Texas Instruments TLV4170IDR

Overview

TLV4170IDR from Texas Instruments is a quad-channel, 36-V, rail-to-rail output operational amplifier with EMI-hardened inputs, 1.2 MHz gain bandwidth, 22 nV/√Hz input voltage noise density at 1 kHz, and 125 µA quiescent current per amplifier-designed for precision signal conditioning in server power supplies and battery-powered instrumentation.

For engineers reviewing the TLV4170IDR datasheet, TLV4170IDR pinout, TLV4170IDR application, or TLV4170IDR equivalent, key selection criteria include its 2.7 V to 36 V single-supply operation, –40°C to +125°C temperature range, ±10 pA typical input bias current, and ability to drive 200-pF capacitive loads while maintaining unity-gain stability.

Technical Context

The TLV4170IDR implements a P-channel input stage enabling rail-to-rail input operation down to 100 mV below V– and within 2 V of V+, with phase-reversal protection that clamps output instead of inverting when common-mode limits are exceeded. Its EMI-hardened architecture includes RFI-filtered inputs and internal ESD protection rated at ±4000 V HBM and ±750 V CDM.

It delivers 110 dB CMRR and 105 dB PSRR (typical) across –40°C to +125°C, supports microvolt-level signal amplification with 0.5 mV max input offset voltage at 25°C, and achieves 0.0002% THD+N at 1 kHz-enabling high-fidelity transducer and line driver applications without external filtering.

Key Specifications

Pinout & Package

TLV4170IDR is packaged in a 14-pin SOIC (D package) with nominal body size 8.65 mm × 3.91 mm and standard 1.27-mm lead pitch. The package supports automated assembly and provides thermal resistance R_θJA = 93.2°C/W under JEDEC JESD51-7 conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV4170IDR, OPA4197IPWR trades EMI immunity and ultra-low IQ for higher speed and lower noise, while LM324DR sacrifices precision, rail-to-rail capability, and EMI robustness for legacy compatibility and unit cost-making TLV4170IDR the optimal balance for noise-immune, low-power, precision quad amplification.

Availability

TLV4170IDR is available at Aetrix Electronics and suitable for server power supplies, battery-powered instrumentation, and AC-DC converter feedback circuits requiring stable component supply, extended temperature operation, and EMI-hardened performance.

Supply support for TLV4170IDR 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 over 90 years of innovation in precision amplifiers and power management ICs.

The TLVx170 family-including TLV4170IDR-is designed for cost-sensitive, high-reliability systems requiring EMI resilience, wide supply range, and microvolt-level accuracy across industrial and computing applications.

FAQ

What is the maximum capacitive load the TLV4170IDR can drive while remaining stable?

The TLV4170IDR is unity-gain stable with up to 200-pF capacitive load without external compensation. This specification is verified across –40°C to +125°C and applies to all four channels of the TLV4170IDR. For loads exceeding 200 pF, a series isolation resistor (e.g., 50 Ω) between the TLV4170IDR output and the capacitive node is required to maintain phase margin and prevent peaking or oscillation.

Does the TLV4170IDR support true rail-to-rail input operation?

The TLV4170IDR supports input voltages from (V−) − 0.1 V to (V+) − 2 V under normal operation, enabling signals to extend 100 mV below the negative rail. Full rail-to-rail input (i.e., down to V− and up to V+) is possible but results in reduced performance-specifically increased input offset voltage and degraded CMRR-as documented in the TLV4170IDR datasheet Section 6.7.

What is the ESD rating of the TLV4170IDR, and how is it implemented?

The TLV4170IDR features ±4000-V HBM and ±750-V CDM ESD ratings per JEDEC standards. Internal protection uses steering diodes from each input and output pin to the V+ and V− rails, plus an absorption device that activates only during overstress events. These structures remain inactive during normal operation and do not affect TLV4170IDR's 10¹²-Ω input impedance or signal integrity.

Can the TLV4170IDR operate from a single 3.3-V supply?

Yes, the TLV4170IDR operates from a minimum supply of 2.7 V, making it fully compatible with 3.3-V single-supply systems. At 3.3 V, it maintains rail-to-rail output swing (within 350 mV of each rail), 125 µA/channel quiescent current, and 1.2-MHz gain bandwidth-enabling use in low-voltage portable instrumentation where the TLV4170IDR's EMI hardening remains effective.

How does the phase-reversal protection in the TLV4170IDR function?

When input common-mode voltage exceeds (V+) − 2 V, the TLV4170IDR's internal circuitry clamps the output to the appropriate supply rail instead of reversing polarity-a failure mode common in non-EMI-hardened op amps. This behavior is confirmed in Figure 16 of the TLV4170IDR datasheet and ensures safe operation in overvoltage fault conditions without system latch-up.