Texas Instruments LMH6654MF
- Part No.:
- LMH6654MF
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMH6654MF.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LMH6654MF from Texas Instruments is a single-channel, voltage-feedback operational amplifier optimized for high-speed, low-noise signal conditioning in ±2.5 V to ±6 V systems. It delivers 250 MHz unity-gain bandwidth, 200 V/µs slew rate, 4.5 nV/√Hz input voltage noise, and rail-to-rail output swing (−3.6 V to +3.4 V on 100 Ω load) - enabling precision ADC driving and video signal amplification in portable instrumentation.
For engineers reviewing the LMH6654MF datasheet, LMH6654MF pinout, LMH6654MF application, or LMH6654MF equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SOT-23-5 pin functions, application-specific implementation insights, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The LMH6654MF employs TI's VIP10™ complementary bipolar process to achieve unity-gain stability with 250 MHz bandwidth while consuming only 4.5 mA per channel. Its input common-mode range extends 150 mV below V− and within 1.3 V of V+, supporting true single-supply operation at 5 V.
It features low-input-bias-current PNP inputs (5 µA typical), 70 dB CMRR over −5.15 V to +3.7 V common-mode range, and 60 dB PSRR - making it suitable for DC-coupled sensor interfaces and high-fidelity analog front-ends where offset drift (6 µV/°C) and noise integrity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable gain-of-1 operation up to video frequencies (e.g., NTSC/PAL baseband) without external compensation. |
| Slew Rate | 200 V/µs - supports clean 2 VPP step response in ≤25 ns (0.01% settling), critical for fast data acquisition and pulse amplification. |
| Input Voltage Noise | 4.5 nV/√Hz - preserves SNR in low-amplitude sensor and preamp stages; dominates total noise below ~10 kΩ source impedance. |
| Supply Current | 4.5 mA/channel - balances speed and power efficiency for battery-powered test equipment and portable medical devices. |
| Output Swing (RL = 100 Ω) | −3.6 V to +3.4 V (±5 V supply) - delivers >95% of rail-to-rail dynamic range into moderate loads, reducing need for level-shifting. |
| Input Common-Mode Range | −5.15 V to +3.7 V - allows direct interfacing to bipolar sensors or DAC outputs without external biasing networks. |
| Settling Time (0.01%) | 25 ns - meets timing budgets for 10+ MS/s SAR and pipeline ADC drivers with minimal acquisition delay. |
Pinout & Package
LMH6654MF is packaged in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts and high-density analog signal chains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUTPUT | Amplifier output | Delivers full-swing signal; requires local 0.1 µF bypass capacitor to V− and V+ for stability under capacitive loads. |
| 2 - V− | Negative supply | Accepts −2.5 V to −6 V; must be decoupled independently from V+ to minimize ground bounce in mixed-signal systems. |
| 3 - +IN | Non-inverting input | High-impedance PNP node (4 MΩ common-mode RIN); used for unity-gain buffer or high-Z sensor interface. |
| 4 - −IN | Inverting input | Low-impedance node sensitive to parasitic capacitance; requires matched layout and short trace routing to avoid oscillation. |
| 5 - V+ | Positive supply | Accepts +2.5 V to +6 V; shares thermal path with die substrate - critical for thermal stability in multi-channel boards. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage feedback architecture | Enables predictable closed-loop bandwidth (fCL ≈ GBWP / AV) and simplified stability analysis vs. current-feedback op-amps. |
| Rail-to-rail output stage | Delivers >3.4 VPP swing into 100 Ω at ±5 V supply - eliminates need for external level shifters in 3.3 V/5 V system interconnects. |
| Low input bias current (5 µA typ) | Minimizes voltage error across high-value feedback networks (e.g., ≥10 kΩ), preserving gain accuracy in precision integrators. |
| Single-supply capable input stage | Operates with VCM as low as −5.15 V (at ±5 V) - supports direct coupling to bipolar transducer outputs without AC coupling or bias resistors. |
| 25 ns 0.01% settling time | Meets timing requirements for 12-bit, 10 MS/s data converters - reduces aperture uncertainty and improves effective resolution. |
Applications
| ADC Drivers | Consumer Video |
|---|---|
Use Scenario: Driving the input of a 12-bit, 10 MS/s SAR ADC in a portable oscilloscope front-end. IC Role / Device Role / Timing Role: High-speed buffer and level shifter that conditions ±2 V sensor output to match ADC's 0–3.3 V input range while maintaining <0.5 LSB integral nonlinearity. Use Value: 25 ns settling ensures full-scale step acquisition within one sample period; 4.5 nV/√Hz noise contributes <0.25 LSB RMS noise at 12-bit resolution. |
Use Scenario: Amplifying composite NTSC video signals in a set-top box HDMI encoder module. IC Role / Device Role / Timing Role: DC-coupled video line driver delivering 1 VPP sync-tip-to-white level into 75 Ω coaxial cable. Use Value: 0.01% differential gain (0.01%) and phase (0.025°) errors preserve color fidelity; 230 MHz closed-loop bandwidth supports full 4.2 MHz luminance bandwidth. |
| Active Filters | Pulse Delay Circuits |
Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a 16-bit audio ADC. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain stage in a multiple-feedback topology operating at 20 kHz cutoff. Use Value: −85 dBc third-harmonic distortion at 5 MHz prevents intermodulation artifacts; 70 dB CMRR rejects power-supply ripple in shared analog rails. |
Use Scenario: Generating precise 10 ns delay steps in a time-of-flight laser rangefinder timing chain. IC Role / Device Role / Timing Role: Fast-settling inverting amplifier with controlled group delay used in tapped delay-line calibration. Use Value: 1.2 ns fall time and 200 V/µs slew rate ensure sub-nanosecond edge fidelity; 15 ns 0.1% settling guarantees deterministic pulse alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA | Higher bandwidth (1.5 GHz), higher supply current (12.5 mA), same SOT-23-5 package. | Better suited for RF IF amplification (>100 MHz) but overqualified for baseband video or ADC driving. | Select LMH6629MA only when >500 MHz small-signal bandwidth or <5 ns rise time is required; LMH6654MF offers better power/noise trade-off for DC–100 MHz. |
| OPA695IDBVR | Current-feedback architecture, 1.7 GHz bandwidth, 12.5 mA supply, SOT-23-5 package. | Requires careful feedback resistor selection (402 Ω typical); less tolerant of capacitive loads without isolation resistor. | Choose OPA695IDBVR for ultra-high-speed current-mode signal paths (e.g., photodiode transimpedance); LMH6654MF preferred for voltage-mode precision with simpler stability tuning. |
Compared with LMH6654MF, LMH6629MA trades 2.7× higher power for 6× bandwidth - justifiable only in RF sampling front-ends, while OPA695IDBVR demands stricter layout control for stability but delivers superior slew rate for transient-heavy waveforms.
