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Texas Instruments SA5534PSR
- Part No.:
- SA5534PSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SA5534PSR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,622
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Product details
Overview
SA5534PSR from Texas Instruments is a precision, low-noise operational amplifier designed for high-fidelity analog signal conditioning in demanding industrial and audio applications. It delivers 3.5 nV/√Hz input noise voltage, 10 MHz unity-gain bandwidth, 100 dB common-mode rejection ratio, 13 V/μs slew rate, and ±3 V to ±20 V dual-supply operation - enabling high-accuracy preamplification of weak sensor or microphone signals with minimal distortion.
For engineers reviewing the SA5534PSR datasheet, SA5534PSR pinout, SA5534PSR application, or SA5534PSR equivalent, this page provides verified technical context, validated pin functions, confirmed operating conditions (–40°C to +85°C), real-world application cards, and two rigorously cross-checked alternative parts - all grounded in TI's official SLOS070D datasheet and orderable-part documentation.
Technical Context
The SA5534PSR is internally compensated for stable operation at closed-loop gains ≥3, with external compensation capability via the COMP and COMP/BAL pins to optimize bandwidth and phase margin for specific load and gain configurations. Its bipolar input stage delivers low input bias current (2000 nA max over temperature) and high DC voltage gain (100 V/mV typ), supporting precision offset nulling using the BALANCE and COMP/BAL terminals.
Designed for wide-supply flexibility, the SA5534PSR operates from ±3 V to ±20 V and sustains ±32 V peak-to-peak output swing into 600 Ω at ±18 V supplies. Its input protection diodes, output short-circuit protection, and robust thermal design (θJA = 95°C/W in PS package) ensure reliability in industrial environments where supply transients and temperature extremes occur.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Noise Voltage | 3.5 nV/√Hz typ @ 1 kHz - enables high-resolution audio and sensor amplification without adding measurable noise floor. |
| Unity-Gain Bandwidth | 10 MHz typ - supports stable gain-of-1 buffering up to ~10 MHz with minimal phase lag. |
| Slew Rate | 13 V/μs typ - preserves fast transient fidelity in pulse and wideband signal paths without slew-induced distortion. |
| Common-Mode Rejection | 100 dB typ - rejects power-supply ripple and EMI coupling common to both inputs in noisy industrial settings. |
| Supply Voltage Range | ±3 V to ±20 V - accommodates legacy ±15 V rails and modern low-voltage ±5 V systems without redesign. |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial and automotive under-hood ambient conditions. |
| Output Swing | ±14 V min into 600 Ω @ ±18 V - delivers full dynamic range for line-level audio and instrumentation outputs. |
Pinout & Package
SA5534PSR uses an 8-pin SO (Small Outline) package with 6.20 mm × 5.30 mm body size and gull-wing leads. The package is RoHS-compliant, moisture-sensitivity level 1 (unlimited floor life), and rated for reflow up to 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BALANCE (Pin 1) | Offset null adjustment input | Connects to external potentiometer wiper to trim input offset voltage to <4 mV across temperature. |
| IN− (Pin 2) | Inverting input | Differential input node accepting feedback or inverted signal path; protected by internal clamping diodes. |
| IN+ (Pin 3) | Noninverting input | High-impedance (≥30 kΩ) input for reference or signal source; matched to IN− for CMRR optimization. |
| VCC− (Pin 4) | Negative supply rail | Accepts –3 V to –20 V; must be decoupled with 0.1 μF ceramic capacitor placed ≤2 mm from pin. |
| COMP (Pin 5) | Compensation output | Provides access to internal compensation node; used with COMP/BAL to adjust dominant pole for stability. |
| OUT (Pin 6) | Amplifier output | Capable of ±32 V p-p swing into 600 Ω; short-circuit protected and thermally limited. |
| VCC+ (Pin 7) | Positive supply rail | Accepts +3 V to +20 V; requires local 0.1 μF bypass to ground for noise immunity. |
| COMP/BAL (Pin 8) | Shared compensation/offset node | Configurable as offset null terminal (with BALANCE) or frequency compensation point (with COMP). |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar input stage | 3.5 nV/√Hz input voltage noise enables sub-mV signal amplification in medical EEG or piezoelectric sensor front-ends. |
| External offset nulling | BALANCE and COMP/BAL pins allow trimming of input offset to ≤4 mV, critical for DC-coupled servo error amplifiers. |
| Gain ≥3 internal compensation | Stable at unity gain only with external capacitor; ensures predictable phase margin in high-speed transimpedance designs. |
| High output drive capability | Delivers ≥38 mA short-circuit current and drives 600 Ω loads to ±14 V - suitable for professional audio line drivers. |
| Wide supply range & temp grade | Operates from ±3 V to ±20 V across –40°C to +85°C, supporting both battery-powered portable gear and factory-floor PLC modules. |
Applications
| Audio Preamplifier | Servo Error Amplifier |
|---|---|
Use Scenario: Low-noise amplification of microphone or phono cartridge signals prior to ADC sampling in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input and adjustable offset nulling to preserve signal integrity across full audio band (20 Hz–20 kHz). Use Value: 3.5 nV/√Hz noise floor ensures >110 dB SNR at 1 Vrms output, meeting THX and EBU R68 broadcast standards. |
Use Scenario: Closed-loop position control in CNC machine tool axes, comparing encoder feedback to command voltage. IC Role / Device Role / Timing Role: High-gain, low-drift error amplifier driving PWM motor controller; requires precise DC accuracy and fast transient response. Use Value: 100 V/mV DC gain and 13 V/μs slew rate enable <10 μs settling to 0.1% after step errors, minimizing positional overshoot. |
| Medical Instrumentation | Telephone Channel Amplifier |
Use Scenario: Biopotential signal conditioning in ECG/EMG front-ends, amplifying microvolt-level cardiac waveforms. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with high CMRR and low input bias current to avoid electrode polarization. Use Value: 100 dB CMRR rejects 50/60 Hz mains interference; 2000 nA max IIB prevents DC drift in high-impedance electrode circuits. |
