Texas Instruments TLV2365DGKR

Overview

TLV2365DGKR from Texas Instruments is a dual-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, high-speed signal conditioning. It delivers 50MHz gain bandwidth, 27V/µs slew rate, 4.5nV/√Hz input voltage noise, 115dB typical CMRR, and operates from 2.2V to 5.5V supply - enabling precision ADC driving in low-side current sensing and audio front-ends.

For engineers reviewing the TLV2365DGKR datasheet, TLV2365DGKR pinout, TLV2365DGKR application, or TLV2365DGKR equivalent, key selection considerations include zero-crossover distortion topology, 0.2µs settling to 0.01%, ±20pA max input bias current, 10mV rail-to-rail output swing, and −40°C to +125°C operating range.

Technical Context

The TLV2365DGKR implements a zero-crossover input stage that eliminates offset transition regions across the full common-mode range (extending 100mV beyond rails), ensuring linear performance when driving SAR ADCs. Its CMOS architecture enables ultra-low input bias current and high input impedance while maintaining 50MHz bandwidth and 5.8mA typical quiescent current per channel.

This dual op-amp supports single-supply (2.2–5.5V), symmetrical bipolar (±2.5V), or asymmetrical split supplies (e.g., +4V/−1V) with no power-down mode. It features 108dBc channel-to-channel crosstalk at 100kHz and is fully specified over industrial and automotive temperature ranges.

Key Specifications

Pinout & Package

DGK package: 8-pin VSSOP (2.3mm × 2.0mm, 0.5mm pitch), thermally enhanced for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, high-speed, rail-to-rail op-amp applications.

Compared with OPA2365DR and TLV2762IDGKR, TLV2365DGKR uniquely balances 50MHz bandwidth, 115dB CMRR, and 4.5nV/√Hz noise - making it the only option among the three qualified for high-fidelity, wideband ADC driver and anti-aliasing filter roles across −40°C to +125°C.

Availability

TLV2365DGKR is available at Aetrix Electronics and suitable for low-side current sensing, audio front-end amplification, data acquisition system input stages, and active anti-aliasing filters requiring stable component supply across automotive, industrial, and test equipment programs.

Supply support for TLV2365DGKR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLVx365 product line was designed specifically for high-speed, low-voltage signal conditioning in cost-sensitive applications - emphasizing zero-crossover distortion, rail-to-rail operation, and robust performance from 2.2V to 5.5V supplies.

FAQ

What is the maximum capacitive load the TLV2365DGKR can drive without instability?

The TLV2365DGKR can drive up to 100pF capacitive load in unity-gain configuration without external compensation. For loads exceeding 100pF, a series isolation resistor (RISO) of 20Ω–100Ω is recommended at the output to maintain ≥56° phase margin and prevent overshoot. This is validated in Figure 6-16 and Section 7.3.3 of the official datasheet. The TLV2365DGKR's ability to stabilize moderate capacitive loads simplifies layout in ADC reference buffering and filter applications.

Does the TLV2365DGKR support true 0V output in single-supply operation?

Yes - the TLV2365DGKR achieves output voltages within 10mV of V− (including ground) under light loads. To reach true 0V or slightly below, a pulldown resistor (e.g., 10kΩ to −5V) can be added to sink ~500µA, as shown in Figure 8-3. This technique is documented for TLV2365DGKR in Section 8.1.2 and enables precise zero-referenced signal generation in 3.3V data acquisition systems.

What is the guaranteed input bias current specification for TLV2365DGKR over temperature?

The TLV2365DGKR guarantees input bias current ≤ ±20pA over the full −40°C to +125°C operating range, as specified in Section 6.5 Electrical Characteristics. This ultra-low bias current prevents loading errors on high-impedance sources like piezoelectric sensors or pH electrodes, making TLV2365DGKR suitable for precision measurement front-ends where leakage would otherwise degrade accuracy.

Can TLV2365DGKR operate with asymmetric dual supplies, such as +4V and −1V?

Yes - the TLV2365DGKR supports asymmetric dual supplies including +4V and −1V, as confirmed in Section 7.4 Device Functional Modes and Section 8.3 Power Supply Recommendations. Its rail-to-rail input extends 100mV beyond both rails, and output swings within 10mV of either supply, enabling flexible biasing in mixed-signal systems without additional level-shifting circuitry.

Is TLV2365DGKR pin-compatible with other dual op-amps in the DGK (VSSOP-8) package?

No - TLV2365DGKR has a specific pinout defined in Table 5-2 (VOUTA, –INA, +INA, V−, +INB, –INB, VOUTB, V+), which differs from generic dual op-amp arrangements (e.g., TI's OPA2365DR uses V−, +INB, –INB, VOUTB, V+, +INA, –INA, VOUTA). Substituting TLV2365DGKR requires PCB layout revision; it is not a drop-in replacement for other DGK-packaged dual op-amps.