Texas Instruments TLV314IDCKT

Overview

TLV314IDCKT from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-power, precision signal conditioning in battery-powered systems. It delivers 3 MHz gain bandwidth, 1.5 V/µs slew rate, and 250 µA maximum quiescent current per channel while operating from 1.8 V to 5.5 V - enabling high-fidelity sensor interfacing in portable blood glucose meters and handheld test equipment.

For engineers reviewing the TLV314IDCKT datasheet, TLV314IDCKT pinout, TLV314IDCKT application, or TLV314IDCKT equivalent, key selection criteria include its 1 pA typical input bias current for high-impedance source compatibility, internal EMI filter (80 MHz cutoff), and guaranteed rail-to-rail operation across –40°C to +125°C for industrial sensing and white goods control.

Technical Context

The TLV314IDCKT employs a complementary differential input stage (N- and P-channel pairs) enabling rail-to-rail common-mode input range extending 200 mV beyond both supply rails. Its class AB output stage drives ≥10 kΩ loads with ≤5 mV output swing to rails at 1.8 V–5.5 V supplies.

It integrates an on-chip low-pass EMI filter (–3 dB at ~80 MHz) providing robust immunity against RF interference in noisy environments, and achieves unity-gain stability with capacitive loads up to 1 nF - critical for ADC driver and active filter applications requiring minimal external compensation.

Key Specifications

Pinout & Package

TLV314IDCKT is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained PCB layouts in portable instrumentation and wearable health monitors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA314AIDBVR and MCP6001UT-E/OT, TLV314IDCKT uniquely combines sub-1-pA input bias, integrated EMI filtering, and full –40°C to +125°C qualification - making it the only choice for high-impedance, RF-noisy, and thermally demanding portable diagnostics.

Availability

TLV314IDCKT is available at Aetrix Electronics and suitable for portable medical devices, handheld instrumentation, remote sensing nodes, and industrial I/O modules requiring stable component supply across long production lifecycles.

Supply support for TLV314IDCKT 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 low-power signal chain solutions.

The TLV314IDCKT belongs to TI's TLVx314 low-power RRIO op-amp family, designed specifically for battery-operated medical, test, and industrial sensing applications demanding high accuracy, EMI resilience, and extended temperature operation.

FAQ

What is the maximum capacitive load TLV314IDCKT can drive stably in unity-gain configuration?

The TLV314IDCKT remains unity-gain stable with up to 1 nF of pure capacitive load, as verified in TI's SBOS754A datasheet Figure 8. For larger loads, adding a 10–20 Ω series resistor at the output (per Figure 14) restores stability but introduces gain error. TLV314IDCKT's internal compensation eliminates need for external compensation networks in most sensor buffer applications.

Does TLV314IDCKT support true rail-to-rail input with signals beyond the supply rails?

Yes - TLV314IDCKT's input common-mode range extends 200 mV beyond both V+ and V− rails, enabling direct interface with signals at ground or VCC in single-supply systems. This is achieved via complementary N- and P-channel input stages, as detailed in Section 8.3.2 of the TLV314IDCKT datasheet.

How does the internal EMI filter in TLV314IDCKT improve system-level robustness?

The integrated 80-MHz low-pass EMI filter attenuates RF energy before it reaches the input differential pair, preventing rectification-induced DC offset shifts. TLV314IDCKT demonstrates ≥65 dB EMIRR at 900 MHz (Figure 13), making it significantly more immune than unfiltered op-amps like MCP6001 in cellular-adjacent or industrial RF environments.

What is the guaranteed quiescent current specification for TLV314IDCKT over temperature?

TLV314IDCKT guarantees ≤250 µA per channel across the full –40°C to +125°C operating range at 5 V supply (Section 7.7, Electrical Characteristics). At room temperature and 1.8 V, typical IQ drops to 150 µA - enabling multi-year operation from CR2032 batteries in always-on sensing nodes using TLV314IDCKT.

Can TLV314IDCKT replace older-generation op-amps like LMV321 in existing SC70-5 designs?

TLV314IDCKT is not a direct drop-in replacement for LMV321 due to differences in input stage architecture and ESD structure, though both use SC70-5. TLV314IDCKT offers superior 1-pA bias current (vs. LMV321's 100-pA), integrated EMI filter, and extended temperature range - but requires validation of phase margin and offset behavior in the target circuit before migration.