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Texas Instruments SA5534AP
- Part No.:
- SA5534AP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
SA5534AP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:341
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Product details
Overview
SA5534AP from Texas Instruments is a precision, low-noise operational amplifier in an 8-pin PDIP package, delivering 3.5 nV/√Hz input noise voltage, 10 MHz unity-gain bandwidth, and 13 V/μs slew rate. It operates from ±3 V to ±20 V supplies, supports external offset nulling and frequency compensation, and is rated for industrial temperature range (–40°C to +85°C), making it suitable for high-fidelity audio preamplifiers and medical instrumentation signal conditioning.
For engineers reviewing the SA5534AP datasheet, SA5534AP pinout, SA5534AP application, or SA5534AP equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed industrial-grade operating conditions, and two rigorously cross-checked alternative parts with documented functional and application-level differences.
Technical Context
The SA5534AP is internally compensated for stable operation at gain ≥3, with external compensation capability via COMP and COMP/BAL pins enabling bandwidth and phase-margin tuning for specific load and feedback configurations. Its bipolar input stage delivers low input bias current (typ. 500 nA) and high DC voltage gain (100 V/mV), while the output stage drives 600 Ω loads with ±14 V swing under ±18 V supply.
It features dedicated BALANCE and COMP/BAL pins for precise offset nulling using external potentiometers, and includes input protection diodes and output short-circuit protection. The device is not unity-gain stable without external compensation, distinguishing it from fully compensated op-amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Noise Voltage | 3.5 nV/√Hz typ. - Enables high-resolution audio and sensor signal amplification without adding measurable noise floor. |
| Unity-Gain Bandwidth | 10 MHz typ. - Supports wideband applications like active filters and video buffers up to ~1 MHz closed-loop bandwidth. |
| Slew Rate | 13 V/μs typ. - Allows clean reproduction of fast-rising signals (e.g., 10 V step in <1 μs) without slew-induced distortion. |
| CMRR | 100 dB typ. - Rejects common-mode interference (e.g., 1 V noise on both inputs yields only 10 μV error at output). |
| Supply Range | ±3 V to ±20 V - Compatible with legacy ±15 V rails and modern low-voltage ±5 V systems, with absolute max ±22 V. |
| Operating Temp | –40°C to +85°C - Qualified for industrial environments including medical equipment and telecom infrastructure. |
| Output Swing | 32 VPP typ. at ±18 V - Delivers full dynamic range into 600 Ω loads, critical for line-driving and professional audio stages. |
Pinout & Package
SA5534AP uses an 8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and standard through-hole mounting. Pin spacing is 0.1 inch (2.54 mm), compatible with industry-standard PCB footprints and socketing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BALANCE (Pin 1) | Offset null adjustment input | Connects to one end of external potentiometer for fine-tuning input offset voltage to <1 mV. |
| IN− (Pin 2) | Inverting input | Differential input node; accepts feedback network for inverting amplifier or active filter configurations. |
| IN+ (Pin 3) | Noninverting input | Differential input node; used in noninverting gain stages, voltage followers, and instrumentation front-ends. |
| VCC− (Pin 4) | Negative supply rail | Connects to negative power source; must be ≥ –22 V and ≤ –3 V for valid operation. |
| COMP (Pin 5) | Compensation output | Provides internal compensation node; connects to COMP/BAL for external capacitor-based stability control. |
| OUT (Pin 6) | Amplifier output | Low-impedance output capable of sourcing/sinking >38 mA; drives 600 Ω loads with minimal distortion. |
| VCC+ (Pin 7) | Positive supply rail | Connects to positive power source; must be ≤ +22 V and ≥ +3 V for valid operation. |
| COMP/BAL (Pin 8) | Shared compensation/offset node | Connects to other end of nulling pot or to COMP pin via capacitor (e.g., 22 pF) for bandwidth optimization. |
Key Features
| Feature | Design Value |
|---|---|
| External offset nulling | Enables sub-millivolt DC accuracy in precision transducer interfaces using a single 10-kΩ potentiometer between BALANCE and COMP/BAL. |
| Adjustable frequency compensation | Allows trade-off between bandwidth (up to 10 MHz) and phase margin by selecting capacitor value (e.g., 0–47 pF) between COMP and COMP/BAL. |
| High output drive into 600 Ω | Delivers ±14 V swing at ±18 V supply-meets professional audio line-driver standards (e.g., AES3, EBU) without external buffers. |
| Industrial temperature rating | Specified performance over –40°C to +85°C ensures reliability in medical diagnostics, factory automation, and outdoor telecom gear. |
| Input protection diodes | Clamps input voltages to within ~0.6 V of supply rails, preventing damage from transient overvoltage or miswiring during prototyping. |
Applications
| Audio Preamplifier | Servo Error Amplifier |
|---|---|
Use Scenario: Low-noise amplification of microphone or phono cartridge signals prior to ADC or analog processing. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input and adjustable offset nulling to eliminate audible hum or DC drift. Use Value: 3.5 nV/√Hz noise floor preserves signal integrity in 24-bit audio systems; 13 V/μs slew rate prevents transient intermodulation distortion. | Use Scenario: Closed-loop position/velocity control in CNC machines or robotic actuators using encoder feedback. IC Role / Device Role / Timing Role: High-gain error amplifier comparing reference and feedback signals to drive motor driver ICs. Use Value: 100 dB CMRR rejects power-supply ripple and EMI from adjacent motor drivers; ±14 V swing enables full-scale actuator command range. |
| Medical Instrumentation | Telephone Channel Amplifier |
