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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

NXP Semiconductors SA5234D/01,512

Name: SA5234D/01,512
Brand: NXP Semiconductors
SKU: SA5234D/01,512
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA5234D/01,512

Manufacturer:: NXP Semiconductors

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: SA5234D/01,512.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SO

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Product details

Overview

SA5234D/01,512 from NXP Semiconductors (formerly Philips) 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 battery-powered signal conditioning in portable medical monitors and remote meters.

For engineers reviewing the SA5234D/01,512 datasheet, SA5234D/01,512 pinout, SA5234D/01,512 application, or SA5234D/01,512 equivalent, key selection criteria include rail-to-rail I/O swing within 50 mV of rails, matched amplifier offset (≤0.4 mV typical), low-noise performance (25 nV/√Hz), and guaranteed operation across –40 °C to +85 °C.

Technical Context

The SA5234D/01,512 integrates four precision op-amps on a single die with matched input offset voltage (≤0.4 mV typ) and bias current (≤70 nA typ at V_CM > V_EE +1 V), enabling high-accuracy differential sensing without external trimming. Its output inversion prevention circuit eliminates phase reversal during common-mode overdrive - critical in transducer buffer and motor drive error amplifier roles.

Designed for single-supply operation from +2 V to +5.5 V (or ±1 V to ±2.75 V dual), it maintains 90 dB open-loop gain (A_VOL) and 80 dB CMRR across full temperature range, with 1.4 µs 1% settling time supporting fast step-response applications like 5 V datacom bus receivers.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+2 V to +5.5 V single supply; enables direct interface with Li-ion and 3.3 V logic systems
Unity-Gain Bandwidth	2.5 MHz typical; supports stable closed-loop gain ≥1 with ≤55° phase margin at 50 pF load
Output Swing	Within 50 mV of both rails at full temperature range; ensures maximum dynamic range in low-voltage ADC driver stages
Input Offset Voltage	±0.4 mV max (typical), matched ≤0.4 mV between amplifiers; reduces calibration burden in multi-channel sensor arrays
Supply Current	700 µA per amplifier (typical); allows four-channel operation under 3 mA total - suitable for always-on portable instrumentation
Input Voltage Noise	25 nV/√Hz at 1 kHz; preserves SNR in low-level audio preamp and medical ECG front-end designs
Slew Rate	0.8 V/µs minimum; supports 1 V step response with 1.4 µs 1% settling - adequate for 10 kHz THD-critical audio paths

Pinout & Package

SA5234D/01,512 is housed in a 14-pin plastic small outline (SO) package (SOT108-1), 3.9 mm body width, surface-mount compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	OUTPUT1	Amplifier 1 output; rail-to-rail capable, ±15 mA drive strength
2	–INPUT1	Inverting input of Amp1; protected by ESD diodes, supports common-mode down to V_EE – 0.25 V
3	+INPUT1	Non-inverting input of Amp1; same ESD protection and common-mode range as Pin 2
4	VCC	Positive supply rail; accepts +2 V to +5.5 V; decoupling required within 5 mm
5	+INPUT2	Non-inverting input of Amp2; matched to Amp1 for differential pair configurations
6	–INPUT2	Inverting input of Amp2; matched offset and bias current relative to Amp1
7	OUTPUT2	Amplifier 2 output; identical AC/DC specs to OUTPUT1
8	OUTPUT3	Amplifier 3 output; fully independent channel with same rail-to-rail swing
9	–INPUT3	Inverting input of Amp3; matched characteristics enable 3-channel synchronized sensing
10	+INPUT3	Non-inverting input of Amp3; supports common-mode up to V_CC + 0.25 V
11	GND	Ground reference; must be low-impedance plane shared with all analog return paths
12	+INPUT4	Non-inverting input of Amp4; completes quad set for multi-sensor or feedback loop applications
13	–INPUT4	Inverting input of Amp4; matched to other channels for system-level offset cancellation
14	OUTPUT4	Amplifier 4 output; supports independent load driving up to 12 mA peak sink/source

Key Features

Feature	Design Value
Rail-to-rail input and output	Enables full-scale signal utilization from 1.8 V supply; eliminates level-shifting circuits in portable 3.3 V systems
Matched amplifier parameters	Offset voltage difference ≤0.4 mV and bias current difference ≤25 nA between any two amps - simplifies multi-channel calibration
Output inversion prevention	Prevents phase reversal during input overdrive beyond rails - essential for transducer buffers where common-mode excursions occur
Low-noise, low-power operation	25 nV/√Hz noise at 1 kHz with only 700 µA per amplifier - achieves 80 dB SNR in 10 kHz bandwidth at 100 µV input
ESD and short-circuit protection	2000 V HBM ESD rating and internal current limiting allow robust handling in automated assembly and field-replaceable modules

