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ADR1500 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADR1500은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 ADR1500 기능
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ADR1500 데이터시트, 핀배열, 회로
www.DataSheet4U.com
FEATURES
Wide operating range: 50 μA to 10 mA
Initial accuracy: ±0.2% max
Output impedance: 1 Ω max
Wideband noise (10 Hz to 10 kHz): 20 μV rms
Operating temperature: −40°C to +85°C
Compact, surface-mount SC70 package
APPLICATIONS
Computer servers
Battery-powered instrumentation
Portable medical equipment
Automotive
GENERAL DESCRIPTION
The ADR1500 is a low cost, 2-terminal (shunt), precision band
gap reference. It provides an accurate 1.2875 V output for input
currents between 50 μA to 10 mA.
The low minimum operating current makes the ADR1500 ideal
for use in battery-powered 3 V or 5 V systems. However, the
wide operating current range means the ADR1500 is extremely
versatile and suitable for use in a wide variety of high current
applications.
The ADR1500 is available in the tiny SC70 package and is
specified over the −40°C to +85°C operating temperature range.
1.2875 V Micropower, Shunt
Voltage Reference
ADR1500
PIN CONFIGURATION
ADR1500
TOP VIEW
(Not to Scale)
V– 1
V+ 2
3 NC (OR V–)
NC = NO CONNECT
Figure 1. 3-Lead SC70 (KS Suffix)
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. 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
©2006 Analog Devices, Inc. All rights reserved.




ADR1500 pdf, 반도체, 판매, 대치품
ADR1500
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Reverse Current
Forward Current
SC70 (KS) Package Dissipation
θJA
θJC
Storage Temperature Range
Operating Temperature Range
Lead Temperature, Soldering
Vapor Phase (60 sec)
Infrared (15 sec)
Rating
25 mA
20 mA
376°C/W
189°C/W
−65°C to +150°C
−55°C to +150°C
215°C
220°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. 0 | Page 4 of 8

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ADR1500 전자부품, 판매, 대치품
2.4V
VIN 0V
OUTPUT ERROR
1mV/DIV 2µs/DIV
OUTPUT
0.5mV/DIV 2ms/DIV
Figure 10. Turn-On Settling Time
Attempts to drive a large capacitive load (in excess of 1000 pF)
can result in ringing. This is due to the additional poles formed
by the load capacitance and the output impedance of the reference.
A recommended method for driving capacitive loads of this
magnitude is shown in Figure 11.
RS = 11.5k
VIN
RL
+
VR
CL VOUT
Figure 11. Turn-On, Settling, and Transient Test Circuit
ADR1500
TRANSIENT RESPONSE
Many ADCs and DACs present transient current loads to the
reference. Poor reference response can degrade the converter’s
performance. Figure 12 displays both the coarse and fine
settling characteristics of the device to load transient of ±50 μA.
It shows the settling characteristics of the device for an
increased reverse current of 50 μA and the response when the
reverse current is decreased by 50 μA. The transients settle to
1 mV in about 3 μs.
20mV/DIV
1mV/DIV
IR = 100µA + 50µA STEP
IR = 100µA – 50µA STEP
20mV/DIV
1mV/DIV
1µs/DIV
Figure 12. Transient Settling Time
A resistor isolates the capacitive load from the output stage,
while the capacitor provides a single-pole, low-pass filter and
lowers the output noise.
Rev. 0 | Page 7 of 8

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