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參數(shù)資料
| 型號： | AD2S93 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Cost LVDT-to-Digital Converter |
| 中文描述： | 低成本LVDT的，數(shù)字轉換器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 349K |
| 代理商： | AD2S93 |
AD2S93
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
a
Low Cost
LVDT-to-Digital Converter
FUNCTIONAL BLOCK DIAGRAM
DEMODIN
CLKOUT
DEMOD OUT
ERROR
AMP
LOS
LATCHES
FREQUENCY
SHAPING
VCO
PHASE
SENSITIVE
DEMODULATOR
C1
C2
R2
VEL
VCO GAIN
UP-DOWN
COUNTER
REFERENCE
(PRIMARY
EXCITATION)
DIFFERENTIAL
(SECONDARY
VOLTAGE)
R4
REF
A
B
LOS
GAIN
V
DD
OVR
UNR
NULL
CS
DATA
SCLK
ACERROR
AC RATIO
BRIDGE
DIFF
DECODE
LOGIC
C3
AD2S93
INTIN
R3
SERIAL
INTERFACE
DIR
R5
R1
C4
R6
R7
FEATURES
Full Function Monolithic LVDT-to-Digital Converter
Absolute Serial Data Output
Uncommitted Differential Input
Repeatability
Remote Diagnostics
14-Bit Resolution
Industrial Temperature Range
28-Pin PLCC
Low Power
APPLICATIONS
Industrial Gauging
Industrial Process Control
Linear Positioning Systems
Linear Actuator Control
Automotive Motion Sensing and Control
Torque Sensing Conditioner
AC Strain Gages Conditioning
Avionics
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.
GENERAL DESCRIPTION
The AD2S93 is a complete 14-bit resolution tracking LVDT-to-
digital converter. A Type II tracking loop is employed to track
the A–B input and produce a digital output equal to (A–B)/
(REF/2), where REF is a fixed amplitude ac reference phase co-
herent with the A–B input. This allows the measurement of any
2-, 3-, 4- and 5-wire LVDT or linear amplitude modulated in-
put. The operating frequency range is from 360 Hz to 10 kHz
with user definable bandwidth set externally within a range of
45 Hz to 1250 Hz.
The AD2S93 has a 16-bit serial output. The MSB (LOS), read
first, indicates a loss of the signal A, B, or reference inputs to the
converter or transducer. The second and third MSBs are flags
indicating whether [–REF/2 (UNR)
≤
A–B
≤
+REF/2 (OVR]) is
outside the linear operating range of the converter. The dis-
placement data is presented as 13-bit offset binary giving a
±
12-
bit operating range. LOS, OVR and UNR are pinned out on
the device, in addition a NULL flag is available which is set
when (A–B) = 0.
Absolute displacement information is accessed when
CS
is taken
LO followed by the application of an external clock (SCLK)
with a maximum rate of 2 MHz. Data is read MSB first. When
CS
is high the DATA output is high impedance; this allows
daisy chaining of more than one converter onto a common bus.
The A, B differential input allows the user to scale the A, B in-
puts between 1 and 10. This enables the user to accurately set
up the inputs matching the REF input to the DIFF output. The
DIFF output is the resultant A–B. The AD2S93 operates using
±
5 V
±
5% power supplies and is fabricated on Analog Devices’
linear compatible CMOS process (LC
2
MOS). The (LC
2
MOS)
is a mixed technology process that combines precision bipolar
circuits with low power logic.
PRODUCT HIGHLIGHTS
Complete LVDT-to-Digital Interface.
The AD2S93 pro-
vides the complete solution for digitizing LVDT signals to 14-
bit resolution.
Serial 16-Bit Output Data.
One 16-bit read from the
AD2S93 determines input signal continuity (LOS), over and
underrange detection and 13 bits of offset binary displacement
information.
High Accuracy Grade in Low Cost Package.
0.05% and
0.1% integral linearity over the full –40
°
C to +85
°
C operating
temperature range.
Uncommitted Differential Input.
Allows configuration of 2-,
3-, 4- and 5-wire LVDTs.
Multiple Converter Interfacing.
High impedance data out-
put and a simple three-wire interface reduces cabling and elimi-
nates bus contention.
Low
Power
. 70 mW power consumption (typ).
相關PDF資料 |
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| AD2S93AP | Aluminum Electrolytic Capacitor; Capacitor Type:Industrial Grade; Voltage Rating:350VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:160uF RoHS Compliant: Yes |
| AD2S93BP | Aluminum Electrolytic Capacitor; Capacitor Type:Industrial Grade; Voltage Rating:150VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:16uF RoHS Compliant: Yes |
| AD2S99 | Aluminum Electrolytic Capacitor; Capacitor Type:Industrial Grade; Voltage Rating:250VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:16uF RoHS Compliant: Yes |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD2S93AP | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost LVDT-to-Digital Converter |
| AD2S93BP | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost LVDT-to-Digital Converter |
| AD2S99 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Programmable Oscillator |
| AD2S99AP | 功能描述:IC OSC SINUSOIDAL 20KHZ 20-PLCC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器（TCXO） 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝 |
| AD2S99APZ | 功能描述:IC OSC SINUSOIDAL 20KHZ 20-PLCC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器（TCXO） 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝 |
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