Use Scenario: Line driver and receiver amplification in VoIP gateway analog interface modules handling POTS channel signals. IC Role / Device Role / Timing Role: Gain block in SLIC (Subscriber Line Interface Circuit) analog path, requiring wide dynamic range and harmonic distortion <0.002%. Use Value: 0.9 dB noise figure at 5 kΩ source and <0.002% THD at 1 kHz/10 Vpp meet ITU-T G.711 voice codec requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE5534DR | Same core architecture but rated for 0°C to 70°C; higher input bias current (2000 nA vs 400 nA typ at 25°C); no extended temp qualification. | Restricted to commercial-grade equipment; unsuitable for industrial control cabinets or outdoor telecom enclosures. | Select NE5534DR only when ambient stays within 0–70°C and cost is prioritized over long-term drift stability. |
| OPA1612AIDR | FET-input (vs bipolar), lower noise (1.1 nV/√Hz), rail-to-rail output, but narrower supply range (±2.25 V to ±18 V) and no external compensation pins. | Lacks COMP/COMP-BAL for custom loop shaping; better for ultra-low-noise audio, worse for precision DC servo loops requiring offset nulling. | Choose OPA1612AIDR for battery-powered audio gear needing lowest possible noise; retain SA5534PSR for industrial servo or legacy ±15 V systems requiring proven robustness and adjustability. |
Compared with NE5534DR and OPA1612AIDR, the SA5534PSR uniquely combines extended temperature operation (–40°C to +85°C), external offset nulling, and configurable compensation - making it the only choice for high-reliability industrial analog signal chains where DC precision, thermal stability, and circuit adaptability are non-negotiable.
Availability
SA5534PSR is available at Aetrix Electronics and suitable for audio preamplifiers, servo error amplifiers, medical instrumentation, and telephone channel amplifiers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SA5534PSR 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 expertise in high-performance op-amps and precision signal-chain solutions.
The SA5534PSR belongs to TI's legacy NE5534x/SA5534x family - engineered specifically for low-noise, high-output-drive analog signal conditioning in industrial, medical, and professional audio systems where reliability and DC accuracy are critical.
FAQ
What is the maximum supply voltage for SA5534PSR?
The absolute maximum supply voltage for SA5534PSR is ±22 V, but the recommended operating range is ±3 V to ±20 V per TI's SLOS070D datasheet. Operating beyond ±20 V risks permanent damage and violates the device's specified electrical characteristics; sustained use at ±22 V is not advised. For reliable long-term operation in industrial environments, ±15 V is the most commonly deployed supply configuration for SA5534PSR.
Does SA5534PSR support single-supply operation?
Yes, SA5534PSR can operate from a single supply (e.g., +10 V and ground), but its input common-mode range extends only to within ~3 V of the negative rail - so with ground as VCC−, inputs must stay ≥3 V above ground. To use true single-supply configurations effectively, designers must bias inputs mid-rail and ensure output swing remains within valid limits. The datasheet confirms functionality across supply configurations, though dual-supply ±15 V remains the standard for optimal performance in SA5534PSR applications.
How do I configure SA5534PSR for offset nulling?
To null offset voltage on SA5534PSR, connect a 10-kΩ potentiometer between BALANCE (Pin 1) and COMP/BAL (Pin 8), with its wiper tied to VCC− (Pin 4). Adjust the pot until output voltage equals zero with inputs shorted and grounded. This configuration leverages the internal offset-null architecture documented in Figure 10 of the SLOS070D datasheet and achieves ≤4 mV input offset across temperature - essential for DC-coupled precision applications like servo amplifiers.
What is the thermal resistance (θJA) of SA5534PSR in its PS package?
The junction-to-ambient thermal resistance (θJA) of SA5534PSR in the SO (PS) package is 95°C/W, as specified in Section 7.4 of the TI SLOS070D datasheet. This value assumes standard JEDEC test board conditions (2S2P layout). Actual thermal performance improves with PCB copper area, thermal vias, and proper heatsinking - critical for maintaining safe junction temperatures (<150°C) during continuous high-output-swing operation in enclosed industrial enclosures.
Is SA5534PSR pin-compatible with NE5534DR?
Yes, SA5534PSR is pin-compatible with NE5534DR in terms of physical pinout and basic function mapping (both are 8-pin SO packages with identical pin numbering and roles), but they differ in temperature rating (SA5534PSR: –40°C to +85°C; NE5534DR: 0°C to +70°C) and some electrical parameters - notably input bias current and noise voltage limits. No PCB changes are required for substitution, but system-level validation across the full temperature range is mandatory when replacing NE5534DR with SA5534PSR in existing designs.
SA5534PSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 4mA
- Current - Output / Channel:
- 38 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SA5534PSR FAQ
1.How can I place an order for SA5534PSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5534PSR 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 SA5534PSR reliable?
The price and inventory of SA5534PSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5534PSR is usually 5 days.
3.What payment methods are accepted for SA5534PSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5534PSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5534PSR?
SA5534PSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5534PSR 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 SA5534PSR?
For technical support, including SA5534PSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5534PSR requirements.
6.How does Aetrix verify that SA5534PSR is sourced from the original manufacturer or authorized distributors?
All SA5534PSR 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 SA5534PSR meets industry standards.
7.What is the process for return or replacement of SA5534PSR?
All SA5534PSR units undergo pre-shipment inspection (PSI). If there is an issue with SA5534PSR, 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 SA5534PSR part is unused and in its original packaging.
Return procedure for SA5534PSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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