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零件编号 | ADR380 | ||
描述 | SOT-23 Voltage Reference | ||
制造商 | Analog Devices | ||
LOGO | |||
1 Page
Precision Low Drift 2.048 V/2.500 V
SOT-23 Voltage Reference
ADR380/ADR381
FEATURES
Initial accuracy: ±5 mV/±6 mV maximum
Initial accuracy error: ±0.24%/±0.24%
Low TCVOUT: 25 ppm/°C maximum
Load regulation: 70 ppm/mA
Line regulation: 25 ppm/V
Wide operating ranges
2.4 V to 18 V for ADR380
2.8 V to 18 V for ADR381
Low power: 120 μA maximum
High output current: 5 mA
Wide temperature range: −40°C to +85°C
Tiny 3-lead SOT-23 package with standard pinout
APPLICATIONS
Battery-powered instrumentation
Portable medical instruments
Data acquisition systems
Industrial process control systems
Hard disk drives
Automotive
GENERAL DESCRIPTION
The ADR380 and ADR381 are precision 2.048 V and 2.500 V
band gap voltage references featuring high accuracy, high
stability, and low power consumption in a tiny footprint.
Patented temperature drift curvature correction techniques
minimize nonlinearity of the voltage change with temperature.
The wide operating range and low power consumption make
them ideal for 3 V to 5 V battery-powered applications.
The ADR380 and ADR381 are micropower, low dropout
voltage (LDV) devices that provide a stable output voltage from
supplies as low as 300 mV above the output voltage. They are
specified over the industrial (−40°C to +85°C) temperature
range. The ADR380/ADR381 are available in the tiny 3-lead
SOT-23 package.
PIN CONFIGURATION
VIN 1 ADR380/
ADR381
3 GND
TOP VIEW
VOUT 2 (Not to Scale)
Figure 1. 3-Lead SOT-23
(RT Suffix)
Table 1. ADR38x Products
Part Number
Nominal Output Voltage (V)
ADR380
2.048
ADR381
2.500
Rev. C
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
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2001–2010 Analog Devices, Inc. All rights reserved.
ADR380/ADR381
60
TEMPERATURE +25°C –40°C +85°C +25°C
50
40
30
20
10
0
–260 –200 –140 –80 –20 40 100 160 220 280 340 400
HYSTERESIS (ppm)
Figure 14. ADR381 VOUT Hysteresis
2µV/DIV
1
TIME (1s/DIV)
Figure 15. ADR381 Typical Noise Voltage, 0.1 Hz to 10 Hz
100µV/DIV
1
TIME (10ms/DIV)
Figure 16. ADR381 Typical Noise Voltage, 10 Hz to 10 kHz
CBYPASS = 0µF
VOUT
2 1V/DIV
LINE INTERRUPTION
1 0.5V/DIV
VIN
0.5V/DIV
TIME (10µs/DIV)
Figure 17. ADR381 Line Transient Response
CBYPASS = 0.1µF
VOUT
2 1V/DIV
0.5V/DIV
1
LINE INTERRUPTION
0.5V/DIV
TIME (10µs/DIV)
Figure 18. ADR381 Line Transient Response
2
LOAD OFF
1
CL = 0µF
VOUT
1V/DIV
VLOAD ON
ILOAD = 1mA
2V/DIV
TIME (200µs/DIV)
Figure 19. ADR381 Load Transient Response with CL = 0 μF
Rev. C | Page 8 of 16
ADR380/ADR381
NOTES
©2001–2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D02175-0-10/10(C)
Rev. C | Page 16 of 16
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页数 | 16 页 | ||
下载 | [ ADR380.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
ADR380 | SOT-23 Voltage Reference | Analog Devices |
ADR381 | SOT-23 Voltage Reference | Analog Devices |
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