ADR445
PRODUCTIONUltralow Noise, LDO XFET® 5.0V Voltage Reference w/Current Sink and Source
- Part Models
- 6
- 1ku List Price
- Starting From $3.27
Part Details
- Ultralow noise (0.1 Hz to 10 Hz)
- ADR440: 1 μV p-p
- ADR441: 1.2 μV p-p
- ADR443: 1.4 μV p-p
- ADR444: 1.8 μV p-p
- ADR445: 2.25 μV p-p
- Superb temperature coefficient
- A Grade: 10 ppm/°C
- B Grade: 3 ppm/°C
- Low dropout operation (supply voltage headroom): 500 mV
- Input range: (VOUT + 500 mV) to 18 V
- High output source and sink current
- +10 mA and −5 mA, respectively
- Wide temperature range: −40°C to +125°C
The ADR440/ADR441/ADR443/ADR444/ADR445 series is a family of XFET® voltage references featuring ultralow noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR440/ADR441/ADR443/ADR444/ADR445 is greatly minimized.
The XFET references offer better noise performance than buried Zener references, and XFET references operate off low supply voltage headroom (500 mV). This combination of features makes the ADR440/ADR441/ADR443/ADR444/ADR445 family ideally suited for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical applications.
The ADR440/ADR441/ADR443/ADR444/ADR445 family has the capability to source up to 10 mA of output current and sink up to −5 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.
The ADR440/ADR441/ADR443/ADR444/ADR445 family is available in 8-lead MSOP and narrow SOIC packages and offered in two electrical grades. All versions are specified over the extended industrial temperature range of −40°C to +125°C.
Applications
- Precision data acquisition systems
- High resolution data converters
- Battery-powered instrumentation
- Portable medical instruments
- Industrial process control systems
- Precision instruments
- Optical control circuits
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Technical Articles 3
Frequently Asked Question 1
Circuit Note 4
Analog Dialogue 2
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 |
|---|---|---|---|
| ADR445ARMZ | 8-Lead MSOP | ||
| ADR445ARMZ-REEL7 | 8-Lead MSOP | ||
| ADR445ARZ | 8-Lead SOIC | ||
| ADR445ARZ-REEL7 | 8-Lead SOIC | ||
| ADR445BRZ | 8-Lead SOIC | ||
| ADR445BRZ-REEL7 | 8-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products |
||
| ADR445ARMZ | PRODUCTION | |
| ADR445ARMZ-REEL7 | PRODUCTION | |
|
Nov 23, 2010 - 10_0004 Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor |
||
| ADR445ARZ | PRODUCTION | |
| ADR445ARZ-REEL7 | PRODUCTION | |
| ADR445BRZ | PRODUCTION | |
| ADR445BRZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Reference Designs
24-Bit, 250 kSPS Single-Supply Data Acquisition System
Part Used
Design & Integration Tools
18-Bit, Linear, Low Noise, Precision Bipolar ±10 V DC Voltage Source
Part Used
Resources
Design & Integration Tools
18-Bit, Linear, Low Noise, Precision Bipolar ±10 V DC Voltage Source