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NE5521D View Datasheet(PDF) - Philips Electronics

Part Name
Description
Manufacturer
NE5521D
Philips
Philips Electronics Philips
NE5521D Datasheet PDF : 5 Pages
1 2 3 4 5
Philips Semiconductors Linear Products
LVDT signal conditioner
Product specification
NE/SA/SE5521
DESCRIPTION
The NE/SA/SE5521 is a signal conditioning circuit for use with
Linear Variable Differential Transformers (LVDTs) and Rotary
Variable Differential Transformers (RVDTs). The chip includes a low
distortion, amplitude-stable sine wave oscillator with programmable
frequency to drive the primary of the LVDT/RVDT, a synchronous
demodulator to convert the LVDT/RVDT output amplitude and phase
to position information, and an output amplifier to provide
amplification and filtering of the demodulated signal.
FEATURES
Low distortion
Single supply 5V to 20V, or dual supply ±2.5V to ±10V
Oscillator frequency 1kHz to 20kHz
Capable of ratiometric operation
Low power consumption (182mV typ)
APPLICATIONS
LVDT signal conditioning
RVDT signal conditioning
LPDT signal conditioning
Bridge circuits
PIN CONFIGURATIONS
F, N Packages
AMP OUT 1
+IN 2
–IN 3
LVDT IN 4
DEMOD OUT 5
SYNC 6
GND 7
N.C. 8
N.C. 9
18 V+
17 CT
16 VREF
15 FEEDBACK
14 OSC
13 OSC
12 VREF/2
11 RT
10 N.C.
TOP VIEW
D1 Package
AMP OUT 1
+IN 2
–IN 3
LVDT IN 4
DEMOD OUT 5
SYNC 6
GND 7
N.C. 8
16 V+
15 CT
14 VREF
13 FEEDBACK
12 OSC
11 OSC
10 VREF/2
9 RT
TOP VIEW
NOTE:
1. SOL — released in large SO package only.
ORDERING INFORMATION
DESCRIPTION
18-Pin Plastic Dual In-Line Package (DIP)
16-Pin Small Outline Large (SOL) Package
18-Pin Plastic Dual In-Line Package (DIP)
18-Pin Ceramic Dual In-Line Package (CERDIP)
16-Pin Ceramic Dual In-Line Package (CERDIP)
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
ORDER CODE
NE5521N
NE5521D
SA5521N
SE5521F
SA5521D
DWG #
0407A
0171B
0407A
0583A
0582B
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC
Supply voltage
Split supply voltage
Operating temperature range
NE5521
TA
SA5521
SE5521
TSTG
Storage temperature range
PD
Power dissipation1
NOTES:
1. For derating, see typical power dissipation versus load curves (Figure 1).
RATING
+20
±10
0 to 70
–40 to +85
–55 to +125
–65 to +125
910
UNIT
V
V
°C
°C
°C
°C
mW
August 31, 1994
901
853-0043 13721
 

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