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Texas Instruments LMH6552MAX/NOPB
- Part No.:
- LMH6552MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6552MAX/NOPB.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,074
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Product details
Overview
LMH6552MAX/NOPB from Texas Instruments is a 1.5-GHz fully differential current-feedback amplifier designed as a high-fidelity ADC driver for 14-bit systems like the ADC14DS105, delivering 86 dBc SFDR and 74 dBc SNR up to 40 MHz. It supports single-ended-to-differential conversion, operates from ±2.5 V to ±5 V supplies, and features 3800-V/µs slew rate and 10-ns 0.1% settling time.
For engineers reviewing the LMH6552MAX/NOPB datasheet, LMH6552MAX/NOPB pinout, LMH6552MAX/NOPB application, or LMH6552MAX/NOPB equivalent, key selection criteria include differential output common-mode control range (±3.8 V), −92 dBc HD2 at 20 MHz, 450-MHz 0.1-dB flatness, and SOIC-8 thermal resistance (150°C/W).
Technical Context
The LMH6552MAX/NOPB uses a proprietary differential current-mode input stage enabling stable operation at gains >1 without sacrificing bandwidth flatness or harmonic distortion. Its integrated common-mode feedback loop allows independent control of output common-mode voltage (VCM) while maintaining precise differential gain accuracy.
It supports both AC- and DC-coupled inputs and delivers full performance across supply voltages from ±2.5 V to ±5 V, with small-signal bandwidth degrading from 1500 MHz at ±5 V to 1100 MHz at ±2.5 V - directly tied to transimpedance gain and power supply headroom.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal BW | 1500 MHz at ±5 V, AV = 1 - enables direct RF/IF signal amplification without intermediate stages |
| Slew Rate | 3800 V/µs - supports clean 2-V step response with 600-ps rise/fall time |
| HD2 @ 20 MHz | −92 dBc - ensures minimal even-order distortion in baseband and IF sampling applications |
| 0.1-dB Flatness | 450 MHz - maintains amplitude fidelity across wideband video, communications, and test equipment signals |
| Supply Range | ±2.5 V to ±5 V (4.5–12 V total) - compatible with both low-voltage portable and high-performance bench systems |
| Enable Time | 15 ns - allows fast power cycling in time-gated or burst-mode signal chains |
| Input RIN | 15 Ω differential - matches standard 50-Ω source impedances with minimal reflection when properly terminated |
Pinout & Package
The LMH6552MAX/NOPB is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with exposed die attach pad (DAP) for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: −IN | Inverting Input | Differential current-mode input node; requires matched termination for optimal CMRR |
| 2: VCM | Output Common-Mode Control | Analog input setting output common-mode voltage; 0.995–1.012 V/V gain with ±3.8 V range |
| 3: V+ | Positive Supply | Accepts +2.5 V to +5 V; bypassing critical for high-frequency PSRR above 100 MHz |
| 4: +OUT | Non-Inverting Output | High-speed differential output; 14.8–15.4 VPP swing at ±5 V with 500-Ω load |
| 5: −OUT | Inverting Output | Complementary differential output; balance error <−60 dB below 1 MHz ensures ADC input symmetry |
| 6: V− | Negative Supply | Accepts −2.5 V to −5 V; must be symmetric to V+ for optimal distortion performance |
| 7: EN | Enable/Shutdown Control | Active-high logic input; 3-V threshold at ±5 V, 0.5-V threshold at ±2.5 V |
| 8: +IN | Non-Inverting Input | Differential current-mode input node; paired with Pin 1 for balanced signal injection |
Key Features
| Feature | Design Value |
|---|---|
| Differential current-feedback architecture | Enables stable gain ≥2 without peaking or phase margin loss, unlike voltage-feedback alternatives |
| Integrated VCM control loop | Decouples output common-mode setting from input common-mode, simplifying level-shifting interfaces to ADCs |
| 450-MHz 0.1-dB flatness | Preserves amplitude integrity across multi-octave signals such as LTE, DOCSIS, and radar IF waveforms |
| −92 dBc HD2 at 20 MHz | Meets stringent SFDR requirements for 14-bit ADC drivers in communications receivers and spectrum analyzers |
| SOIC-8 with DAP | Provides 150°C/W junction-to-ambient thermal resistance - suitable for continuous 22.5-mA quiescent operation |
Applications
| Differential ADC Driver | Video Over Twisted Pair |
|---|---|
Use Scenario: Driving the ADC14DS105 14-bit, 105-MSPS dual-channel ADC in high-speed data acquisition systems. IC Role / Device Role / Timing Role: Fully differential amplifier providing matched gain, phase, and common-mode control to maximize ADC dynamic range. Use Value: Delivers 86 dBc SFDR and 74 dBc SNR up to 40 MHz - directly enabling high-fidelity digitization of wideband analog inputs. | Use Scenario: Transmitting HD video signals over unshielded twisted-pair cabling in broadcast infrastructure. IC Role / Device Role / Timing Role: Differential line driver converting single-ended video sources to robust balanced transmission lines. Use Value: 1.5-GHz bandwidth and −74 dBc HD2 at 70 MHz preserve chroma/luma integrity and minimize crosstalk-induced artifacts. |
| Differential Line Driver | IF/RF Amplifier |