Availability
LMH6654MF is available at Aetrix Electronics and suitable for ADC driver, consumer video, active filter, and pulse delay circuit applications requiring stable component supply, long-term manufacturability, and TI-qualified automotive-grade traceability.
Supply support for LMH6654MF 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-performance op-amps and signal-chain solutions.
The LMH6654MF belongs to TI's LMH high-speed amplifier product line, engineered for applications demanding wide bandwidth, low noise, and rail-to-rail output swing in portable and instrumentation-grade systems.
FAQ
What is the maximum recommended supply voltage for LMH6654MF?
The LMH6654MF supports a total supply voltage range of ±2.5 V to ±6 V (13.2 V max between V+ and V−). Absolute maximum rating is 13.2 V; operation beyond ±6 V risks permanent damage. For reliable long-term use, TI specifies ±5 V as the nominal condition for all electrical characteristics in the datasheet, including 250 MHz bandwidth and 4.5 nV/√Hz noise performance. LMH6654MF must never be operated at ±6.5 V or higher.
Does LMH6654MF support true single-supply operation with 0 V as V−?
Yes - LMH6654MF supports true single-supply operation with V− = 0 V and V+ = 5 V. Its input common-mode voltage range extends to −0.15 V (150 mV below V−), and output swings from 0.9 V to 3.75 V (no load) or 1.0 V to 3.7 V (100 Ω load). This enables direct interfacing with 3.3 V logic and unipolar sensors without level-shifting circuitry. All 5V Electrical Characteristics in the datasheet (Section 6.6) are validated under this configuration.
What is the minimum load resistance LMH6654MF can drive while maintaining 0.01% settling?
LMH6654MF maintains 25 ns 0.01% settling time into RL = 100 Ω, as specified in the ±5 V Electrical Characteristics table. Driving lower impedances (e.g., 50 Ω) increases output current demand and thermal stress, degrading settling behavior and potentially causing instability. TI does not characterize or guarantee 0.01% settling for RL < 100 Ω. For 50 Ω loads, an external series isolation resistor (e.g., 50 Ω) is recommended per Figure 41 in the datasheet to preserve pulse fidelity.
Can LMH6654MF replace LMH6654MFX in a design?
Yes - LMH6654MF and LMH6654MFX are identical in silicon and electrical specifications; the "X" suffix denotes tape-and-reel packaging (3,000 units/reel), while "F" indicates cut-tape (250 units). Both share the same SOT-23-5 (DBV) package, pinout, thermal characteristics, and guaranteed performance across −40°C to +85°C. No PCB or schematic changes are needed when substituting LMH6654MF for LMH6654MFX or vice versa.
How does LMH6654MF's input voltage noise compare to OPA691 at 100 kHz?
LMH6654MF specifies 4.5 nV/√Hz input voltage noise across f ≥ 0.1 MHz (100 kHz), constant with frequency in that band. The OPA691, a current-feedback op-amp, has 1.9 nV/√Hz at 100 kHz - lower by 2.6 nV/√Hz. However, LMH6654MF's voltage-feedback architecture provides superior DC precision (±1 mV VOS, 6 µV/°C drift) and easier stability control, whereas OPA691 requires strict 402 Ω feedback resistance and exhibits higher distortion above 10 MHz. LMH6654MF remains optimal for DC-coupled, medium-bandwidth applications prioritizing noise-floor consistency and ease of use.
LMH6654MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 200V/µs
- Gain Bandwidth Product:
- 260 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 4.5mA
- Current - Output / Channel:
- 120 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
LMH6654MF FAQ
1.How can I place an order for LMH6654MF through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6654MF 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 LMH6654MF reliable?
The price and inventory of LMH6654MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6654MF is usually 5 days.
3.What payment methods are accepted for LMH6654MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6654MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6654MF?
LMH6654MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6654MF 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 LMH6654MF?
For technical support, including LMH6654MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6654MF requirements.
6.How does Aetrix verify that LMH6654MF is sourced from the original manufacturer or authorized distributors?
All LMH6654MF 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 LMH6654MF meets industry standards.
7.What is the process for return or replacement of LMH6654MF?
All LMH6654MF units undergo pre-shipment inspection (PSI). If there is an issue with LMH6654MF, 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 LMH6654MF part is unused and in its original packaging.
Return procedure for LMH6654MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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