ADR441BRZ-REEL7
| Parameters | |
|---|---|
| Product Status | Active |
| Base Product Number | ADR441 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Series | XFET® |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Current - Supply | 3.75mA |
| Output Type | Fixed |
| Voltage - Input | 3V ~ 18V |
| Tolerance | ±0.04% |
| Temperature Coefficient | 3ppm/°C |
| Current - Output | 10 mA |
| Supplier Device Package | 8-SOIC |
| Reference Type | Series |
| Voltage - Output (Min/Fixed) | 2.5V |
| Noise - 0.1Hz to 10Hz | 1.2µVp-p |
| Noise - 10Hz to 10kHz | - |
| Package | Tape & Reel (TR) |
ADR441BRZ-REEL7 Series Voltage Reference IC Fixed 2.5V ±0.04% 10 mA
The ADR441BRZ-REEL7 is an Analog Devices precision series voltage reference from the proprietary XFET family, providing a fixed 2.5V output with ±0.04% initial accuracy and up to 10mA source / -5mA sink current capability. It operates from a 3V to 18V supply with only 500mV of dropout headroom, draws 3.75mA typical supply current, and is specified for the extended industrial temperature range of -40°C to +125°C. The B-grade device features a maximum temperature coefficient of 3ppm/°C and ultralow 0.1Hz-to-10Hz noise of just 1.2µVp-p, making it exceptionally stable for high-resolution data-acquisition and optical-control systems. With line regulation of 20ppm/V, load regulation of 50ppm/mA, a trim terminal allowing ±0.5% output adjustment without performance degradation, and MSL 1 (unlimited) handling.
Highlights
● Fixed 2.5V series voltage reference with ±0.04% initial accuracy (B-grade, ±1mV), eliminating calibration burden in precision systems.
● Ultralow 0.1Hz-to-10Hz noise of 1.2µVp-p, critical for high-resolution ADCs, DACs, and sensitive analog front-ends.
● B-grade maximum temperature coefficient of 3ppm/°C across the full -40°C to +125°C extended industrial range.
● XFET architecture requires only 500mV dropout (input range 3V to 18V), far lower headroom than buried-Zener references.
● Source/sink capability of +10mA / -5mA supports driving multiple loads or bidirectional reference currents.
● Trim pin enables ±0.5% output adjustment without compromising noise or drift performance.
● 3.75mA typical supply current, line regulation 20ppm/V, load regulation 50ppm/mA, Active lifecycle, REACH-unaffected.
FAQ
Q: What is the key advantage of ADR441BRZ-REEL7?
A: It delivers 2.5V with ±0.04% initial accuracy, 1.2µVp-p ultralow noise, and 3ppm/°C B-grade drift in an 8-SOIC, combining XFET stability with 500mV dropout and 10mA drive capability for precision systems.
Q: What usage precautions matter most?
A: Maintain at least 500mV of input-to-output headroom, place a 0.1µF ceramic capacitor close to VIN and VOUT pins, keep input voltage within 3V to 18V, and use the trim pin judiciously within ±0.5% to avoid degrading drift performance.
Alternative Parts
● ADR440BRZ-REEL7 (Analog Devices): The 2.048V member of the same XFET series in 8-SOIC with identical B-grade 3ppm/°C drift and 1µVp-p noise, providing a lower-voltage reference option within the same family.
● ADR443BRZ-REEL7 (Analog Devices): The 3.0V XFET reference in 8-SOIC with matching 1.4µVp-p noise and 3ppm/°C B-grade drift, serving as a drop-in alternative when a 3V reference is required.
● ADR444BRZ-REEL7 (Analog Devices): The 4.096V XFET reference in 8-SOIC with the same architectural benefits (1.8µVp-p noise, 3ppm/°C drift, 10mA source/-5mA sink), ideal for 4.096V-rail ADCs and DACs.
● ADR445BRZ-REEL7 (Analog Devices): The 5.0V XFET reference in 8-SOIC with 2.25µVp-p noise and 3ppm/°C B-grade drift, completing the family as a high-voltage precision reference alternative.