Applications

Portable Medical Monitors	Remote Metering Systems
Use Scenario: Amplifying low-amplitude bio-signals (e.g., ECG, pulse oximetry) in handheld diagnostic devices powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Front-end instrumentation amplifier stage with rail-to-rail I/O, providing gain and buffering before 12-bit SAR ADC sampling. Use Value: 25 nV/√Hz input noise and 700 µA per amplifier enable >80 dB SNR at 100 µV input while extending battery life beyond 72 hours.	Use Scenario: Signal conditioning for current/voltage sensors in smart utility meters deployed in outdoor environments from –40 °C to +85 °C. IC Role / Device Role / Timing Role: Quad-channel transducer buffer and anti-alias filter driver, leveraging matched offsets to minimize channel-to-channel gain drift. Use Value: Matched offset ≤0.4 mV and guaranteed operation across –40 °C to +85 °C reduce calibration frequency and improve long-term meter accuracy.
5 V Datacom Bus Receivers	Audio Pre-amplifier Stages
Use Scenario: Receiving and conditioning differential signals on legacy 5 V data communication buses (e.g., RS-485 stubs, industrial CAN physical layer interfaces). IC Role / Device Role / Timing Role: Single-supply receiver amplifier with rail-to-rail output swing, interfacing directly to 5 V logic-compatible comparators or ADCs. Use Value: Output swing within 50 mV of rails ensures full 4.9 V_PP signal delivery into 10 kΩ loads - meeting 5 V bus receiver threshold margins.	Use Scenario: Low-noise pre-amplification of microphone or line-level audio signals in battery-powered voice recorders and hearing aids. IC Role / Device Role / Timing Role: First-stage gain block with 2.5 MHz bandwidth and 0.8 V/µs slew rate, preserving harmonic integrity up to 20 kHz. Use Value: 0.1% THD at 10 kHz and 1 V_P-P output ensures clean audio reproduction without clipping or intermodulation distortion.

Portable Medical Monitors

Remote Metering Systems

Use Scenario: Amplifying low-amplitude bio-signals (e.g., ECG, pulse oximetry) in handheld diagnostic devices powered by coin-cell or Li-ion batteries.

IC Role / Device Role / Timing Role: Front-end instrumentation amplifier stage with rail-to-rail I/O, providing gain and buffering before 12-bit SAR ADC sampling.

Use Value: 25 nV/√Hz input noise and 700 µA per amplifier enable >80 dB SNR at 100 µV input while extending battery life beyond 72 hours.

Use Scenario: Signal conditioning for current/voltage sensors in smart utility meters deployed in outdoor environments from –40 °C to +85 °C.

IC Role / Device Role / Timing Role: Quad-channel transducer buffer and anti-alias filter driver, leveraging matched offsets to minimize channel-to-channel gain drift.

Use Value: Matched offset ≤0.4 mV and guaranteed operation across –40 °C to +85 °C reduce calibration frequency and improve long-term meter accuracy.

5 V Datacom Bus Receivers

Audio Pre-amplifier Stages

Use Scenario: Receiving and conditioning differential signals on legacy 5 V data communication buses (e.g., RS-485 stubs, industrial CAN physical layer interfaces).

IC Role / Device Role / Timing Role: Single-supply receiver amplifier with rail-to-rail output swing, interfacing directly to 5 V logic-compatible comparators or ADCs.

Use Value: Output swing within 50 mV of rails ensures full 4.9 V_PP signal delivery into 10 kΩ loads - meeting 5 V bus receiver threshold margins.

Use Scenario: Low-noise pre-amplification of microphone or line-level audio signals in battery-powered voice recorders and hearing aids.

IC Role / Device Role / Timing Role: First-stage gain block with 2.5 MHz bandwidth and 0.8 V/µs slew rate, preserving harmonic integrity up to 20 kHz.

