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Texas Instruments LMH6723MA/NOPB
- Part No.:
- LMH6723MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMH6723MA/NOPB.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,383
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Product details
Overview
LMH6723MA/NOPB from Texas Instruments is a single-channel, current-feedback operational amplifier optimized for high-speed video and portable signal conditioning. It delivers 370 MHz unity-gain bandwidth (−3 dB), 600 V/μs slew rate, and 110 mA linear output current while consuming only 1 mA supply current from ±5 V supplies. It serves as a line driver or A/D converter input buffer in battery-powered video systems requiring NTSC/PAL compliance.
For engineers reviewing the LMH6723MA/NOPB datasheet, LMH6723MA/NOPB pinout, LMH6723MA/NOPB application, or LMH6723MA/NOPB equivalent, key selection criteria include its current-feedback architecture, SOT-23-5 and SOIC-8 package options, differential gain/phase performance (0.03%/0.11°), and stable operation at gains ≥ +1 V/V without external compensation.
Technical Context
The LMH6723MA/NOPB uses Texas Instruments' VIP10 complementary bipolar process to implement a current-feedback topology with low input bias current (±4 µA), high input impedance at the non-inverting terminal (100 kΩ), and low inverting-input resistance (~500 Ω). Its feedback path accepts fixed RF values (e.g., 1200 Ω) to maintain bandwidth independence from closed-loop gain - unlike voltage-feedback op amps.
It operates over ±2.5 V to ±6 V (4.5–12 V single-supply) with rail-to-rail output swing capability under 100 Ω load (±3.5 V typical), supports unity-gain stability, and exhibits 0.1 dB gain flatness to 100 MHz - enabling wideband video signal integrity and fast pulse fidelity (30 ns settling to 0.05%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 370 MHz (−3 dB); enables full-spectrum baseband video amplification up to 100 MHz with ≤0.1 dB ripple. |
| Slew Rate | 600 V/μs; supports clean 4 V step response with 2.5 ns rise/fall time and minimal distortion. |
| Supply Current | 1.2 mA per amplifier (typical at ±5 V); allows integration into power-constrained portable designs. |
| Differential Gain / Phase | 0.03% / 0.11° at 4.43 MHz (NTSC); meets broadcast-grade video fidelity requirements without post-correction. |
| Output Current | ±110 mA linear sourcing/sinking; drives 150 Ω video loads or 100 Ω ADC inputs directly. |
| Input Voltage Range | ±4.0 V common-mode (CMVR); supports split-supply operation with headroom for AC-coupled signals. |
| Thermal Resistance | 230 °C/W (SOT-23); requires careful PCB copper area management for sustained 110 mA output. |
Pinout & Package
LMH6723MA/NOPB is available in SOIC-8 (D08A) package (4.90 mm × 3.91 mm), pin-compatible with industry-standard 8-pin SOIC footprints. The device has no internal ground reference, supporting flexible single- or dual-supply configurations.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUT | Amplifier output node; requires 51 Ω series resistor when driving capacitive loads >10 pF. |
| 2 | −IN | Inverting input; presents ~500 Ω dynamic impedance; sensitive to parasitic capacitance - layout critical. |
| 3 | +IN | Non-inverting input; high-impedance (100 kΩ), low-capacitance (1.5 pF) node for signal source connection. |
| 4 | V− | Negative supply rail; must be decoupled with 100 nF ceramic capacitor near pin. |
| 5 | V+ | Positive supply rail; accepts 4.5–12 V single or ±2.5–±6 V dual supply; same decoupling requirement as V−. |
| 6–8 | N/C | No-connect pins; electrically isolated; must remain unconnected and unbonded on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant −3 dB bandwidth across gains +1 to +5 V/V via fixed RF (e.g., 1200 Ω), eliminating gain-bandwidth trade-off. |
| Video-optimized linearity | 0.03% differential gain and 0.11° phase error at 4.43 MHz ensure broadcast-compliant NTSC/PAL signal reproduction. |
| Low-power high-speed operation | Delivers 370 MHz bandwidth and 600 V/μs slew rate at only 1.2 mA supply current - ideal for portable DVD and camera modules. |
| Wide supply range | Operates from 4.5 V to 12 V single supply or ±2.5 V to ±6 V dual supply - simplifies system-level power architecture. |
| Unity-gain stable | Requires no external compensation components; supports direct use in gain-of-1 buffers for ADC front-ends or cable drivers. |
Applications
| Line Driver | A/D Driver |
|---|---|
|
Use Scenario: Driving 75 Ω coaxial video cables in portable media players or security camera modules. IC Role / Device Role / Timing Role: High-output-current current-feedback amplifier configured as unity-gain buffer with 51 Ω series termination. Use Value: Maintains 0.1 dB gain flatness to 100 MHz and preserves NTSC differential phase accuracy (<0.11°) over 30 m cable runs. |
Use Scenario: Conditioning analog video or sensor signals prior to sampling by 10-bit+ ADCs in embedded vision systems. IC Role / Device Role / Timing Role: Single-supply (+5 V) driver stage with rail-to-rail output swing and 30 ns settling to 0.05%. Use Value: Delivers 110 mA peak current into 100 Ω ADC input, minimizing code-dependent distortion and aperture jitter. |
| Portable Video | Portable DVD |
|
Use Scenario: RGB/YUV signal amplification in handheld displays or HDMI transmitter front-ends. IC Role / Device Role / Timing Role: Low-quiescent-current (1.2 mA) video amplifier operating from 5 V battery supply with 0.03% DG performance. Use Value: Enables >4-hour battery life in 3.5″ LCD panels while preserving color fidelity and edge sharpness. |
Use Scenario: Composite video output stage in portable DVD players feeding consumer TVs via RCA jacks. IC Role / Device Role / Timing Role: SOIC-8 packaged amplifier delivering 1 VPP NTSC signal into 75 Ω load with <0.1 dB ripple to 5 MHz. Use Value: Eliminates need for external passive filters or gain-setting resistors - reduces BOM count and board space. |
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 unity-gain bandwidth; 400 V/μs slew rate; 1.5 mA supply current. | Better suited for cost-sensitive 1080p video interfaces where 370 MHz excess bandwidth is unnecessary. | Select when 200 MHz bandwidth suffices and lower quiescent current is not required. |
| THS3201DR | Higher 1.8 GHz bandwidth but 12 mA supply current; requires external compensation; SOIC-8 footprint differs. | Targeted at test equipment and high-end imaging - not optimized for battery life or video linearity. | Choose only for >1 GHz small-signal bandwidth needs; avoid for portable video due to power and layout complexity. |
Compared with LMH6723MA/NOPB, LMH6720MA/NOPB trades bandwidth for lower cost and similar video specs, while THS3201DR offers extreme speed at 10× higher supply current and no guaranteed differential gain/phase performance - making LMH6723MA/NOPB the optimal balance of speed, power, and broadcast compliance.
