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3656KG の電気的特性と機能

3656KGのメーカーはBurr-Brown Corporationです、この部品の機能は「Transformer Coupled ISOLATION AMPLIFIER」です。


製品の詳細 ( Datasheet PDF )

部品番号 3656KG
部品説明 Transformer Coupled ISOLATION AMPLIFIER
メーカ Burr-Brown Corporation
ロゴ Burr-Brown Corporation ロゴ 




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3656KG Datasheet, 3656KG PDF,ピン配置, 機能
® 3656
Transformer Coupled
ISOLATION AMPLIFIER
FEATURES
q INTERNAL ISOLATED POWER
q 8000V ISOLATION TEST VOLTAGE
q 0.5µA MAX LEAKAGE AT 120V, 60Hz
q 3-PORT ISOLATION
q IMR: 125dB REJECTION AT 60Hz
q 1" x 1" x 0.25" CERAMIC PACKAGE
DESCRIPTION
The 3656 was the first amplifier to provide a total
isolation function, both signal and power isolation, in
integrated circuit form. This remarkable advancement
in analog signal processing capability was accom-
plished by use of a patented modulation technique and
miniature hybrid transformer.
Versatility and performance are outstanding features
of the 3656. It is capable of operating with three
APPLICATIONS
q MEDICAL
Patient Monitoring and Diagnostic
Instrumentation
q INDUSTRIAL
Ground Loop Elimination and
Off-ground Signal Measurement
q NUCLEAR
Input/Output/Power Isolation
completely independent grounds (three-port isolation).
In addition, the isolated power generated is available
to power external circuitry at either the input or
output. The uncommitted op amps at the input and the
output allow a wide variety of closed-loop configura-
tions to match the requirements of many different
types of isolation applications.
Input
Demodulator
Pulse
Generator
+
Input
ISO
Power
Modulator
Rectifiers
and
Filters
Output
Demodulator
Rectifiers
and
Filters
Output
ISO
Power
SBOS132
This product is covered by the following United States patents: 4,066,974; 4,103,267; 4,082,908. Other patents pending may also apply upon the
allowance and issuance of patents thereon. The product may also be covered in other countries by one or more international patents corresponding
to the above-identified U.S. patents.
InternationalAirportIndustrialPark • MailingAddress:POBox11400,Tucson,AZ85734 • StreetAddress:6730S.TucsonBlvd.,Tucson,AZ 85706 • Tel:(520)746-1111 • Twx:910-952-1111
Internet:http://www.burr-brown.com/ • FAXLine:(800)548-6133(US/CanadaOnly) • Cable:BBRCORP • Telex:066-6491 • FAX:(520)889-1510 • ImmediateProductInfo:(800)548-6132
©1987 Burr-Brown Corporation
PDS-1403G
3656Printed in U.S.A. January, 1997
®

1 Page





3656KG pdf, ピン配列
SPECIFICATIONS (CONT)
ELECTRICAL
At +25°C, V± = 15VDC and 15VDC between P+ and P–, unless otherwise specified.
PARAMETER
CONDITIONS
FREQUENCY RESPONSE
±3dB Response
Full Power
Slew Rate
Settling Time
Small Signal
Direction Measured at Output
to 0.05%
OUTPUT
Noise Voltage (RTI)
Residual Ripple(9)
fB = 0.05Hz to 100Hz
fB = 10Hz to 10kHz
POWER SUPPLY IN, at P+, P–
Rated Performance
Voltage Range(10)
Ripple Current(9)
Quiescent Current(11)
Current vs Load Current(12)
Derated Performance
Average
vs Current from +V, –V, V+, V–
ISOLATED POWER OUT, At +V, –V, V+, V– pins(13)
Voltage, No Load
15V Between P+ and P–
Voltage, Full Load
±5mA (10mA sum) Load(12)
Voltage vs Power Supply
vs Supply Between P+ and P–
Ripple Voltage(9)
No Load
Full Load
±5mA Load
TEMPERATURE RANGE
Specification 3656AG, BG
3656HG, JG, KG
Operation(10)
Storage(14)
3656AG, BG, HG, JG, KG
MIN TYP
+0.1, –0.04
30
1.3
500
√(5)2 + (22/G1)2
(5)2 + (11/G1)2
5
15
8.5
10
14
0.7
8.5 9
78
0.66
40
80
–25
0
–55
–65
MAX
16
25
18
9.5
9
200
+85
+70
+100
+125
UNITS
kHz
kHz
V/µs
µs
µVp-p
µVrms
mVp-p
VDC
VDC
mAp-p
mA/DC
mA/mA
V
V
V/V
mVp-p
mVp-p
°C
°C
°C
°C
NOTES: (1) Ratings in parenthesis are between P- (pin 20) and O/P Com (pin 17). Other isolation ratings are between I/P Com and O/P Com or I/P Com and P–.
(2) See Performance Curves. (3) May be trimmed to zero. (4) If output swing is unipolar, or if the output is not loaded, specification same as if external supply were used.
(5) Includes effects of A1 and A2 offset voltages and bias currents if recommended resistors used. (6) Versus the sum of all external currents drawn from V+, V–, +V,
–V (= ISO). (7) Effects of A1 and A2 bias currents and offset currents are included in Offset Voltage specifications. (8) With respect to I/P Com (pin 3) for A1 and with
respect to O/P Com (pin 17) for A2. CMR for A1 and A2 is 100dB, typical. (9) In configuration of Figure 3. Ripple frequency approximately 750kHz. Measurement bandwidth
is 30kHz. (10) Decreases linearly from 16VDC at 85°C to 12VDC at 100°C. (11) Instantaneous peak current required from pins 19 and 20 at turn-on is 100mA for slow
rising voltages (50ms) and 300mA for fast rises (50µs). (12) Load current is sum drawn form +V, –V, V+, V– (= IISO). (13) Maximum voltage rating at pins 1 and 4 is ±18VDC;
maximum voltage rating at pins 12 and 16 is ±18VDC. (14) Isolation ratings may degrade if exposed to 125°C for more than 1000 hours or 90°C for more than 50,000
hours.
Example of the ratings for 3-port continuous isolation.
3500VDC
20
3 1000VDC
3500VDC
17
PACKAGE INFORMATION
PRODUCT
PACKAGE
PACKAGE DRAWING
NUMBER(1)
3656
20-Lead ISO Omni
102A
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
PIN DESIGNATIONS
NO. DESCRIPTION
1 +V
2 MOD Input
3 Input DEMOD COM
4 –V
5 Balance
6 A1 Inverting Input
7 A1 Noninverting Input
8 Balance
9 A1 Output
10 Input DEMOD
NO. DESCRIPTION
11 Output DEMOD
12 V–
13 A2 Noninverting Input
14 A2 Inverting Input
15 A2 Output
16 V+
17 Output DEMOD COM
18 No Pin
19 P+
20 P–
ABSOLUTE MAXIMUM RATINGS
Supply Without Damage ...................................................................... 16V
Input Voltage Range Using Internal Supply ......................................... ±8V
Input Voltage Range Using External Supply ................................... Supply
Continuous Isolation Voltage(1) ..................................... 3500, (1000) VDC
Storage Temperature ...................................................... –65°C to +125°C
Lead Temperature, (soldering, 10s) .............................................. +300°C
NOTE: (1) Ratings in parenthesis are between P– (pin 20) and O/P Com
(pin 17). Other isolation ratings are between I/P Com and O/P Com or I/P
Com and P–.
®
3 3656


