AD204JN Analog Devices Inc, AD204JN Datasheet

IC, ISOLATION AMPLIFIER, 5KHZ, DIP-10

AD204JN

Manufacturer Part Number
AD204JN
Description
IC, ISOLATION AMPLIFIER, 5KHZ, DIP-10
Manufacturer
Analog Devices Inc
Type
Isolation Amplifierr
Datasheet

Specifications of AD204JN

No. Of Amplifiers
1
Isolation Voltage
750Vrms
Gain Non-linearity Max
0.05%
Amplifier Case Style
DIP
No. Of Pins
10
Input Offset Voltage
15mV
Bandwidth
5kHz
Rohs Status
RoHS non-compliant
Amplifier Type
Isolation
Number Of Circuits
4
Gain Bandwidth Product
5kHz
Current - Input Bias
30pA
Voltage - Input Offset
15000µV
Current - Output / Channel
2mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
38-DIP (0.500", 12.70mm), 11 Leads
Number Of Channels
1
Number Of Elements
1
Common Mode Rejection Ratio
130dB
Voltage Gain Db
40dB
Input Resistance
2000MOhm
Input Bias Current
30pA
Rail/rail I/o Type
No
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
11
Package Type
PDIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Supply
-
Output Type
-
Voltage - Supply, Single/dual (±)
-
-3db Bandwidth
-
Slew Rate
-
Lead Free Status / Rohs Status
Not Compliant
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 that
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 AD202 and AD204 are general purpose, two-port, trans-
former-coupled isolation amplifiers that may be used in a broad
range of applications where input signals must be measured,
processed, and/or transmitted without a galvanic connection.
These industry standard isolation amplifiers offer a complete
isolation function, with both signal and power isolation provided
for in a single compact plastic SIP or DIP style package. The
primary distinction between the AD202 and the AD204 is that
the AD202 is powered directly from a 15 V dc supply while the
AD204 is powered by an externally supplied clock, such as the
recommended AD246 Clock Driver.
The AD202 and AD204 provide total galvanic isolation between
the input and output stages of the isolation amplifier through
the use of internal transformer-coupling. The functionally com-
plete AD202 and AD204 eliminate the need for an external,
user-supplied dc-to-dc converter. This permits the designer
to minimize the necessary circuit overhead and consequently
reduce the overall design and component costs.
The design of the AD202 and AD204 emphasizes maximum
flexibility and ease of use, including the availability of an
uncommitted op amp on the input stage. They feature a bipolar
± 5 V output range, an adjustable gain range of from 1V/V to
100 V/V, ± 0.025% max nonlinearity (K grade), 130 dB of
CMR, and the AD204 consumes a low 35 mW of power.
The functional block diagrams can be seen in Figures 1a and 1b.
REV. D
FEATURES
Small Size: 4 Channels/lnch
Low Power: 35 mW (AD204)
High Accuracy:
High CMR: 130 dB (Gain = 100 V/V)
Wide Bandwidth: 5 kHz Full-Power (AD204)
High CMV Isolation:
Isolated Power Outputs
Uncommitted Input Amplifier
APPLICATIONS
Multichannel Data Acquisition
Current Shunt Measurements
Motor Controls
Process Signal Isolation
High Voltage Instrumentation Amplifier
(Signal and Power)
0.025% Max Nonlinearity (K Grade)
2000 V pk Continuous (K Grade)
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
PRODUCT HIGHLIGHTS
The AD202 and AD204 are full-featured isolators offering
numerous benefits to the user:
Small Size: The AD202 and AD204 are available in SIP and
DIP form packages. The SIP package is just 0.25" wide, giving
the user a channel density of four channels per inch. The isolation
barrier is positioned to maximize input to output spacing. For
applications requiring a low profile, the DIP package provides a
height of just 0.350".
High Accuracy: With a maximum nonlinearity of ± 0.025%
for the AD202K/AD204K (± 0.05% for the AD202J/AD204J)
and low drift over temperature, the AD202 and AD204 provide
high isolation without loss of signal integrity.
Low Power: Power consumption of 35 mW (AD204) and
75 mW (AD202) over the full signal range makes these isolators
ideal for use in applications with large channel counts or tight
power budgets.
Wide Bandwidth: The AD204’s full-power bandwidth of 5 kHz
makes it useful for wideband signals. It is also effective in appli-
cations like control loops, where limited bandwidth could result
in instability.
Excellent Common-Mode Performance: The AD202K/
AD204K provide ± 2000 V pk continuous common-mode isola-
tion, while the AD202J/AD204J provide ± 1000 V pk continuous
common-mode isolation. All models have a total common-mode
input capacitance of less than 5 pF inclusive of power isolation.
This results in CMR ranging from 130 dB at a gain of 100 dB to
104 dB (minimum at unity gain) and very low leakage current
(2 mA maximum).
Flexible Input: An uncommitted op amp is provided at the
input of all models. This provides buffering and gain as required,
and facilitates many alternative input functions including filtering,
summing, high voltage ranges, and current (transimpedance) input.
Isolated Power: The AD204 can supply isolated power of
± 7.5 V at 2 mA. This is sufficient to operate a low-drift input
preamp, provide excitation to a semiconductor strain gage, or
power any of a wide range of user-supplied ancillary circuits.
The AD202 can supply ± 7.5 V at 0.4 mA, which is sufficient to
operate adjustment networks or low power references and op
amps, or to provide an open-input alarm.
Low Cost, Miniature
Isolation Amplifiers
AD202/AD204
© Analog Devices, Inc., 2002
www.analog.com

