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參數(shù)資料
| 型號(hào)： | AD526 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Software Programmable Gain Amplifier(軟件可編程增益放大器) |
| 中文描述： | 軟件可編程增益放大器（軟件可編程增益放大器） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 397K |
| 代理商： | AD526 |
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Software Programmable
Gain Amplifier
AD526
FEATURES
Digitally Programmable Binary Gains from 1 to 16
Two-Chip Cascade Mode Achieves Binary Gain from
1 to 256
Gain Error:
0.01% max, Gain = 1, 2, 4 (C Grade)
0.02% max, Gain = 8, 16 (C Grade)
0.5 ppm/
8
C Drift Over Temperature
Fast Settling Time
10 V Signal Change:
0.01% in 4.5
m
s (Gain = 16)
Gain Change:
0.01% in 5.6
m
s (Gain = 16)
Low Nonlinearity:
6
0.005% FSR max (J Grade)
Excellent DC Accuracy:
Offset Voltage: 0.5 mV max (C Grade)
Offset Voltage Drift: 3
m
V/
8
C (C Grade)
TTL Compatible Digital Inputs
PRODUCT DE SCRIPT ION
T he AD526 is a single-ended, monolithic software program-
mable gain amplifier (SPGA) that provides gains of 1, 2, 4, 8
and 16. It is complete, including amplifier, resistor network and
T T L-compatible latched inputs, and requires no external
components.
Low gain error and low nonlinearity make the AD526 ideal for
precision instrumentation applications requiring programmable
gain. T he small signal bandwidth is 350 kHz at a gain of 16. In
addition, the AD526 provides excellent dc precision. T he FET -
input stage results in a low bias current of 50 pA. A guaranteed
maximum input offset voltage of 0.5 mV max (C grade) and low
gain error (0.01%, G = 1, 2, 4, C grade) are accomplished using
Analog Devices’ laser trimming technology.
T o provide flexibility to the system designer, the AD526 can be
operated in either latched or transparent mode. T he force/sense
configuration preserves accuracy when the output is connected
to remote or low impedance loads.
T he AD526 is offered in one commercial (0
°
C to +70
°
C) grade,
J, and three industrial grades, A, B and C, which are specified
from –40
°
C to +85
°
C. T he S grade is specified from –55
°
C to
+125
°
C. T he military version is available processed to MIL-
ST D 883B, Rev C. T he J grade is supplied in a 16-pin plastic
DIP, and the other grades are offered in a 16-pin hermetic side-
brazed ceramic DIP.
PIN CONFIGURAT ION
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
APPLICAT ION HIGHLIGHT S
1.
Dynamic Range E xtension for ADC Systems:
A single
AD526 in conjunction with a 12-bit ADC can provide
96 dB of dynamic range for ADC systems
.
2.
Gain Ranging Pre-Amps:
T he AD526 offers complete
digital
gain control with precise gains in binary steps from 1
to 16. Additional gains of 32, 64, 128
and 256 are possible
by cascading two AD526s
.
ORDE RING GUIDE
T emperature
Range
Package
Description
Package
Option
Model
AD526JN
AD526AD
AD526BD
AD526CD
AD526SD/883B
5962-9089401MEA*
Commercial
Industrial
Industrial
Industrial
Military
16-Pin Plastic DIP
16-Pin Cerdip
16-Pin Cerdip
16-Pin Cerdip
16-Pin Cerdip
N-16
D-16
D-16
D-16
D-16
*Refer to official DESC drawing for tested specifications.
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