STMicroelectronics LM833YDT

Overview

LM833YDT from STMicroelectronics is a dual low-noise operational amplifier optimized for high-fidelity audio signal conditioning. It delivers 4.5 nV/√Hz input voltage noise, 15 MHz gain bandwidth, 7 V/µs slew rate, 0.002% THD, and ±14 V common-mode input range in an SO-8 package. It is used in stereo preamplifier stages where channel separation (120 dB) and wide dynamic range are critical.

For engineers reviewing the LM833YDT datasheet, LM833YDT pinout, LM833YDT application, or LM833YDT equivalent, key selection criteria include input noise density, open-loop phase margin (60°), full-power bandwidth (120 kHz), output swing into 2 kΩ (±13.9 V), and ESD robustness (2 kV HBM).

Technical Context

The LM833YDT integrates two matched JFET-input op-amp cores on a single die, enabling precise dual-channel amplification without inter-channel crosstalk degradation. Its internal compensation ensures unconditional stability with ≥60° phase margin at unity gain and supports closed-loop gains ≥10 without external compensation.

It operates from ±2.5 V to ±15 V supplies, features rail-to-rail input common-mode range (±14 V), and maintains low distortion (0.002%) across 20 Hz–20 kHz at 3 Vrms output. Input bias current remains below 1 µA, and offset voltage drift is only 2 µV/°C - critical for DC-coupled audio paths.

Key Specifications

Pinout & Package

LM833YDT is housed in a surface-mount SO-8 (Small Outline, 8-pin) package per JEDEC MS-012, with 1.27 mm pitch, 4.9 mm width, and 6.0 mm length. Thermal resistance θ_JA is 150 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-noise op-amp applications.

Compared with NE5532DR and OPA2134PA, LM833YDT uniquely balances industrial temperature range, SO-8 packaging, 15 MHz bandwidth, and proven 0.002% THD in production audio gear - making it optimal for cost-sensitive, high-reliability stereo signal chains.

Availability

LM833YDT is available at Aetrix Electronics and suitable for professional audio mixing consoles, consumer stereo receivers, and broadcast signal processors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LM833YDT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The LM833 belongs to ST's precision analog op-amp product line, engineered specifically for high-fidelity audio signal processing - emphasizing low noise, low distortion, and channel matching in dual configurations.

FAQ

Is LM833YDT pin-compatible with LM833N?

Yes, LM833YDT (SO-8) and LM833N (DIP8) share identical pin functions and electrical specifications, but differ in package type and thermal characteristics. The SO-8 version has higher power dissipation density and requires careful PCB copper area design for thermal management at full ±15 V operation.

Can LM833YDT operate from a single +12 V supply?

Yes - LM833YDT supports single-supply operation with input common-mode range extending to within 1.5 V of VCC− (ground). For optimal dynamic range, bias the non-inverting inputs at VCC/2 using matched resistors, and AC-couple inputs/outputs to avoid DC offset propagation.

What is the maximum capacitive load LM833YDT can drive without instability?

LM833YDT is stable driving up to 100 pF with 2 kΩ load, as verified in Figure 8 of the datasheet. Driving >200 pF requires series output resistance (≥100 Ω) or isolation capacitor to maintain ≥60° phase margin - critical for active filter or cable-driving applications.

Does LM833YDT meet RoHS and REACH compliance?

Yes - LM833YDT is manufactured in ST's ECOPACK®-compliant SO-8 package, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and substance reports are available via ST's official product page under "Environmental Compliance."