Texas Instruments TLV170IDBVT

Overview

TLV170IDBVT from Texas Instruments is a single-channel, 36-V, EMI-hardened operational amplifier in SOT-23-5 package, featuring 1.2 MHz gain bandwidth, 22 nV/√Hz input voltage noise, 125 µA quiescent current, rail-to-rail output, and operation from 2.7 V to 36 V. It enables precision signal conditioning in high-noise industrial power supplies and battery-powered instrumentation.

For engineers reviewing the TLV170IDBVT datasheet, TLV170IDBVT pinout, TLV170IDBVT application, or TLV170IDBVT equivalent, key selection criteria include its EMI-hardened inputs, –40°C to +125°C temperature range, 10 pA typical input bias current, unity-gain stability with 200-pF load, and input operation 100 mV below negative rail.

Technical Context

The TLV170IDBVT uses a proprietary EMI-hardened input stage with RFI-filtered inputs and phase-reversal protection, allowing safe operation when common-mode voltage exceeds (V+) – 2 V. Its bipolar input stage delivers low offset drift (±2 µV/°C) and high CMRR (110 dB), while maintaining rail-to-rail output swing within 350 mV of each supply rail at full temperature range.

Designed for single-supply and split-supply configurations, it supports stable operation across 2.7 V to 36 V with no performance degradation. The device achieves 0.4 V/µs slew rate and settles to 0.01% (12-bit) in 28 µs for 10-V steps, enabling accurate current-to-voltage conversion and transducer amplification in cost-sensitive systems.

Key Specifications

Pinout & Package

SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 1.05 mm max height, surface-mount, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA192IDBVT and LM321IDBVR, TLV170IDBVT uniquely balances EMI immunity, 125-µA ultra-low IQ, and full industrial temperature range - making it optimal for cost-sensitive, noise-prone power electronics where reliability and efficiency are co-prioritized.

Availability

TLV170IDBVT is available at Aetrix Electronics and suitable for server power supplies, battery-powered instruments, AC-DC converters, and transducer amplifiers requiring stable component supply across extended temperature and EMI-prone environments.

Supply support for TLV170IDBVT 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 delivering analog and embedded processing solutions, with over 50 years of op amp innovation and manufacturing excellence.

The TLVx170 product line was designed specifically for cost-sensitive industrial and power systems requiring EMI resilience, wide supply range, and low power - targeting applications where legacy op amps fail under electromagnetic stress.

FAQ

What is the maximum capacitive load the TLV170IDBVT can drive without external compensation?

The TLV170IDBVT is unity-gain stable and rated to drive up to 200 pF directly, as confirmed in the datasheet's Electrical Characteristics table and Figure 14–15 small-signal overshoot plots. Driving larger loads requires a series isolation resistor (e.g., 50 Ω) between the TLV170IDBVT output and the capacitive node to maintain phase margin and prevent oscillation. This requirement applies regardless of gain configuration and is critical for reliable operation in line driver or ADC buffer roles.

Does the TLV170IDBVT support true single-supply operation with input signals extending below ground?

Yes - the TLV170IDBVT input common-mode range extends 100 mV below the negative supply rail (V–), enabling true single-supply use with inputs referenced to system ground. When V– = 0 V, inputs may go to –0.1 V; combined with rail-to-rail output, this allows full-swing signal processing from 0 V to V+. This capability is validated across –40°C to +125°C and is essential for interfacing with sensors whose outputs dip slightly negative in transient conditions.

How does the EMI-hardening feature of the TLV170IDBVT improve system-level noise immunity?

The TLV170IDBVT incorporates on-die RFI filtering and a hardened input stage that attenuates >100-MHz electromagnetic interference before it reaches the core amplifier, reducing susceptibility to radiated emissions from switch-mode power supplies, motor drives, and RF transceivers. Unlike standard op amps requiring external LC filters, the TLV170IDBVT maintains signal integrity in noisy environments without added components - demonstrated by EMIRR IN+ >60 dB at 900 MHz per Figure 25 in the datasheet.

What is the guaranteed open-loop gain (AOL) of the TLV170IDBVT over temperature and supply voltage?

The TLV170IDBVT guarantees a minimum open-loop gain of 94 dB across –40°C to +125°C and supply voltages from 2.7 V to 36 V, as specified in Section 6.7 of the SBOS782A datasheet. At 25°C and 36-V supply, typical AOL is 130 dB. This high, stable gain ensures precise closed-loop performance in precision instrumentation and feedback control circuits, even under worst-case thermal and voltage conditions.

Can the TLV170IDBVT be used in a dual-supply configuration with ±15 V rails?

Yes - the TLV170IDBVT is fully specified for dual-supply operation from ±1.35 V to ±18 V, including ±15 V. Its input common-mode range spans (V–) – 0.1 V to (V+) – 2 V, and output swings rail-to-rail, delivering ±14.65 V min into 10-kΩ loads at ±15 V. All key parameters - GBW, noise, CMRR, and PSRR - are characterized across this range, making TLV170IDBVT suitable for legacy industrial test equipment and analog signal chains requiring bipolar supplies.