My Inquiry
My Account
Texas Instruments LMH6720MF/NOPB
- Part No.:
- LMH6720MF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- SOT-23-6
- Datasheet:
-
LMH6720MF/NOPB.pdf
- Description:
- IC AMP CURRENT FEEDBACK SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,918
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMH6720MF/NOPB from Texas Instruments is a single-channel, current-feedback video operational amplifier in a 6-pin SOT-23 package, delivering 400MHz small-signal bandwidth (AV = +2V/V), 1800V/μs slew rate, and TTL-compatible shutdown control. It achieves 0.02% differential gain and 0.01° differential phase error driving 150Ω NTSC video loads, making it suitable for high-speed analog video switching and distribution systems.
For engineers reviewing the LMH6720MF/NOPB datasheet, LMH6720MF/NOPB pinout, LMH6720MF/NOPB application, or LMH6720MF/NOPB equivalent, key selection criteria include shutdown timing (11ns turn-on / 7ns turn-off), low 5.6mA quiescent supply current, 500μA shutdown current, and verified performance at ±5V supplies with 75Ω/150Ω video load compatibility.
Technical Context
The LMH6720MF/NOPB employs Texas Instruments' VIP10 high-speed complementary bipolar process with current-feedback topology, enabling gain-independent bandwidth optimization via external feedback resistor tuning (recommended RF = 300Ω for AV = +2). Its input stage features ~180Ω inverting-input impedance and supports stable operation from unity gain to AV = ±6V/V.
Shutdown functionality is voltage-controlled (ONMIN = 2.0V, OFFMAX = 0.8V) and TTL-compatible; during disable, inputs and output enter high-impedance state (>1MΩ), reducing supply current to 500μA while maintaining rail-to-rail common-mode input range and ±3.9V linear output swing into 100Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 400MHz at 0.5VPP output - enables full HD baseband video signal amplification without attenuation |
| Slew Rate | 1800V/μs - supports fast transient response for composite sync pulses and digital video edges |
| Differential Gain / Phase | 0.02% / 0.01° at 4.43MHz - meets broadcast-grade NTSC video fidelity requirements |
| Supply Current | 5.6mA typical at ±5V - balances speed and power for portable and multi-channel video systems |
| Shutdown Current | 500μA - reduces system-level standby power in multiplexed video routing applications |
| Turn-on / Turn-off Time | 11ns / 7ns - enables sub-20ns channel switching for real-time video matrix routing |
| Input Voltage Range | ±2.2V common-mode - accommodates DC-coupled video signals with headroom for sync tips |
Pinout & Package
LMH6720MF/NOPB is housed in a 6-pin SOT-23 (DBV) package with exposed thermal pad (not electrically connected), optimized for high-frequency layout with minimal parasitic inductance. Pin 1 is marked by a dot; device orientation follows JEDEC MO-178 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Low-impedance (0.06Ω) buffered output capable of driving 70mA continuous into 100Ω loads |
| 2 (−IN) | Inverting Input | Current-feedback node with ~180Ω input impedance; requires matched RF for stability |
| 3 (+IN) | Non-inverting Input | High-impedance (2MΩ) input; used for unity-gain buffer or non-inverting configurations |
| 4 (V−) | Negative Supply Rail | Accepts −5V to −6.25V; must be bypassed with 0.1μF ceramic capacitor near pin |
| 5 (SD) | Shutdown Control | TTL-compatible logic input; <0.8V disables amplifier, >2.0V enables; floats high by internal pull-up |
| 6 (V+) | Positive Supply Rail | Accepts +5V to +6.25V; requires local 0.1μF ceramic bypass to ground |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables stable wideband operation across gains +1 to +6V/V without compensation redesign |
| TTL-compatible shutdown | Allows direct interface with FPGA/CPLD GPIO without level-shifting; supports <20ns channel switching |
| Video-optimized distortion performance | −58dBc HD2 / −70dBc HD3 at 20MHz ensures minimal color bleeding and luminance artifacts |
| Back-terminated 75Ω/150Ω drive capability | Validated for broadcast video systems requiring impedance-matched coaxial cable interfaces |
