Precision Micropower Shunt Mode

Voltage References

Data Sheet

ADR5040/ADR5041/ADR5043/ADR5044/ADR5045

Rev. B

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FEATURES

Ultracompact SC70 and SOT-23 packages

Low temperature coefficient: 75 ppm/°C (maximum)

Pin compatible with LM4040/LM4050

Initial accuracy: ±0.1%

No external capacitor required

Wide operating current range: 50 µA to 15 mA

Extended temperature range: −40°C to +125°C

Qualified for automotive applications

APPLICATIONS

Portable, battery-powered equipment

Automotives

Power supplies

Data acquisition systems

Instrumentation and process control

Energy management

PIN CONFIGURATION

NOTES

1. NC = NO CONNECT.

2. PIN 3 MUST BE LEFT FLOATING OR

CONNECTED TO GROUND.

ADR5040/ADR5041/

ADR5043/ADR5044/

ADR5045

V+

1

V–

2

NC

3

Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23 (RT)

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.

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.

Table 1. Selection Table

Part

Voltage (V)

Initial

Accuracy (%)

Temperature

Coefficient

(ppm/°C)

ADR5040A

2.048

±0.2

100

ADR5040B

2.048

±0.1

75

ADR5041A

2.5

±0.2

100

ADR5041B

2.5

±0.1

75

ADR5043A

3.0

±0.2

100

ADR5043B

3.0

±0.1

75

ADR5044A

4.096

±0.2

100

ADR5044B

4.096

±0.1

75

ADR5045A

5.0

±0.2

100

ADR5045B

5.0

±0.1

75