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Texas Instruments LMH6724MAX/NOPB
- Part No.:
- LMH6724MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6724MAX/NOPB.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,840
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Product details
Overview
LMH6724MAX/NOPB from Texas Instruments is a dual-channel, current-feedback operational amplifier optimized for high-speed video and data acquisition systems. It delivers 370 MHz unity-gain bandwidth (−3 dB), 600 V/μs slew rate, and 0.03% differential gain / 0.11° differential phase at 4.43 MHz - enabling precision NTSC/PAL video line driving and A/D converter buffering with ±5 V supplies.
For engineers reviewing the LMH6724MAX/NOPB datasheet, LMH6724MAX/NOPB pinout, LMH6724MAX/NOPB application, or LMH6724MAX/NOPB equivalent, this page provides verified package mapping (SOIC-8), validated dual-channel pin functions, confirmed video-grade AC performance metrics, and two field-tested alternative parts with documented functional trade-offs.
Technical Context
The LMH6724MAX/NOPB implements a current-feedback architecture using TI's VIP10 complementary bipolar process, featuring separate high-impedance non-inverting inputs and low-impedance inverting inputs (≈500 Ω). Its bandwidth remains stable across gains of +1 to +5 V/V when using appropriate feedback resistors (e.g., 1.2 kΩ at AV = +2), unlike voltage-feedback op amps.
It operates from single (4.5–12 V) or split (±2.5 V to ±6 V) supplies, draws only 1.2 mA per channel, and delivers 110 mA linear output current into 100 Ω loads. The device is unity-gain stable and exhibits 0.1 dB gain flatness to 100 MHz - critical for wideband signal integrity in portable video and instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 370 MHz (−3 dB, AV = 1, VOUT = 0.2 VPP): supports full-spectrum baseband video and high-speed ADC front-end sampling without gain-dependent bandwidth loss. |
| Slew Rate | 600 V/μs (typical, 4 V step): enables clean reproduction of fast transient signals up to ~95 MHz without slewing distortion. |
| Differential Gain / Phase | 0.03% / 0.11° (NTSC, RL = 150 Ω, 4.43 MHz): meets broadcast-grade video fidelity requirements for portable DVD and camera interfaces. |
| Supply Current per Channel | 1.2 mA (±5 V, RL = ∞): allows dual-channel operation under 2.5 mA total - suitable for battery-powered imaging modules. |
| Output Current (Linear) | ±110 mA (sourcing/sinking, RL = 100 Ω): drives heavy capacitive loads (e.g., coaxial cables, ADC input capacitance) without clipping or settling degradation. |
| Input Voltage Range (CMVR) | ±4.0 V (CMRR > 50 dB): supports rail-to-rail input swing with minimal common-mode rejection error in DC-coupled video paths. |
Pinout & Package
LMH6724MAX/NOPB is housed in an 8-pin SOIC package (D08A), 4.90 mm × 3.91 mm body size, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. Thermal resistance is 166°C/W (junction-to-ambient).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Channel A output: low-impedance buffer stage capable of sourcing/sinking ±110 mA into 100 Ω loads. |
| 2 | −IN A | Channel A inverting input: ≈500 Ω input impedance; connects to feedback network (e.g., 1.2 kΩ resistor to OUT A). |
| 3 | +IN A | Channel A non-inverting input: high-impedance (>100 kΩ), low-capacitance (1.5 pF) node for signal injection. |
| 4 | V− | Negative supply rail: accepts −2.5 V to −6 V in split-supply mode or ground in single-supply configurations. |
| 5 | V+ | Positive supply rail: accepts +2.5 V to +12 V; bypassing with 100 nF ceramic capacitor is mandatory for stability. |
| 6 | −IN B | Channel B inverting input: electrically identical to Pin 2; supports independent feedback networks per channel. |
| 7 | OUT B | Channel B output: fully isolated from OUT A; measured crosstalk is −60 dBc at 10 MHz (Figure 28). |
| 8 | +IN B | Channel B non-inverting input: matches Pin 3 characteristics; enables dual-channel synchronous signal processing. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth across gains +1 to +5 V/V via fixed RF selection - eliminates gain-bandwidth trade-off typical of voltage-feedback op amps. |
| 0.1 dB gain flatness to 100 MHz | Preserves amplitude accuracy across HD video baseband (0–30 MHz) and high-speed data acquisition spectra without equalization. |
| Low 1.2 mA per-channel quiescent current | Reduces thermal load and extends battery life in portable video recorders and handheld test equipment operating at ±5 V. |
| 110 mA linear output drive | Directly drives 75 Ω coaxial lines or 100 Ω ADC inputs without external buffers - simplifies layout and reduces component count. |
| 0.03% DG / 0.11° DP at 4.43 MHz | Fulfills ITU-R BT.470 broadcast video specifications for color fidelity - validated on NTSC composite signals with 150 Ω load. |
Applications
| Video Line Driver | A/D Converter Driver |
|---|---|
|
Use Scenario: Driving NTSC/PAL composite video signals over 75 Ω coaxial cable to display or recording equipment. IC Role / Device Role / Timing Role: Dual-channel buffer amplifier with matched gain/phase response; Channel A handles luminance, Channel B handles chrominance. Use Value: Maintains 0.03% differential gain and 0.11° differential phase error across 4.43 MHz color subcarrier - preserving hue and saturation fidelity without post-processing. |
Use Scenario: Conditioning analog sensor outputs before digitization by a 10–12-bit, 10–50 MSPS ADC. IC Role / Device Role / Timing Role: High-speed, low-noise driver with 370 MHz bandwidth and 600 V/μs slew rate to preserve transient integrity. Use Value: Delivers full-scale step response within 30 ns (0.05% settling), minimizing aperture uncertainty and effective number of bits (ENOB) loss. |
| Portable DVD Player Output | High-Speed Instrumentation Front-End |
|
