AD1582 Analog Devices, AD1582 Datasheet

AD1582

Manufacturer Part Number

AD1582

Description

2.5V Micropower, Precisions Series Mode Voltage References

Manufacturer

Analog Devices

Datasheet

1.AD1582.pdf (13 pages)

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Electrical

Grade

GENERAL DESCRIPTION

The AD1582, AD1583, AD1584, and AD1585 are a family of

low cost, low power, low dropout, precision bandgap references.

These designs are available as three-terminal (series) devices

and are packaged in the compact SOT-23, 3-lead, surface-mount

package. The versatility of these references makes them ideal for

use in battery powered 3 V or 5 V systems where there may be

wide variations in supply voltage and a need to minimize power

dissipation.

The superior accuracy and temperature stability of the AD1582/

AD1583/AD1584/AD1585 is made possible by the precise

matching and thermal tracking of on-chip components. Patented

temperature drift curvature correction design techniques have

been used to minimize the nonlinearities in the voltage output

temperature characteristic.

These series mode devices (AD1582/AD1583/AD1584/AD1585)

will source or sink up to 5 mA of load current and operate effi-

ciently with only 200 mV of required headroom supply. This

family will draw a maximum 65 µA of quiescent current with

only a 1.0 µA/V variation with supply voltage. The advantage of

these designs over conventional shunt devices is extraordinary.

Valuable supply current is no longer wasted through an input

series resistor and maximum power efficiency is achieved at all

input voltage levels.

The AD1582, AD1583, AD1584, and AD1585 are available in

three grades, A, B, and C, which are provided in a tiny foot-

print, the SOT-23. All grades are specified over the industrial

temperature range of –40°C to +85°C.

AD1582

0.08%

0.16%

0.80%

3 Electrical Grades

AD158x Products

AD1583/AD1585 AD1584

0.10%

0.20%

1.00%

Initial Accuracy

0.10%

0.20%

0.98%

Tempco

ppm/ C

100

2.5 V to 5.0 V Micropower, Precision

AD1582/AD1583/AD1584/AD1585

Series Mode Voltage References

TARGET APPLICATIONS

1. Portable, Battery-Powered Equipment. Notebook Computers,

2. Computer Workstations. Suitable for use with a wide range

3. Smart Industrial Transmitters.

4. PCMCIA Cards.

5. Automotive.

6. Hard Disk Drives.

7. 3 V/5 V 8-Bit/12-Bit Data Converters.

Cellular Phones, Pagers, PDAs, GPSs, and DMMs.

of video RAMDACs.

900

800

700

600

500

400

300

200

100

2.7

FUNCTIONAL BLOCK DIAGRAM

GND

OUT

SHUNT REFERENCE

3-Lead SOT-23

(RT Suffix)

TOP VIEW

AD1582/

AD1583/

AD1584/

AD1585

AD1582 SERIES REFERENCE

SUPPLY

3.076k

– V

SOURCE RESISTOR

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