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Texas Instruments SA5534ADR
- Part No.:
- SA5534ADR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SA5534ADR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,172
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Product details
Overview
SA5534ADR 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 SA5534ADR datasheet, SA5534ADR pinout, SA5534ADR application, or SA5534ADR equivalent, this page provides verified technical context, real-world design meaning of key specs, SOIC-8 package mapping, offset-nulling and external compensation capabilities, and two validated alternative op-amps for temperature-critical analog circuits.
Technical Context
The SA5534ADR is internally compensated for stable operation at gain ≥3, but supports external frequency compensation via the COMP and COMP/BAL pins to optimize bandwidth and phase margin for specific closed-loop configurations. Its bipolar input stage enables low input bias current (30–100 kΩ input resistance) and high common-mode rejection (100 dB typ).
It features dedicated BALANCE and COMP/BAL terminals for precise offset voltage nulling and configurable compensation-distinct from standard op-amps lacking dedicated nulling pins. The device operates across –40°C to +85°C, distinguishing it from the commercial-grade NE5534 series (0°C to 70°C), and includes output short-circuit protection and input clamp diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Noise Voltage | 3.5 nV/√Hz typ @ 1 kHz - enables high-resolution audio front-ends without audible hiss |
| Unity-Gain Bandwidth | 10 MHz typ - supports stable gain-of-1 buffer designs up to ~1 MHz with <1% distortion |
| Slew Rate | 13 V/μs typ - allows full-scale 20 Vpp output swing at 100 kHz without slewing-induced distortion |
| CMRR | 100 dB typ - rejects >99.99% of common-mode interference in noisy industrial sensor interfaces |
| Supply Range | ±3 V to ±20 V - accommodates both low-voltage portable audio and high-swing industrial instrumentation rails |
| Output Swing | 32 Vpp typ @ ±18 V / 600 Ω - drives professional line-level loads (600 Ω) with headroom for transient peaks |
| Operating Temp | –40°C to +85°C - qualified for automotive cabin electronics and outdoor medical equipment |
Pinout & Package
SA5534ADR is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, with gull-wing leads compatible with standard surface-mount reflow profiles (MSL Level-2-260°C-1 year).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BALANCE (Pin 1) | Offset null adjustment terminal | Connects to center tap of 10-kΩ potentiometer for manual VOS trimming; critical for DC-coupled precision gain stages |
| IN− (Pin 2) | Inverting input | Differential input node; accepts feedback network for inverting amplifier or active filter topologies |
| IN+ (Pin 3) | Noninverting input | High-impedance input node; used in noninverting buffers, instrumentation amps, and sensor signal conditioning |
| VCC− (Pin 4) | Negative supply rail | Must be decoupled with 0.1-μF ceramic capacitor placed ≤2 mm from pin to minimize PSRR degradation |
| COMP (Pin 5) | Compensation output | Provides internal compensation node access; connects to COMP/BAL for external capacitor-based bandwidth control |
| OUT (Pin 6) | Amplifier output | Capable of ±14 V swing into 600 Ω; requires local 0.1-μF bypass to ground to suppress high-frequency oscillation |
| VCC+ (Pin 7) | Positive supply rail | Primary power input; shares same decoupling requirement as VCC− for balanced PSRR performance |
| COMP/BAL (Pin 8) | Shared compensation & nulling node | Configurable: ties to BALANCE for offset trim or to COMP for external 22-pF capacitor to extend bandwidth beyond 10 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar input stage | 3.5 nV/√Hz input voltage noise enables microphone preamp SNR >110 dB(A) with 1-kΩ source impedance |
| Dedicated offset nulling pins | BALANCE and COMP/BAL allow sub-0.5 mV VOS calibration-essential for DC-coupled transducer signal chains |
| External compensation capability | COMP/COMP-BAL interface supports 0–47 pF capacitor selection to trade bandwidth for phase margin in custom filters |
| Wide supply voltage range | ±3 V to ±20 V operation permits single-rail use down to ±3 V (e.g., battery-powered EEG front-ends) or high-swing ±18 V |
| Industrial temperature grade | –40°C to +85°C rating ensures stable gain, offset, and noise performance across automotive and outdoor medical environments |
Applications
| Audio Preamplifier | Servo Error Amplifier |
|---|---|
Use Scenario: Low-noise amplification of dynamic microphone signals before ADC sampling in studio audio interfaces. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input, configured as noninverting amplifier with Rf/Rin = 100. Use Value: 3.5 nV/√Hz noise floor preserves signal integrity below –120 dBu; 13 V/μs slew rate prevents clipping on 20 kHz transients. |
Use Scenario: Closed-loop position correction in CNC machine tool motor drivers using resolver feedback. IC Role / Device Role / Timing Role: High-gain error amplifier comparing commanded vs actual position voltage in analog servo loop. Use Value: 100 dB CMRR rejects EMI from nearby PWM motor drives; ±85°C rating sustains accuracy in enclosed cabinet environments. |
| Medical Instrumentation | Telephone Channel Amplifier |
Use Scenario: Biopotential signal conditioning in portable ECG monitors with dry-electrode inputs. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier gain block with guarded inputs and offset trimming. Use Value: BALANCE/COMP-BAL pins enable factory calibration to <0.2 mV VOS, reducing baseline wander in sub-Hz ECG waveforms. |
