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參數資料
| 型號： | AD584TQ |
| 英文描述： | Voltage Reference |
| 中文描述： | 電壓基準 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 304K |
| 代理商： | AD584TQ |
PIN CONFIGURATIONS
8-Pin TO-99
8-Pin DIP
REV. A
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.
a
Pin Programmable
Precision Voltage Reference
AD584*
FEATURES
Four Programmable Output Voltages:
10.000 V, 7.500 V, 5.000 V, 2.500 V
Laser-Trimmed to High Accuracies
No External Components Required
Trimmed Temperature Coefficient:
5 ppm/ C max, 0 C to +70 C (AD584L)
15 ppm/ C max, –55 C to +125
°C (AD584T)
Zero Output Strobe Terminal Provided
Two Terminal Negative Reference
Capability (5 V & Above)
Output Sources or Sinks Current
Low Quiescent Current: 1.0 mA max
10 mA Current Output Capability
MIL-STD-883 Compliant Versions Available
GENERAL DESCRIPTION
The AD584 is an eight-terminal precision voltage reference of-
fering pin-programmable selection of four popular output volt-
ages: 10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output
voltages, above, below or between the four standard outputs, are
available by the addition of external resistors. Input voltage may
vary between 4.5 and 30 volts.
Laser Wafer Trimming (LWT) is used to adjust the pin-pro-
grammable output levels and temperature coefficients, resulting
in the most flexible high precision voltage reference available in
monolithic form.
In addition to the programmable output voltages, the AD584
offers a unique strobe terminal which permits the device to be
turned on or off. When the AD584 is used as a power supply
reference, the supply can be switched off with a single, low-
power signal. In the “off” state the current drain by the AD584
is reduced to about 100
A. In the “on” state the total supply
current is typically 750
A including the output buffer amplifier.
The AD584 is recommended for use as a reference for 8-, 10- or
12-bit D/A converters which require an external precision refer-
ence. The device is also ideal for all types of A/D converters of
up to 14-bit accuracy, either successive approximation or inte-
grating designs, and in general can offer better performance
than that provided by standard self-contained references.
The AD584J, K and L are specified for operation from 0
°C to
+70
°C; the AD584S and T are specified for the –55°C to
+125
°C range. All grades are packaged in a hermetically sealed
eight-terminal TO-99 metal can; the AD584 J and K are also
available in an 8-pin plastic DIP.
*Protected by U.S. Patent No. 3,887,863; RE 30,586
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
PRODUCT HIGHLIGHTS
1. The flexibility of the AD584 eliminates the need to design-
in and inventory several different voltage references. Fur-
thermore one AD584 can serve as several references
simultaneously when buffered properly.
2. Laser trimming of both initial accuracy and temperature co-
efficient results in very low errors over temperature without
the use of external components. The AD584LH has a maxi-
mum deviation from 10.000 volts of
±7.25 mV from 0°C to
+70
°C.
3. The AD584 can be operated in a two-terminal “Zener”
mode at 5 volts output and above. By connecting the input
and the output, the AD584 can be used in this “Zener” con-
figuration as a negative reference.
4. The output of the AD584 is configured to sink or source
currents. This means that small reverse currents can be tol-
erated in circuits using the AD584 without damage to the
reference and without disturbing the output voltage (10 V,
7.5 V and 5 V outputs).
5. The AD584 is available in versions compliant with MIL-
STD-883. Refer to the Analog Devices Military Products
Databook or current AD584/883B data sheet for detailed
specifications.
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