Texas Instruments TLV4170ID

Overview

TLV4170ID from Texas Instruments is a quad-channel, 36-V, single-supply, 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 density at 1 kHz, 110 dB common-mode rejection, rail-to-rail output swing, and 125 µA quiescent current per amplifier - enabling high-precision transducer interfacing in server power supplies and battery-powered instrumentation.

For engineers reviewing the TLV4170ID datasheet, TLV4170ID pinout, TLV4170ID application, or TLV4170ID equivalent, this page provides verified technical context, SOIC-14 package mapping, real-world application cards for AC-DC converters and test equipment, and two validated alternative op amps with documented functional and layout implications.

Technical Context

The TLV4170ID implements a P-channel input stage with phase-reversal protection, allowing inputs to operate 100 mV below V− and within 2 V of V+ without output inversion. Its EMI-hardened architecture includes RFI-filtered inputs and a THD+N of 0.0002% at 1 kHz, supporting clean signal conditioning in noisy power-conversion environments.

Specified across –40°C to +125°C and supply voltages from 2.7 V to 36 V (±1.35 V to ±18 V), it maintains unity-gain stability driving up to 200 pF capacitive loads while delivering 0.4 V/µs slew rate and 20 µs settling time to 0.1% for 10-V steps - making it suitable for tracking amplifiers in power modules and line drivers requiring robust dc accuracy and dynamic response.

Key Specifications

Pinout & Package

TLV4170ID is housed in a 14-pin SOIC (D) package with nominal body size 8.65 mm × 3.91 mm, optimized for automated assembly and thermal performance (R_θJA = 93.2°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV4170ID, OPA4197IDR trades lower noise and drift for doubled quiescent current and higher cost, while LM324DR offers lower price but sacrifices EMI resilience, input range, and output swing - making TLV4170ID the optimal balance for modern industrial signal chains demanding robustness, efficiency, and precision.

Availability

TLV4170ID is available at Aetrix Electronics and suitable for AC-DC converters, server power supplies, and battery-powered instruments requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV4170ID 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 high-reliability op amp design for industrial, automotive, and enterprise applications.

The TLVx170 family was engineered specifically for cost-sensitive industrial systems requiring EMI resilience, wide supply range, and microvolt-level precision - targeting power conversion, test equipment, and portable instrumentation markets.

FAQ

What is the maximum capacitive load the TLV4170ID can drive while remaining stable?

The TLV4170ID is unity-gain stable with up to 200 pF capacitive load at the output, as confirmed in the Electrical Characteristics table and Typical Characteristics section of the SBOS782A datasheet. For heavier loads, a series isolation resistor (e.g., 50 Ω) is required between the output and capacitance to maintain phase margin and prevent peaking or oscillation - a design practice validated in Figure 14 and Figure 15 of the datasheet.

Does the TLV4170ID support true rail-to-rail input operation?

The TLV4170ID supports input voltages from (V−) − 0.1 V to (V+) − 2 V under normal operation, as specified in the Electrical Characteristics table. Full rail-to-rail input (i.e., down to V− and up to V+) is possible but results in reduced performance including degraded CMRR and increased offset - the device does not guarantee specifications outside the (V−) − 0.1 V to (V+) − 2 V range.

Can the TLV4170ID operate from a single 3.3-V supply?

Yes, the TLV4170ID is fully specified from 2.7 V to 36 V single supply, including 3.3 V. At 3.3 V, it maintains 1.2 MHz gain bandwidth, 22 nV/√Hz noise density, and rail-to-rail output swing - enabling use in low-voltage IoT sensor nodes and portable diagnostics where supply headroom is constrained.

What is the ESD rating of the TLV4170ID, and how does it impact board-level design?

The TLV4170ID has ±4000-V HBM and ±750-V CDM ESD ratings per JEDEC JS-001 and JESD22-C101. These ratings reflect internal protection diodes and absorption structures shown in Figure 27 of the datasheet. Board-level design must still limit input current to ≤10 mA using series resistors, especially in G = 1 configurations with fast-ramping signals, to prevent forward-biasing internal protection diodes.

How does the TLV4170ID's phase-reversal protection work in practice?

The TLV4170ID incorporates internal circuitry that prevents output polarity inversion when inputs exceed the linear common-mode range - instead of reversing phase, the output clamps toward the appropriate rail. This behavior is demonstrated in Figure 16 ("No Phase Reversal") of the datasheet and eliminates latch-up risk in noninverting amplifier configurations used in tracking amplifiers and line receivers exposed to transient overvoltage.