Micropower, High Accuracy
Voltage References
ADR3412/ADR3420/ADR3425/ADR3430/ADR3433/ADR3440/ADR3450
FEATURES
PIN CONFIGURATION
Initial accuracy: 0.1ꢀ (maximum)
GND FORCE
GND SENSE
ENABLE
1
6
5
4
V
V
V
FORCE
OUT
OUT
IN
Maximum temperature coefficient: 8 ppm/°C
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 noise (0.1 Hz to 10 Hz): <10 μV p-p at 1.2 V (typical)
6-lead SOT-23
ADR34xx
SENSE
2
3
TOP VIEW
(Not to Scale)
Figure 1. 6-Lead SOT-23
APPLICATIONS
Precision data acquisition systems
Industrial instrumentation
Medical devices
Battery-powered devices
GENERAL DESCRIPTION
Table 2. Voltage Reference Choices from Analog Devices
The ADR3412/ADR3420/ADR3425/ADR3430/ADR3433/
ADR3440/ADR3450 are low cost, low power, high precision
CMOS voltage references, featuring 0ꢀ1ꢁ initial accuracy, low
operating current, and low output noise in a small SOT-23
packageꢀ For high accuracy, output voltage and temperature
coefficient are trimmed digitally during final assembly using
Analog Devices, Incꢀ, patented DigiTrim® technologyꢀ
High Voltage,
High Perfor-
mance
VOUT
(V)
Low Cost/
Low Power Power
Ultralow Low
Noise
0.5/1.0
1.2
ADR130
ADR3412
ADR280
2.048
2.5
ADR360
ADR3420
ADR3425
AD1582
ADR361
ADR3430
AD1583
ADR363
REF191
ADR430
ADR440
Stability and system reliability are further improved by the low
output voltage hysteresis of the device and low long-term output
voltage driftꢀ Furthermore, the low operating current of the
device (100 μA maximum) facilitates usage in low power
devices, and its low output noise helps maintain signal integrity
in critical signal processing systemsꢀ
ADR291 ADR431
REF192
ADR03
AD780
ADR441
ADR433
ADR443
3.0
REF193
ADR06
AD780
These CMOS are available in a wide range of output voltages, all
of which are specified over the industrial temperature range of
−40°C to +125°Cꢀ
3.3
ADR366
REF196
ADR3433
4.096
ADR3440
AD1584
ADR364
ADR3450
AD1585
ADR365
ADR292 ADR434
Table 1. Selection Guide
Model
Output Voltage (V)
Input Voltage Range (V)
2.3 to 5.5
2.3 to 5.5
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
REF198
ADR293 ADR435
REF195 ADR445
ADR444
ADR3412
ADR3420
ADR3425
ADR3430
ADR3433
ADR3440
ADR3450
1.200
2.048
2.500
3.000
3.300
4.096
5.000
5.0
ADR02
AD586
ADR01
AD587
10.0
Rev. B
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