| Unity-gain stable | Operates reliably as buffer (AV = +1) with 600Ω feedback resistor - critical for video line drivers |
Applications
| HDTV Video Switching Matrix | NTSC/PAL Broadcast Signal Distribution |
|---|---|
Use Scenario: Routing multiple HD video sources (HDMI-derived analog RGB/YUV) to display outputs using analog crosspoint switches. IC Role / Device Role / Timing Role: High-speed buffer and gain stage between switch matrix output and 75Ω coaxial transmission line. Use Value: 400MHz bandwidth preserves edge integrity of 1080p/60Hz signals; 0.02% DG/0.01° DP prevents hue/saturation shift across 16-channel distribution. | Use Scenario: Amplifying and distributing legacy NTSC composite video from security DVRs to wall monitors over 100m coaxial runs. IC Role / Device Role / Timing Role: Final-stage driver with back-termination for impedance matching and reflection suppression. Use Value: 70mA output current drives long cables without sag; shutdown mode cuts power per channel during idle periods in multi-camera systems. |
| Programmable Gain Video Amplifier | High-Speed Analog Multiplexer |
Use Scenario: Digitally controlled gain adjustment in medical imaging front-ends where dynamic range must adapt to varying sensor output levels. IC Role / Device Role / Timing Role: Core gain element in digitally switched resistor network PGA architecture (Figure 36). Use Value: Fast 11ns enable time allows gain reconfiguration mid-frame; low 5.6mA ICC minimizes thermal drift during calibration sequences. | Use Scenario: Selecting one of eight video inputs for digitization in automated test equipment with minimal crosstalk and settling delay. IC Role / Device Role / Timing Role: Per-channel enable/disable amplifier acting as analog SPST switch with high off-isolation. Use Value: 7ns shutdown time enables <20ns channel-to-channel switching; high-Z output during disable prevents loading of shared bus lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6714MF/NOPB | No shutdown pin; 5-pin SOT-23; identical bandwidth (400MHz) and video specs (0.01% DG/0.01° DP) | Lacks channel enable/disable; suited for always-on video buffers or fixed-gain stages | Select when shutdown functionality is unnecessary and board space favors 5-pin footprint |
| THS3201DRBT | Higher 1.8GHz bandwidth but higher 12.5mA supply current; no integrated shutdown; SO-8 package | Better for RF/IF signal chains beyond video baseband; less optimized for composite video DG/DP | Select when >1GHz small-signal BW is required and power budget allows 2.2× higher ICC |
Compared with LMH6714MF/NOPB, LMH6720MF/NOPB adds precise TTL shutdown control at minor cost in pin count and identical video fidelity; versus THS3201DRBT, it trades raw bandwidth for lower power, smaller footprint, and broadcast-validated differential gain/phase performance.
Availability
LMH6720MF/NOPB is available at Aetrix Electronics and suitable for HDTV switching matrices, NTSC/PAL broadcast distribution systems, and programmable gain video amplifiers requiring stable component supply with guaranteed long-term availability.
Supply support for LMH6720MF/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 and embedded processing technologies, with decades of expertise in high-speed amplifier design and video signal conditioning.
The LMH6720MF/NOPB belongs to TI's LMH67xx wideband video op amp family, engineered specifically for broadcast-quality analog video systems demanding low distortion, precise gain flatness, and robust 75Ω/150Ω drive capability.
FAQ
What is the recommended feedback resistor value for LMH6720MF/NOPB at AV = +2V/V?
The LMH6720MF/NOPB datasheet specifies a recommended feedback resistor (RF) of 300Ω for non-inverting gain of +2V/V with ±5V supplies. This value delivers optimal bandwidth (400MHz), gain flatness (0.1dB to 120MHz), and stability. Lower RF values increase bandwidth but risk peaking and oscillation; higher values reduce bandwidth and improve phase margin. The inverting input impedance is ~180Ω, so RF must be selected to maintain proper loop dynamics.
