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Texas Instruments LMH6723MAX/NOPB
- Part No.:
- LMH6723MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6723MAX/NOPB.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,647
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Product details
Overview
LMH6723MAX/NOPB from Texas Instruments is a single-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 110 mA linear output current while consuming only 1.2 mA supply current at ±5 V. It supports NTSC/PAL video with 0.03% differential gain and 0.11° differential phase error, and operates from 4.5 V to 12 V supplies.
For engineers reviewing the LMH6723MAX/NOPB datasheet, LMH6723MAX/NOPB pinout, LMH6723MAX/NOPB application, or LMH6723MAX/NOPB equivalent, key selection criteria include its current-feedback architecture, SOT-23-5 package compatibility, video-grade distortion performance (HD2/HD3 < −63 dBc at 5 MHz), and stable operation with 1.2 kΩ feedback resistor at AV = +2.
Technical Context
The LMH6723MAX/NOPB uses Texas Instruments' VIP10 complementary bipolar process to achieve high-speed current-feedback topology - distinct from voltage-feedback op amps - enabling near-constant bandwidth across gains by adjusting feedback resistance (RF). Its inverting input presents ~500 Ω impedance, requiring careful RF selection (e.g., 1.2 kΩ for AV = +2) to balance bandwidth, flatness, and stability.
It features no internal ground reference, supporting both single-supply (4.5–12 V) and split-supply (±2.5 V to ±6 V) configurations. The device maintains 0.1 dB gain flatness to 100 MHz and delivers 90–110 MHz large-signal bandwidth (VOUT = 4 VPP) - critical for line drivers and A/D front-ends where transient fidelity and settling time (<30 ns to 0.05%) are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 370 MHz (−3 dB, AV = 1, VOUT = 0.2 VPP): enables wideband signal conditioning without gain-dependent bandwidth collapse. |
| Slew Rate | 600 V/μs (typical): supports fast-rising video sync pulses and high-fidelity pulse amplification without slew-induced distortion. |
| Supply Current | 1.2 mA per amplifier (±5 V): allows integration into battery-powered portable video equipment with minimal thermal impact. |
| Differential Gain/Phase | 0.03% / 0.11° (NTSC, 4.43 MHz, RL = 150 Ω): meets broadcast video fidelity requirements without external calibration. |
| Output Current | ±110 mA linear sourcing/sinking (RL = ∞): drives 75 Ω video lines or ADC input buffers directly without external gain stages. |
| Input Voltage Range | ±4.0 V common-mode (CMRR > 50 dB): accommodates rail-to-rail input signals in ±5 V systems without clipping. |
| Settling Time | 30 ns to 0.05% (2 V step): ensures accurate sampling in high-speed data acquisition front-ends. |
Pinout & Package
LMH6723MAX/NOPB is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size. This compact, surface-mount package supports high-density PCB layouts and thermal performance of RθJA = 230 °C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUT | Amplifier output node; capable of ±110 mA linear drive into 100 Ω loads with <30 ns settling. |
| 2 | V− | Negative supply terminal; accepts −2.5 V to −6 V in split-supply mode or GND in single-supply configuration. |
| 3 | +IN | Non-inverting input; high-impedance (100 kΩ), low-capacitance (1.5 pF) node for precision signal routing. |
| 4 | −IN | Inverting input; low-impedance (~500 Ω) current-summing node defining feedback path behavior and RF dependency. |
| 5 | V+ | Positive supply terminal; supports 4.5–12 V single supply or +2.5 V to +6 V in dual-supply operation. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables stable, gain-independent bandwidth control via external RF resistor - unlike voltage-feedback op amps - simplifying high-frequency gain staging. |
| Video-optimized distortion performance | 0.03% DG / 0.11° DP at 4.43 MHz ensures broadcast-compliant color fidelity without post-processing compensation. |
| Wide supply range | Operates from 4.5 V to 12 V single supply or ±2.5 V to ±6 V dual supply - suitable for portable DVD players, handheld scopes, and industrial vision systems. |
| Low-noise input stage | 4.3 nV/√Hz voltage noise and 6 pA/√Hz current noise preserve SNR in high-gain analog front-ends up to 100 MHz. |
| Unity-gain stable | No external compensation required; supports AV = 1 configurations (e.g., buffer, cable driver) with 370 MHz bandwidth and 0.1 dB flatness to 100 MHz. |
Applications
| Line Driver | A/D Driver |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial video cables in portable DVD players and security camera modules. IC Role / Device Role / Timing Role: High-current, low-distortion buffer amplifying baseband CVBS or Y/C signals before transmission. Use Value: Maintains 0.03% differential gain and 0.11° phase accuracy over full NTSC bandwidth, eliminating need for external peaking or equalization. |
Use Scenario: Conditioning analog sensor outputs prior to high-speed SAR or pipeline ADC sampling. IC Role / Device Role / Timing Role: Fast-settling gain stage delivering 2 V step signals with ≤30 ns to 0.05% - matching ADC aperture timing windows. Use Value: 600 V/μs slew rate and 370 MHz bandwidth ensure full-scale transitions settle before ADC conversion begins, minimizing code errors. |
| Portable Video | Single-Supply Video Processing |
|
Use Scenario: Signal amplification in battery-powered handheld oscilloscopes and field test monitors. IC Role / Device Role / Timing Role: Low-power, high-bandwidth op amp powering active probes and display interface chains. Use Value: 1.2 mA supply current at ±5 V enables >10-hour operation on 2000 mAh Li-ion packs while preserving 100+ MHz signal integrity. |
Use Scenario: RGB or component video signal conditioning in 5 V-only embedded displays and media processors. IC Role / Device Role / Timing Role: Single-supply configured driver maintaining DC-coupled signal path with rail-to-rail input common-mode range. Use Value: ±4.0 V CMVR at ±5 V supplies allows direct interfacing to 0–5 V video DAC outputs without level-shifting circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6720MA/NOPB | Lower 200 MHz UGBW, 350 V/μs slew rate, 2.5 mA supply current; same SOT-23-5 package. | Reduced bandwidth limits use in >100 MHz video or fast-settling A/D drivers. | Select when lower power is not critical and 200 MHz bandwidth suffices for SD video or medium-speed data acquisition. |
| THS3201DGN | Higher 1.8 GHz UGBW, 3000 V/μs slew rate, 12 mA supply current; 8-pin MSOP package. | Excess speed and current demand more board area and power - overkill for portable video but suited for test equipment front-ends. | Choose for ultra-high-speed applications (>500 MHz) where LMH6723MAX/NOPB's 370 MHz bandwidth is insufficient. |
Compared with LMH6723MAX/NOPB, LMH6720MA/NOPB trades bandwidth and power efficiency for cost-sensitive SD video roles, while THS3201DGN provides headroom for instrumentation-grade signal paths at higher supply current and layout complexity.
