ADR391
PRODUCTION2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown
- Part Models
- 3
- 1ku List Price
- Starting From $1.08
Part Details
- Compact 5-lead TSOT package
- Low temperature coefficient
- B grade: 9 ppm/°C
- A grade: 25 ppm/°C
- Initial accuracy
- B grade: ±4 mV maximum (ADR391)
- A grade: ±6 mV maximum
- Ultralow output noise: 5 μV p-p (0.1 Hz to 10 Hz)
- Low dropout: 300 mV
- Low supply current
- 3 μA maximum in shutdown
- 140 μA maximum in operation
- No external capacitor required
- Output current: 5 mA
- Automotive grade available
- Wide temperature range: −40°C to +125°C
The ADR391/ADR392/ADR395 are precision 2.5 V, 4.096 V, and 5 V band gap voltage references, respectively, featuring low power and high precision in a tiny footprint. Using patented temperature drift curvature correction techniques from Analog Devices, Inc., the ADR39x references achieve a low 9 ppm/°C of temperature drift in the TSOT package.
The ADR39x family of micropower, low dropout voltage references provides a stable output voltage from a minimum supply of 300 mV above the output. Their advanced design eliminates the need for external capacitors, which further reduces board space and system cost. The combination of low power operation, small size, and ease of use makes the ADR39x precision voltage references ideally suited for battery-operated applications.
Applications
- Battery-powered instrumentation
- Portable medical instrumentation
- Data acquisition systems
- Industrial process controls
- Automotive
Documentation
Data Sheet 1
Frequently Asked Question 1
Circuit Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADR391AUJZ-R2 | 5-Lead TSOT | ||
| ADR391AUJZ-REEL7 | 5-Lead TSOT | ||
| ADR391BUJZ-REEL7 | 5-Lead TSOT |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 7, 2017 - 17_0079 Qualification of TeamQuest Technology Inc., Philippines as an Alternate Test Site for TC-Vos Testing |
||
| ADR391AUJZ-R2 | ||
| ADR391BUJZ-REEL7 | PRODUCTION | |
|
Jan 26, 2010 - 10_0007 Halogen Free Material Change for TSOT Products |
||
| ADR391AUJZ-REEL7 | PRODUCTION | |
| ADR391BUJZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Positive Linear Regulators (LDO) 1 | ||
| LT3040 | RECOMMENDED FOR NEW DESIGNS | 20V, 200mA, Ultralow Noise, Ultrahigh PSRR Precision DAC/Reference Buffer |
Reference Designs
Galvanically Isolated, 2-Channel, 16-Bit, Simultaneous Sampling, Daisy-Chained Data Acquisition System