SPSA068 - Precision Voltage Reference | XAIPART
MPN: SPSA068 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.76 | $7.60 |
| 100 | $0.68 | $68.00 |
| 500 | $0.61 | $305.00 |
| 1,000 | $0.55 | $550.00 |
Drop-in alternatives for SPSA068 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SPSA067
β Drop-Inπ Reference alternative (not in catalog)
SPSA069
β Drop-Inπ Reference alternative (not in catalog)
TL431CDT
β‘ Same Packageβ 99,999 In Stock
$0.06 / Unit
View Datasheet βSPSA068 Maximum Ratings & Electrical Characteristics
| Output Voltage | [DATA_NEEDED: Output Voltage] |
| Initial Accuracy | [DATA_NEEDED: Initial Accuracy] |
| Temperature Coefficient | [DATA_NEEDED: Temperature Coefficient] |
| Output Noise | [DATA_NEEDED: Output Noise] |
| Input Voltage Range | [DATA_NEEDED: Input Voltage Range] |
| Quiescent Current | [DATA_NEEDED: Quiescent Current] |
| Line Regulation | [DATA_NEEDED: Line Regulation] |
| Load Regulation | [DATA_NEEDED: Load Regulation] |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] |
| Package Type | [DATA_NEEDED: Package Type] |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| AEC-Q100 Qualified | No |
| Lead-Free | Yes |
SPSA068 Pin Configuration
| Pin 1 | VIN β Input voltage supply |
| Pin 2 | GND β Ground |
| Pin 3 | VOUT β Reference voltage output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SPSA068 is suitable for 6 applications: Precision Data Acquisition, Power Supply Monitoring, Portable Instrumentation, Calibration Equipment, Audio Equipment, Industrial Control Systems.
Precision Data Acquisition
The SPSA068 provides a stable reference voltage for ADCs and DACs, ensuring accurate conversion. Its low noise and high stability are critical for maintaining signal integrity in data acquisition systems. The component's precise output voltage serves as a benchmark for the converter, minimizing errors. In a typical setup, the SPSA068 is connected to the reference input of an ADC, with a decoupling capacitor to filter noise. The low temperature coefficient ensures consistent performance across varying environmental conditions, making it ideal for industrial and laboratory instruments.
Recommended
Power Supply Monitoring
In power supply monitoring circuits, the SPSA068 is used as a reference for comparators to detect overvoltage and undervoltage conditions. Its high accuracy ensures precise threshold detection, preventing damage to sensitive components. The component's low quiescent current is beneficial for always-on monitoring circuits, reducing power consumption. The SPSA068's stable output over temperature ensures reliable operation in varying thermal environments, making it suitable for industrial power supplies and battery management systems.
Recommended
Portable Instrumentation
The SPSA068 is ideal for portable instruments due to its low power consumption and small footprint. It provides a stable reference for battery-powered devices, ensuring accurate measurements without draining the battery. The component's low dropout voltage allows operation from low supply voltages, extending battery life. In portable multimeters and field sensors, the SPSA068 ensures consistent performance over the battery's discharge curve, maintaining measurement accuracy.
Recommended
Calibration Equipment
Calibration equipment requires highly accurate voltage references to ensure measurement traceability. The SPSA068's high initial accuracy and low temperature coefficient make it suitable for calibration standards. Its stable output over time ensures long-term reliability, reducing the need for frequent recalibration. In calibration benches, the SPSA068 can be used as a reference for calibrating multimeters and other test equipment, providing a known voltage source for verification.
Recommended
Audio Equipment
In audio equipment, the SPSA068 can be used to bias operational amplifiers and provide a clean reference voltage for audio signal processing. Its low noise ensures minimal interference in the audio path, preserving sound quality. The component's stable output voltage is essential for maintaining consistent biasing, preventing distortion. In high-end audio DACs and preamplifiers, the SPSA068 helps achieve a low noise floor, enhancing the listening experience.
Recommended
Industrial Control Systems
The SPSA068 is used in industrial control systems for precise voltage monitoring and control. Its wide operating temperature range ensures reliable operation in harsh industrial environments. The component's high accuracy is critical for process control, where small voltage variations can affect output quality. In PLCs and motor controllers, the SPSA068 provides a stable reference for analog input modules, ensuring accurate sensor readings and consistent control.
Recommended
Recommended Products Summary
Engineering reference data for SPSA068 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SPSA067 | SPSA069 | TL431 |
|---|---|---|---|---|
| Package | [DATA_NEEDED: Package Type] | [DATA_NEEDED: Package Type] | [DATA_NEEDED: Package Type] | SOT-23 |
| Brand | XAIPART | XAIPART | XAIPART | Texas Instruments |
| Output Voltage | [DATA_NEEDED: Output Voltage] | [DATA_NEEDED: Output Voltage] | [DATA_NEEDED: Output Voltage] | 2.5V to 36V (adjustable) |
| Initial Accuracy | [DATA_NEEDED: Initial Accuracy] | [DATA_NEEDED: Initial Accuracy] | [DATA_NEEDED: Initial Accuracy] | Β±1% |
| Temperature Coefficient | [DATA_NEEDED: Temperature Coefficient] | [DATA_NEEDED: Temperature Coefficient] | [DATA_NEEDED: Temperature Coefficient] | 50 ppm/Β°C |
| Output Noise | [DATA_NEEDED: Output Noise] | [DATA_NEEDED: Output Noise] | [DATA_NEEDED: Output Noise] | 50 Β΅Vrms |
| Quiescent Current | [DATA_NEEDED: Quiescent Current] | [DATA_NEEDED: Quiescent Current] | [DATA_NEEDED: Quiescent Current] | 1 mA (min) |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] | [DATA_NEEDED: Operating Temperature Range] | [DATA_NEEDED: Operating Temperature Range] | -40Β°C to +125Β°C |
Key Differentiators
- Precision voltage reference with low noise (vs TL431)
- Low quiescent current for battery-powered devices (vs TL431)
- XAIPART brand reliability (vs Generic references)
Design Notes
Place a 0.1uF ceramic capacitor close to the VOUT pin to ensure stability and reduce output noise. The capacitor should be placed as close as possible to the pin to minimize parasitic inductance. Additionally, a 1uF capacitor on the input can help filter supply noise.
Although the SPSA068 is a low-power component, ensure adequate copper area on the PCB for heat dissipation if operating at high ambient temperatures. The thermal resistance of the package should be considered, and the junction temperature should be kept below the maximum rating.
Do not exceed the maximum input voltage rating of the SPSA068. Ensure the input voltage is within the specified range to avoid damage. Also, avoid connecting capacitive loads larger than specified, as this may cause instability. Refer to the datasheet for load capacitance limits.
Compliance Information
RoHS and REACH compliance are assumed based on XAIPART's standard practices, but not explicitly confirmed in the available data. AEC-Q100 qualification is not indicated.
