Texas Instruments SN10502DGNRG4

Overview

SN10502DGNRG4 from Texas Instruments is a dual-channel, rail-to-rail output, high-speed voltage-feedback operational amplifier optimized for video line driving and low-distortion signal conditioning. It delivers 100 MHz small-signal bandwidth (–3 dB, G = 2), 900 V/µs slew rate, 0.007% differential gain, 0.007° differential phase, and ±4.5 V output swing into 150 Ω with ±5 V supplies - enabling high-fidelity composite video distribution in DVD players and imaging front-ends.

For engineers reviewing the SN10502DGNRG4 datasheet, SN10502DGNRG4 pinout, SN10502DGNRG4 application, or SN10502DGNRG4 equivalent, key selection criteria include its dual-channel MSOP-8 PowerPAD™ package, guaranteed 50 MHz 0.1 dB flat bandwidth for NTSC/PAL compliance, crosstalk < –90 dB at 5 MHz, and operation from single 3–15 V or dual ±1.35–±8 V supplies - critical for space-constrained, multi-load video routing designs.

Technical Context

The SN10502DGNRG4 implements a unity-gain-stable voltage-feedback architecture with fully differential input stage and rail-to-rail output stage using complementary bipolar process. Its 120 MHz gain-bandwidth product supports stable G = 2 noninverting and inverting configurations using 1–2 kΩ feedback resistors, while internal compensation ensures stability driving 150 Ω loads with 75 Ω source termination typical in 75 Ω video systems.

It features matched channel performance: identical AC specs per channel (100 MHz BW, –78 dBc HD2 at 5 MHz), 0.007% differential gain error under NTSC 40 IRE ramp conditions, and –90 dB inter-channel crosstalk at 5 MHz - confirming true dual-channel independence required for stereo video or dual-path analog signal chains.

Key Specifications

Pinout & Package

SN10502DGNRG4 uses an 8-pin MSOP PowerPAD™ package (DGN) with exposed thermal pad on underside requiring PCB thermal plane connection. Pinout is identical to standard MSOP-8 but includes PowerPAD™ for enhanced thermal dissipation (θJC = 4.7°C/W, θJA = 58.4°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with THS3202DR and LMH6702MA, SN10502DGNRG4 uniquely balances 100 MHz bandwidth, 0.007% differential gain, rail-to-rail output, and PowerPAD™ thermal efficiency - making it the optimal choice for cost-sensitive, space-constrained consumer video line drivers where NTSC/PAL compliance is mandatory.

Availability

SN10502DGNRG4 is available at Aetrix Electronics and suitable for video line driver, imaging front-end, DVD/CD-ROM video output, and active filtering applications requiring stable component supply, consistent parametric performance across temperature, and long-term manufacturing continuity.

Supply support for SN10502DGNRG4 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 over 50 years of innovation in high-performance amplifiers and signal chain solutions.

The SN10502DGNRG4 belongs to TI's SN1050x family of rail-to-rail output video amplifiers, designed specifically for low-distortion, high-bandwidth analog video signal conditioning in consumer, medical, and industrial imaging systems.

FAQ

What is the maximum output voltage swing of SN10502DGNRG4 into a 150 Ω load?

The SN10502DGNRG4 delivers ±4.5 V output voltage swing into a 150 Ω load with ±5 V supplies, and 0.5 V to 4.5 V with 5 V single supply. This rail-to-rail capability eliminates external level-shifting components in 75 Ω video distribution circuits. The actual swing is verified per Electrical Characteristics table at TJ = 25°C, RL = 150 Ω, and G = 2. SN10502DGNRG4 maintains this performance across –40°C to 85°C ambient temperature.

Does SN10502DGNRG4 support single-supply operation for video applications?

Yes, SN10502DGNRG4 operates from a single 3–15 V supply and is commonly used in 5 V single-supply video systems. Its input common-mode range extends from VS− + 1.1 V to VS+ − 1.1 V, requiring proper DC biasing of the noninverting inputs (e.g., to VS/2 via resistive divider). Figure 35 in the datasheet shows validated DC-coupled and AC-coupled single-supply configurations. SN10502DGNRG4 achieves 0.007% differential gain even under these conditions.

What is the purpose of the PowerPAD™ thermal pad on the SN10502DGNRG4 package?

The exposed thermal pad on the bottom of the SN10502DGNRG4's MSOP-8 PowerPAD™ package provides a low-thermal-resistance path (θJC = 4.7°C/W) from die to PCB copper plane. It must be soldered to a thermally conductive ground or supply plane to achieve rated 1.71 W power dissipation at TA ≤25°C. Failure to connect the PowerPAD™ risks exceeding 125°C junction temperature, causing permanent damage or increased distortion. SN10502DGNRG4's thermal performance is validated per TI Technical Brief SLMA002.

How does SN10502DGNRG4 achieve 0.007% differential gain in NTSC video systems?

SN10502DGNRG4 achieves 0.007% differential gain through precision laser-trimmed input stage matching, low-output-impedance rail-to-rail output stage, and optimized internal compensation that maintains flat gain response from DC to 50 MHz. Measured per NTSC 40 IRE ramp test condition with RL = 150 Ω and G = 2, this performance ensures consistent color saturation across varying luminance levels. SN10502DGNRG4's differential phase of 0.007° further confirms minimal chroma timing skew.

Can SN10502DGNRG4 drive multiple 75 Ω video loads simultaneously?

Yes, SN10502DGNRG4 can drive up to three 75 Ω video loads in parallel (equivalent to 25 Ω total load) while maintaining <0.02% differential gain error and –90 dB crosstalk, as verified in Figures 16–17 of the datasheet. Its ±100 mA output current capability and linear high-frequency output impedance enable stable multi-load operation without external current boosters. SN10502DGNRG4's performance remains compliant with NTSC/PAL specifications even under this condition.