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harman/kardon
a
FEATURES
Wide Operating Range: 50 A–10 mA
Initial Accuracy:
0.1% max
Temperature Drift:
Output Impedance: 0.5
Wideband Noise (10 Hz–10 kHz): 20 V 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 Package
GENERAL DESCRIPTION
The AD1580 is a low cost, two-terminal (shunt), precision
bandgap reference. It provides an accurate 1.225 V output for
input currents between 50 µA and 10 mA.
The AD1580's superior accuracy and stability 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 an SOT-23 package, the smallest surface mount
package available on the market. Both grades are specified over
the industrial temperature range of –40°C to +85°C.
TARGET APPLICATIONS
1. Portable, Battery-Powered Equipment:
Cellular Phones, Notebook Computers, PDAs, GPS and
DMM.
2. Computer Workstations
Suitable for use with a wide range of video RAMDACs.
3. Smart Industrial Transmitters
4. PCMCIA Cards.
5. Automotive.
6. 3 V/5 V 8–12-Bit Data Converters.
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
50 ppm/ C max
max
AVR 347/230, AVR 350/230 Semiconductor Pinouts
1.2 V Micropower, Precision
Shunt Voltage Reference
PIN CONFIGURATION
SOT-23 Package
V+
1
V–
2
TOP
VIEW
NC = NO CONNECT
50
45
40
35
30
25
20
15
10
5
0
–40
–30
–20
–10
TEMPERATURE DRIFT – ppm/°C
Reverse Voltage Temperature Drift Distribution
300
250
200
150
100
50
0
–10
–8
–6
–4
–2
OUTPUT ERROR – mV
Reverse Voltage Error Distribution
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
AD1580
3
NC (OR V–)
10
20
30
40
0
0
2
4
6
8
10
© Analog Devices, Inc., 1995
Fax: 617/326-8703
Page 8 of 51
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