AD1580A Ver la hoja de datos (PDF) - Analog Devices
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Fabricante
AD1580A Datasheet PDF : 12 Pages
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FEATURES
Wide operating range: 50 μA to 10 mA
Initial accuracy: ±0.1% maximum
Temperature drift: ±50 ppm/°C maximum
Output impedance: 0.5 Ω maximum
Wideband noise (10 Hz to 10 kHz): 20 μV rms
Operating temperature range: –40°C to +85°C
High ESD rating
4 kV human body model
400 V machine model
Compact, surface-mount SOT-23 and SC70 packages
APPLICATIONS
Portable, battery-powered equipment
Cellular phones, notebook computers, PDAs, GPSs, and
DMMs
Computer workstations
Suitable for use with a wide range of video RAMDACs
Smart industrial transmitters
PCMCIA cards
Automotive
3 V/5 V, 8-bit to 12-bit data converters
GENERAL DESCRIPTION
The AD15801 is a low cost, 2-terminal (shunt), precision band
gap reference. It provides an accurate 1.225 V output for input
currents between 50 μA and 10 mA.
The superior accuracy and stability of the AD1580 is made
possible by the precise matching and thermal tracking of on-
chip components. Proprietary curvature correction design
techniques have been used to minimize the nonlinearities in the
voltage output temperature characteristics. The AD1580 is
stable with any value of capacitive load.
The low minimum operating current makes the AD1580 ideal for use
in battery-powered 3 V or 5 V systems. However, the wide operating
current range means that the AD1580 is extremely versatile and
suitable for use in a wide variety of high current applications.
The AD1580 is available in two grades, A and B, both of which
are provided in the SOT-23 and SC70 packages, the smallest
surface-mount packages available. Both grades are specified
over the industrial temperature range of −40°C to +85°C.
1 Protected by U.S. Patent No. 5,969,657; other patents pending.
Rev. C
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.
Trademarks and registered trademarks are the property of their respective owners.
1.2 V Micropower, Precision
Shunt Voltage Reference
AD1580
PIN CONFIGURATIONS
AD1580
V+ 1
3 NC (OR V–)
V– 2
TOP VIEW
NC = NO CONNECT
Figure 1.
AD1580
V– 1
3 NC (OR V–)
V+ 2
TOP VIEW
NC = NO CONNECT
Figure 2.
50
45
40
35
30
25
20
15
10
5
0
–40 –30 –20 –10
0
10
20
30
40
TEMPERATURE DRIFT (ppm/°C)
Figure 3. Reverse Voltage Temperature Drift Distribution
300
250
200
150
100
50
0
–10 –8 –6 –4 –2 0 2 4 6 8 10
OUTPUT ERROR (mV)
Figure 4. Reverse Voltage Error Distribution
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©2006 Analog Devices, Inc. All rights reserved.
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