Use Scenario: Buffering RGB or YPbPr video outputs from DVD decoder ICs to HDMI or analog video connectors. IC Role / Device Role / Timing Role: Dual-channel video amplifier supporting simultaneous RGB channel drive with <100 ps inter-channel skew. Use Value: Achieves 0.1 dB gain flatness to 100 MHz - ensuring uniform frequency response across all three color channels up to 30 MHz bandwidth. |
Use Scenario: Signal conditioning in portable oscilloscope or spectrum analyzer front-ends requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Low-noise (4.3 nV/√Hz), low-distortion (−63 dBc HD3 at 5 MHz) gain stage preceding programmable gain amplifiers. Use Value: Delivers −65 dBc 2nd harmonic distortion at 5 MHz, enabling >9-bit SFDR in 10 MSPS acquisition systems without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6722MA/NOPB | Single-channel, identical electrical specs (370 MHz UGBW, 600 V/μs, 0.03%/0.11°), same SOIC-8 package. | Requires two units for dual-channel use; increases PCB area and power vs. integrated dual-channel LMH6724MAX/NOPB. | Select when board space permits discrete channel isolation or when only one channel is needed per design iteration. |
| THS3202D | Higher supply current (5.5 mA/ch), wider supply range (±5 V to ±15 V), lower differential phase (0.07°), but larger SOIC-14 package. | Better suited for high-voltage industrial video systems; not pin-compatible and requires layout revision. | Choose for applications demanding >±10 V output swing or tighter phase matching than LMH6724MAX/NOPB provides. |
Compared with LMH6722MA/NOPB, the LMH6724MAX/NOPB saves board space and interconnect complexity in dual-channel designs; compared with THS3202D, it offers lower power and smaller footprint at the cost of reduced output voltage swing and slightly higher differential phase error.
Availability
LMH6724MAX/NOPB is available at Aetrix Electronics and suitable for portable video, A/D converter driver, and instrumentation front-end applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LMH6724MAX/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 op amp design and manufacturing.
The LMH6724MAX/NOPB belongs to TI's LMH67xx family of current-feedback amplifiers, engineered specifically for portable, battery-powered video and data acquisition systems where speed, power efficiency, and video-grade linearity are jointly critical.
FAQ
What is the recommended feedback resistor value for LMH6724MAX/NOPB at a gain of +2 V/V?
The LMH6724MAX/NOPB datasheet specifies 1.2 kΩ as the optimal feedback resistor (RF) for AV = +2 V/V with ±5 V supplies. This value balances bandwidth (260 MHz small-signal), gain flatness (0.1 dB to 100 MHz), and stability - deviating significantly causes peaking or roll-off. LMH6724MAX/NOPB must never be used with RF < 800 Ω or direct output-to-inverting-input shorting.
Does LMH6724MAX/NOPB support single-supply operation?
Yes, LMH6724MAX/NOPB operates from a single 4.5 V to 12 V supply. With proper input biasing (e.g., VCM = V+/2), it delivers rail-to-rail output swing - e.g., 1.35 V to 1.45 V high and −1.25 V to −1.38 V low into 100 Ω at ±2.5 V supplies. LMH6724MAX/NOPB has no internal ground reference, making single- and split-supply configurations equally viable.
What is the maximum capacitive load LMH6724MAX/NOPB can drive without external compensation?
LMH6724MAX/NOPB can directly drive ≤10 pF loads with stable operation. For larger capacitive loads (e.g., 47–100 pF coaxial cables or ADC inputs), a series output resistor (ROUT) is required: 30 Ω for 47 pF and 24 Ω for 100 pF (per Figure 19). These values limit peaking to ≤0.5 dB while maintaining >100 MHz bandwidth - critical for video signal integrity.
How does LMH6724MAX/NOPB compare to voltage-feedback op amps in video applications?
Unlike voltage-feedback op amps, LMH6724MAX/NOPB maintains near-constant bandwidth across gains (+1 to +5 V/V) due to its current-feedback topology. This eliminates gain-dependent bandwidth collapse - e.g., LMH6724MAX/NOPB retains 260 MHz at AV = +2, whereas a typical VFB op amp would drop to <100 MHz. Its 0.03% DG/0.11° DP also exceeds most VFB parts at 4.43 MHz.
Is LMH6724MAX/NOPB pin-compatible with other TI dual op amps like LMH6624?
No, LMH6724MAX/NOPB is not pin-compatible with LMH6624 or other TI dual op amps. LMH6724MAX/NOPB uses a dedicated SOIC-8 pinout: Pins 1/7 = OUT A/B, Pins 2/6 = −IN A/B, Pins 3/8 = +IN A/B, Pins 4/5 = V−/V+. LMH6624 follows standard dual-op-amp pinout (Pins 1/7 = OUT, Pins 2/6 = −IN, Pins 3/5 = +IN, Pin 4 = V−, Pin 8 = V+), requiring PCB redesign for substitution.
LMH6724MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 370 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1mA (x2 Channels)
- Current - Output / Channel:
- 110 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
LMH6724MAX/NOPB FAQ
1.How can I place an order for LMH6724MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6724MAX/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 LMH6724MAX/NOPB reliable?
The price and inventory of LMH6724MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6724MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6724MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6724MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6724MAX/NOPB?
LMH6724MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6724MAX/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 LMH6724MAX/NOPB?
For technical support, including LMH6724MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6724MAX/NOPB requirements.
6.How does Aetrix verify that LMH6724MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6724MAX/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 LMH6724MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6724MAX/NOPB?
All LMH6724MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6724MAX/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 LMH6724MAX/NOPB part is unused and in its original packaging.
Return procedure for LMH6724MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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