Texas Instruments TLV9161IDCKR

Overview

TLV9161IDCKR from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for precision signal conditioning in industrial and test equipment. It delivers ±210 µV 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.

For engineers reviewing the TLV9161IDCKR datasheet, TLV9161IDCKR pinout, TLV9161IDCKR application, or TLV9161IDCKR equivalent, key selection criteria include its low offset drift (±0.25 µV/°C), robust EMIRR performance, MUX-friendly inputs enabling comparator-mode operation, and SC70-5 package compatibility with space-constrained PCB layouts.

Technical Context

The TLV9161IDCKR employs a CMOS input stage supporting rail-to-rail common-mode input voltage (V– to V+), enabling direct interfacing with sensors and ADCs across full supply range. Its internal architecture supports open-loop comparator use without latch-up due to MUX-friendly input structure and differential input voltage tolerance up to ±VS.

It features unity-gain stable compensation with 64° phase margin into 20 pF load, delivering 0.70 µs settling time to 0.1% for 10 V step, and maintains 110 dB CMRR over –40°C to 125°C. Output drives ±73 mA short-circuit current while sustaining rail-to-rail swing into 2 kΩ loads.

Key Specifications

Pinout & Package

TLV9161IDCKR is housed in a 5-pin SC70 (DCK) package measuring 2.00 mm × 2.10 mm, optimized for high-density PCB layouts and thermal performance with R_θJA = 166.9°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA391DBVR and AD8605ARTZ-REEL7, TLV9161IDCKR uniquely combines 16 V operation, 11 MHz bandwidth, rail-to-rail input to V+, and MUX-friendly architecture-making it the only option among the three qualified for high-voltage industrial current sensing and multiplexed precision DAQ.

Availability

TLV9161IDCKR is available at Aetrix Electronics and suitable for professional audio systems, industrial data acquisition, and factory automation requiring stable component supply, extended temperature support (–40°C to 125°C), and long-term production continuity.

Supply support for TLV9161IDCKR 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 IC design.

The TLV916x family was engineered for high-accuracy signal conditioning in harsh industrial environments-delivering low-drift, low-noise, and robust EMI immunity in compact packages for current sensing, sensor interfaces, and automated test equipment.

FAQ

What is the maximum supply voltage rating for TLV9161IDCKR?

The TLV9161IDCKR has an absolute maximum supply voltage (V+ to V–) of 20 V, with recommended operating range from 2.7 V to 16 V. Operation above 16 V is not guaranteed per specifications and may impact long-term reliability or parametric performance. The device supports dual-supply configurations (±1.35 V to ±8 V) and single-supply use, making it suitable for both legacy industrial rails and modern low-voltage systems.

Does TLV9161IDCKR support true rail-to-rail input operation across its full temperature range?

Yes, TLV9161IDCKR supports rail-to-rail input common-mode voltage (V– to V+) across its full specified temperature range of –40°C to +125°C. This is confirmed by datasheet Section 5.7, which specifies V_CM = (V–) to (V+) under all test conditions, including worst-case drift and process corners. The CMRR remains ≥85 dB across this range, ensuring consistent precision even at temperature extremes.

Can TLV9161IDCKR be used as a comparator without external components?

Yes, TLV9161IDCKR can operate open-loop as a comparator due to its MUX-friendly inputs-specifically designed to tolerate differential input voltages up to ±V_S and common-mode voltages beyond rails (with current limiting). However, propagation delay and output saturation behavior differ from dedicated comparators; it is intended for moderate-speed, low-precision threshold detection where op amp characteristics (e.g., low input bias current, rail-to-rail output) provide system-level advantages.

What is the thermal resistance (R_θJA) of TLV9161IDCKR in its SC70-5 package?

The TLV9161IDCKR in the DCK (SC70-5) package has a junction-to-ambient thermal resistance (R_θJA) of 166.9°C/W, as specified in Section 5.4 of the datasheet. This value assumes standard JEDEC high-K test board conditions. Actual board-level performance depends on copper area, layer count, and airflow; adding thermal vias under the exposed pad (if present) is not applicable to SC70, but maximizing top-side copper improves dissipation.

Is TLV9161IDCKR qualified for automotive applications?

No, TLV9161IDCKR is not AEC-Q200 qualified and is specified only for industrial temperature range (–40°C to +125°C), not automotive grade (–40°C to +150°C). While its operating range overlaps part of the automotive requirement, TI does not certify or characterize TLV9161IDCKR for automotive use cases, including PPAP, stress testing, or failure-in-time (FIT) reporting. For automotive designs, consider TI's TLV9061 or OPAxx-Q1 series instead.