Related parts for AD204JN

AD204JN Summary of contents

Page 1

... High Voltage Instrumentation Amplifier GENERAL DESCRIPTION The AD202 and AD204 are general purpose, two-port, trans- former-coupled isolation amplifiers that may be used in a broad range of applications where input signals must be measured, processed, and/or transmitted without a galvanic connection. These industry standard isolation amplifiers offer a complete isolation function, with both signal and power isolation provided for in a single compact plastic SIP or DIP style package ...

Page 2

AD202/AD204–SPECIFICATIONS Model GAIN Range Error vs. Temperature vs. Time vs. Supply Voltage 1 Nonlinearity ( V/V) Nonlinearity vs. Isolated Supply Load INPUT VOLTAGE RATINGS Input Voltage Range Max lsolation Voltage (Input to Output) AC, 60 Hz, Continuous Continuous ...

Page 3

... AD202KY AD202JN AD202KN AD204JY AD204KY AD204JN AD204KN CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD202/AD204 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 4

AD202/AD204 DIFFERENCES BETWEEN THE AD202 AND AD204 The primary distinction between the AD202 and AD204 is in the method by which they are powered: the AD202 operates directly from while the AD204 is powered by a non- ...

Page 5

AD246 Clock Driver. The AD246 is a compact, inexpensive clock driver that can be used to obtain the required clock from a single 15 V supply. Alternatively, the circuit shown in Figure 4 (essentially an AD246) can be used. In ...

Page 6

AD202/AD204 Adjustments. When gain and zero adjustments are needed, the circuit details will depend on whether adjustments are to be made at the isolator input or output, and (for input adjustments) on the input circuit used. Adjustments are usually best ...

Page 7

FREQUENCY – Hz Figure 10b. AD202 Dynamics and Noise. Frequency response plots for the AD202 and AD204 are given in Figure 11. Since neither isolator is ...

Page 8

AD202/AD204 Using Isolated Power. Both the AD202 and the AD204 provide ±7.5 V power outputs referenced to input common. These may be used to power various accessory circuits that must operate at the input common-mode level; the input zero adjustment ...

Page 9

CHANNEL 0 CHANNEL 0.1” GRID 100pF Figure 16b. Synchronization. Since AD204s operate from a common clock, synchronization is inherent. AD202s will ...

Page 10

AD202/AD204 High Compliance Current Source. In Figure 19, an isolator is used to sense the voltage across current-sensing resistor R allow direct feedback control of a high voltage transistor or FET used as a high compliance current source. Since the ...

Page 11

AD202/AD204 SIP Package 2.08 (52.8) MAX AD202/AD204 FRONT VIEW 0.20 (5.1) 0.15 (3.81) TYP BOTTOM VIEW 0.05 (1.3)TYP 1.30 (33.0) 0.143 (3.63) NOTE: PIN 31 IS PRESENT ONLY ON AD202 ...

Page 12

AD202/AD204 Revision History Location 10/02—Data Sheet changed from REV REV. D. Deleted FUNCTIONAL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . ...

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