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Texas Instruments LMH6658MM/NOPB
- Part No.:
- LMH6658MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMH6658MM/NOPB.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:632
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Product details
Overview
LMH6658MM/NOPB from Texas Instruments is a dual, single-supply, voltage-feedback operational amplifier with 270-MHz −3dB bandwidth (AV = +1), 700 V/µs slew rate, and 140-MHz gain-bandwidth product. It operates from 3 V to 12 V supply, delivers ±80/−90 mA output current, and supports rail-to-rail output swing within 0.8 V of either rail-enabling high-fidelity video buffering in portable communications and ADC/DAC interface circuits.
For engineers reviewing the LMH6658MM/NOPB datasheet, LMH6658MM/NOPB pinout, LMH6658MM/NOPB application, or LMH6658MM/NOPB equivalent, key selection criteria include its 0.03% differential gain / 0.10° differential phase performance at NTSC video frequencies, 37 ns 0.1% settling time, and validated operation across −40°C to +85°C industrial temperature range with no output phase reversal under overdriven common-mode conditions.
Technical Context
The LMH6658MM/NOPB employs a voltage-feedback topology optimized for wideband large-signal fidelity, featuring an input stage that extends 0.5 V below V− and 1.7 V from V+, enabling ground-referenced signal amplification. Its output stage delivers symmetrical sourcing/sinking capability up to ±105 mA into 150 Ω loads while maintaining <0.1% settling accuracy.
It achieves 270 MHz −3dB bandwidth at unity gain and retains 100 MHz bandwidth at AV = +2, with 1° linear phase deviation up to 30 MHz and 0.1-dB gain flatness over 13 MHz (5 V supply) or 20 MHz (±5 V supply). Cross-talk rejection between channels is 69 dB at 5 MHz, confirming true dual-channel isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 270 MHz at AV = +1 - enables direct drive of 75 Ω video lines or high-speed ADC inputs without external compensation |
| Slew Rate | 700 V/µs - supports full-scale 3 VPP step response in <5 ns, critical for pulse-amplifier and fast-settling data acquisition |
| Supply Range | 3 V to 12 V single supply - eliminates need for split rails in battery-powered portable video and instrumentation |
| Output Current | +80/−90 mA - drives 150 Ω video loads or parallel termination networks without external buffers |
| DG/DP Error | 0.03% / 0.10° at NTSC - meets broadcast-grade analog video linearity requirements without post-correction |
| Settling Time | 37 ns to 0.1% - ensures accurate sampling in >25 MSPS ADC front-ends with minimal aperture uncertainty |
| Input Voltage Noise | 11 nV/√Hz at 100 kHz - preserves SNR in low-level sensor signal conditioning prior to digitization |
Pinout & Package
VSSOP-8 package (3.00 mm × 3.00 mm body size), thermally enhanced for high-speed operation in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output A | Amplified signal from Channel A; capable of 0.8 V rail-to-rail swing and ±105 mA drive into 150 Ω |
| −IN A (Pin 2) | Inverting Input A | High-impedance node for feedback network connection; supports stable inverting configurations up to 100 MHz |
| +IN A (Pin 3) | Noninverting Input A | DC-coupled input extending 0.5 V below V−; enables ground-referenced signal amplification |
| V− (Pin 4) | Negative Supply | Ground reference for single-supply operation; also serves as return path for bias currents |
| V+ (Pin 5) | Positive Supply | Primary power rail (3–12 V); supplies both channels with independent internal regulation |
| −IN B (Pin 6) | Inverting Input B | Independent high-Z input for Channel B; isolated from Channel A with 69 dB crosstalk rejection at 5 MHz |
| +IN B (Pin 7) | Noninverting Input B | Matches +IN A electrical behavior; supports dual-channel synchronous signal processing |
| OUT B (Pin 8) | Output B | Fully independent output with identical AC/DC specs to OUT A; enables stereo video or dual ADC buffering |
Key Features
| Feature | Design Value |
|---|---|
| No output phase reversal | Guaranteed operation without polarity inversion when common-mode input exceeds specified range - eliminates latch-up risk in overdriven video sync detection |
| Rail-to-rail output swing | Swings to within 0.8 V of either supply rail under 2 kΩ load - maximizes dynamic range in 3.3 V or 5 V systems |
| Input beyond rail capability | Accepts common-mode voltages 0.5 V below V− and 1.7 V from V+ - simplifies level-shifting for ground-referenced sensors |
| Low distortion at 5 MHz | THD = −55.5 dBc - preserves harmonic integrity in RF IF amplification and high-fidelity audio preamp stages |
| Short-circuit protected | Withstands indefinite short to ground at VS < 6 V; momentary protection up to 1.5 ms at higher supplies - improves system robustness |
Applications
| Video Signal Conditioning | ADC Driver Interface |
|---|---|
Use Scenario: Amplifying composite NTSC video signals in portable DVD players and set-top boxes with minimal color error. IC Role / Device Role / Timing Role: Dual-channel buffer driving 75 Ω coaxial cables with matched gain/phase across luminance and chrominance paths. Use Value: 0.03% DG / 0.10° DP error ensures broadcast-compliant color fidelity without external calibration components. | Use Scenario: Driving the input of 12-bit, 50 MSPS analog-to-digital converters in medical ultrasound front-ends. IC Role / Device Role / Timing Role: High-speed, low-noise gain stage preceding sampling; provides 37 ns 0.1% settling to meet aperture uncertainty budgets. Use Value: 11 nV/√Hz input noise and 270 MHz bandwidth preserve ENOB across full Nyquist band. |