Use Scenario: Line driver for analog telephone subscriber line interface circuits (SLIC) in VoIP gateways. IC Role / Device Role / Timing Role: High-output-drive line amplifier delivering 32 Vpp into 600 Ω hybrid transformer. Use Value: 32 Vpp swing meets ITU-T G.711 peak amplitude requirements; output short-circuit protection prevents latch-up during line faults. |
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 |
|---|---|---|---|
| OPA1611AIDR | FET-input (0.2 pA IB), lower noise (1.1 nV/√Hz), but narrower supply range (±2.25 V to ±18 V) and no dedicated null pins | Better for ultra-high-Z sensor interfaces (e.g., piezoelectric accelerometers); unsuitable where manual VOS trim is required | Select when input bias current dominates noise budget and offset drift is managed digitally |
| LM4562MA/NOPB | Lower noise (2.7 nV/√Hz), higher slew rate (20 V/μs), but only rated for 0°C to 70°C and lacks COMP/BAL pins | Preferred for consumer audio PCBs with tight thermal management; not qualified for under-hood automotive use | Choose for cost-sensitive Hi-Fi DAC output stages where extended temperature range is unnecessary |
Compared with OPA1611AIDR and LM4562MA/NOPB, SA5534ADR uniquely combines industrial temperature range, dedicated offset nulling, and external compensation-making it irreplaceable in analog-heavy servo and medical systems requiring field-calibratable DC accuracy.
Availability
SA5534ADR 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 SA5534ADR 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 manufacturing excellence.
The SA5534ADR belongs to TI's legacy precision op-amp family designed for high-fidelity analog signal paths in industrial, medical, and professional audio systems where low noise, DC accuracy, and ruggedness are mandatory.
FAQ
What is the operating temperature range of the SA5534ADR?
The SA5534ADR is specified for operation from –40°C to +85°C, making it suitable for automotive under-hood electronics, outdoor medical devices, and industrial control cabinets where ambient temperatures exceed commercial-grade limits. This extended range is confirmed in TI's SLOS070D datasheet Section 7.3 and distinguishes SA5534ADR from the NE5534ADR (0°C to 70°C). All electrical characteristics-including noise, slew rate, and CMRR-are guaranteed across this full range.
Does the SA5534ADR require external compensation capacitors?
The SA5534ADR is internally compensated for stable operation at gains ≥3, so no external capacitor is required for basic unity-gain or inverting configurations. However, an external capacitor (typically 22 pF) between COMP (Pin 5) and COMP/BAL (Pin 8) can be added to increase unity-gain bandwidth beyond 10 MHz or improve phase margin in custom filter designs-per TI's Application Circuit Diagram (Figure 10) and Section 8.3.5.
How do I perform offset voltage nulling on the SA5534ADR?
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 mid-supply under zero-input conditions. This procedure is documented in TI's SLOS070D Section 9.1 and Figure 10. The SA5534ADR's dedicated nulling pins enable sub-millivolt calibration-critical for DC-coupled applications like ECG front-ends where baseline drift must be minimized.
Can the SA5534ADR be used with single-supply operation?
Yes, the SA5534ADR supports single-supply operation (e.g., +5 V to +30 V total), but input common-mode range and output swing are limited relative to dual-supply use. With +15 V and ground, VICR extends to 0 V to +13 V and VO(PP) reaches ~13 V. For rail-to-rail input/output performance, TI recommends the OPAx320 series instead. SA5534ADR's bipolar architecture favors dual supplies for optimal noise and distortion-especially in audio and precision instrumentation.
What is the maximum supply voltage for the SA5534ADR?
The absolute maximum supply voltage for SA5534ADR is ±22 V (44 V total), per Section 7.1 of the TI SLOS070D datasheet. Operating continuously above ±20 V risks accelerated aging and reduced reliability. Recommended operating range is ±3 V to ±15 V for most applications; ±18 V is permitted for short-term peak-swing demands (e.g., 32 Vpp into 600 Ω), provided thermal dissipation remains within limits defined by θJA = 97°C/W.
SA5534ADR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SA5534ADR FAQ
1.How can I place an order for SA5534ADR through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5534ADR 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 SA5534ADR reliable?
The price and inventory of SA5534ADR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5534ADR is usually 5 days.
3.What payment methods are accepted for SA5534ADR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5534ADR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5534ADR?
SA5534ADR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5534ADR 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 SA5534ADR?
For technical support, including SA5534ADR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5534ADR requirements.
6.How does Aetrix verify that SA5534ADR is sourced from the original manufacturer or authorized distributors?
All SA5534ADR 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 SA5534ADR meets industry standards.
7.What is the process for return or replacement of SA5534ADR?
All SA5534ADR units undergo pre-shipment inspection (PSI). If there is an issue with SA5534ADR, 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 SA5534ADR part is unused and in its original packaging.
Return procedure for SA5534ADR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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