Texas Instruments LMH6724MAX

Overview

LMH6724MAX from Texas Instruments is a dual-channel, current-feedback operational amplifier optimized for high-speed video and analog signal conditioning. It delivers 370 MHz unity-gain bandwidth (−3 dB), 260 MHz small-signal bandwidth at AV = +2 V/V, and 600 V/μs slew rate while drawing only 1.2 mA per channel from ±5 V supplies. Its 0.03% differential gain and 0.11° differential phase meet NTSC/PAL video line driver requirements.

For engineers reviewing the LMH6724MAX datasheet, LMH6724MAX pinout, LMH6724MAX application, or LMH6724MAX equivalent, this page provides verified technical context, SOIC-8 package mapping, real-world video and A/D driver use cases, and two validated alternative parts with documented functional and application-level differences.

Technical Context

The LMH6724MAX implements a current-feedback architecture with a high-impedance non-inverting input and low-impedance inverting input (~500 Ω), enabling gain-independent bandwidth control via feedback resistor selection. Its VIP10 complementary bipolar process supports rail-to-rail output swing and stable operation from ±2.5 V to ±6 V supplies.

It features unity-gain stability, 110 mA linear output current capability, and maintains 0.1 dB gain flatness to 100 MHz-critical for composite video fidelity. Input common-mode range extends to ±4.0 V (±5 V supply), and output voltage swing reaches ±3.85 V into high-impedance loads.

Key Specifications

Pinout & Package

LMH6724MAX is housed in an 8-pin SOIC package (D08A), body size 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. Thermal resistance is 166 °C/W (junction-to-ambient).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.

Compared with LMH6722MA and THS3202D, the LMH6724MAX uniquely balances dual-channel integration, 370-MHz bandwidth, sub-2-mA quiescent current, and video-grade linearity-making it optimal for space-constrained, battery-operated video signal chains where power and matching matter.

Availability

LMH6724MAX is available at Aetrix Electronics and suitable for portable video, A/D driver, and line driver applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for LMH6724MAX 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 amps and precision signal chain solutions.

The LMH6724MAX belongs to TI's LMH67xx family of current-feedback amplifiers, designed specifically for portable, battery-powered video and high-speed data acquisition systems demanding low power, high fidelity, and dual-channel integration.

FAQ

What is the recommended feedback resistor value for LMH6724MAX at AV = +2 V/V?

The LMH6724MAX datasheet specifies 1200 Ω as the recommended feedback resistor (RF) for AV = +2 V/V with ±5 V supplies. This value delivers near-maximal bandwidth (260 MHz), minimal peaking (<0.1 dB), and robust stability. Lower RF values (e.g., 800 Ω) increase bandwidth but risk overshoot; higher values reduce bandwidth and degrade gain flatness. LMH6724MAX must never be used with RF <200 Ω in unity-gain buffer mode.

Does LMH6724MAX support single-supply operation?

Yes, LMH6724MAX supports true single-supply operation from 4.5 V to 12 V total supply voltage. Its input common-mode range extends to within 1 V of either rail, and output swings to within 1.15 V of each rail (e.g., ±3.85 V on ±5 V). For single-ended 5 V systems, bias the non-inverting inputs at V+/2 using a resistive divider and AC-couple inputs/outputs as needed.

What is the maximum capacitive load LMH6724MAX can drive without instability?

LMH6724MAX can safely drive up to 100 pF with a series output resistor (ROUT) of 48 Ω (per Figure 17/18 and Table "Suggested ROUT vs. CL"). Without ROUT, capacitive loads >10 pF may cause peaking or oscillation due to phase shift in the feedback loop. For 150 Ω video loads with typical 50–100 pF cable capacitance, a 24–30 Ω ROUT is recommended to maintain ≤0.5 dB peaking and preserve 100 MHz flatness.

How does LMH6724MAX compare to LMH6723 in pin compatibility and performance?

LMH6724MAX (SOIC-8 dual) and LMH6723 (SOIC-8 single or SOT-23-5 single) share identical electrical specs per channel-including 370 MHz UGBW, 600 V/μs slew rate, and 0.03%/0.11° video linearity-but differ in channel count and pinout. LMH6724MAX has dedicated pins for both channels (OUT A/IN± A and OUT B/IN± B); LMH6723 uses only half the SOIC-8 pins. They are not pin-compatible replacements.

Is LMH6724MAX suitable for driving ADC inputs in high-resolution data acquisition systems?

Yes, LMH6724MAX is well-suited for driving 10–14-bit, 10–50 MSPS ADCs. Its 110 mA output current handles 100 Ω input impedances, 600 V/μs slew rate ensures <30 ns settling to 0.05%, and 4.3 nV/√Hz input voltage noise adds minimal degradation to system SNR. Use a 24–48 Ω series ROUT and 100 pF shunt capacitor at the ADC input to suppress charge kickback and improve dynamic performance.