| Portable Communications | Current Sense Amplification |
Use Scenario: Transmit/receive signal path conditioning in handheld two-way radios operating from 3.6 V Li-ion batteries. IC Role / Device Role / Timing Role: Dual op-amp implementing I/Q baseband filtering and AGC loop amplification in zero-IF architectures. Use Value: Single 3.6 V supply operation and 140 MHz GBWP enable compact, low-power RF subsystem design. | Use Scenario: Amplifying mV-level shunt voltage drops in motor control inverters with high common-mode transients. IC Role / Device Role / Timing Role: Precision current sense buffer with input extending below ground to handle bidirectional current flow. Use Value: 0.5 V beyond V− input range allows accurate sensing during PWM dead-time without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6643MM/NOPB | Lower 100 MHz bandwidth, 13 V/µs slew rate, 2.7–12.6 V supply; no guaranteed DG/DP spec | Targeted at general-purpose high-speed buffering where video linearity is not required | Select when cost sensitivity outweighs bandwidth and video fidelity needs |
| ADA4817-2ARMZ | FEMTOSECOND settling (12 ns), lower 4.2 nV/√Hz noise, but narrower 1 GHz GBW and ±5 V max supply | Optimized for ultra-low-noise, precision ADC drivers-not video or high-output-current applications | Choose for sub-12-bit precision data acquisition where speed/noise trade-off favors noise floor |
Compared with LMH6643MM/NOPB, LMH6658MM/NOPB delivers 2.7× higher bandwidth and verified NTSC video performance; versus ADA4817-2ARMZ, it offers 2× higher output drive and single-supply flexibility at the expense of 2.6× higher input noise-making it optimal for cost-sensitive, high-output, video-capable dual-channel designs.
Availability
LMH6658MM/NOPB is available at Aetrix Electronics and suitable for video signal conditioning, ADC driver interface, and portable communications requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMH6658MM/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 and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMH6658MM/NOPB belongs to TI's high-speed voltage-feedback op-amp product line, engineered specifically for wideband video, communications, and data acquisition systems demanding low distortion, fast settling, and rail-to-rail output capability.
FAQ
What is the maximum supply voltage rating for LMH6658MM/NOPB?
The LMH6658MM/NOPB has an absolute maximum supply voltage (V+ − V−) of 12.6 V. Its recommended operating range is 3 V to 12 V single supply or ±2.5 V to ±6 V split supply. Operation above 12 V risks permanent damage per Absolute Maximum Ratings in the official datasheet (SNOSA35G, Rev G).
Does LMH6658MM/NOPB support true rail-to-rail output swing?
LMH6658MM/NOPB delivers output swing to within 0.8 V of either supply rail under 2 kΩ load, and to 0.97 V under 150 Ω load. While not fully rail-to-rail, this performance exceeds most competing dual op-amps in its class and suffices for 3.3 V and 5 V video and data acquisition applications.
Is LMH6658MM/NOPB pin-compatible with LMH6657MM/NOPB?
No. LMH6658MM/NOPB is an 8-pin dual op-amp in VSSOP-8 package, whereas LMH6657MM/NOPB is a 5-pin single op-amp in SOT-23 or SC70 packages. Their pinouts, channel count, and footprint are fundamentally incompatible-PCB redesign is required for substitution.
What is the typical input bias current of LMH6658MM/NOPB at 25°C?
The typical input bias current of LMH6658MM/NOPB is −5 µA at 25°C under 5 V single supply, as specified in Section 6.5 of the datasheet. This value increases negatively (more sink current) at temperature extremes, reaching −30 µA at −40°C and +85°C.
Can LMH6658MM/NOPB be used in inverting configuration with gain of −2?
Yes. LMH6658MM/NOPB is fully characterized for inverting configurations including AV = −1 and −2. At AV = −2, it maintains 100 MHz −3dB bandwidth and 16% overshoot in step response, with 35 ns 0.1% settling time under ±5 V supply-validated in Electrical Characteristics tables and Typical Characteristics Figures 2 and 4.
LMH6658MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 700V/µs
- Gain Bandwidth Product:
- 140 MHz
- -3db Bandwidth:
- 270 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 6.5mA (x2 Channels)
- Current - Output / Channel:
- 110 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMH6658MM/NOPB FAQ
1.How can I place an order for LMH6658MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6658MM/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 LMH6658MM/NOPB reliable?
The price and inventory of LMH6658MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6658MM/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6658MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6658MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6658MM/NOPB?
LMH6658MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6658MM/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 LMH6658MM/NOPB?
For technical support, including LMH6658MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6658MM/NOPB requirements.
6.How does Aetrix verify that LMH6658MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6658MM/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 LMH6658MM/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6658MM/NOPB?
All LMH6658MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6658MM/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 LMH6658MM/NOPB part is unused and in its original packaging.
Return procedure for LMH6658MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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