Texas Instruments OPA170ASDRLTEP

Overview

OPA170ASDRLTEP from Texas Instruments is a 36-V, single-supply, low-power operational amplifier in a 5-pin SOT553 (DRL) package, featuring rail-to-rail output, 1.2-MHz gain bandwidth, 19-nV/√Hz input voltage noise density, and operation from –40°C to +150°C. It serves as a precision signal-conditioning amplifier in high-reliability power module monitoring and transducer interfaces.

For engineers reviewing the OPA170ASDRLTEP datasheet, OPA170ASDRLTEP pinout, OPA170ASDRLTEP application, or OPA170ASDRLTEP equivalent, key selection criteria include its extended temperature range, RFI-filtered inputs, ±15-pA max input bias current, 110-µA quiescent current, and ability to operate with input voltages extending 100 mV beyond the negative rail and within 2 V of the positive rail.

Technical Context

The OPA170ASDRLTEP employs a robust CMOS input stage enabling ultra-low input bias current (±15 pA max) and high common-mode rejection (120 dB), while maintaining stable operation with capacitive loads up to 300 pF. Its internal phase-reversal protection prevents output inversion when inputs exceed the common-mode range - a critical feature for fault-tolerant industrial sensing.

Specified across ±1.35 V to ±18 V (or +2.7 V to +36 V), it delivers consistent performance over full supply and temperature ranges: offset voltage drift is ±0.3 µV/°C, open-loop gain is ≥107 dB, and PSRR remains >100 dB at ±18 V. Input operates from (V–) – 0.1 V to (V+) – 2 V under normal conditions, with extended operation possible to V+.

Key Specifications

Pinout & Package

SOT553-5 (DRL) package: 1.7 mm × 1.5 mm × 0.6 mm height, 5-pin plastic small-outline transistor outline with exposed pad not present; optimized for space-constrained aerospace and defense modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA170ASDRLTEP, OPA189IDR trades 12× higher quiescent current and 25°C lower max temperature for microvolt-level precision, while LM7332MME/NOPB offers dual-channel speed at 23× higher IQ and no military-grade lifecycle support - making OPA170ASDRLTEP optimal for ruggedized, low-power, single-channel 150°C applications.

Availability

OPA170ASDRLTEP is available at Aetrix Electronics and suitable for defense avionics, aerospace power management, and medical diagnostic equipment requiring stable component supply across extended temperature and long product lifecycles.

Supply support for OPA170ASDRLTEP 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 heritage in high-reliability op amp design and aerospace-grade manufacturing.

The OPA170-EP product line targets defense, aerospace, and medical applications demanding extended temperature operation (–40°C to +150°C), controlled baseline fabrication, full traceability, and long-term supply assurance - directly addressing MIL-PRF-38535 and DO-254 compliance needs.

FAQ

What is the maximum operating temperature of the OPA170ASDRLTEP?

The OPA170ASDRLTEP is fully specified and qualified for continuous operation from –40°C to +150°C. This extended temperature range is validated per V62/12627-01XE military-grade flow, including reliability testing at junction temperatures up to +150°C. The device maintains all key parameters - including offset voltage, CMRR, and gain bandwidth - across this full range, making it suitable for engine control, downhole tools, and avionics power systems where ambient temperatures exceed 125°C. OPA170ASDRLTEP data sheets confirm operation up to +150°C with no derating required.

Does the OPA170ASDRLTEP support rail-to-rail input operation?

The OPA170ASDRLTEP supports rail-to-rail *output*, but its input common-mode range extends from (V–) – 0.1 V to (V+) – 2 V under normal operation - meaning it is not a full rail-to-rail input amplifier. However, the datasheet explicitly states that the device can operate with inputs extending 100 mV *beyond* the positive rail (up to V+), albeit with reduced performance (e.g., degraded CMRR and gain) within 2 V of V+. This partial input overvoltage capability enables direct interfacing with high-side shunt measurements without external level shifting. OPA170ASDRLTEP's input stage is CMOS-based, delivering ±15 pA max bias current regardless of common-mode voltage.

What packaging and marking does the OPA170ASDRLTEP use?

The OPA170ASDRLTEP is supplied in the SOT553-5 (DRL) package: a 1.7 mm × 1.5 mm × 0.6 mm plastic small-outline transistor outline with five terminals and no exposed thermal pad. Per TI's Package Option Addendum, the top-side marking is "DAQ", and it ships in 250-unit tape-and-reel format (reel width 8.4 mm, pitch 4.0 mm, quadrant Q3). The device carries RoHS-compliant NiPdAu lead finish, MSL Level-1 (unlimited floor life), and is qualified for reflow up to 260°C peak. OPA170ASDRLTEP's compact DRL footprint enables high-density placement in space-constrained defense and medical PCBs.

How does the OPA170ASDRLTEP handle input overvoltage or ESD events?

The OPA170ASDRLTEP integrates internal ESD protection diodes on both inputs rated to 4 kV HBM and 750 V CDM. These diodes provide in-circuit overdrive protection as long as input current is limited to ±10 mA - a value enforced by the Absolute Maximum Ratings. The datasheet recommends adding a series resistor (e.g., 1–10 kΩ) on driven inputs to ensure compliance. Critically, the device features built-in phase-reversal protection: unlike many op amps, it avoids output inversion when inputs exceed the common-mode range, instead limiting output to the appropriate rail. OPA170ASDRLTEP's robust input structure makes it suitable for harsh industrial environments with transient coupling and uncontrolled signal routing.

Is the OPA170ASDRLTEP pin-compatible with other members of the OPA170 family?

Yes - the OPA170ASDRLTEP shares identical pinout and footprint with the commercial OPA170 and automotive OPA170-Q1 in the same SOT553-5 (DRL) package. All three variants use pins 1–5 for IN–, IN+, V–, OUT, and V+, respectively, and have identical electrical characteristics except for temperature range and qualification level. This allows drop-in replacement during design migration: for example, upgrading from OPA170 to OPA170ASDRLTEP requires no PCB changes, only updated procurement and documentation to meet defense/aerospace traceability requirements. OPA170ASDRLTEP's VID number V62/12627-01XE confirms its military-grade pedigree while preserving mechanical and electrical compatibility.