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ADR3430 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADR3430
Beschreibung (ADR3412 - ADR3450) HIGH-ACCURACY VOLTAGE REFERENCES
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 13 Seiten
ADR3430 Datasheet, Funktion
Micro-Power, High-Accuracy
Voltage References
Preliminary Technical Data ADR3412/3420/3425/3430/3433/3440/3450
FEATURES
Initial accuracy: ± 0.1%
Max. temp. coefficient: 10 ppm / °C
Operating temperature: -40°C – +125 °C
Output current: +10 mA source / -3 mA sink
Low quiescent current: 70 μA (max)
Low dropout voltage: 200 mV @ 2 mA
Output noise (0.1 – 10 Hz): < 10 μVp-p@ 1.25 V
SOT23-6 package
APPLICATIONS
Precision data acquisition systems
High-resolution data converters
Industrial instrumentation
Medical devices
Automotive controls
Battery-powered devices
GENERAL DESCRIPTION
The ADR34xx series of devices are low-cost, low-power, high
precision voltage references, featuring ± 0.1% initial accuracy,
low operating current and low output noise in a small SOT23
package.
For high accuracy, output voltage and temperature coefficient
are trimmed digitally during final assembly using Analog
Devices’ proprietary Digi-Trim technology. Stability and
reliability are further improved by the devices’ low output
voltage hysteresis and low long-term output voltage drift.
www.DaFtuarSthheeremt4oUr.ce,otmhe low operating current of the device (70 μA
max) facilitates usage in low-power devices, while its low output
noise helps maintain signal integrity in critical signal processing
systems.
ADR34xx series references are available in a wide range of
output voltages, all of which are specified over the industrial
temperature range of -40°C to +125 °C.
PIN CONFIGURATION
GND FORCE 1
GND SENSE 2
ADR34xx
TOP VIEW
(Not to Scale)
6 VOUT FORCE
5 VOUT SENSE
ENABLE 3
4 VIN
Figure 1. 6-Lead SOT23
Table 1. Selection Guide
Model
Output Voltage (V)
ADR3412 1.200
ADR3420 2.048
ADR3425 2.500
ADR3430 3.000
ADR3433 3.300
ADR3440 4.096
ADR3450 5.000
Input Voltage Range (V)
2.3 – 5.5
2.3 – 5.5
2.7 – 5.5
3.2 – 5.5
3.5 – 5.5
4.3 – 5.5
5.2 – 5.5
Rev. PrB
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
©2009 Analog Devices, Inc. All rights reserved.






ADR3430 Datasheet, Funktion
ADR3412/3420/3425/3430/3433/3440/3450
Preliminary Technical Data
ADR3450 ELECTRICAL CHARACTERISTICS
Unless otherwise noted, VIN = 5.2 to 5.5 V, IL = ? mA, TA = 25°C.
Table 8.
Parameter
OUTPUT VOLTAGE
INITIAL ACCURACY
Symbol
VOUT
VOERR
Conditions
TEMPERATURE COEFFICIENT
LINE REGULATION
TCVOUT
ΔVO / ΔVIN
LOAD REGULATION
ΔVO / ΔIL
QUIESCENT CURRENT
IQ
DROPOUT VOLTAGE
RIPPLE REJECTION RATIO
OUTPUT CURRENT CAPACITY
Sinking
Sourcing
OUTPUT VOLTAGE NOISE
OUTPUT VOLTAGE NOISE DENSITY
OUTPUT VOLTAGE HYSTERESIS
LONG-TERM STABILITY
TURN-ON SETTLING TIME
VDO
RRR
IL
eNp-p
eN
ΔVOUT_HYS
ΔVOUT_LTD
tR
VIN = 2.4 V to 5.5 V
VIN = 2.4 V to 5.5 V , -40°C ≤ TA ≤ +125°C
IL = -3 mA to +10 mA
IL = -3 mA to +10 mA , -40°C ≤ TA ≤ +125°C
-40°C ≤ TA ≤ +125°C
IL = 2 mA, TA = -40°C ≤ TA ≤ +125°C
fIN = 10 kHz
TA = +25°C -40°C +125°C +25°C
1000 hours @ 25°C
Min Typ Max Unit
5.000
V
±0.1 %
±5.0 mV
10 ppm / °C
5 20 ppm / V
40 150 ppm / V
12 20
ppm / mA
50 ppm / mA
70 μA
90 μA
200 mV
TBD dB
-3 mA
10 mA
33 41.7 μVp-p
5.5 μVRMS
50 ppm
50 ppm
TBD μs
www.DataSheet4U.com
Rev. PrB | Page 6 of 13

6 Page









ADR3430 pdf, datenblatt
ADR3412/3420/3425/3430/3433/3440/3450
APPLICATIONS
BASIC VOLTAGE REFERENCE CONNECTION
(insert circuit diagram)
The circuit shown in figure XX illustrates the basic
configuration for the ADR34xx family. Decoupling capacitors
should be connected according to the guidelines below.
INPUT AND OUTPUT CAPACITORS
A 1 μF to 10 μF electrolytic or ceramic capacitor can be
connected to the input to improve transient response in
applications where the supply voltage may fluctuate. An
additional 0.1 μF ceramic capacitor should be connected in
parallel in order to reduce supply noise.
While the IC will function stably without a capacitor connected
to the output, connecting a 0.1 μF ceramic capacitor to the
output is highly recommended to improve stability and filter
out low-level voltage noise. An additional 1 μF to 10 μF
electrolytic or ceramic capacitor can be added in parallel to
improve transient performance in response to sudden changes
in load current; however, the designer should keep in mind that
doing so will increase the turn-on time of the device.
Preliminary Technical Data
www.DataSheet4U.com
Rev. PrB | Page 12 of 13

12 Page





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