Use Value: 0.1% THD at 10 kHz and 1 V_P-P output ensures clean audio reproduction without clipping or intermodulation distortion.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC2274CDR	Higher supply current (1.1 mA/amplifier), lower bandwidth (2.2 MHz), no output inversion prevention	Limited suitability for transducer buffers with common-mode overdrive; requires external clamping	Preferred where higher drive strength (60 mA) is needed but rail-to-rail input is not mandatory
LMV324IDR	Lower cost, wider supply range (+2.7 V to +5.5 V), but only rail-to-rail output (not input); 1.25 MHz bandwidth	Not suitable for true rail-to-rail input sensing below 200 mV above ground - limits use in ultra-low-voltage sensor nodes	Appropriate for general-purpose 3.3 V signal conditioning where input common-mode range >200 mV is acceptable

Compared with TLC2274CDR and LMV324IDR, SA5234D/01,512 uniquely combines rail-to-rail input/output, matched quad topology, output inversion prevention, and sub-1 mA quiescent current - making it the only option among the three qualified for precision, low-voltage, multi-channel sensing in extended temperature industrial and medical applications.

Availability

SA5234D/01,512 is available at Aetrix Electronics and suitable for portable medical monitors, remote metering systems, and 5 V datacom bus receivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SA5234D/01,512 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

NXP Semiconductors, headquartered in Eindhoven, Netherlands, develops high-performance analog and mixed-signal ICs for automotive, industrial, and consumer applications - with roots in Philips Semiconductor's legacy of precision analog design.

The SA5234D/01,512 belongs to NXP's legacy precision op-amp product line, engineered specifically for low-voltage, rail-to-rail, multi-channel signal conditioning in battery-constrained and thermally demanding environments.

FAQ

What is the operating temperature range for SA5234D/01,512?

The SA5234D/01,512 is rated for operation from –40 °C to +85 °C, as confirmed in the Philips (now NXP) product data sheet under Recommended Operating Conditions. This extended temperature range makes SA5234D/01,512 suitable for industrial and automotive-adjacent applications such as remote utility meters and under-hood sensor interfaces where ambient thermal stress is significant.

Does SA5234D/01,512 support true rail-to-rail input operation?

Yes, SA5234D/01,512 supports rail-to-rail input operation with a common-mode voltage range extending 250 mV beyond both supply rails (V_EE – 0.25 V to V_CC + 0.25 V). This capability is explicitly specified in the DC Electrical Characteristics table and enables accurate amplification of signals near ground or V_CC, critical in single-supply sensor front-ends.

What is the maximum output current capability of SA5234D/01,512?

The SA5234D/01,512 provides ±15 mA continuous output current per amplifier, with peak load current capability of ±12 mA over the full temperature range. This is sufficient to drive 600 Ω loads to 5.5 V_PP and supports direct interfacing with medium-impedance ADC inputs or comparator stages without external buffers.

How does the output inversion prevention feature work in SA5234D/01,512?

SA5234D/01,512 incorporates an internal output inversion prevention circuit that disables the output stage when input common-mode voltage exceeds safe limits - preventing phase reversal during overdrive conditions. This behavior is illustrated in Figure 2 of the datasheet and distinguishes SA5234D/01,512 from conventional op-amps in transducer buffer applications where input excursions beyond rails are routine.

Is SA5234D/01,512 pin-compatible with NE5234D or SA5234N variants?

No - SA5234D/01,512 shares the same SOT108-1 SO14 package and pinout as NE5234D, but differs from SA5234N (DIP14, SOT27-1). While electrical functionality is identical across SA5234D and NE5234D, SA5234D/01,512 is the industrial-grade version with –40 °C to +85 °C qualification, whereas NE5234D is commercial-grade (0 °C to +70 °C). PCB layout must match the SO14 footprint.

SA5234D/01,512 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 0.8V/µs

Gain Bandwidth Product:: -

-3db Bandwidth:: 2.5 MHz

Current - Input Bias:: 25 nA

Voltage - Input Offset:: 200 µV

Current - Supply:: 2.8mA (x4 Channels)

Current - Output / Channel:: 12 mA

Voltage - Supply Span (Min):: 2 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

SA5234D/01,512 FAQ

1.How can I place an order for SA5234D/01,512 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA5234D/01,512 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SA5234D/01,512 reliable?

The price and inventory of SA5234D/01,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5234D/01,512 is usually 5 days.

3.What payment methods are accepted for SA5234D/01,512?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5234D/01,512 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA5234D/01,512?

SA5234D/01,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA5234D/01,512 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SA5234D/01,512?

For technical support, including SA5234D/01,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5234D/01,512 requirements.

6.How does Aetrix verify that SA5234D/01,512 is sourced from the original manufacturer or authorized distributors?

All SA5234D/01,512 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA5234D/01,512 meets industry standards.

7.What is the process for return or replacement of SA5234D/01,512?

All SA5234D/01,512 units undergo pre-shipment inspection (PSI). If there is an issue with SA5234D/01,512, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SA5234D/01,512 part is unused and in its original packaging.

Return procedure for SA5234D/01,512:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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