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Texas Instruments LMH6658MA/NOPB
- Part No.:
- LMH6658MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6658MA/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:611
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Product details
Overview
LMH6658MA/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 (±5 V), 6.2 mA per channel supply current, and rail-to-rail output swing capability. It operates from 3 V to 12 V supplies and supports video buffering, ADC/DAC interface, and portable communications systems requiring high-speed, low-distortion signal conditioning.
For engineers reviewing the LMH6658MA/NOPB datasheet, LMH6658MA/NOPB pinout, LMH6658MA/NOPB application, or LMH6658MA/NOPB equivalent, key selection criteria include its 270-MHz unity-gain bandwidth, 0.03% differential gain / 0.10° differential phase performance for NTSC video, ±5 V/±2.5 V operation compatibility, and VSSOP-8 package suitability for space-constrained designs.
Technical Context
The LMH6658MA/NOPB employs a voltage-feedback architecture optimized for high-speed large-signal applications, delivering 140 MHz GBWP and 37 ns 0.1% settling time at AV = −1. Its input stage extends below V− by 0.5 V, enabling ground-referenced signal amplification without level-shifting circuitry.
It features fully differential dual-channel operation with 69 dB crosstalk rejection at 5 MHz, independent input common-mode range (0.5 V beyond V−, 1.7 V from V+), and no output phase reversal when CMVR is exceeded - critical for robustness in dynamic input environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 270 MHz at AV = +1 - enables stable amplification of fast digital edges and RF IF signals up to ~135 MHz fundamental |
| Slew Rate | 700 V/µs at ±5 V - supports full-scale 3 VPP output transitions in ≤4.3 ns without slewing distortion |
| Supply Voltage Range | 3 V to 12 V single supply - compatible with Li-ion battery (3.3 V–4.2 V), 5 V logic, and 12 V industrial rails |
| Output Current | +80/−90 mA - drives 75 Ω video loads or 150 Ω ADC inputs directly without external buffers |
| DG/DP Error | 0.03% / 0.10° at NTSC - meets broadcast-grade video fidelity requirements without post-compensation |
| Input Voltage Noise | 11 nV/√Hz at 100 kHz - preserves SNR in front-end amplification of low-level sensor or RF signals |
| Settling Time | 37 ns to 0.1% at AV = −1 - satisfies high-speed data acquisition timing budgets for ≥27 MSPS sampling |
Pinout & Package
VSSOP-8 package (3.00 mm × 3.00 mm), thermally enhanced, surface-mount, lead-free (NOPB) variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output A | Amplified signal from Channel A; capable of ±90 mA sink/source into 75 Ω load |
| −IN A (Pin 2) | Inverting Input A | Feedback node for inverting configurations; high-impedance (4 MΩ) with 1.8 pF capacitance |
| +IN A (Pin 3) | Noninverting Input A | High-Z input extending 0.5 V below V−; enables ground-referenced DC-coupled sensing |
| V− (Pin 4) | Negative Supply | Ground reference for single-supply operation; supports rail-to-rail output swing down to 900 mV above V− |
| V+ (Pin 5) | Positive Supply | 3–12 V input; PSRR >72 dB ensures immunity to supply ripple in mixed-signal PCBs |
| −IN B (Pin 6) | Inverting Input B | Independent Channel B input; 69 dB crosstalk rejection isolates dual-channel signal paths |
| +IN B (Pin 7) | Noninverting Input B | Channel B positive input; identical CMVR and noise specs as Channel A |
| OUT B (Pin 8) | Output B | Second independent output; matched AC/DC performance to OUT A for differential or parallel use |
Key Features
| Feature | Design Value |
|---|---|
| No output phase reversal | Prevents latch-up or instability when input exceeds common-mode range - eliminates need for external clamping diodes |
| Rail-to-rail output swing | Swings within 0.8 V of either rail at 2 kΩ load - maximizes dynamic range in low-voltage 3.3 V systems |
| Input beyond V− | Operates with inputs down to V− − 0.5 V - enables direct amplification of 0 V–2.5 V sensor outputs without negative bias |
| Short-circuit protection | Withstands indefinite short to ground at VS < 6 V - improves reliability in test and debug scenarios |
| Low THD at 5 MHz | −55.5 dBc total harmonic distortion - maintains signal integrity in IF amplification and DAC reconstruction filters |
Applications
| Video Signal Buffering | ADC Driver Interface |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in portable DVD players and set-top boxes with NTSC/PAL composite video signals. IC Role / Device Role / Timing Role: Dual-channel buffer isolating video DAC output from transmission line; provides gain, drive strength, and DG/DP correction. Use Value: 0.03% DG / 0.10° DP error ensures broadcast-compliant color fidelity without external calibration components. | Use Scenario: Conditioning analog signals prior to sampling by 10-bit+ SAR or pipeline ADCs operating at ≥20 MSPS. IC Role / Device Role / Timing Role: High-speed, low-noise driver providing 37 ns 0.1% settling to meet ADC aperture uncertainty requirements. Use Value: 11 nV/√Hz input noise and 37 ns settling preserve ENOB in 10+ bit systems without oversampling penalty. |
| Current Sense Amplification | Portable Communications Front-End |
