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Texas Instruments SA5534DR
- Part No.:
- SA5534DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SA5534DR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,295
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Product details
Overview
SA5534DR from Texas Instruments is a precision, low-noise operational amplifier optimized for high-fidelity audio and industrial signal conditioning. It delivers 3.5 nV/√Hz input noise voltage, 10 MHz unity-gain bandwidth, and 13 V/μs slew rate with ±3 V to ±20 V dual-supply operation, enabling use in microphone preamplifiers and servo error amplifiers requiring wide dynamic range and DC stability.
For engineers reviewing the SA5534DR datasheet, SA5534DR pinout, SA5534DR application, or SA5534DR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives with functional distinctions, and supply-chain support for volume production and long-life embedded systems.
Technical Context
The SA5534DR is internally compensated for stable operation at gain ≥ 3, with external compensation capability via COMP and COMP/BAL pins to tailor frequency response for specific closed-loop configurations. Its bipolar input stage enables low input bias current (300 nA typ) and high DC voltage gain (100 V/mV typ), supporting precision DC-coupled instrumentation.
It features dedicated BALANCE and COMP/BAL terminals for offset nulling and external capacitor-based frequency compensation-enabling optimization of bandwidth vs. phase margin trade-offs without altering gain-setting resistors. The device operates across –40°C to +85°C, distinguishing it from the commercial-grade NE5534DR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Noise Voltage | 3.5 nV/√Hz typ @ 1 kHz - enables high-resolution audio front-ends with minimal added noise floor |
| Unity-Gain Bandwidth | 10 MHz typ - supports stable unity-gain buffers and wideband active filters up to ~1 MHz |
| Slew Rate | 13 V/μs typ - preserves transient fidelity in fast-slewing signals like digital audio pulses or step-response critical control loops |
| Common-Mode Rejection | 100 dB typ - rejects power-supply ripple and ground-bounce interference in single-ended sensor interfaces |
| Supply Voltage Range | ±3 V to ±20 V - accommodates both low-power portable designs and high-swing industrial analog rails |
| Operating Temperature | –40°C to +85°C - qualified for automotive under-hood, industrial PLC, and medical equipment environments |
| Output Swing (±18 V) | 32 VPP typ into 600 Ω - delivers full-scale line-level audio output without clipping in professional gear |
Pinout & Package
SA5534DR is housed in an SOIC-8 (D) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and RoHS-compliant NiPdAu lead finish. It is rated MSL Level-2-260°C-1 year and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BALANCE (Pin 1) | Offset null adjustment terminal | Connects to center tap of 10-kΩ potentiometer between VCC+ and VCC− to trim input offset voltage to <1 mV |
| IN− (Pin 2) | Inverting input | Primary feedback node in inverting amplifier configurations; accepts differential or single-ended signals with 12 V common-mode range |
| IN+ (Pin 3) | Noninverting input | High-impedance (≥30 kΩ) input for unity-gain buffers and noninverting amplifiers; referenced to system ground or virtual ground |
| 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 internal compensation node for external capacitor connection to COMP/BAL to adjust dominant pole |
| OUT (Pin 6) | Amplifier output | Capable of ±14 V swing into 600 Ω; short-circuit protected; drives capacitive loads up to 100 pF stably |
| VCC+ (Pin 7) | Positive supply rail | Accepts +3 V to +20 V; requires local 0.1-μF bypass to minimize PSRR degradation above 10 kHz |
| COMP/BAL (Pin 8) | Shared compensation/offset node | Connects to COMP pin via external capacitor (e.g., 22 pF) for bandwidth tuning, or to BALANCE pot for nulling |
Key Features
| Feature | Design Value |
|---|---|
| Low harmonic distortion | 0.9 dB noise figure @ RS = 5 kΩ - preserves signal integrity in high-fidelity audio paths without post-filtering |
| External compensation | COMP and COMP/BAL pins enable bandwidth vs. stability tuning - allows 10 MHz GBW to be reduced to 1 MHz for improved phase margin in noisy environments |
| Offset nulling capability | Dedicated BALANCE and COMP/BAL pins support sub-millivolt DC accuracy - critical for precision transducer signal chains and servo loop integrators |
| Wide supply range | Operates from ±3 V to ±20 V - eliminates need for separate rail generators in mixed-voltage systems (e.g., ±5 V logic + ±15 V analog) |
| Output short-circuit protection | Withstands indefinite output-to-rail shorts - ensures reliability in test fixtures, relay drivers, and fault-prone sensor interfaces |
Applications
| Audio Preamplifiers | Servo Error Amplifiers |
|---|---|
Use Scenario: Low-noise amplification of dynamic microphone outputs before ADC sampling in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input, configured as noninverting amplifier with gain = 100. Use Value: 3.5 nV/√Hz input noise ensures >110 dB SNR at 1 V output, preserving subtle harmonic detail in vocal recordings. |
Use Scenario: Closed-loop position correction in CNC machine tool motor controllers using analog feedback from resolvers. IC Role / Device Role / Timing Role: High-slew-rate error amplifier comparing commanded vs. actual position voltage, driving PWM modulator input. Use Value: 13 V/μs slew rate enables <1 μs response to step errors, maintaining tight positional tolerance during rapid axis acceleration. |
| Medical Instrumentation | Telephone Channel Amplifiers |
