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ADR510 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADR510은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 ADR510 자료 제공

부품번호 ADR510 기능
기능 1.0 V Precision Low Noise Shunt Voltage Reference
제조업체 Analog Devices
로고 Analog Devices 로고


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ADR510 데이터시트, 핀배열, 회로
FEATURES
Precision 1.000 V Voltage Reference
Ultracompact 3 mm ؋ 3 mm SOT-23 Package
No External Capacitor Required
Low Output Noise: 4 V p-p (0.1 Hz to 10 Hz)
Initial Accuracy: ؎0.35% Max
Temperature Coefficient: 70 ppm/؇C Max
Operating Current Range: 100 A to 10 mA
Output Impedance: 0.3 Max
Temperature Range: –40؇C to +85؇C
APPLICATIONS
Precision Data Acquisition Systems
Battery-Powered Equipment:
Cellular Phone, Notebook Computer, PDA,
and GPS
3 V/5 V, 8-/12-Bit Data Converters
Portable Medical Instruments
Industrial Process Control Systems
Precision Instruments
1.0 V Precision Low Noise
Shunt Voltage Reference
ADR510
PIN CONFIGURATION
3-Lead SOT-23
V+ 1
V2
ADR510
3 TRIM/NC
ADR510
Model
ADR510ART-REEL7
Output
Voltage
(VO)
1.000
Initial
Accuracy
(mV) (%)
3.5 0.35
Temperature
Coefficient
(ppm/؇C)
70
GENERAL DESCRIPTION
Designed for space critical applications, the ADR510 is a low
voltage (1.000 V), precision shunt-mode voltage reference in the
ultracompact (3 mm ϫ 3 mm) SOT-23 package. The ADR510
features low temperature drift (70 ppm/ЊC), high accuracy
(Ϯ0.35%), and ultralow noise (4 V p-p) performance.
The ADR510’s advanced design eliminates the need for an
external capacitor, yet it is stable with any capacitive load. The
minimum operating current increases from a scant 100 A to a
maximum of 10 mA. This low operating current and ease of
use make the ADR510 ideally suited for hand-held battery-
powered applications.
A TRIM terminal is available on the ADR510 to provide adjust-
ment of the output voltage over Ϯ0.5% without affecting the
temperature coefficient of the device. This feature provides
users with the flexibility to trim out any system errors.
IL + IQ
VS
RBIAS
ADR510
IQ
IL
VOUT = 1.0V
COUT
(OPTIONAL)
VS – VOUT
RBIAS = IL + IQ
Figure 1. Typical Operating Circuit
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 rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.




ADR510 pdf, 반도체, 판매, 대치품
ADR510
DIIN = 100A
2V/DIV
VOUT = 50mV/DIV
TIME (2s/DIV)
TPC 7. Output Response to 100 µA Input Current
Change with 1 µF Capacitor
TIME (400ms/DIV)
TPC 8. 1 Hz to 10 Hz Noise
PARAMETER DEFINITIONS
Temperature Coefficient
This is the change of output voltage with respect to the operating
temperature changes, normalized by the output voltage at 25°C.
This parameter is expressed in ppm/°C and can be determined
with the following equation
( ( )) ( ( ) )TCVO
ppm
°C
=
VO T2
VO 25°C
VO T1
× T2 T1
× 106
(1)
where:
VO(25°C) = VO at 25°C
VO(T1) = VO at Temperature 1
VO(T2) = VO at Temperature 2
Thermal Hysteresis
Thermal hysteresis is defined as the change of output voltage
after the device is cycled through the temperature from 25°C to
0°C to 70°C and back to 25°C. This is a typical value from a
sample of parts put through such a cycle.
( )VO _ HYS =VO 25°C VO _ TC
[ ] ( ( ) )VO _ HYS
ppm
= VO 25°C VO _ TC
VO 25°C
× 106
(2)
where:
VO(25°C) = VO at 25°C
VO_TC = VO at 25°C after temperature cycle at 25°C to –40°C
to 85°C and back to 25°C
APPLICATIONS SECTION
The ADR510 is a 1.0 V precision shunt voltage reference. It
is designed to operate without an external output capacitor
between the positive and negative terminals for stability. An exter-
nal capacitor can be used for additional filtering of the supply.
As with all shunt voltage references, an external bias resistor
(RBIAS) is required between the supply voltage and the ADR510
(see Figure 1). RBIAS sets the current that is required to pass
through the load (IL) and the ADR510 (IQ). The load and the
supply voltage can vary, thus RBIAS is chosen based on
RBIAS must be small enough to supply the minimum IQ cur-
rent to the ADR510 even when the supply voltage is at its
minimum and the load current is at its maximum value.
RBIAS also needs to be large enough so that IQ does not
exceed 10 mA when the supply voltage is at its maximum
and the load current is at its minimum.
Given these conditions, RBIAS is determined by the supply
voltage (VS), the load and operating current (IL and IQ) of the
ADR510, and the ADR510’s output voltage.
RBIAS = (VS VOUT ) / (IL + IQ )
(3)
–4– REV. 0

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