Use Scenario: Amplifying mV-level shunt voltage drops in battery management ICs and motor control inverters. IC Role / Device Role / Timing Role: Precision, high-bandwidth transimpedance amplifier with input extending below system ground (V−). Use Value: 0.5 V beyond V− input range allows direct sensing of low-side shunts referenced to battery ground without level shifters. | Use Scenario: IF signal conditioning in Bluetooth/WiFi transceivers and handheld radios requiring wideband, low-distortion gain blocks. IC Role / Device Role / Timing Role: Dual-channel baseband or IF amplifier supporting 20–80 MHz signal bands with minimal group delay variation. Use Value: 270 MHz −3dB BW and 1° linear phase deviation to 30 MHz ensure flat group delay across multi-MHz channels. |
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 |
|---|---|---|---|
| LMH6658MM/NOPB | VSSOP-8 package same; identical electrical specs; different tape-and-reel packaging code | No functional difference; both qualified for same industrial temperature range (−40°C to +85°C) | Select LMH6658MM/NOPB only if specific reel size or packaging format required by SMT line |
| THS3202DGN | Higher slew rate (3000 V/µs), wider bandwidth (1.8 GHz), but higher supply current (12.5 mA/ch) and no input beyond V− | Better for ultrafast pulse amplification; unsuitable for ground-referenced low-voltage sensing | Choose THS3202DGN only when >1 GHz bandwidth and >2000 V/µs slew are mandatory and supply budget permits |
Compared with LMH6658MM/NOPB, LMH6658MA/NOPB offers identical performance in a standard VSSOP-8 footprint but differs in reel packaging; versus THS3202DGN, it trades raw speed for lower power, rail-compatible inputs, and cost efficiency in video and data-acquisition roles.
Availability
LMH6658MA/NOPB is available at Aetrix Electronics and suitable for video signal buffering, ADC driver interface, and current sense amplification requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant lead-free assembly.
Supply support for LMH6658MA/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 specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-performance signal chain solutions.
The LMH6657/LMH6658 product line was engineered for cost-sensitive, high-speed analog signal conditioning in portable video, communications, and instrumentation - prioritizing bandwidth, low distortion, and single-supply usability without sacrificing robustness.
FAQ
What is the maximum operating supply voltage for LMH6658MA/NOPB?
The LMH6658MA/NOPB supports a supply voltage range of 3 V to 12 V (V+ − V−), with absolute maximum rating of 12.6 V. Operation at 12 V is fully characterized per datasheet Section 6.3, and thermal limits remain within specification up to 85°C ambient when mounted on standard PCBs with appropriate copper pour.
Does LMH6658MA/NOPB support true single-supply operation with input signals near ground?
Yes, LMH6658MA/NOPB features an input common-mode voltage range extending 0.5 V below V−, enabling direct amplification of signals referenced to system ground (e.g., 0 V–2.5 V) without negative supply or level-shifting circuitry - confirmed in Section 6.5 Electrical Characteristics and Figure 30 ΔVOS vs. VOUT.
What is the guaranteed −3dB bandwidth of LMH6658MA/NOPB at AV = +1?
The LMH6658MA/NOPB guarantees a minimum −3dB bandwidth of 220 MHz and typical value of 270 MHz at AV = +1 under 5 V single-supply conditions with RL = 100 Ω and VOUT = 200 mVPP, as specified in Table 6.5 SSBW parameter. This is validated across temperature and process corners.
Is LMH6658MA/NOPB pin-compatible with other dual op-amps in VSSOP-8 packages?
No - LMH6658MA/NOPB uses a proprietary pinout (OUT A, −IN A, +IN A, V−, V+, −IN B, +IN B, OUT B) not shared with industry-standard dual op-amps like TLV2372 or OPA2350. Layout reuse requires verification against TI's DBV package drawing and Pin Configuration diagram (Section 5 of SNOSA35G).
What video standards does LMH6658MA/NOPB meet for differential gain and phase?
LMH6658MA/NOPB meets NTSC video specifications with guaranteed 0.03% differential gain error and 0.10° differential phase error at f = 5 MHz, RL = 150 Ω, and VCM = 2 V - measured per standard video test conditions defined in Section 6.5 DG/DP parameters and confirmed in Figure 12 DG/DP vs. IRE.
LMH6658MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
LMH6658MA/NOPB FAQ
1.How can I place an order for LMH6658MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6658MA/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 LMH6658MA/NOPB reliable?
The price and inventory of LMH6658MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6658MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6658MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6658MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6658MA/NOPB?
LMH6658MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6658MA/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 LMH6658MA/NOPB?
For technical support, including LMH6658MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6658MA/NOPB requirements.
6.How does Aetrix verify that LMH6658MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6658MA/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 LMH6658MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6658MA/NOPB?
All LMH6658MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6658MA/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 LMH6658MA/NOPB part is unused and in its original packaging.
Return procedure for LMH6658MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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