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| 型號(hào)： | AD538ADZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 0K |
| 描述： | IC REALTIME ACU UNIT 18-CDIP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 模擬計(jì)算裝置 |
| 位元/級(jí)數(shù)： | 單象限 |
| 封裝/外殼： | 18-CDIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 18-CDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 789 (CN2011-ZH PDF) |
Real-Time Analog
Computational Unit (ACU)
AD538
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2011 Analog Devices, Inc. All rights reserved.
FEATURES
VO = VY(VZ/VX)m transfer function
Wide dynamic range (denominator) 1000:1
Simultaneous multiplication and division
Resistor-programmable powers and roots
No external trims required
Low input offsets <100 μV
Low error ±0.25% of reading (100:1 range)
Monolithic construction
Real-time analog multiplication, division and
exponentiation
High accuracy analog division with a wide input dynamic range
On board +2 V or +10 V scaling reference
Voltage and current (summing) input modes
Monolithic construction with lower cost and higher
reliability than hybrid and modular circuits
APPLICATIONS
One- or two-quadrant multiply/divide
Log ratio computation
Squaring/square rooting
Trigonometric function approximations
Linearization via curve fitting
Precision AGC
Power functions
FUNCTIONAL BLOCK DIAGRAM
VO
A
B
D
VX
VZ
VY
+10V
+2V
C
I
IX
IZ
IY
00
95
9-
00
1
100
25k
AD538
LOG
RATIO
25k
OUTPUT
ANTILOG
INTERNAL
VOLTAGE
REFERENCE
LOG
Figure 1.
GENERAL DESCRIPTION
The AD538 is a monolithic real-time computational circuit
that provides precision analog multiplication, division, and
exponentiation. The combination of low input and output offset
voltages and excellent linearity results in accurate computation
over an unusually wide input dynamic range. Laser wafer
trimming makes multiplication and division with errors as low
as 0.25% of reading possible, while typical output offsets of
100 μV or less add to the overall off-the-shelf performance level.
Real-time analog signal processing is further enhanced by the
400 kHz bandwidth of the device.
The overall transfer function of the AD538 is VO = VY(VZ/VX)m.
Programming a particular function is via pin strapping. No
external components are required for one-quadrant (positive
input) multiplication and division. Two-quadrant (bipolar
numerator) division is possible with the use of external level
shifting and scaling resistors. The desired scale factor for both
multiplication and division can be set using the on-chip +2 V or
+10 V references, or controlled externally to provide simultaneous
multiplication and division. Exponentiation with an m value
from 0.2 to 5 can be implemented with the addition of one or
two external resistors.
Direct log ratio computation is possible by using only the log
ratio and output sections of the chip. Access to the multiple
summing junctions adds further to the flexibility of the AD538.
Finally, a wide power supply range of ±4.5 V to ±18 V allows
operation from standard ±5 V, ±12 V and ±15 V supplies.
The AD538 is available in two accuracy grades (A and B) over
the industrial (25°C to +85°C) temperature range and one
grade (S) over the military (55°C to +125°C) temperature
range. The device is packaged in an 18-lead TO-118 hermetic
side-brazed ceramic DIP. A-grade chips are also available.
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| AD538BD | 功能描述:IC MULT/DIV REALTIME ACU 18-CDIP RoHS:否 類別:集成電路 (IC) >> 線性 - 模擬乘法器，除法器 系列:- 標(biāo)準(zhǔn)包裝:25 系列:HA 功能:模擬乘法器 位元/級(jí)數(shù):四象限 封裝/外殼:16-CDIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-CDIP 側(cè)面銅焊 包裝:管件 |
| AD538BDZ | 功能描述:IC MULT/DIV REALTIME ACU 18-CDIP RoHS:是 類別:集成電路 (IC) >> 線性 - 模擬乘法器，除法器 系列:- 標(biāo)準(zhǔn)包裝:25 系列:HA 功能:模擬乘法器 位元/級(jí)數(shù):四象限 封裝/外殼:16-CDIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-CDIP 側(cè)面銅焊 包裝:管件 |
| AD538SD | 功能描述:IC MULT/DIV REALTIME ACU 18-CDIP RoHS:否 類別:集成電路 (IC) >> 線性 - 模擬乘法器，除法器 系列:- 標(biāo)準(zhǔn)包裝:25 系列:HA 功能:模擬乘法器 位元/級(jí)數(shù):四象限 封裝/外殼:16-CDIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-CDIP 側(cè)面銅焊 包裝:管件 |
| AD538SD/883B | 功能描述:增效器/分頻器 MULT/DIV ACU IC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| AD5390BCP-3 | 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8/16-CHANNEL, 14/12-BIT, 3V/5V VOLTAGE OUT DAC - Bulk |
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