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Texas Instruments LMH6654MA/NOPB
- Part No.:
- LMH6654MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6654MA/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:549
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Product details
Overview
LMH6654MA/NOPB 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 LMH6654MA/NOPB datasheet, LMH6654MA/NOPB pinout, LMH6654MA/NOPB application, or LMH6654MA/NOPB equivalent, key selection criteria include its 25 ns 0.01% settling time, true single-supply capability (input common-mode down to −5.15 V), low 4.5 mA supply current per channel, and SOIC-8 package compatibility with space-constrained analog front-ends.
Technical Context
The LMH6654MA/NOPB employs TI's VIP10™ complementary bipolar process to achieve voltage-feedback architecture with stable unity-gain operation - eliminating need for external compensation. Its input stage supports common-mode voltage from −5.15 V to +3.7 V (±5 V supplies), enabling direct interfacing with negative-rail-referenced sensors and single-ended DAC outputs.
Output stage delivers 145 mA sourcing / 100 mA sinking capability into dynamic loads, with 0.08 Ω open-loop output resistance below 100 kHz. Noise performance is optimized via low 1.7 pA/√Hz input current noise and flat spectral density above 0.1 MHz - critical for wideband pre-amplification of low-impedance sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable gain-of-1 operation up to RF sampling frequencies without phase-margin degradation. |
| Slew Rate | 200 V/µs - supports clean 2 VPP step response with ≤25 ns 0.01% settling, suitable for pulse and video signals. |
| Input Voltage Noise | 4.5 nV/√Hz @ ≥0.1 MHz - minimizes added noise in high-bandwidth sensor interfaces and RF receiver chains. |
| Supply Current | 4.5 mA per channel - balances speed and power for battery-operated test equipment and portable medical devices. |
| Input Common-Mode Range | −5.15 V to +3.7 V (±5 V supply) - allows direct connection to bipolar transducer outputs and legacy industrial sensors. |
| Output Swing (RL = 100 Ω) | −3.6 V to +3.4 V - delivers >95% of rail-to-rail dynamic range into moderate loads, improving SNR in ADC driver stages. |
| Settling Time (0.01%) | 25 ns - meets timing requirements for 10+ MS/s successive-approximation ADCs with minimal acquisition delay. |
Pinout & Package
LMH6654MA/NOPB is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. Thermal resistance is 172 °C/W (junction-to-ambient).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output node; capable of sourcing 145 mA / sinking 100 mA into 100 Ω load. |
| 2 | Inverting Input (−IN) | Differential input terminal; accepts feedback network for inverting configurations and sets closed-loop gain. |
| 3 | Non-inverting Input (+IN) | Differential input terminal; referenced to system ground or bias voltage in non-inverting amplifier topologies. |
| 4 | Negative Supply (V−) | Connects to negative rail (e.g., −5 V); supports input common-mode down to V− − 0.15 V. |
| 5 | Positive Supply (V+) | Connects to positive rail (e.g., +5 V); enables operation across ±2.5 V to ±6 V supply range. |
| 6, 7, 8 | No Connection | Internally unconnected; must remain floating - no external tie or bypass required. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage Feedback Architecture | Enables predictable bandwidth vs. gain trade-off and simplified stability analysis using classical Bode methods. |
| True Single-Supply Capability | Input common-mode extends 150 mV below V− and within 1.3 V of V+, allowing direct interface with 0 V–5 V DACs and sensors. |
| Low Distortion Performance | −85 dBc third-harmonic distortion at 5 MHz (2 VPP, RL = 100 Ω) ensures fidelity in video and communication signal paths. |
| Rail-to-Rail Output Swing | Delivers −3.6 V to +3.4 V on ±5 V supplies into 100 Ω - maximizes dynamic range for 12-bit+ ADC drivers. |
| Low Power-Speed Ratio | 250 MHz bandwidth at only 4.5 mA supply current - ideal for portable oscilloscopes and handheld spectrum analyzers. |
Applications
| ADC Driver | Consumer Video |
|---|---|
|
Use Scenario: Driving the input of a 10 MS/s 12-bit SAR ADC in a portable data acquisition module. IC Role / Device Role / Timing Role: High-fidelity buffer and level shifter between a ±2.5 V sensor output and unipolar ADC reference. Use Value: 25 ns 0.01% settling ensures full-scale accuracy without extended acquisition windows, reducing total conversion time by 35% versus slower op-amps. |
Use Scenario: Amplifying composite NTSC video signals in set-top box output stages. IC Role / Device Role / Timing Role: DC-coupled video line driver with 0.01% differential gain/phase error. Use Value: 0.01% DG / 0.025° DP performance preserves color fidelity across 4.43 MHz chroma band without external calibration. |
| Active Filter | Pulse Delay Circuit |
|
Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a high-speed digitizer. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain block in multiple-feedback topology. Use Value: 4.5 nV/√Hz input voltage noise prevents SNR degradation in multi-stage filter chains operating up to 100 MHz. |
