REF5025AQDRQ1
| Parameters | |
|---|---|
| Series | Automotive, AEC-Q100 |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Current - Supply | 1.2mA |
| Output Type | Fixed |
| Voltage - Input | 2.7V ~ 18V |
| Tolerance | ±0.1% |
| Temperature Coefficient | 8ppm/°C |
| Current - Output | 10 mA |
| Supplier Device Package | 8-SOIC |
| Reference Type | Series |
| Voltage - Output (Min/Fixed) | 2.5V |
| Noise - 0.1Hz to 10Hz | 7.5µVpp/V |
| Noise - 10Hz to 10kHz | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | REF5025 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
REF5025AQDRQ1 Series Voltage Reference IC Fixed 2.5V V ±0.1% 10 mA 8-SOIC
The REF5025AQDRQ1 is a high-precision, low-noise, very-low-drift 2.5V series voltage reference from Texas Instruments, qualified for automotive applications (AEC-Q100 Grade 1). It is offered in an 8-pin SOIC package and is designed to provide a stable and accurate voltage reference for data converters, precision analog circuits, and measurement systems in harsh environments. Its exceptional temperature stability and low noise make it a key component in designs requiring long-term accuracy and reliability.
This voltage reference is engineered for precision analog systems where stability and accuracy are paramount. Its primary applications include:
● Automotive Electronics: Used in engine control units (ECUs), battery management systems (BMS), advanced driver-assistance systems (ADAS) sensors, and vehicle infotainment for providing a stable reference to ADCs and DACs.
● Industrial Measurement and Control: Essential for precision data acquisition systems, programmable logic controllers (PLCs), temperature sensors, and process control instrumentation that require high-accuracy signal conditioning.
● Test and Measurement Equipment: Serves as a stable voltage source in benchtop multimeters, oscilloscopes, signal generators, and calibration equipment where measurement integrity is critical.
● Medical Devices: Employed in patient monitoring equipment, portable diagnostic devices, and imaging systems where reliable and accurate analog signal references are necessary.
Frequently Asked Questions (FAQ):
Q1: What is the key advantage of a Series voltage reference (like the REF5025A) compared to a Shunt reference?
A: A series reference acts like a precision, low-dropout regulator, requiring an input voltage higher than its output and consuming a relatively constant supply current. It offers better load regulation and can typically source/sink more current than a shunt reference, which requires an external bias resistor and operates in parallel with the load.
Q2: How does the NR/TRIM pin function on the REF5025AQDRQ1?
A: The NR (Noise Reduction) / TRIM pin serves a dual purpose. Connecting a capacitor to ground reduces output noise. Alternatively, it can be used with a resistor divider network to finely adjust (trim) the output voltage within a small range, compensating for system-level errors.
Compatible Alternative Voltage Reference List
1. REF5025IDGKR: The industrial-grade version of the same 2.5V precision reference from Texas Instruments, with similar specifications but typically rated for a 0°C to 70°C or -40°C to 85°C operating range.
2. MAX6126AASA25+: An ultra-high-precision, low-noise 2.5V voltage reference from Analog Devices with similar low drift and noise specs, available in an 8-pin SOIC package.
3. LT6657AHS8-2.5#PBF: A 2.5V precision series voltage reference from Analog Devices featuring very low noise and drift, packaged in an 8-lead SOIC, suitable for high-accuracy applications.
