Precision Micropower Shunt Mode
Voltage References
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
FEATURES
PIN CONFIGURATION
ADR5040/ADR5041/
ADR5043/ADR5044/
Ultracompact SC70 and SOT-23 packages
Low temperature coefficient: 75 ppm/°C (maximum)
Pin compatible with LM4040/LM4050
Initial accuracy: 0.1%
ADR5045
V+
1
2
No external capacitor required
3
NC
Wide operating current range: 50 µA to 15 mA
Extended temperature range: −40°C to +125°C
Qualified for automotive applications
V–
NOTES
1. NC = NO CONNECT.
2. PIN 3 MUST BE LEFT FLOATING OR
CONNECTED TO GROUND.
APPLICATIONS
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23 (RT)
Portable, battery-powered equipment
Automotives
Power supplies
Data acquisition systems
Instrumentation and process control
Energy management
GENERAL DESCRIPTION
Designed for space-critical applications, the ADR5040/
ADR5041/ADR5043/ADR5044/ADR5045 are high precision
shunt voltage references, housed in ultrasmall SC70 and SOT-23
packages. These voltage references are multipurpose, easy-to-use
references that can be used in a vast array of applications. They
feature low temperature drift, an initial accuracy of better than
0.1%, and fast settling time.
Table 1. Selection Table
Temperature
Coefficient
(ppm/°C)
Initial
Part
Voltage (V) Accuracy (%)
ADR5040A 2.048
ADR5040B 2.048
ADR5041A 2.5
ADR5041B 2.5
ADR5043A 3.0
ADR5043B 3.0
ADR5044A 4.096
ADR5044B 4.096
ADR5045A 5.0
ADR5045B 5.0
0.2
0.1
0.2
0.1
0.2
0.1
0.2
0.1
0.2
0.1
100
75
100
75
100
75
100
75
Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V, and
5.0 V, the advanced design of the ADR5040/ADR5041/ADR5043/
ADR5044/ADR5045 eliminates the need for compensation by an
external capacitor, yet the references are stable with any capacitive
load. The minimum operating current increases from 50 µA to
a maximum of 15 mA. This low operating current and ease of use
make these references ideally suited for handheld, battery-powered
applications. This family of references has been characterized
over the extended temperature range of −40°C to +125°C. The
ADR5041W and the ADR5044W are qualified for automotive
applications and are available in a 3-lead SOT-23 package.
100
75
Rev. B
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