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Analog Devices Semiconductor Electronic Components Datasheet

AD203SN Datasheet

10 kHz Bandwidth Isolation Amplifier

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AD203SN pdf
r.ANALOG
WDEVICES
Rugged, Military Temperature Range,
10 kHz Bandwidth Isolation Amplifier
AD203SN I
FEATURES
Rugged Design:
C
Environmental Test Methods
1004 (Moisture Resistance)
1010 Condition B (Temperature Cycling,
-55°C to +125°C)
2002 Condition B (Mechanical Shock@ 1,500 g
for 0.5 ms)
2004 (Lead Integrity)
2007 Condition A (Variable Frequency Vibration
@20g)
2015 (Resistance to Solvents)
Reliable Design: Conforms to Stringent Quality and
Reliability Standards
Characterized to the Full Military Temperature Range
-55°C to +125°C Rated Performance
10 kHz Full Power Bandwidth
Low Nonlinearity: ±0.025% max
Wide Output Range: ±10 V min (Into a 2.5 k!l Load)
High CMV Isolation: 1500 V RMS Continuous
Isolated Power: ±15 V DC@ ±5 mA
Small Size: 2.23"x0.83"x0.65"
56.6 mmx21.1 mmx16.5 mm
Uncommitted Input Amplifier
Two-Port Isolation Through Transformer Coupling
ISOLATION AMPLIFIERS
Provide Galvanic Isolation Between the Input and
Output Stages
Eliminate Ground Loops
Reject High Common Mode Voltages and Noise
Protect Sensitive Electronic Signal Processing Systems
from Transient and/or Fault Voltages
APPLICATIONS INCLUDE
Engine Monitoring and Control
Mobile Multichannel Data Acquisition Systems
Instrumentation and/or Control Signal Isolation
Current Shunt Measurements
High Voltage Instrumentation Amplifier
FUNCTIONAL BLOCK DIAGRAM
MODULATOR
DEMODULATOR
INPUT PORT~'I~OUTPUT PORT
The AD203SN provides total galvanic isolation between the in-
put and output stages of the isolation amplifier, including the
power supplies, through the use of internal transformer cou-
pling. The functionally complete design of the AD203SN, pow-
ered by a single + 15 V de supply, eliminates the need for an
external de/de converter. This permits the designer to minimize
the necessary circuit overhead and consequently reduce the over-
all design and component costs. Furthermore, the power con-
sumption, nonlinearity and drift characteristics of transformer
coupled devices are vastly superior to those achievable with
other isolation technologies, without sacrificing bandwidth or
noise performance. Finally, the AD203SN will maintain its high
operating performance even under sustained common mode
stress.
The design of the AD203SN emphasizes maximum flexibility
and ease of use in a broad range of applications where signals
must be measured or transmitted under high CMV conditions.
The AD203SN has a ± 10 V output range, an uncommitted in-
put amplifier, an output buffer, a 10 kHz full power bandwidth
and a front-end isolated power supply of ± 15 V de (CT; ± 5 mA.
GENERAL DESCRIPTION
The AD203SN is designed and built expressly for use in hostile
operating environments. The AD203SN is also an integral mem-
ber of Analog Devices' AD200 Series of low cost, high perfor-
mance, transformer coupled isolation amplifiers. Technological
innovations in circuit design, transformer construction, surface
mount components and assembly automation have resulted in a
rugged, economical, military temperature range isolator that
either retains or improves upon the key performance specifica-
tions of the AD202/AD204 line.


Analog Devices Semiconductor Electronic Components Datasheet

AD203SN Datasheet

10 kHz Bandwidth Isolation Amplifier

No Preview Available !

AD203SN pdf
-\
AD203SN-SPECIFICAJIQNS (typical@ +25°C, Vs= +15 Vde ~\iless otherwise noted)
GAIN
Range
Error
vs. Temperature1
-55°C to + 125°C
-55°C to +25°C
-40°C to + 25°C
- 25°C to + 25°C
+ 25°C to + 125°C
vs. Time
vs. Supply Voltage
Nonlinearity2, G= 1 VN, ±10 V Output Swing
1 VN-100 VN
±1% typ (±4% max)
50 ppm/°C
100 ppm/°C
80 ppm/°C
60 ppm/°C
5 ppm/°C
± 50 ppm/1000 hours
±0.005%N
±0.012% (±0.025% max)
,!
I
INPUT VOLTAGE RATINGS
Linear Differential Range
Max CMV Input to Output
AC, 60 Hz, Continuous
Continuous (ac and de)
Common Mode Rejection (CMR) @ 60 Hz
Rs '.'S 100 !1 (HI & LO Inputs), G = 1 VN
G = 100 VN
Rs '.'S 1 k!1 (Input, HI, LO or Both), G = 1-100 VN
Leakage Current, Input to Output@ 240 V rms, 60 Hz
±lOV
1500 V rms
±2000 V peak
106dB
120dB
96dB (min)
4.0µA rms (max)
INPUT IMPEDANCE
Differential (G = 1 VN)
Common Mode
1012 n
2 G!1ll4.5 pF
INPUT BIAS CURRENT
Initial @ + 25°C
Current @ + 125°C
30 pA
30 nA
INPUT DIFFERENCE CURRENT
Initial @ + 25°C
Current @ + 125°C
±5 pA
±5 nA
INPUT NOISE
Voltage, 0.1 Hz to 100 Hz
Voltage, Frequency> 200 Hz
4 µV p-p
50 nV/VHz
FREQUENCY RESPONSE
Bandwidth (VoUT '.'S 20 V p--p, G = 1-100 VN)
Slew Rate
Settling Time to ±0.10%
10 kHz
0.5 V/µs
160 µs
OFFSET VOLTAGE, REFERRED TO INPUT (RTI)
Initial @ + 25°C (Adjustable to Zero)
vs. Temperature (-55°C to + 125°C)
± (5 + 25/G) mV (max)
± (6 + 100/G) µVl°C
RATED OUTPUT3
Voltage (Out HI to Out LO) @ RL = 5.0 k!1
Current
Maximum Capacitive Load4
Output Resistance
Output Ripple, 100 kHz Bandwidth
5 kHz Bandwidth
±10 V (min)
±4mA
270 pF
0.2 n
15 mV p-p
0.7 mV rms
ISOLATED POWER OUTPUT5
Voltage, No Load
Accuracy
Current (Either Output)
Re~ulation, No Load to Full Load
Ripple, 100 kHz Bandwidth, Full Load
POWER SUPPLY
Voltage, Rated Performance
Voltage, Operating Performance6
Current, No Load (Vs= +15 V de)
±15 v
±5%
5mA
5%
llO mV p--p
+ 15 V de (±5%)
+ 12 V de to + 16 V de
20mA
.
-2-
Rev. B


Part Number AD203SN
Description 10 kHz Bandwidth Isolation Amplifier
Maker Analog Devices
Total Page 14 Pages
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