Does LMH6720MF/NOPB support single-supply operation?
Yes, LMH6720MF/NOPB supports single-supply operation with VEE = 0V and VCC = +8V to +12.5V (e.g., +10V). However, the shutdown pin (SD) voltage thresholds shift: ONMIN becomes VCC/2 + 1.2V and OFFMAX becomes VCC/2 − 1.2V per datasheet Section 6.5. Input common-mode range remains rail-to-rail (0V to VCC), and output swing is typically ±3.4V into 100Ω. Decoupling and layout best practices remain unchanged.
How does LMH6720MF/NOPB differ from LMH6714MF/NOPB in video performance?
LMH6720MF/NOPB and LMH6714MF/NOPB share identical core video performance: both achieve 0.1dB gain flatness to 120MHz and deliver 0.02% differential gain / 0.01° differential phase at 4.43MHz into 150Ω. The primary distinction is functional: LMH6720MF/NOPB adds a TTL-compatible shutdown pin (Pin 5), enabling channel enable/disable, while LMH6714MF/NOPB is a 5-pin device without shutdown. LMH6714MF/NOPB has marginally better DG/DP (0.01%/0.01°) per datasheet Table 1.
What is the maximum continuous output current of LMH6720MF/NOPB?
The LMH6720MF/NOPB delivers up to 70mA continuous output current into a resistive load, as specified in the Electrical Characteristics table under "IOUT" (Output Current). This rating assumes operation within thermal limits: at ±5V supplies and ambient temperature ≤85°C, the 6-pin SOT-23 package (θJA = 198°C/W) can dissipate ~350mW before reaching 150°C junction temperature. For sustained 70mA into 100Ω, ensure adequate PCB copper area and airflow to maintain safe thermal operation.
Can LMH6720MF/NOPB be used in inverting configurations?
Yes, LMH6720MF/NOPB supports stable inverting configurations across gains −1V/V to −5V/V. For AV = −1V/V, a 600Ω feedback resistor is required for stability (buffer configuration). At higher inverting gains, RF must be adjusted per Figure 33 in the datasheet - e.g., RF = 300Ω for AV = −2V/V. The inverting input impedance remains ~180Ω, so RG (gain-setting resistor to ground) must be chosen to avoid excessive current draw and maintain bandwidth. Layout must minimize capacitance on the −IN node to prevent instability.
LMH6720MF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-6
- Series:
- VIP10™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Current Feedback
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 400 MHz
- Slew Rate:
- 1800V/µs
- Current - Supply:
- 5.6 mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply, Single/Dual (±):
- 8V ~ 12.5V, ±4V ~ 6.25V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-6
LMH6720MF/NOPB FAQ
1.How can I place an order for LMH6720MF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6720MF/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 LMH6720MF/NOPB reliable?
The price and inventory of LMH6720MF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6720MF/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6720MF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6720MF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6720MF/NOPB?
LMH6720MF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6720MF/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 LMH6720MF/NOPB?
For technical support, including LMH6720MF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6720MF/NOPB requirements.
6.How does Aetrix verify that LMH6720MF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6720MF/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 LMH6720MF/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6720MF/NOPB?
All LMH6720MF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6720MF/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 LMH6720MF/NOPB part is unused and in its original packaging.
Return procedure for LMH6720MF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMH6720MF/NOPB Tags
-
LT6552CS8#PBF
Analog Devices Inc.
-
LT6205IS5#TRPBF
Analog Devices Inc.
-
LT6206IMS8#TRPBF
Analog Devices Inc.
-
LT6552CDD#PBF
Analog Devices Inc.
-
LT6552IS8#PBF
Analog Devices Inc.
-
LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
-
AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
-
MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