Use Scenario: Signal conditioning for ECG, EEG, or patient monitor front-ends requiring high common-mode rejection and low noise. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with guard-driven layout and offset trimming. Use Value: –40°C to +85°C rating supports sterilization cycles and portable battery-powered use; input protection diodes prevent ESD damage during handling. | Use Scenario: Line interface circuitry in VoIP gateways or analog telephone adapters amplifying 2-wire to 4-wire hybrid signals. IC Role / Device Role / Timing Role: Gain block in transmit path with adjustable bandwidth to meet ITU-T G.711 spectral mask requirements. Use Value: External compensation allows precise 3.4 kHz bandwidth limiting; 32 VPP swing accommodates legacy POTS line levels (±12 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE5534AP | Same pinout and architecture but commercial temp range (0°C to 70°C); higher typical input noise (4 nV/√Hz vs 3.5 nV/√Hz). | Not qualified for industrial or extended-temperature deployments; unsuitable for medical or automotive-adjacent designs. | Select NE5534AP only for cost-sensitive, room-temperature consumer audio where extended temp range is unnecessary. |
| OPA1611AIDR | Lower noise (1.1 nV/√Hz), rail-to-rail output, but no external compensation or offset null pins; SOIC-8 only. | Lacks BALANCE/COMP/BAL pins-cannot replace SA5534AP in legacy circuits requiring offset trim or custom compensation. | Choose OPA1611AIDR for new designs prioritizing ultra-low noise and simplicity, but avoid where pin-compatible replacement or field calibration is required. |
Compared with NE5534AP and OPA1611AIDR, SA5534AP uniquely combines industrial temperature rating, external offset nulling, and user-adjustable compensation in a through-hole PDIP package-making it irreplaceable in field-serviceable, high-reliability analog signal chains where long-term DC stability and thermal robustness are mandatory.
Availability
SA5534AP 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 long production lifecycles.
Supply support for SA5534AP 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 heritage in precision op-amp design and manufacturing.
The SA5534AP belongs to TI's legacy high-performance op-amp family, engineered specifically for demanding analog signal conditioning in industrial, medical, and professional audio systems where low noise, wide bandwidth, and rugged operation are non-negotiable.
FAQ
What is the maximum supply voltage for SA5534AP?
The SA5534AP has an absolute maximum supply voltage of ±22 V. Operation beyond this risks permanent damage. For reliable long-term use, TI specifies recommended operating conditions of ±3 V to ±20 V. Exceeding ±20 V may degrade parametric performance or accelerate aging, even if within absolute maximum limits. Always include 0.1-μF ceramic bypass capacitors at each supply pin per TI layout guidelines.
Does SA5534AP require external compensation for unity-gain stability?
Yes, SA5534AP is internally compensated for gain ≥3 only. It is not unity-gain stable without external compensation. To achieve stability at lower gains, connect a capacitor (typically 22–47 pF) between COMP (Pin 5) and COMP/BAL (Pin 8). This configuration trades bandwidth for phase margin-e.g., 22 pF yields ~10 MHz unity-gain bandwidth, while 47 pF reduces it to ~6 MHz but improves stability into capacitive loads.
How do I perform offset nulling on SA5534AP?
To null offset voltage on SA5534AP, connect a 10-kΩ potentiometer between BALANCE (Pin 1) and COMP/BAL (Pin 8), with the wiper grounded. Adjust the pot until output voltage equals zero with inputs shorted and supplies applied. This achieves sub-millivolt DC accuracy. Avoid floating the wiper or connecting to VCC±-TI's SLOA045 application note confirms this configuration minimizes thermal drift and noise injection.
Is SA5534AP pin-compatible with NE5534AP?
Yes, SA5534AP and NE5534AP share identical 8-pin PDIP packaging, pinout, and electrical architecture. The only differences are temperature rating (SA5534AP: –40°C to +85°C; NE5534AP: 0°C to +70°C) and typical input noise (SA5534AP: 3.5 nV/√Hz; NE5534AP: 4 nV/√Hz). No PCB changes are needed for substitution-but verify thermal margins and long-term drift specs for your application environment before swapping.
What load impedance can SA5534AP drive while maintaining 32 VPP swing?
SA5534AP delivers 32 VPP (±16 V) peak-to-peak output voltage swing into RL ≥ 600 Ω with ±18 V supplies. Driving lower impedances (e.g., 150 Ω) reduces swing due to output stage current limiting and increased distortion. For 600 Ω loads, THD remains <0.002% at 1 kHz. Always use proper decoupling and ground layout per TI's SLOA089 to preserve this performance in real-world PCBs.
SA5534AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
SA5534AP FAQ
1.How can I place an order for SA5534AP through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5534AP 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 SA5534AP reliable?
The price and inventory of SA5534AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5534AP is usually 5 days.
3.What payment methods are accepted for SA5534AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5534AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5534AP?
SA5534AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5534AP 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 SA5534AP?
For technical support, including SA5534AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5534AP requirements.
6.How does Aetrix verify that SA5534AP is sourced from the original manufacturer or authorized distributors?
All SA5534AP 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 SA5534AP meets industry standards.
7.What is the process for return or replacement of SA5534AP?
All SA5534AP units undergo pre-shipment inspection (PSI). If there is an issue with SA5534AP, 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 SA5534AP part is unused and in its original packaging.
Return procedure for SA5534AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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