Availability
LMH6723MAX/NOPB is available at Aetrix Electronics and suitable for portable video, A/D front-end, and line driver applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and consumer OEM programs.
Supply support for LMH6723MAX/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 amplifiers and precision signal chain solutions.
The LMH6723MAX/NOPB belongs to TI's LMH high-speed current-feedback op amp family, designed specifically for portable, video, and data-acquisition systems demanding low power, high fidelity, and robust AC performance from compact packages.
FAQ
What is the recommended feedback resistor value for LMH6723MAX/NOPB at AV = +2?
The LMH6723MAX/NOPB datasheet specifies 1.2 kΩ as the recommended feedback resistor (RF) for non-inverting gain of +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 - avoiding peaking or oscillation. Deviating significantly below 1.2 kΩ risks overshoot; increasing it reduces bandwidth. LMH6723MAX/NOPB requires this RF value for predictable current-feedback behavior.
Does LMH6723MAX/NOPB support single-supply operation?
Yes, LMH6723MAX/NOPB operates from a single 4.5 V to 12 V supply. Its input common-mode range extends to ±4.0 V (at ±5 V supplies), and output swings within 0.3 V of rails under light load - enabling direct interfacing with 0–5 V video DACs or microcontroller ADC references. No level-shifting or biasing circuitry is needed for many 5 V systems, simplifying design of portable video interfaces using LMH6723MAX/NOPB.
What is the maximum capacitive load LMH6723MAX/NOPB can drive stably?
LMH6723MAX/NOPB can drive up to 100 pF capacitive load stably when paired with a series output resistor (ROUT) of ~48 Ω (per TI's "Suggested ROUT vs. CL" curves). Without ROUT, capacitive loading degrades phase margin and may cause ringing or oscillation. For 100 pF loads, adding 48 Ω in series with the output maintains ≤0.5 dB peaking and preserves 30 ns settling time - critical for driving ADC input capacitance or long PCB traces in LMH6723MAX/NOPB-based designs.
How does LMH6723MAX/NOPB compare to voltage-feedback op amps in bandwidth vs. gain trade-offs?
Unlike voltage-feedback op amps - whose bandwidth drops inversely with closed-loop gain - LMH6723MAX/NOPB uses current-feedback architecture, allowing near-constant bandwidth across gains by adjusting the feedback resistor (RF). At AV = +1, LMH6723MAX/NOPB achieves 370 MHz; at AV = +2, it retains 260 MHz. This eliminates gain-dependent bandwidth collapse, making LMH6723MAX/NOPB ideal for programmable-gain video or instrumentation amplifiers where consistent high-frequency response is mandatory.
Is LMH6723MAX/NOPB pin-compatible with other devices in the LMH672x family?
LMH6723MAX/NOPB (SOT-23-5) is not pin-compatible with LMH6724 (SOIC-8 dual) or LMH6723 in SOIC-8 (LMH6723MA/NOPB), which has different pin count and assignment. However, the SOT-23-5 variant shares identical electrical specifications and functional pinout (V+, −IN, +IN, V−, OUTPUT) with LMH6723MF/NOPB - confirming LMH6723MAX/NOPB is a direct replacement for that variant in space-constrained layouts requiring the same performance profile.
LMH6723MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- -
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 370 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1mA
- 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
LMH6723MAX/NOPB FAQ
1.How can I place an order for LMH6723MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MAX/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 LMH6723MAX/NOPB reliable?
The price and inventory of LMH6723MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6723MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MAX/NOPB?
LMH6723MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MAX/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 LMH6723MAX/NOPB?
For technical support, including LMH6723MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MAX/NOPB requirements.
6.How does Aetrix verify that LMH6723MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6723MAX/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 LMH6723MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6723MAX/NOPB?
All LMH6723MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MAX/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 LMH6723MAX/NOPB part is unused and in its original packaging.
Return procedure for LMH6723MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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