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ADR4540 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADR4540
Beschreibung (ADR4520 - ADR4550) High Accuracy Voltage References
Hersteller Analog Devices
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Gesamt 30 Seiten
ADR4540 Datasheet, Funktion
Data Sheet
Ultralow Noise, High Accuracy
Voltage References
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550
FEATURES
Maximum temperature coefficient (TCVOUT): 2 ppm/°C
Output noise (0.1 Hz to 10 Hz)
Less than 1 μV p-p at VOUT of 2.048 V typical
Initial output voltage error: ±0.02% (maximum)
Input voltage range: 3 V to 15 V
Operating temperature: −40°C to +125°C
Output current: +10 mA source/−10 mA sink
Low quiescent current: 950 μA (maximum)
Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V)
8-lead SOIC package
APPLICATIONS
Precision data acquisition systems
High resolution data converters
High precision measurement devices
Industrial instrumentation
Medical devices
Automotive battery monitoring
GENERAL DESCRIPTION
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/
ADR4550 devices are high precision, low power, low noise
voltage references featuring ±0.02% maximum initial error,
excellent temperature stability, and low output noise.
This family of voltage references uses an innovative core
topology to achieve high accuracy while offering industry-leading
temperature stability and noise performance. The low, thermally
induced output voltage hysteresis and low long-term output
voltage drift of the devices also improve system accuracy over
time and temperature variations.
A maximum operating current of 950 μA and a maximum low
dropout voltage of 300 mV allow the devices to function very
well in portable equipment.
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/
ADR4550 series of references is provided in an 8-lead SOIC
package and is available in a wide range of output voltages, all of
which are specified over the extended industrial temperature
range of −40°C to +125°C.
PIN CONFIGURATION
ADR4520/ADR4525/
ADR4530/ADR4533/
ADR4540/ADR4550
NC 1
8 TP
VIN 2
7 NC
NC 3 TOP VIEW 6 VOUT
GND 4 (Not to Scale) 5 NC
NOTES
1. NC = NO CONNECT.
2. TP = TEST PIN. DO NOT CONNECT.
Figure 1. 8-Lead SOIC
Table 1. Selection Guide
www.DataSheet.co.kr
Model
ADR4520
ADR4525
ADR4530
ADR4533
ADR4540
ADR4550
Output Voltage (V)
2.048
2.5
3.0
3.3
4.096
5.0
Table 2. Voltage Reference Choices from Analog Devices
Low Cost/
Ultralow High Voltage,
VOUT (V) Low Power Micropower Noise
High Performance
2.048 ADR360
REF191
ADR430
ADR3420
ADR440
2.5 ADR3425 ADR291 ADR431 ADR03
AD1582
REF192
ADR441 AD780
ADR361
5.0 ADR3450 ADR293 ADR435 ADR02
AD1585
REF195
ADR445 AD586
ADR365
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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
©2012 Analog Devices, Inc. All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/






ADR4540 Datasheet, Funktion
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550
Data Sheet
ADR4533 ELECTRICAL CHARACTERISTICS
Unless otherwise noted, VIN = 3.4 V to 15 V, IL = 0 mA, TA = 25°C.
Table 6.
Parameter
OUTPUT VOLTAGE
INITIAL OUTPUT VOLTAGE ERROR
Symbol
VOUT
VOUT_ERR
Test Conditions/Comments
B grade
Min
A grade
SOLDER HEAT SHIFT
TEMPERATURE COEFFICIENT
LINE REGULATION
LOAD REGULATION
QUIESCENT CURRENT
DROPOUT VOLTAGE
RIPPLE REJECTION RATIO
OUTPUT CURRENT CAPACITY
Sinking
Sourcing
OUTPUT VOLTAGE NOISE
OUTPUT VOLTAGE NOISE DENSITY
OUTPUT VOLTAGE HYSTERESIS
LONG-TERM DRIFT
TURN-ON SETTLING TIME
LOAD CAPACITANCE
TCVOUT
ΔVOUT/ΔVIN
ΔVOUT/ΔIL
IQ
VDO
RRR
IL
B grade, −40°C ≤ TA ≤ +125°C
A grade, −40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
IL = 0 mA to +10 mA source, −40°C ≤ TA ≤ +125°C
IL = 0 mA to −10 mA sink, −40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C, no load
−40°C ≤ TA ≤ +125°C, no load
−40°C ≤ TA ≤ +125°C, IL = 2 mA
fIN =1 kHz
eNp-p
eN
ΔVOUT_HYS
ΔVOUT_LTD
tR
0.1 Hz to 10.0 Hz
1 kHz
TA = temperature cycled from +25°C to −40°C to
+125°C and back to +25°C
www.DataSheet.co.kr
1000 hours at 60°C
IL = 0 mA, CL = 0.1 µF, CIN = 0.1 µF, RL = 1 kΩ
0.1
Typ
3.300
±0.02
1
30
60
700
90
Max
±0.02
660
±0.04
1.32
2
4
10
80
120
950
100
300
Unit
V
%
µV
%
mV
%
ppm/°C
ppm/°C
ppm/V
ppm/mA
ppm/mA
μA
mV
mV
dB
−10
10
2.1
64.2
50
25
135
100
mA
mA
μV p-p
nV/√Hz
ppm
ppm
µs
µF
Rev. 0 | Page 6 of 32
Datasheet pdf - http://www.DataSheet4U.net/

6 Page









ADR4540 pdf, datenblatt
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550
Data Sheet
1.4
ADR4520
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Figure 9. ADR4520 Line Regulation vs. Temperature
1k
ADR4520
100
10
1
0.01 0.1
1 10 100 1k
FREQUENCY (Hz)
10k 100k
Figure 12. ADR4520 Output Noise Spectral Density
1000
800
+125°C
ADR4520
600 +25°C –40°C
400
200
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
VIN (V)
Figure 10. ADR4520 Supply Current vs. Supply Voltage
120
ADR4520
100
80
60
40
20
0
0.4 0.7 1.0 1.3 1.6 1.9 2.2 2.5 2.8
OUTPUT VOLTAGE NOISE DISTRIBUTION (µV p-p)
Figure 11. ADR4520 Output Voltage Noise
(Maximum Amplitude from 0.1 Hz to 10 Hz)
0
ADR4520
–10 CLOAD = 1µF
–20
–30
–40
–50
–60
–70
–80
www.DataSheet.co.kr
–90
–100
–110
–120
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 13. ADR4520 Ripple Rejection Ratio vs. Frequency
T ADR4520
INPUT
2
OUTPUT AC
CIN = 0.1µF
1 COUT = 1µF
CH1 1.00V CH2 1.00mV
BW
M40.0µs A CH1
T 12.0%
7.02V
Figure 14. ADR4520 Line Transient Response
Rev. 0 | Page 12 of 32
Datasheet pdf - http://www.DataSheet4U.net/

12 Page





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