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PDF ( 数据手册 , 数据表 ) ADR3530

零件编号 ADR3530
描述 High Accuracy Voltage References
制造商 Analog Devices
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ADR3530 数据手册, 描述, 功能
Data Sheet
Micropower, High Accuracy
Voltage References
ADR3525/ADR3530/ADR3533/ADR3540/ADR3550
FEATURES
Maximum temperature coefficient: 5 ppm/°C (B grade)
Low long-term drift (LTD): 30 ppm (initial 1 khr typical)
Initial output voltage error: ±0.1% (maximum)
Operating temperature range: −40°C to +125°C
Output current: +10 mA source/−3 mA sink
Low quiescent current: 100 μA (maximum)
Low dropout voltage: 250 mV at 2 mA
Output voltage noise (0.1 Hz to 10 Hz): 29 μV p-p at
4.096 V (typical)
Qualified for automotive applications
APPLICATIONS
Automotive battery monitors
Portable instrumentation
Process transmitters
Remote sensors
Medical instrumentation
PIN CONFIGURATION
ENABLE 1
GND SENSE 2
GND FORCE 3
NC 4
ADR35xx
TOP VIEW
(Not to Scale)
8 VIN
7 VOUT SENSE
6 VOUT FORCE
5 NC
NOTES
1. NC = NO CONNECT. DO NOT
CONNECT TO THIS PIN.
Figure 1. 8-Lead MSOP (RM-8 Suffix)
GENERAL DESCRIPTION
The ADR3525W, ADR3530W, ADR3533W, ADR3540W, and
ADR3550W are low cost, low power, high precision CMOS
voltage references, featuring a maximum temperature coeffi-
cient (TC) of 5 ppm/°C (B grade), 8 ppm/°C (A grade), low
operating current, and low output noise in an 8-lead MSOP
package. For high accuracy, the output voltage and temperature
coefficient are trimmed digitally during final assembly using the
Analog Devices, Inc., patented DigiTrim® technology.
The low output voltage hysteresis and low long-term output
voltage drift improve lifetime system accuracy.
These CMOS references are available in five output voltages, all
of which are specified over the automotive temperature range of
−40°C to +125°C.
Table 1. Selection Guide
Model
Output Voltage (V)
ADR3525W 2.500
ADR3530W 3.000
ADR3533W 3.300
ADR3540W 4.096
ADR3550W 5.000
Input Voltage Range (V)
2.7 to 5.5
3.2 to 5.5
3.5 to 5.5
4.3 to 5.5
5.2 to 5.5
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
©2011 Analog Devices, Inc. All rights reserved.







ADR3530 pdf, 数据表
ADR3525/ADR3530/ADR3533/ADR3540/ADR3550
Data Sheet
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 7.
Parameter
Supply Voltage
ENABLE to GND SENSE Voltage
Operating Temperature Range
Storage Temperature Range
Junction Temperature Range
Rating
6V
VIN
−40°C to +125°C
−65°C to +150°C
−65°C to +150°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.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 8. Thermal Resistance
Package Type
θJA
8-Lead MSOP (RM-8 Suffix) 132.5
θJC
43.9
Unit
°C/W
ESD CAUTION
Rev. 0 | Page 8 of 20







ADR3530 equivalent, schematic
ADR3525/ADR3530/ADR3533/ADR3540/ADR3550
Data Sheet
TERMINOLOGY
Dropout Voltage (VDO)
Dropout voltage, sometimes referred to as supply voltage
headroom or supply-output voltage differential, is defined as
the minimum voltage differential between the input and output
such that the output voltage is maintained to within 0.1%
accuracy.
VDO = (VIN − VOUT)min | IL = constant
Because the dropout voltage depends upon the current passing
through the device, it is always specified for a given load current.
In series-mode devices, dropout voltage typically increases
proportionally to load current (see Figure 9 and Figure 10).
Temperature Coefficient (TCVOUT)
The temperature coefficient relates the change in output voltage
to the change in ambient temperature of the device, as normalized
by the output voltage at 25°C. This parameter is expressed in
ppm/°C and can be determined by the following equations:
TCVOUT 1
=
max{VOUT (T1,T2 )}min{VOUT (T1,T2 )}
VOUT (T2 ) × (T2 T1)
×
106 [ppm/°C]
TCVOUT 2
=
max{VOUT (T2 ,T3 )}min{VOUT (T2 ,T3 )}
VOUT (T2 ) × (T3 T2 )
×
106 [ppm/°C]
TCVOUT = max{TCVOUT1,TCVOUT2 }
(1)
where:
VOUT(T) is the output voltage at Temperature T.
T1 = −40°C.
T2 = +25°C.
T3 = +125°C.
This three-point method ensures that TCVOUT accurately
portrays the maximum difference between any of the three
temperatures at which the output voltage of the part is
measured.
Thermally Induced Output Voltage Hysteresis (ΔVOUT_HYS)
Thermally induced output voltage hysteresis represents the
change in output voltage after the device is exposed to a
specified temperature cycle. This is expressed as either a shift in
voltage or a difference in ppm from the nominal output.
ΔVOUT _ HYS = VOUT (25°C) VOUT _ TC [V]
ΔVOUT _ HYS
= VOUT (25°C) VOUT _ TC
VOUT (25°C)
× 10 6
[ppm]
where:
VOUT(25°C) is the output voltage at 25°C.
VOUT_TC is the output voltage after temperature cycling.
Long-Term Output Voltage Drift (ΔVOUT_LTD)
Long-term output voltage drift refers to the shift in output
voltage after 1000 hours of operation in a constant 50°C
environment. This is expressed as either a shift in voltage or a
difference in ppm from the nominal output.
ΔVOUT _ LTD = VOUT (t1 )VOUT (t0 ) [V]
ΔVOUT _ LTD =
VOUT (t1)VOUT (t0 )
VOUT (t0 )
× 106
[ppm]
where:
VOUT(t0) is the VOUT at 50°C at Time 0.
VOUT(t1) is the VOUT at 50°C after 1000 hours of operation
at 50°C.
Line Regulation
Line regulation refers to the change in output voltage in response
to a given change in input voltage and is expressed in percent
per volt, ppm per volt, or microvolts per volt change in input
voltage. This parameter accounts for the effects of self-heating.
Load Regulation
Load regulation refers to the change in output voltage in
response to a given change in load current and is expressed in
microvolts per mA, ppm per mA, or ohms of dc output
resistance. This parameter accounts for the effects of self-
heating.
Solder Heat Resistance (SHR) Drift
SHR drift refers to the permanent shift in output voltage
induced by exposure to reflow soldering, expressed in units of
ppm. This is caused by changes in the stress exhibited upon the
die by the package materials when exposed to high tempera-
tures. This effect is more pronounced in lead-free soldering
processes due to higher reflow temperatures.
Rev. 0 | Page 16 of 20










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