Texas Instruments TLV170IDR

Overview

TLV170IDR from Texas Instruments is a single-channel, 36-V, EMI-hardened operational amplifier optimized for microvolt-level signal amplification in cost-sensitive industrial systems. It delivers 1.2 MHz gain bandwidth, 22 nV/√Hz input voltage noise, rail-to-rail output swing, ±10 pA typical input bias current, and operates from 2.7 V to 36 V supply - enabling use in server power supplies and transducer amplifier stages.

For engineers reviewing the TLV170IDR datasheet, TLV170IDR pinout, TLV170IDR application, or TLV170IDR equivalent, key selection considerations include its EMI-hardened inputs, –40°C to +125°C operation, 125 µA quiescent current per amplifier, unity-gain stability with 200-pF capacitive load, and input range extending 100 mV below V– and within 2 V of V+.

Technical Context

The TLV170IDR uses a P-channel input stage enabling rail-to-rail common-mode input (with reduced performance at full rail) and phase-reversal protection - preventing output inversion when inputs exceed linear range. Its architecture supports stable operation across 2.7 V to 36 V supplies without parameter re-characterization.

It integrates RFI-filtered inputs for EMI immunity, achieves 110 dB CMRR and 105 dB PSRR (typ), and maintains 0.0002% THD+N at 1 kHz - critical for precision DC-coupled amplification in AC-DC converters and battery-powered instrumentation.

Key Specifications

Pinout & Package

TLV170IDR is packaged in an 8-pin SOIC (D package) with nominal body size 4.90 mm × 3.91 mm and standard JEDEC MS-012 footprint. Thermal resistance R_θJA = 149.5°C/W enables operation up to +125°C ambient without forced airflow in compact PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA192IDR and LM358DR, TLV170IDR uniquely balances EMI immunity, 36-V operation, 125-µA IQ, and 22-nV/√Hz noise - making it optimal for cost-sensitive, noise-prone industrial power and sensing nodes where precision and ruggedness coexist.

Availability

TLV170IDR is available at Aetrix Electronics and suitable for server power supplies, transducer amplifier circuits, and AC-DC converter feedback loops requiring stable component supply across extended temperature and voltage ranges.

Supply support for TLV170IDR 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 op amp innovation and automotive/industrial qualification expertise.

The TLVx170 product line was designed specifically for cost-sensitive industrial systems demanding EMI resilience, wide supply range, and low-power precision - targeting applications like power module monitoring and battery-powered test equipment.

FAQ

What is the maximum capacitive load the TLV170IDR can drive without oscillation?

The TLV170IDR is unity-gain stable with up to 200 pF of capacitive load, as verified in TI's SBOS782A datasheet Figure 14–15. For loads exceeding 200 pF - such as long cables or ADC input capacitance - a 50-Ω series resistor at the output isolates the capacitance and preserves phase margin. This requirement applies regardless of gain configuration and is critical in line driver implementations using TLV170IDR.

Does the TLV170IDR support true rail-to-rail input operation?

The TLV170IDR supports input voltages from (V−) − 0.1 V to (V+) − 2 V for full-spec operation. Full rail-to-rail input (i.e., down to V− and up to V+) is possible but results in degraded parameters including increased offset voltage and reduced CMRR. The datasheet confirms this behavior in Section 6.7 and Figure 2, making TLV170IDR appropriate for most single-supply sensor interfaces without external biasing.

What is the ESD rating of the TLV170IDR, and how does it impact board handling?

The TLV170IDR has ±4000-V HBM and ±750-V CDM ESD ratings per JEDEC JS-001 and JESD22-C101. These ratings meet standard industrial handling requirements, allowing safe assembly in Class 1B ESD environments without special precautions beyond standard grounded workstations. However, input pins remain susceptible to overstress above ±10 mA - so external current limiting is advised in high-energy transient scenarios.

Can the TLV170IDR operate from a single 3.3-V supply?

Yes, the TLV170IDR is fully specified from 2.7 V to 36 V, including single-supply operation at 3.3 V. At this voltage, it maintains 1.2-MHz GBW, rail-to-rail output swing (within ~350 mV of rails), and 125-µA quiescent current. Its input common-mode range extends to (V−) − 0.1 V, enabling direct interfacing with 0-V-referenced sensors - a capability not found in many legacy 3.3-V op amps.

How does the phase-reversal protection in TLV170IDR improve reliability in noninverting amplifier configurations?

TLV170IDR incorporates internal circuitry that prevents output phase reversal when input signals exceed the linear common-mode range - a failure mode common in noninverting amplifiers during power-up, overvoltage transients, or sensor fault conditions. Instead of inverting, the output clamps predictably to the nearest rail. This behavior, validated in Figure 16 of SBOS782A, avoids latch-up or downstream logic errors in safety-critical tracking amplifiers using TLV170IDR.