 50 dB): allows operation near rails in single-supply configurations with high rejection. |
| Small-Signal BW | 260 MHz (AV = +2, VOUT = 0.5 VPP): sustains high closed-loop bandwidth for precision high-speed gain stages. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm max height, gull-wing leads, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUTPUT | Amplifier output | Low-impedance voltage source (0.01 Ω closed-loop); requires ROUT for capacitive load stability. |
| 2 - V− | Negative supply | Reference for biasing; accepts −2.5 V to −6 V or ground in single-supply mode. |
| 3 - +IN | Non-inverting input | High-impedance node (~100 kΩ); used for signal injection in follower or non-inverting configurations. |
| 4 - −IN | Inverting input | Low-impedance current-summing node (~500 Ω); sets feedback path impedance and gain accuracy. |
| 5 - V+ | Positive supply | Reference for biasing; accepts +2.5 V to +6 V or 4.5–12 V in single-supply mode. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth over gain range +1 to +5 V/V via RF tuning-unlike voltage-feedback op amps. |
| 0.1 dB gain flatness to 100 MHz | Ensures minimal amplitude distortion in wideband video and communication baseband signals. |
| Unity-gain stable | Operates reliably at AV = 1 without external compensation, simplifying design for buffer and gain-of-one stages. |
| Single-supply operation (4.5–12 V) | Eliminates need for dual supplies in portable systems while maintaining full dynamic range and CMVR. |
| Low input capacitance (1.5 pF) | Minimizes high-frequency phase shift and instability when driving reactive sources or filters. |
Applications
| Portable Video Signal Chain | A/D Converter Driver |
|---|---|
|
Use Scenario: Driving composite video signals from portable DVD players or camcorders to 75 Ω coaxial outputs. IC Role / Device Role / Timing Role: High-fidelity video buffer with precise differential gain/phase matching and minimal group delay variation. Use Value: Preserves NTSC/PAL color fidelity (0.03%/0.11°) and delivers 110 mA into 75 Ω loads without clipping or overshoot. |
Use Scenario: Conditioning analog sensor outputs before sampling by 10–12-bit SAR or pipeline ADCs. IC Role / Device Role / Timing Role: Fast-settling gain stage with 30 ns to 0.05% settling time and low noise (4.3 nV/√Hz). Use Value: Enables accurate high-speed digitization of transducer signals up to 100 MHz without aperture uncertainty degradation. |
| High-Speed Line Driver | Battery-Powered Test Equipment Front-End |
|
Use Scenario: Transmitting differential or single-ended analog waveforms across PCB traces or short cables in automated test gear. IC Role / Device Role / Timing Role: Low-distortion, high-output-current driver with 600 V/μs slew rate and −65 dBc HD2 at 5 MHz. Use Value: Maintains signal integrity over 10 cm FR-4 traces at >50 MHz while consuming only 1.2 mA from ±5 V rails. |
Use Scenario: Signal amplification in handheld oscilloscope probes or portable spectrum analyzers. IC Role / Device Role / Timing Role: Low-power, wideband gain block supporting 370 MHz bandwidth and 1 mA quiescent current. Use Value: Extends battery life without sacrificing real-time bandwidth-critical for field-deployable instrumentation. |
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 |
|---|---|---|---|
| LMH6720MF | Lower 200 MHz UGBW, 350 V/μs slew rate, 1.5 mA supply current; SOT-23-5 package identical. | Not suitable for >250 MHz video or A/D driver applications requiring 370 MHz bandwidth. | Select LMH6720MF only if bandwidth ≤200 MHz suffices and higher supply current is acceptable. |
| THS3201DBV | Higher 1.8 GHz UGBW, 3000 V/μs slew rate, 12 mA supply current; same SOT-23-5 footprint but different pinout (V−/V+ swapped). | Requires PCB redesign due to pinout mismatch; overqualified for portable video where power efficiency is critical. | Choose THS3201DBV only for ultra-wideband (>1 GHz) applications where 12 mA supply current is tolerable. |
Compared with LMH6720MF and THS3201DBV, the LMH6723MF uniquely balances 370 MHz bandwidth, 600 V/μs slew rate, and 1.2 mA supply current in a standard SOT-23-5 layout-making it optimal for portable video and low-power high-speed analog front-ends where thermal and battery constraints dominate.
Availability
LMH6723MF is available at Aetrix Electronics and suitable for portable video signal chains, A/D converter drivers, and high-speed line driver applications requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for LMH6723MF 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, embedded processing, and high-performance analog ICs for industrial, automotive, and communications markets.
The LMH6723MF belongs to TI's high-speed current-feedback op amp product line, engineered specifically for portable video, test equipment, and low-power wideband signal conditioning where bandwidth, fidelity, and efficiency must coexist.
FAQ
What is the maximum operating supply voltage for the LMH6723MF?
The LMH6723MF supports a total supply voltage (V+ − V−) up to ±6.75 V, corresponding to a single-supply range of 4.5 V to 12 V. Absolute maximum ratings specify ±6.75 V differential supply; operation beyond this risks permanent damage. Recommended conditions limit nominal supply to ±5 V or ±2.5 V for specified electrical characteristics, and the device maintains functionality across the full 4.5–12 V range with appropriate derating.
Does the LMH6723MF require external compensation for unity-gain stability?
No, the LMH6723MF 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 datasheet confirms unity-gain stability under all tested conditions, and typical application circuits show direct buffer configurations without added compensation components.
Can the LMH6723MF drive a 75 Ω coaxial cable directly?
Yes-the LMH6723MF can drive a 75 Ω coaxial cable directly when configured with an appropriate series output resistor (ROUT). At ±5 V supply, its 110 mA linear output current and 0.01 Ω closed-loop output resistance enable clean 1 VPP video signals into 75 Ω. For optimal stability and minimal peaking, TI recommends ROUT = 24 Ω when CL = 100 pF (typical cable capacitance), as validated in Figure 17 of the LMH6723MF datasheet.
What is the input bias current polarity and magnitude at the inverting input of the LMH6723MF?
The LMH6723MF exhibits an inverting input bias current (IBI) of −0.7 µA (typical) at ±2.5 V supply and −0.4 µA (typical) at ±5 V supply, with min/max limits of ±4 µA to ±5 µA. This current flows *into* the inverting terminal, consistent with the VIP10 bipolar input stage. The non-inverting input bias current (IBN) is −2.7 µA (±2.5 V) and −2 µA (±5 V), also flowing inward.
How does the LMH6723MF's small-signal bandwidth change with supply voltage?
The LMH6723MF's small-signal bandwidth decreases with lower supply voltage: 260 MHz at ±5 V (AV = +2), 210 MHz at ±2.5 V (AV = +2). This reduction stems from decreased internal bias current and reduced slew rate (600 V/μs at ±5 V vs. 400 V/μs at ±2.5 V), directly impacting large-signal response and settling behavior. All bandwidth specifications are measured with VOUT = 0.5 VPP and RL = 100 Ω.
LMH6723MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-23-5
LMH6723MF FAQ
1.How can I place an order for LMH6723MF through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MF 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 reliable?
The price and inventory of LMH6723MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MF is usually 5 days.
3.What payment methods are accepted for LMH6723MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MF?
LMH6723MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MF 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?
For technical support, including LMH6723MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MF requirements.
6.How does Aetrix verify that LMH6723MF is sourced from the original manufacturer or authorized distributors?
All LMH6723MF 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 meets industry standards.
7.What is the process for return or replacement of LMH6723MF?
All LMH6723MF units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MF, 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 part is unused and in its original packaging.
Return procedure for LMH6723MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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