Texas Instruments SA5532APG4

Overview

SA5532APG4 from Texas Instruments is a dual low-noise operational amplifier optimized for high-fidelity audio and precision analog signal conditioning. It delivers 5 nV/√Hz input noise voltage at 1 kHz, 12 MHz unity-gain bandwidth, 100 dB common-mode rejection ratio, and 5 V/μs slew rate, operating across –40°C to +85°C in professional audio mixers and broadcast video infrastructure.

For engineers reviewing the SA5532APG4 datasheet, SA5532APG4 pinout, SA5532APG4 application, or SA5532APG4 equivalent, this page provides verified pin functions, thermal performance data, supply voltage limits (±5 V to ±15 V), noise-floor validation, and direct alternatives for industrial-grade dual op-amp replacement.

Technical Context

The SA5532APG4 integrates two internally compensated, unity-gain-stable op-amps with input protection diodes and output short-circuit protection. Its bipolar input stage enables high DC gain (100 V/mV typ) and low input bias current (200–800 nA), while maintaining rail-to-rail output swing capability under ±15 V supplies.

It operates over an extended temperature range (–40°C to +85°C), distinguishing it from NE5532 variants (0°C to +70°C), and supports dual-supply configurations only - no single-supply operation. Input common-mode range extends to ±13 V, enabling robust interfacing with line-level audio signals and sensor front-ends.

Key Specifications

Pinout & Package

SA5532APG4 is supplied in an 8-pin PDIP package (9.81 mm × 6.35 mm), suitable for through-hole prototyping and legacy audio PCBs requiring mechanical robustness and thermal mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NE5532AP and OPA2134PA, SA5532APG4 uniquely balances extended temperature operation, bipolar-input drive strength, and proven audio noise performance - making it the preferred choice for ruggedized pro-audio and broadcast hardware where reliability and signal integrity are co-prioritized.

Availability

SA5532APG4 is available at Aetrix Electronics and suitable for professional audio mixer design, broadcast video infrastructure deployment, and DVD recorder signal chain development requiring stable component supply across extended temperature ranges.

Supply support for SA5532APG4 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 leadership in high-performance op-amps and precision signal-chain solutions.

The SA5532APG4 belongs to TI's legacy high-fidelity audio op-amp family, engineered specifically for low-noise, wide-bandwidth analog signal conditioning in professional audio, broadcast, and industrial instrumentation systems.

FAQ

What is the maximum supply voltage for SA5532APG4?

The absolute maximum supply voltage for SA5532APG4 is ±18 V, but the recommended operating range is ±5 V to ±15 V per TI SLOS075K. Operation beyond ±15 V risks exceeding thermal limits and degrading long-term reliability. The SA5532APG4 must be powered with symmetrical dual supplies - it does not support single-supply operation. Always use 0.1 μF ceramic bypass capacitors directly at pins 4 (VCC–) and 8 (VCC+) to maintain stability.

Does SA5532APG4 support rail-to-rail output swing?

SA5532APG4 does not provide rail-to-rail output swing. Its typical output swing is ±13 V into 600 Ω with ±15 V supplies, meaning it saturates ~2 V below VCC+ and ~2 V above VCC–. This limitation is inherent to its bipolar output stage. For applications requiring full-rail swing, consider modern alternatives like OPA1678 - but note SA5532APG4's superior noise performance makes it irreplaceable in low-noise gain stages where headroom permits.

Is SA5532APG4 pin-compatible with NE5532AP?

Yes, SA5532APG4 is fully pin-compatible with NE5532AP in the PDIP-8 package, sharing identical pinout, footprint, and electrical interface. Both devices use the same 1IN+, 1IN–, OUT1, VCC–, 2IN+, 2IN–, 2OUT, VCC+ configuration. However, SA5532APG4 is rated for –40°C to +85°C operation, whereas NE5532AP is limited to 0°C to +70°C - a critical distinction for thermal design and field reliability.

What is the input bias current specification for SA5532APG4?

The input bias current for SA5532APG4 is 200–800 nA at 25°C (typical 200 nA), rising to 1000 nA over the full –40°C to +85°C range. This bipolar-input characteristic enables high closed-loop gain accuracy in noninverting configurations but requires matched source impedances on both inputs to minimize offset errors. Unlike FET-input op-amps, SA5532APG4 is not suited for ultra-high-impedance sensor nodes (>1 MΩ).

Can SA5532APG4 be used in single-supply applications?

No, SA5532APG4 is not designed for single-supply operation. Its internal architecture requires dual symmetric supplies (e.g., ±12 V or ±15 V) to function correctly. Attempting single-supply use (e.g., 0 V and +15 V) will result in undefined output behavior and potential damage due to input common-mode violation. For single-supply designs, TI recommends alternatives such as TL072 or OPA2340 - but neither matches SA5532APG4's noise or slew-rate performance.