3Pages


3656KG 電子部品, 半導体
THEORY OF OPERATION
Details of the 3656 are shown in Figure 1. The external
connections shown, place it in its simplest gain configura-
tion —unity gain, noninverting. Several other amplifier gain
configurations and power isolation configurations are
possible. See Installation and Operating Instructions and
Applications sections for details.
Isolation of both signal and power is accomplished with a
single miniature toroid transformer with multiple windings.
A pulse generator operating at approximately 750kHz pro-
vides a two-part voltage waveform to transformer, T1. One
part of the waveform is rectified by diodes D1 through D4 to
provide the isolated power to the input and output stages
(+V, –V and V+, V–). The other part of the waveform is
modulated with input signal information by the modulator
operating into the V2 winding of the transformer.
The modulated signal is coupled by windings W6 and W7 to
two matched demodulators—one in the input stage and one
in the output stage—which generate identical voltages at
their outputs, pins 10 and 11 (Voltages identical with respect
to their respective commons, pins 3 and 17). In the input
stage the input amplifier, A1, the modulator and the input
demodulator are connected in a negative feedback loop. This
forces the voltage at pin 6 (connect as shown in Figure 1) to
equal the input signal voltage applied at pin 7. Since the
input and the output demodulators are matched and produce
identical output voltages, the voltage at pin 11 (referenced to
pin 17, the output common) is equal to the voltage at pin 10
(referenced to pin 3, the input common). In the output stage,
output amplifier A2 is connected as a unity gain buffer, thus
the output voltage at pin 15 equals the output demodulator
voltage at pin 11. The end result is an isolated output voltage
at pin 15 equal to the input voltage at pin 7 with no galvanic
connection between them.
Several amplifier and power connection variations are pos-
sible:
1. The input stage may be connected in various operational
amplifier gain configurations.
2. The output stage may be operated at gains above unity.
3. The internally generated isolated voltages which provide
power to A1 and A2 may be overridden and external
supply voltages used instead.
Versatility and its three independent isolated grounds allow
simple solutions to demanding analog signal conditioning
problems. See the Installation and Operating Instructions
and Applications sections for details.
INSTALLATION AND
OPERATING INSTRUCTIONS
The 3656 is a very versatile device capable of being used in
a variety of isolation and amplification configurations. There
are several fundamental considerations that determine con-
figuration and component value constraints:
1. Consideration must be given to the load placed on the
resistance (pin 10 and pin 11) by external circuitry. Their
output resistance is 100kand a load resistor of 2Mor
greater is recommended to prevent a voltage divider
loading effect in excess of 5%.
5 10
BAL
BAL
86
100k7
1
+V
+
VIN
4
–V
3
Input
Demodulator
W6
92
A1 Modulator
T1
Pulse
W1 Generator
P+ 19
P– 20
0.47µF
+
15VDC
14
Output
W7 Demodulator 11 13
100k
15
A2
+
VOUT
D1
W2
W3
D2
V+
16
0.47µF
D3 D4
W4 W5
V–
12
0.47µF
17
FIGURE 1. Block Diagram.
®
3656
6

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部品番号部品説明メーカ
3656KG

Transformer Coupled ISOLATION AMPLIFIER

Burr-Brown Corporation
Burr-Brown Corporation


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