Use Scenario: Biopotential signal conditioning in ECG front-ends, amplifying microvolt-level cardiac waveforms amid 50/60 Hz mains interference. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with guarded inputs and active filtering. Use Value: 100 dB CMRR rejects common-mode noise from patient cables, while ±13 V input range accommodates electrode offset voltages. |
Use Scenario: Line-driver stage in VoIP gateway analog interface cards, boosting transmit signal to meet -10 dBm PSTN line level requirements. IC Role / Device Role / Timing Role: Unity-gain buffer with 32 VPP output swing into 600 Ω hybrid transformer. Use Value: Full ±14 V swing at ±18 V supplies meets ITU-T G.711 linearity and THD specs without clipping on voice peaks. |
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 only; slightly higher input noise (4 nV/√Hz typ) and lower CMRR (90 dB min) | Limited to commercial-temperature consumer audio and bench test equipment | Select NE5534DR only when ambient temperature stays within 0–70°C and cost sensitivity outweighs extended temp or noise performance |
| OPA1611AIDR | Lower noise (1.1 nV/√Hz), rail-to-rail output, but narrower supply range (±2.25 V to ±18 V); no external compensation pins | Preferred for ultra-low-noise battery-powered audio, but lacks flexibility for custom stability tuning in high-gain industrial loops | Choose OPA1611AIDR when ultimate noise floor matters most and fixed internal compensation suffices; avoid where COMP/BAL tuning is required |
Compared with NE5534DR and OPA1611AIDR, SA5534DR uniquely balances extended temperature operation, external compensation control, and proven 3.5-nV/√Hz noise-making it the preferred choice for industrial audio, medical, and servo systems demanding both robustness and design flexibility.
Availability
SA5534DR is available at Aetrix Electronics and suitable for audio preamplifiers, servo error amplifiers, and medical instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for SA5534DR 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 over 50 years of op-amp innovation and broad industrial qualification expertise.
The SA5534DR belongs to TI's legacy precision op-amp family designed for high-reliability analog signal chains in automotive, industrial, and medical applications where low noise, wide temperature range, and long-term parametric stability are essential.
FAQ
What is the operating temperature range of the SA5534DR?
The SA5534DR is specified for operation from –40°C to +85°C, making it suitable for industrial control cabinets, automotive under-dash modules, and medical devices deployed in uncontrolled ambient environments. This extended range distinguishes it from the NE5534DR (0°C to +70°C) and confirms its qualification for harsher thermal conditions without derating.
Does the SA5534DR require external compensation capacitors?
The SA5534DR is internally compensated for gains ≥3, so external compensation is optional-not mandatory. However, connecting a capacitor (e.g., 22 pF) between COMP (Pin 5) and COMP/BAL (Pin 8) allows intentional bandwidth reduction to improve phase margin in high-gain or capacitive-load applications. No capacitor is needed for basic unity-gain follower use.
How is offset voltage adjusted on the SA5534DR?
Offset voltage is trimmed using a 10-kΩ potentiometer connected between VCC+ and VCC−, with its wiper tied to BALANCE (Pin 1) and its ends to VCC+ and VCC−. Adjusting the potentiometer changes the internal current mirror balance, reducing input offset voltage to typically <1 mV. COMP/BAL (Pin 8) remains unconnected during nulling unless used for compensation.
Can the SA5534DR drive a 600-Ω load effectively?
Yes-the SA5534DR delivers up to 32 VPP output swing into a 600-Ω load at ±18 V supplies, meeting professional audio line-driving standards. Its high output current capability (±38 mA short-circuit current) and low output impedance (0.3 Ω typ) ensure minimal signal loss and distortion even under heavy loading, unlike many general-purpose op-amps that degrade significantly below 2 kΩ.
Is the SA5534DR pin-compatible with other 5534-series op-amps?
Yes-the SA5534DR uses the same SOIC-8 (D) package and identical pinout as NE5534DR, SA5534ADR, and NE5534ADR. All share identical pin numbering, terminal functions, and PCB footprint, enabling direct substitution in existing layouts when upgrading from commercial to extended-temperature grade or vice versa.
SA5534DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
SA5534DR FAQ
1.How can I place an order for SA5534DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5534DR 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 SA5534DR reliable?
The price and inventory of SA5534DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5534DR is usually 5 days.
3.What payment methods are accepted for SA5534DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5534DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5534DR?
SA5534DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5534DR 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 SA5534DR?
For technical support, including SA5534DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5534DR requirements.
6.How does Aetrix verify that SA5534DR is sourced from the original manufacturer or authorized distributors?
All SA5534DR 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 SA5534DR meets industry standards.
7.What is the process for return or replacement of SA5534DR?
All SA5534DR units undergo pre-shipment inspection (PSI). If there is an issue with SA5534DR, 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 SA5534DR part is unused and in its original packaging.
Return procedure for SA5534DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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