Analog Devices Inc. LT1206CS8#TRPBF

Overview

LT1206CS8#TRPBF from Analog Devices (formerly Linear Technology) is a current-feedback operational amplifier optimized for high-current video and cable driving applications. It delivers 250mA minimum output drive, 60MHz small-signal bandwidth at AV = 2 with 100Ω load, 900V/µs slew rate, 0.02% differential gain, and 0.17° differential phase - enabling robust RGB, composite video, and multi-cable distribution in broadcast and test equipment.

For engineers reviewing the LT1206CS8#TRPBF datasheet, LT1206CS8#TRPBF pinout, LT1206CS8#TRPBF application, or LT1206CS8#TRPBF equivalent, key selection criteria include capacitive-load stability up to 10,000pF, shutdown mode (<200µA supply current), adjustable quiescent current via external resistor, ±5V to ±15V dual-supply operation, and SO-8 package thermal performance (θJA = 60°C/W).

Technical Context

The LT1206CS8#TRPBF uses a proprietary complementary bipolar process to achieve high-speed current-feedback architecture, where bandwidth and slew rate depend on feedback resistor value and supply voltage-not fixed gain-bandwidth product. Its transresistance stage enables stable operation with large capacitive loads when COMP pin is configured with 0.01µF.

Shutdown control is implemented via a supply-referenced pin: grounding it enables normal operation; pulling it to V+ places the device in high-impedance, low-current state. Quiescent current scales linearly with shutdown pin current-enabling precise bias tuning from 5mA to 30mA using external resistors.

Key Specifications

Pinout & Package

LT1206CS8#TRPBF is housed in an 8-lead plastic SOIC (S8) package with standard JEDEC MS-012AC footprint, 1.27mm pitch, and exposed pad not connected internally. Thermal resistance θJA = 60°C/W under standard 2500 mm² copper conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6702MA/NOPB and AD817ARZ, the LT1206CS8#TRPBF uniquely combines 250mA drive, integrated shutdown, and CL = 10,000pF stability - making it the only choice for broadcast-grade multi-cable video buffering where power gating and capacitive interface robustness are mandatory.

Availability

LT1206CS8#TRPBF is available at Aetrix Electronics and suitable for RGB video distribution, NTSC composite buffering, cable drivers for test equipment, and low-jitter ADC front-end drivers requiring stable component supply across industrial temperature range (–40°C to +85°C).

Supply support for LT1206CS8#TRPBF 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

Analog Devices acquired Linear Technology in 2017 and maintains its high-performance analog portfolio, including precision amplifiers, data converters, and power management ICs for demanding signal chain applications.

The LT1206CS8#TRPBF belongs to Linear's legacy current-feedback op-amp family, engineered specifically for high-fidelity video signal conditioning, cable driving, and wideband analog buffering where speed, linearity, and capacitive-load resilience are critical.

FAQ

What is the maximum capacitive load the LT1206CS8#TRPBF can drive stably?

The LT1206CS8#TRPBF is specified stable with up to 10,000pF capacitive load when the COMP pin is connected to the OUT pin via a 0.01µF capacitor. This configuration eliminates peaking and preserves flat frequency response - essential for LCD panel interfaces and long coaxial traces. Without COMP connection, stability degrades significantly above ~1000pF.

Does the LT1206CS8#TRPBF require external compensation for resistive loads?

No - the LT1206CS8#TRPBF should have the COMP pin left open (unconnected) when driving purely resistive loads such as 50Ω or 75Ω terminations. Connecting COMP to OUT in this case reduces bandwidth (e.g., from 55MHz to 35MHz at RL = 30Ω) without benefit. The optional compensation network is intended solely for capacitive-load stabilization.

How do I configure shutdown mode on the LT1206CS8#TRPBF?

To place the LT1206CS8#TRPBF in shutdown mode, drive the S/D pin to the positive supply rail (V+). This reduces supply current to <200µA and places the output in high-impedance state (~40pF). For normal operation, connect S/D directly to ground or V–. An open-drain logic buffer (e.g., 74C904) with 24k pull-up to V+ provides clean, sub-1µs switching.

Can the LT1206CS8#TRPBF operate on single-supply configurations?

Yes - the LT1206CS8#TRPBF supports single-supply operation (e.g., +10V and GND) provided the input common-mode range (±12V at ±15V supplies) and output swing (±11.5V at ±15V) are respected relative to the chosen rails. Input biasing and level-shifting networks are required to keep VIN within valid CMVR and avoid clipping. Refer to Figure 1206 TA06 in the datasheet for single-supply application guidance.

What is the thermal performance of the LT1206CS8#TRPBF in SO-8 package?

The LT1206CS8#TRPBF in SO-8 (S8) package has a junction-to-ambient thermal resistance (θJA) of 60°C/W with 2500 mm² copper on both board sides. With 225 mm² topside copper, θJA rises to 65°C/W. At 30mA supply current and ±15V supplies (PD ≈ 0.9W), junction temperature remains below 150°C up to 70°C ambient - confirming suitability for enclosed industrial enclosures without forced air.