Texas Instruments TLV9051IDCKR

Overview

TLV9051IDCKR from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-voltage, high-slew-rate applications. It delivers 15 V/µs slew rate, 5 MHz unity-gain bandwidth, ±0.33 mV input offset voltage, 330 µA quiescent current, and operates from 1.8 V to 6.0 V supply. It is used in photodiode amplification, low-side current sensing, and sensor signal conditioning where precision, speed, and power efficiency are critical.

For engineers reviewing the TLV9051IDCKR datasheet, TLV9051IDCKR pinout, TLV9051IDCKR application, or TLV9051IDCKR equivalent, this page provides verified electrical specifications, SC70-5 package terminal mapping, real-world use cases in HVAC and white goods, and two validated alternative op amps with documented functional and application differences.

Technical Context

The TLV9051IDCKR employs a CMOS input stage enabling ultra-low input bias current (2 pA typical) and rail-to-rail common-mode input range extending 0.1 V beyond both rails. Its internal RFI/EMI filter and phase-reversal immunity support robust operation in noisy industrial environments.

Designed for unity-gain stability with 150 pF capacitive-load drive capability, it features a resistive open-loop output impedance that simplifies compensation across varying load conditions - critical for active filters and fast-settling current sense circuits.

Key Specifications

Pinout & Package

TLV9051IDCKR is packaged in a 5-pin SC70 (DCK) package measuring 2.0 mm × 2.1 mm, optimized for space-constrained PCB layouts while maintaining thermal performance via exposed pad variants (not applicable to DCK).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar operational amplifier applications.

Compared with OPA391IDCKR and MCP6001T-E/OT, TLV9051IDCKR uniquely balances 15 V/µs slew rate, 330 µA IQ, and ±0.33 mV offset in SC70 - making it optimal for high-fidelity, low-power industrial sensing where speed and precision coexist.

Availability

TLV9051IDCKR is available at Aetrix Electronics and suitable for photodiode amplification, low-side current sensing, and HVAC control requiring stable component supply across automotive, industrial, and appliance production programs.

Supply support for TLV9051IDCKR 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 precision amplifiers and industrial-grade signal chain solutions.

The TLV905x family was designed specifically for cost-sensitive, low-voltage applications demanding high slew rate, rail-to-rail operation, and extended temperature resilience - targeting industrial automation, appliance control, and portable instrumentation.

FAQ

What is the maximum capacitive load TLV9051IDCKR can drive while remaining stable?

The TLV9051IDCKR is specified to remain unity-gain stable with up to 150 pF of capacitive load, as confirmed in the datasheet's Phase Margin vs Capacitive Load plot (Figure 6-17). This eliminates the need for series isolation resistors in many ADC driver and cable interface configurations - unlike many general-purpose op amps requiring ≥500 Ω compensation for 100 pF loads. TLV9051IDCKR achieves this via its resistive open-loop output impedance and internal compensation.

Does TLV9051IDCKR support true rail-to-rail input common-mode range?

Yes - TLV9051IDCKR supports a common-mode input voltage range from (V–) – 0.1 V to (V+) + 0.1 V across its full operating temperature range (–40°C to +125°C), as specified in Section 6.3. This allows direct interfacing with sensors whose outputs swing to ground or VCC, such as resistive bridge elements or DACs, without external level-shifting circuitry. TLV9051IDCKR maintains low input offset and CMRR across this extended range.

Is TLV9051IDCKR pin-compatible with other op amps in SC70-5 packages?

TLV9051IDCKR follows the standard SC70-5 pinout (IN+, V–, IN–, OUT, V+), matching industry conventions for single-channel op amps like the OPA391IDCKR and TLV6001IDCKR. However, functional compatibility requires verification of electrical specs - e.g., TLV9051IDCKR's 15 V/µs slew rate exceeds TLV6001IDCKR's 0.3 V/µs, so direct substitution may cause instability or distortion in high-speed circuits unless layout and compensation are re-evaluated.

What is the shutdown functionality of TLV9051IDCKR?

TLV9051IDCKR does not include a shutdown pin - only the TLV9051S variants (e.g., TLV9051SDBVR) offer shutdown capability. TLV9051IDCKR is a standard single-channel op amp without enable/disable control. If low-power sleep mode is required, external power gating or system-level power sequencing must be implemented. The 330 µA quiescent current of TLV9051IDCKR remains active whenever V+ and V– are applied.

How does TLV9051IDCKR perform in overdrive recovery scenarios?

TLV9051IDCKR recovers from output saturation in 0.3 µs (typical overload recovery time), as measured under VS = 5.5 V with VIN × gain exceeding the supply rails. This fast recovery prevents signal distortion in closed-loop current sensing during motor startup surges or fault events. Unlike many CMOS op amps prone to phase reversal, TLV9051IDCKR maintains correct polarity throughout overdrive - a key reliability feature confirmed in Figure 6-18 of the datasheet.