NXP Semiconductors SE5234N,112

Overview

SE5234N,112 from Philips Semiconductors is a matched quad low-voltage operational amplifier with rail-to-rail input and output operation, 2.5 MHz unity-gain bandwidth, 0.8 V/µs slew rate, and 700 µA per amplifier supply current. It operates down to 1.8 V supply and delivers 5.5 V_PP into 600 Ω - ideal for portable instrumentation and automotive sensor signal conditioning.

For engineers reviewing the SE5234N,112 datasheet, SE5234N,112 pinout, SE5234N,112 application, or SE5234N,112 equivalent, key selection criteria include rail-to-rail I/O capability at 1.8–5.5 V single supply, matched amplifier offset (≤0.8 mV max between amplifiers), low noise (25 nV/√Hz), and guaranteed –40 °C to +85 °C operation.

Technical Context

The SE5234N,112 integrates four precision op-amps on a single die with matched characteristics: input offset voltage difference ≤0.8 mV and input bias current difference ≤50 nA across all amplifiers at same common-mode level. Its rail-to-rail input stage extends 250 mV beyond both supply rails, while output swings within 50 mV of VCC and GND over full temperature range.

Designed for low-voltage stability, it maintains 2.5 MHz bandwidth and 1.4 µs 1% settling time under ±1 to ±2.75 V dual or +2 to +5.5 V single supply. Output inversion prevention circuitry avoids phase reversal during common-mode overdrive - critical in transducer buffer and motor drive error amplifier roles.

Key Specifications

Pinout & Package

SE5234N,112 is supplied in a 14-pin plastic dual in-line package (DIP), SOT27-1 footprint, with through-hole mounting compatibility and 300-mil body width.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.

Compared with TLC27M4CDR and LMV324IDR, the SE5234N,112 uniquely combines –40 °C to +85 °C operation, rail-to-rail I/O, output inversion prevention, and 2.5 MHz bandwidth - making it the only option among the three qualified for automotive-grade sensor signal chains requiring DC precision and AC fidelity.

Availability

SE5234N,112 is available at Aetrix Electronics and suitable for automotive electronics, portable instrumentation, and industrial metering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SE5234N,112 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

Philips Semiconductors (now NXP Semiconductors) is a Dutch semiconductor company founded in 1953, specializing in analog, logic, and RF ICs for automotive, industrial, and consumer markets.

The NE/SA5234 family was designed specifically for precision, low-voltage, multi-channel signal conditioning - targeting applications where rail-to-rail operation, amplifier matching, and robustness in harsh environments are essential.

FAQ

What is the operating temperature range for the SE5234N,112?

The SE5234N,112 is specified for operation from –40 °C to +85 °C. This extended temperature range is confirmed in the "Recommended Operating Conditions" table of the Philips product data sheet and distinguishes it from the NE5234N variant, which is rated only from 0 °C to +70 °C. The SE5234N,112 achieves this via process and screening enhancements applied to the SA5234 series.

Does the SE5234N,112 support true rail-to-rail input and output operation?

Yes, the SE5234N,112 supports rail-to-rail input operation extending 250 mV beyond both supply rails and rail-to-rail output swing within 50 mV of VCC and GND across its full operating temperature range. This behavior is explicitly verified in the "DC Electrical Characteristics" section, where output voltage swing is specified as VEE+0.05 to VCC–0.05 at light load and remains within 250 mV of rails under full temperature and supply conditions.

What is the maximum supply voltage the SE5234N,112 can tolerate?

The SE5234N,112 has an absolute maximum single-supply voltage rating of 7 V, and ±3.5 V for dual-supply operation. However, the recommended operating range is +2 V to +5.5 V (single) or ±1 V to ±2.75 V (dual). Operation above 5.5 V risks exceeding power dissipation limits and may degrade long-term reliability, even if within absolute maximum ratings.

How does the output inversion prevention feature work in the SE5234N,112?

The SE5234N,112 incorporates internal circuitry that prevents output phase reversal when the input common-mode voltage exceeds the specified range - a failure mode common in conventional op-amps. As shown in Figure 2 of the datasheet, this is achieved by modifying the input stage bias network so the output remains predictable and monotonic during overdrive, which is essential in motor drive error amplifiers and closed-loop transducer buffers.

Is the SE5234N,112 pin-compatible with other quad op-amps in DIP-14 packages?

No, the SE5234N,112 uses a non-standard pinout optimized for matched quad operation: pins 1–3 and 5–7 serve Amp1 and Amp2, while pins 8–10 and 12–14 serve Amp3 and Amp4, with VCC (pin 4) and GND (pin 11) centrally located. This differs from industry-standard quad op-amp pinouts (e.g., LM324, TL074), so direct replacement requires PCB layout revision.