Datasheet ADR291W (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Low Noise Micropower Precision Voltage Reference (2.5 V) |
| Pages / Page | 8 / 1 — Low Noise Micropower 2.5 V. Precision Voltage Reference. ADR291W. … |
| File Format / Size | PDF / 128 Kb |
| Document Language | English |
Low Noise Micropower 2.5 V. Precision Voltage Reference. ADR291W. FEATURES. CONNECTION DIAGRAM
Model Line for this Datasheet
Text Version of Document
Low Noise Micropower 2.5 V Precision Voltage Reference ADR291W FEATURES CONNECTION DIAGRAM Qualified for automotive applications NC 1 8 NC Supply range ADR291 VIN 2 7 NC TOP VIEW 2.8 V to 15 V NC 3 6 V (Not to Scale) OUT Supply current: 15 μA maximum GND 4 5 NC
01 0 4-
Low noise: 8 μV (0.1 Hz to 10 Hz)
55
NC = NO CONNECT
08
High output current: 5 mA
Figure 1. 8-Lead SOIC_N (R-8)
Temperature range: −40°C to +125°C Pin compatible with REF02/ REF19x APPLICATIONS Automotive Li-Ion Battery Measurement Analog-to-digital and digital-to-analog converter reference GENERAL DESCRIPTION
The ADR291 is a low noise, micropower precision voltage refer- Line regulation and load regulation are typically 30 ppm/V and ence that uses an XFET® reference circuit. The XFET architecture 30 ppm/mA, maintaining the overall high performance of the offers significant performance improvements over traditional reference. For a device with 5.0 V output, refer to the ADR293 band gap and buried Zener-based references. Improvements data sheet. include one quarter of the voltage noise output of band gap refer- The ADR291 is specified over the automotive temperature ences operating at the same current, very low and ultralinear range of −40°C to +125°C. The device is available in the 8-lead temperature drift, low thermal hysteresis, and excellent long- SOIC package. term stability. The ADR291 is a series voltage reference providing a stable and
Table 1. ADR291 Product Details
accurate output voltage from supplies as low as 2.8 V. The
Temperature Output Coefficient
output voltage is 2.5 V.
Part No. Voltage (V) Accuracy (±%) (ppm/°C) Max
Quiescent current is only 12 μA, making these devices ideal for ADR291 2.500 0.332 15 battery-powered instrumentation. Output accuracy is ±8.3 mV maximum. Temperature coefficient is 15 ppm/°C maximum.
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved.
Document Outline Features Applications Connection Diagram General Description Revision History Specifications Electrical Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Outline Dimensions Ordering Guide
01 0 4-
Low noise: 8 μV (0.1 Hz to 10 Hz)
55
NC = NO CONNECT
08
High output current: 5 mA
Figure 1. 8-Lead SOIC_N (R-8)
Temperature range: −40°C to +125°C Pin compatible with REF02/ REF19x APPLICATIONS Automotive Li-Ion Battery Measurement Analog-to-digital and digital-to-analog converter reference GENERAL DESCRIPTION
The ADR291 is a low noise, micropower precision voltage refer- Line regulation and load regulation are typically 30 ppm/V and ence that uses an XFET® reference circuit. The XFET architecture 30 ppm/mA, maintaining the overall high performance of the offers significant performance improvements over traditional reference. For a device with 5.0 V output, refer to the ADR293 band gap and buried Zener-based references. Improvements data sheet. include one quarter of the voltage noise output of band gap refer- The ADR291 is specified over the automotive temperature ences operating at the same current, very low and ultralinear range of −40°C to +125°C. The device is available in the 8-lead temperature drift, low thermal hysteresis, and excellent long- SOIC package. term stability. The ADR291 is a series voltage reference providing a stable and
Table 1. ADR291 Product Details
accurate output voltage from supplies as low as 2.8 V. The
Temperature Output Coefficient
output voltage is 2.5 V.
Part No. Voltage (V) Accuracy (±%) (ppm/°C) Max
Quiescent current is only 12 μA, making these devices ideal for ADR291 2.500 0.332 15 battery-powered instrumentation. Output accuracy is ±8.3 mV maximum. Temperature coefficient is 15 ppm/°C maximum.
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved.
Document Outline Features Applications Connection Diagram General Description Revision History Specifications Electrical Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Outline Dimensions Ordering Guide
