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PDF AD1589 Data sheet ( Hoja de datos )
| Número de pieza | AD1589 | |
| Descripción | Precision Shunt Mode Voltage References | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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a
2.5 V to 5.0 V Micropower, Precision
Shunt Mode Voltage References
PRELIMINARY TECHNICAL INFORMATION
FEATURES
Shunt Reference (2.5V, 3V, 4.096V, 5V)
Initial Accuracy: +/- 0.1% max
Temperature Drift: +/- 50 ppm/°C max
Wide Operating Range : 50µA to 10mA
Dynamic Output Impedance : 0.5Ω max
Wideband Noise (10Hz - 10kHz): 50µVRMS
Operating Temperature Range: -40°C to 85°C
Compact, Surface-Mount, SOT-23 package
AD1586/7/8/9
FUNCTIONAL BLOCK DIAGRAM
V+ 1
V- 2
3 NC
AD1586/7/8/9
TOP VIEW
NC = NO CONNECT
GENERAL DESCRIPTION
TARGET APPLICATIONS
The AD1586, AD1587, AD1588, and AD1589 are a family of 1. Portable, Battery-Powered Equipment:
low cost, low power, precision bandgap references. They are
Notebook Computers, Cellular Phones, Pagers, PDA's,
available as two-terminal (shunt) devices and are packaged in the GPS', and DMM's.
compact SOT-23. These references provide accurate output
voltages for input currents between 50µA and 10mA.
2. Computer Workstations:
Suitable for use with a wide range of video RAMDACs.
3. Smart Industrial Transmitters.
The AD1586/7/8/9's superior accuracy and temperature stability
are made possible by the precise matching and thermal tracking 4. PCMCIA Cards.
of on-chip components. Patented temperature drift curvature
correction design techniques have been used to minimize the
nonlinearities in the voltage output temperature characteristic.
5. Automotive.
6. Hard Disk Drives.
7. 3 V / 5 V 8-12 Bit Data Converters.
The low minimum operating currents of the AD1586/7/8/9 make
these references ideal for use in battery powered 3V or 5V
systems, where there is a need to minimize power dissipation.
With their wide input current ranges, however, these designs are
extremely versatile and suitable for use in a variety of high
100
current applications. In addition, their tiny packaging and
inherent stability under all values of capacitive load, makes the
AD1586/7/8/9 family of references ideal for space critical
applications.
The AD1586, AD1587, AD1588, and AD1589, are available in
two grades, A and B, both of which are provided in the smallest
-µA10
RENT
CUR
REVERSE 1
available package on the market, the SOT-23. Both grades are
specified over the industrial temperature range of -40°C to
+85°C.
0.1
0
0.2 0.4
0.6 0.8 1.0
REVERSE VOLTAGE - V
1.2 1.4
Reverse Voltage Temperature Drift Distribution
PRELIM. B, JUNE 96
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.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
1 page  
AD1589–SPECIFICATIONS (@ TA = TMIN - TMAX, VIN = 6 V, unless otherwise noted)
Model
AD1589A
AD1589B
Min Typ Max Min Typ Max
Units
Reverse Voltage Output (@ +25°C)
4.95 5.00 5.05 4.995 5.000 5.005
V
Reverse Voltage Temperature Drift1
100 50 ppm/°C
Minimum Operating Current, TMIN to TMAX
Reverse Voltage Change With Reverse Current
50µA < IIN < 10 mA, TMIN to TMAX
50µA < IIN < 1 mA, TMIN to TMAX
Dynamic Output Impedance (∆VR/∆IR)
IIN = 1mA +/- 100 µA (f = 120 Hz)
Noise Voltage
0.1 Hz to 10 Hz
10 Hz to 10 kHz
Turn-On Settling Time to 0.1%2
50
4.5 9
1
0.4 1
50
100
25
50
4.5 9
1
0.4 0.5
50
100
25
µA
mV
mV
Ω
µVP-P
µVRMS
µS
Long Term Stability
1000 hrs.@ +25°C
100 100 ppm/1000 hrs
Output Voltage Hysteresis3
TBD
TBD
µV
Temperature Range
Specified Performance (A, B)
Operating Performance (A, B)4
-40 +85 -40 +85 °C
-55
+125 -55
+125
°C
NOTES
1Maximum output voltage drift is guaranteed for all grades.
2Measured with no capacitance load.
3Hysteresis is defined as the change in the 25°C output voltage, caused by bringing the device to +85°C, taking a 25°C measurement, and then
bringing it to -40°C, followed by another 25°C measurement.
4The operating temperature range is defined as the temperature extremes at which the device will still function. Parts may deviate from their
specified performance outside the specified temperature range.
Specifications subject to change without notice.
PRELIM. B, JUNE 96
-5-
5 Page 
PRELIMINARY TECHNICAL INFORMATION
APPLICATIONS INFORMATION
BUFFERED MICRO POWER 2.5 V REFERENCE PROVIDING
100MA OUTPUT
Figure 21. Precision Buffered Circuit
LOW POWER, 2.5 V REFERENCE FOR SINGLE SUPPLY
MULTIPYING DACS
AD1586/7/8/9
Figure 22. Using the AD1586 with Single Supply DACS
PRELIM. B, JUNE 96
–11–
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AD1589.PDF ] | |
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