Availability
LMH6723MA/NOPB is available at Aetrix Electronics and suitable for portable video, A/D converter front-ends, and line driver applications requiring stable component supply, long-term industrial availability, and TI-qualified manufacturing traceability.
Supply support for LMH6723MA/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 high-performance signal chain solutions, with over 50 years of op amp innovation and automotive-grade reliability validation.
The LMH6723MA/NOPB belongs to TI's high-speed current-feedback op amp product line, designed specifically for portable video, instrumentation, and data acquisition systems demanding low power, wide bandwidth, and broadcast-grade linearity.
FAQ
What is the recommended feedback resistor value for LMH6723MA/NOPB at gain = +2 V/V?
The LMH6723MA/NOPB datasheet specifies 1200 Ω as the standard feedback resistor (RF) for +2 V/V non-inverting configuration with ±5 V supplies. This value provides optimal bandwidth, gain flatness, and stability. Lowering RF increases bandwidth but risks peaking and oscillation; increasing it rolls off frequency response prematurely. LMH6723MA/NOPB requires this external RF - it cannot operate as a voltage-feedback op amp with direct output-to-inverting-input connection.
Does LMH6723MA/NOPB support single-supply operation?
Yes, LMH6723MA/NOPB operates from a single 4.5 V to 12 V supply. Its input common-mode range extends to within 1 V of each rail, and output swings to within 1.4 V of each rail under 100 Ω load. For true rail-to-rail input/output, external level-shifting or biasing is required. The device has no internal ground reference, allowing flexible DC-coupled or AC-coupled single-supply designs - commonly used in portable DVD and camera modules.
What is the maximum capacitive load LMH6723MA/NOPB can drive without external compensation?
LMH6723MA/NOPB is not characterized for direct capacitive load driving. TI recommends adding a series output resistor (ROUT) between the amplifier output and capacitive load. For example, with 100 pF load and ±5 V supply, a 24 Ω ROUT limits peaking to ≤0.5 dB. The "Suggested ROUT vs. CL" curves in the datasheet provide exact values: 48 Ω for 10 pF, 30 Ω for 47 pF, and 24 Ω for 100 pF - all ensuring stable, well-damped step response.
How does LMH6723MA/NOPB differ from voltage-feedback op amps in layout practice?
LMH6723MA/NOPB's current-feedback architecture makes the inverting input highly sensitive to parasitic capacitance - even 0.5 pF degrades bandwidth and stability. Layout must minimize trace length and stubs at Pin 2 (−IN), avoid vias or connectors nearby, and use ground guard rings. Unlike voltage-feedback op amps, feedback resistor placement must be adjacent to Pin 2, and RF should be a surface-mount 1200 Ω chip resistor with shortest possible leads. Input traces to Pin 3 (+IN) require controlled impedance and shielding.
Is LMH6723MA/NOPB pin-compatible with LMH6724MA/NOPB?
No. LMH6723MA/NOPB is a single-channel amplifier in SOIC-8 with Pins 1–5 assigned as OUTPUT, −IN, +IN, V−, V+, and Pins 6–8 as N/C. LMH6724MA/NOPB is a dual-channel version in the same SOIC-8 package but uses Pins 1, 7 as OUT A/OUT B; Pins 2, 6 as −IN A/−IN B; Pins 3, 5 as +IN A/+IN B; and Pins 4, 8 as V−/V+. Their pinouts are mutually incompatible - PCB redesign is required for substitution.
LMH6723MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
LMH6723MA/NOPB FAQ
1.How can I place an order for LMH6723MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6723MA/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 LMH6723MA/NOPB reliable?
The price and inventory of LMH6723MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6723MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6723MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6723MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6723MA/NOPB?
LMH6723MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6723MA/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 LMH6723MA/NOPB?
For technical support, including LMH6723MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6723MA/NOPB requirements.
6.How does Aetrix verify that LMH6723MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6723MA/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 LMH6723MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6723MA/NOPB?
All LMH6723MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6723MA/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 LMH6723MA/NOPB part is unused and in its original packaging.
Return procedure for LMH6723MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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