Analog Devices Inc. ADR130BUJZ-R2

Overview

ADR130BUJZ-R2 from Analog Devices is a precision sub-band gap voltage reference IC delivering 1.0 V output with ±0.35% initial accuracy (B grade), 25 ppm/°C max temperature coefficient, and 6 µV_p-p (0.1–10 Hz) output noise. It operates from 2.0 V to 18 V input, supplies ±2 mA load current, and draws only 80 µA typical quiescent current - ideal for low-power, high-accuracy analog signal conditioning in portable medical sensors.

For engineers reviewing the ADR130BUJZ-R2 datasheet, ADR130BUJZ-R2 pinout, ADR130BUJZ-R2 application, or ADR130BUJZ-R2 equivalent, key selection criteria include guaranteed 25 ppm/°C drift over −40°C to +125°C, TSOT-6 package compatibility with space-constrained PCBs, dual-output configuration flexibility (0.5 V or 1.0 V), and verified long-term stability of 100 ppm/1000 hours at 25°C.

Technical Context

The ADR130BUJZ-R2 implements a proprietary curvature-corrected sub-band gap architecture that minimizes nonlinearities in output voltage vs. temperature, enabling 25 ppm/°C max TCVO across −40°C to +125°C. Its SET pin (Pin 5) configures output: tied to GND yields 1.0 V, while tied to VOUT yields 0.5 V - no external resistors required.

It features internal thermal hysteresis compensation (150 ppm), supports 0.1 µF–1 µF output capacitance for stability and transient response, and maintains load regulation within ±0.25 mV/mA (source) and ±2.0 mV/mA (sink) across full temperature range - critical for precision ADC biasing and sensor excitation circuits.

Key Specifications

Pinout & Package

ADR130BUJZ-R2 is housed in a 6-lead TSOT (UJ-6) package: 2.90 mm × 1.60 mm × 0.95 mm, Pb-free, RoHS-compliant, with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Compared with ADR3410ARJZ-R7 and REF3310AIDBZR, the ADR130BUJZ-R2 uniquely balances 25 ppm/°C drift, 80 µA IQ, −40°C to +125°C rating, and 2.0 V minimum input - making it the only option qualified for battery-powered medical devices requiring both micropower and full industrial temperature performance.

Availability

ADR130BUJZ-R2 is available at Aetrix Electronics and suitable for portable medical equipment, battery-powered instrumentation, and communication infrastructure equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADR130BUJZ-R2 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADR130 series was designed specifically for micropower, high-accuracy voltage referencing in space- and energy-constrained applications - emphasizing sub-100 µA operation, TSOT-6 footprint, and guaranteed performance from −40°C to +125°C.

FAQ

What output voltage does ADR130BUJZ-R2 deliver, and how is it configured?

The ADR130BUJZ-R2 delivers a precise 1.0 V output when its SET pin (Pin 5) is connected to GND (Pin 2), as specified for the B-grade device. This configuration is fixed per the ordering code BUJZ and does not require external resistors or trimming. The same die can produce 0.5 V if SET is tied to VOUT, but ADR130BUJZ-R2 is factory-configured and tested for 1.0 V operation with ±0.35% initial accuracy and 25 ppm/°C max temperature coefficient.

Does ADR130BUJZ-R2 require an output capacitor, and what value is recommended?

Yes, ADR130BUJZ-R2 requires a minimum 0.1 µF ceramic output capacitor connected between VOUT and GND for guaranteed stability across all operating conditions, including full temperature range and load current extremes. Adding parallel capacitance up to 1 µF improves load transient response but increases turn-on settling time; the base 0.1 µF value ensures 80 µs settling to 0.1% without compromising stability - a key requirement for fast-sampling data acquisition systems using ADR130BUJZ-R2.

What is the maximum load current ADR130BUJZ-R2 can source and sink?

The ADR130BUJZ-R2 is specified to source up to +4 mA and sink up to −2 mA while maintaining output accuracy within datasheet limits. Load regulation remains within ±0.25 mV/mA (source) and ±2.0 mV/mA (sink) across −40°C to +125°C. This capability allows direct driving of op-amp inputs, ADC reference inputs, and low-power comparators without buffer amplifiers - simplifying layout and reducing bill-of-materials cost in compact ADR130BUJZ-R2-based designs.

How does the temperature coefficient of ADR130BUJZ-R2 compare to standard bandgap references?

The ADR130BUJZ-R2 achieves a maximum temperature coefficient of 25 ppm/°C over −40°C to +125°C - significantly better than conventional bandgap references (typically 50–100 ppm/°C) and competitive with higher-cost buried-zener solutions. This performance results from Analog Devices' proprietary curvature-correction technique, which actively compensates for second-order nonlinearities in the sub-band gap core. For example, at 1.0 V output, this translates to just ±300 µV total drift across the full range - critical for maintaining accuracy in unregulated, thermally variable environments where ADR130BUJZ-R2 is deployed.

Is ADR130BUJZ-R2 suitable for use in medical devices requiring long-term calibration stability?

Yes, ADR130BUJZ-R2 demonstrates 100 ppm/1000 hours long-term stability at 25°C - a key metric for medical devices where recalibration intervals must exceed product lifetime. Combined with its 150 ppm output voltage hysteresis and guaranteed 25 ppm/°C temperature coefficient, this stability ensures that systems using ADR130BUJZ-R2 (e.g., portable ECG monitors or infusion pump sensors) maintain clinical-grade accuracy without field service. The TSOT-6 package's robust construction and Analog Devices' AEC-Q200-aligned manufacturing further support reliability-critical ADR130BUJZ-R2 deployments.