Texas Instruments TLV9164IPWR

Overview

TLV9164IPWR from Texas Instruments is a quad-channel, rail-to-rail input/output operational amplifier optimized for precision industrial signal conditioning. It delivers ±210 µV max input offset voltage, 11 MHz gain-bandwidth product, 33 V/µs slew rate, 6.8 nV/√Hz input voltage noise at 1 kHz, and operates from 2.7 V to 16 V supply. It is used in high-side/low-side current sensing and multiplexed data-acquisition systems requiring low drift and robust EMIRR performance.

For engineers reviewing the TLV9164IPWR datasheet, TLV9164IPWR pinout, TLV9164IPWR application, or TLV9164IPWR equivalent, key selection criteria include its quad-channel SOIC-14/TSSOP-14 footprint, ±0.25 µV/°C offset drift, 110 dB CMRR, 2.4 mA per amplifier quiescent current, and rail-to-rail output swing within 6 mV of rails at no load - critical for low-voltage, high-accuracy analog front-ends.

Technical Context

The TLV9164IPWR employs a complementary input stage enabling true rail-to-rail common-mode input range (V– to V+), supporting MUX-friendly operation and open-loop comparator use. Its architecture achieves unity-gain stability with 64° phase margin into 20 pF loads while maintaining 11 MHz bandwidth and low broadband noise (4.2 nV/√Hz at 10 kHz).

DC precision is enforced via laser-trimmed input offset and ultra-low bias current (±10 pA), enabling high-impedance sensor interfacing. The device features robust electromagnetic interference rejection (EMIRR > 100 dB above 10 MHz) and operates across –40°C to +125°C, meeting industrial temperature requirements without derating.

Key Specifications

Pinout & Package

TLV9164IPWR is supplied in a 14-pin TSSOP package (PW) measuring 5.00 mm × 6.40 mm, with exposed thermal pad connected to V– for enhanced thermal dissipation in high-density layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op amp applications.

Compared with OPA4197IPWR and LM324BQPWRQ1, TLV9164IPWR provides the optimal balance of speed (11 MHz), precision (±210 µV), and ease of use (unity-gain stable, rail-to-rail I/O) for industrial signal chains - delivering faster settling than LM324BQPWRQ1 and greater stability margin than OPA4197IPWR without external components.

Availability

TLV9164IPWR is available at Aetrix Electronics and suitable for professional audio interfaces, programmable logic controller (PLC) analog input modules, and factory automation current-sensing subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV9164IPWR 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 op amps and industrial-grade signal chain solutions.

The TLV916x product line was engineered for high-accuracy, wide-supply industrial applications - emphasizing low drift, rail-to-rail operation, and robust EMI immunity in harsh electromagnetic environments.

FAQ

What is the maximum operating temperature range for TLV9164IPWR?

The TLV9164IPWR is specified from –40°C to +125°C ambient temperature, validated across its full electrical performance envelope including offset voltage, CMRR, and gain-bandwidth. This range meets industrial and extended-temperature requirements without derating, and thermal metrics (RθJA = 118.8°C/W for TSSOP) support reliable operation at full load in enclosed enclosures.

Does TLV9164IPWR support rail-to-rail output swing under load?

Yes, TLV9164IPWR delivers rail-to-rail output swing: within 6 mV of V+ and V– at no load, and within 60 mV at 10 kΩ load (25 mA typical). At 2 kΩ load, swing degrades to 85–300 mV headroom depending on supply voltage - design must verify output compliance for target load and supply conditions using Figure 5-16/5-17 in the datasheet.

Can TLV9164IPWR be used as a comparator?

Yes, TLV9164IPWR is explicitly designed for MUX-friendly/comparator use: its inputs operate up to the supply rails, and it remains stable in open-loop configuration. However, propagation delay is not characterized; for timing-critical comparator applications, dedicated comparators (e.g., TLV3201) are recommended. TLV9164IPWR is best suited for non-timing-critical overvoltage/undervoltage detection.

What is the input bias current specification for TLV9164IPWR?

The TLV9164IPWR has an input bias current of ±10 pA (typical) across –40°C to +125°C, enabled by its CMOS input stage. This allows direct interfacing with high-impedance sources such as piezoelectric sensors and pH electrodes without significant voltage error - e.g., <1 mV error across a 100 MΩ source impedance at room temperature.

Is TLV9164IPWR unity-gain stable?

Yes, TLV9164IPWR is unity-gain stable with ≥64° phase margin into 20 pF capacitive loads (per Figure 5-33), and exhibits clean step response (Figure 5-34–5-37) without external compensation. This eliminates the need for feedback capacitors in standard gain-of-one buffers, simplifying layout and improving reliability in space-constrained industrial PCBs.