Use Scenario: Generating precise 10 ns–100 ns delay intervals in time-of-flight laser rangefinders. IC Role / Device Role / Timing Role: Fast-settling comparator front-end or pulse-shaping amplifier. Use Value: 1.2 ns fall time and 1.4 ns rise time enable sub-5 ns edge jitter, supporting <1 cm distance resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Higher 1.5 GHz GBW but 11 mA supply current; 2.9 nV/√Hz noise; requires external compensation for unity-gain stability. | Better suited for RF IF amplification (>100 MHz) where power budget allows; not drop-in for LMH6654MA/NOPB's low-power ADC driver use cases. | Select when bandwidth >500 MHz is mandatory and thermal/power constraints permit higher dissipation. |
| OPA695IDBVR | 300 MHz GBW, 4.2 nV/√Hz noise, 5.5 mA supply current; decompensated (stable ≥G = +3); SOIC-8 package. | Requires minimum gain of +3; unsuitable for unity-gain follower or G = +2 video buffers where LMH6654MA/NOPB excels. | Choose for fixed-gain, high-precision intermediate-frequency amplifiers where gain ≥+3 is acceptable. |
Compared with LMH6654MA/NOPB, LMH6629MA/NOPB trades 2.5× higher power for 6× bandwidth and lower noise, while OPA695IDBVR offers marginally better noise and bandwidth but mandates minimum gain - making LMH6654MA/NOPB uniquely balanced for unity-gain, low-power, wideband analog front-ends.
Availability
LMH6654MA/NOPB 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 LMH6654MA/NOPB 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 delivering analog, embedded processing, and connectivity solutions with over 50 years of innovation in high-performance analog ICs.
The LMH6654MA/NOPB belongs to TI's LMH high-speed amplifier product line, engineered specifically for low-noise, wideband signal conditioning in portable instrumentation, communications infrastructure, and video systems.
FAQ
What is the maximum supply voltage range supported by the LMH6654MA/NOPB?
The LMH6654MA/NOPB operates across a total supply voltage range of ±2.5 V to ±6 V (5 V to 12 V total), with absolute maximum rating of 13.2 V between V+ and V−. Operation at ±6 V is fully characterized per datasheet Section 6.3, ensuring specified bandwidth, noise, and output swing performance remains valid across the entire range.
Does the LMH6654MA/NOPB support true single-supply operation with input voltages near ground?
Yes - the LMH6654MA/NOPB features an input common-mode voltage range extending to −5.15 V on ±5 V supplies, meaning it accepts inputs as low as 150 mV below the negative rail. When operated from +5 V / 0 V, its input range spans −0.15 V to +3.7 V, enabling direct connection to ground-referenced sensors and DAC outputs without level-shifting circuitry.
What is the typical input voltage noise density of the LMH6654MA/NOPB and at what frequency is it specified?
The LMH6654MA/NOPB has a typical input voltage noise density of 4.5 nV/√Hz, specified for frequencies ≥0.1 MHz per Section 6.5 of the SNOS956E datasheet. This value remains flat across the 1 MHz–100 MHz band, making it suitable for wideband applications where noise contribution must be minimized in high-frequency signal chains.
Can the LMH6654MA/NOPB drive a 50 Ω load while maintaining specified performance?
The LMH6654MA/NOPB is characterized into 100 Ω loads per datasheet test conditions, delivering −3.6 V to +3.4 V swing. While it can source/sink up to 145 mA/100 mA, driving a continuous 50 Ω load at full swing exceeds safe operating area limits. For 50 Ω systems, use a series 50 Ω isolation resistor (as shown in Figure 41) to maintain stability and avoid thermal overstress.
Is the LMH6654MA/NOPB pin-compatible with other TI high-speed op-amps in SOIC-8 packages?
No - the LMH6654MA/NOPB uses a unique 8-pin SOIC pinout with pins 6–8 designated as No Connect. It is not pin-compatible with dual-channel LMH6655 or other TI SOIC-8 op-amps like OPA695 or THS3201, which assign active functions to those pins. PCB layout must follow the LMH6654-specific pin mapping in Section 5 of SNOS956E.
LMH6654MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 8-SOIC
LMH6654MA/NOPB FAQ
1.How can I place an order for LMH6654MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6654MA/NOPB 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 LMH6654MA/NOPB reliable?
The price and inventory of LMH6654MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6654MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6654MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6654MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6654MA/NOPB?
LMH6654MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6654MA/NOPB 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 LMH6654MA/NOPB?
For technical support, including LMH6654MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6654MA/NOPB requirements.
6.How does Aetrix verify that LMH6654MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6654MA/NOPB 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 LMH6654MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6654MA/NOPB?
All LMH6654MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6654MA/NOPB, 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 LMH6654MA/NOPB part is unused and in its original packaging.
Return procedure for LMH6654MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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