Use Scenario: Amplifying and transmitting differential clock or data signals across backplanes or between PCBs. IC Role / Device Role / Timing Role: High-speed differential buffer with 10-ns settling and 3800-V/µs slew rate for low-jitter signal distribution. Use Value: 0.1% settling in 10 ns ensures sub-picosecond timing uncertainty in multi-GHz serial links and JESD204B interfaces. | Use Scenario: Amplifying intermediate-frequency outputs from mixers in software-defined radio front ends. IC Role / Device Role / Timing Role: Wideband IF gain block operating from DC to 1.25 GHz large-signal bandwidth at AV = 1. Use Value: 800-MHz bandwidth at AV = 4 supports high-gain IF stages without external compensation or stability compromises. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IRGT | Lower 1.1-GHz SSBW, 2000-V/µs slew rate, no integrated VCM control - requires external feedback network | Best suited for cost-sensitive, lower-bandwidth ADC drivers where VCM is fixed or externally managed | Choose THS4561IRGT when supply headroom is constrained to ±2.75 V and VCM flexibility is not required |
| ADA4940-1ARZ | 1.4-GHz SSBW, 2900-V/µs slew, integrated VCM control, but higher 2.1-nV/√Hz input noise vs. LMH6552's 1.1 nV/√Hz | Preferred for precision low-noise applications where SFDR >88 dBc is less critical than SNR optimization | Choose ADA4940-1ARZ when driving 16-bit ADCs with narrowband signals and tighter noise budgets |
Compared with THS4561IRGT and ADA4940-1ARZ, the LMH6552MAX/NOPB uniquely combines 1.5-GHz bandwidth, 3800-V/µs slew rate, and integrated VCM control - making it optimal for high-SFDR, wideband ADC driving where layout simplicity and timing fidelity are prioritized.
Availability
LMH6552MAX/NOPB is available at Aetrix Electronics and suitable for high-speed data acquisition, communications infrastructure, and test & measurement equipment requiring stable component supply and guaranteed long-term availability.
Supply support for LMH6552MAX/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 90 years of innovation in high-performance signal chain solutions.
The LMH6552MAX/NOPB belongs to TI's high-speed differential amplifier product line, engineered specifically for demanding ADC interface, RF/IF signal conditioning, and wideband instrumentation applications.
FAQ
What is the maximum small-signal bandwidth of the LMH6552MAX/NOPB?
The LMH6552MAX/NOPB achieves a 1500-MHz −3-dB small-signal bandwidth at ±5 V supply, AV = 1, and RL = 1 kΩ. Bandwidth scales with supply voltage: it drops to 1100 MHz at ±2.5 V under identical conditions. This voltage-dependent bandwidth stems from the current-feedback architecture's transimpedance gain dependency on supply headroom.
Does the LMH6552MAX/NOPB support single-ended input configurations?
Yes, the LMH6552MAX/NOPB supports single-ended-to-differential conversion using standard resistor networks (e.g., RF = RG = 357 Ω). The datasheet provides verified schematics and performance data for this configuration, including 450-MHz 0.1-dB flatness and −92 dBc HD2 at 20 MHz with single-ended input.
What is the function of the VCM pin on the LMH6552MAX/NOPB?
The VCM pin on the LMH6552MAX/NOPB sets the output common-mode voltage independently of the input common-mode range. It accepts a DC voltage from ±3.8 V and controls the average of +OUT and −OUT with 0.995–1.012 V/V gain, enabling seamless interfacing with ADCs requiring specific input common-mode levels.
How does the enable pin (EN) operate on the LMH6552MAX/NOPB?
The EN pin on the LMH6552MAX/NOPB is an active-high shutdown control with voltage thresholds dependent on supply: 3 V minimum at ±5 V operation and 0.5 V minimum at ±2.5 V. Enable/disable transitions occur in 15 ns, and shutdown current is 500–600 µA - allowing rapid power gating in burst-mode systems.
Can the LMH6552MAX/NOPB drive 50-Ω differential loads directly?
No, the LMH6552MAX/NOPB is not specified to drive 50-Ω differential loads (i.e., 25 Ω per side) continuously. Its linear output current is ±70 mA at ±5 V, limiting safe differential swing to ≤14.8 VPP into 500-Ω loads. For 50-Ω systems, external 1:4 impedance transformation or buffering is required to avoid distortion and thermal overload.
LMH6552MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®, PowerWise®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 3800V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.5 GHz
- Current - Input Bias:
- 60 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 22.5mA
- Current - Output / Channel:
- 80 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
LMH6552MAX/NOPB FAQ
1.How can I place an order for LMH6552MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6552MAX/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 LMH6552MAX/NOPB reliable?
The price and inventory of LMH6552MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6552MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6552MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6552MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6552MAX/NOPB?
LMH6552MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6552MAX/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 LMH6552MAX/NOPB?
For technical support, including LMH6552MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6552MAX/NOPB requirements.
6.How does Aetrix verify that LMH6552MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6552MAX/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 LMH6552MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6552MAX/NOPB?
All LMH6552MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6552MAX/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 LMH6552MAX/NOPB part is unused and in its original packaging.
Return procedure for LMH6552MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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