FEATURES
DESCRIPTION
.HIGH OUTPUT SWINGS, up to j::145V (35821
The 3580 series is the first family of I ntegrated
Circuit
operational
amplifiers
which will provide
output voltage swings of up to ::t 145V .
.LARGE LOAD CURRENTS, up to j::6OmA (35801
.DIFFICUL T TO DAMAGE, automatic thermal shutoff
.REDUCES SOURCE LOADING, 1O11 n Input Z
.PRESERVES SYSTEM ACCURACY,
11OdB CM R 2OpA bias current
The monolithic F--ET input stage has low bias currents
(20pA) which minimizes the offset voltages caused by
the bias current and the large resistance normally
associated with high voltage circuits.
The 3580 series is packaged in a TO-3 package which
will dissipate over 3W of power without a heat sink
and 4.5W with a suitable heat sink.
The input stage is protected against overvoltages and
the output stage is protected against short-circuitsto-ground. A special thermal sensing circuit prevents
damage to the amplifier
by automatically
shutting
the amplifier
down when too much power is being
dissipated.
International Airport Industrial Park -P .0. 8ox 11400 -Tucson. Arizona 85734 -Tel. [6021 746-1111 -Twx: 910-952.1111 .Cable. 88RCORP -Telex: 66-6491
@
SBOS166
1975
Burr-Brown
Corporation
PDS-313D
Printed in U.S.A. May, 1987
TION
advantages
not normally
available
in modular
or discrete
component
units. The amplifiers
have thermal sensing
and shut-off
circuitry
which automatically
turns the
amplifier
off when the internal
temperature
reaches
approximately
150°C. This is accomplished
by sensing
the substrate temperature
and deactivating
the input
stage current source when the temperature
reaches a
critical level. As this happens, the output load current
limits at a safe value and the amplifier's quiescent current
decreases.
If the cause of the abnormal
power dissipation
is
continuous
(such as a short circuit across the load) the
output current may remain at a low value or oscillate
between two values d-ependi-ng on the amount of power
being dissipated and the heat sink conditions seen by the
amplifier.
In either case, the amplifier
will not sustain
internal damage and will return to normal operation
within a few seconds after the abnormal
condition
is
removed.
The incorporation
of thermal sensing and shut-off in the
amplifier will allow the use of a smaller heat sink than
would otherwise be required. This is due to the fact that
the amplifier
will protect itself and does not require a
massive heat sink for protection
under abnormal
conditions.
Another unique feature of the 3580 family is the thorough
testing of the unit receiver. In addition
to the normal
tests, all amplifiers are 100% tested for input protection at
the full rated differential voltage ( +v " -V ,( ). Each unit is
also 100% tested for output
maximum
short circuit
to common
at
supply voltage.
The 3581 and 3582 have a unique feature
important
in many high voltage applications.
that is
In these
two models the input bias current is virtually independent
of the applied common-mode
voltage. This is accomplished by the true cascode input stage which keeps the
drain-to-source
voltage of the input transistors constant
as the common-mode
voltage changes.
OPERATION
FROM A SINGLE SUPPLY
It may be desirable in some applications
to operate the
amplifiers from a single supply. The circuit in Figure 3
illustrates a typical application.
) +300VOC
~
RO
eo = ej [
RO
+R
II
~
R
v
r
+
e.
+10V ~ ej ~ +290V
l21
I~+
'
+5V ~ eo ~ +290V
t RL-eo
on the input and output
It should be noted that when the 3581 and 3582 amplifiers
are operated from a single supply, the output stage, which
is still short-circuit-current
limited
and thermally
I
':1;
FIGURE
N ote that there are restrictions
voltages (ei and e,,) which are necessary in order to keep
the amplifier circuits operating in a linear manner.
3. Operation
from a Single Supply.
The 3580 family. of integrated
circuit
high voltage
amplifiers
provides performance
which previously was
only available in bulky modular packages (see Figures I
and 2). In addition
to the smaller size and inherent
reliability,
the integrated circuit construction
offers other
protected,
is not protected
against short circuits
to
ground (the 3580 will still be short circuit protected under
these conditions).
When the amplifiers are operated from
a single supply, the voltage across one of the output
transistors is high enough that secondary breakdown is a
consideration.
The output current must be limited in
order to prevent damage. This can be done by keeping the
load resistor larger than 5kO for the 3582 and greater
than IkO for the 3581.
ELECTRICAL
Typical
at TCASE
= -:
25°C max unless otherwise
note~
3580J
MODELS
I POWER
SUPPLY
I Voltage.
:!:Vcc
I Quiescent
ISVDC to
Current.
i RATED
I Voltage.
OUTPUT
:!:'iVCCI
Current,
3581J
max
-5 \,-
:32VDC
c3SVDC
J::10mA
DC,min
min
!:70VDC to
ta
:!:150VDC
:!:65mA
:!:75VDC
:!:8mA
IOVDC to
:27VDC
:30VDC
J:60mA
:100mA
Current, Short Circuit
~pacitance,
max
3582J
;:65VDC to
:!:145VDC
:!:15mA
:!:25mA
to
:!:7OVDC
:!:3OmA
:!:SOmA
1OnF
i OPEN-LOO~
No Load. DC
Rated Load. DC. min
106dB
112dB
86dB
94dB
118dB
100dB
FREOUENCYRESPONSE
Unity Gain Bandwidth.
Full Power Bandwidth
Slew Rate
Small Signal
SMHz. min
100kHz
60kHz
30kHz
15V/IJs
20V/!ls
12!ls
20V/,,5
SettlinqTime.O.1%
~ INPUT OFFSET VOl TAGE
Initial
at TCASE = +25°C.
Drift vs Temp,
Drift vs Supply
Drift vs Time
I INPUT
Initial
BIAS
max
max
Voltage
:!:10mV
:t3mV
:!:3mV
:!:30IJV/OC
12S}lV/OC
:!:25IJV/OC
100IJV/V
20}lV/V
20IJVN
100IJV/mc
SO}lV/mo
50IJV/mo
CURRENT
at ICASE = +25°C.
max
-50pA
I
Drift vs Temp
Drift vs Supply
Voltage
20pA
-20pA
doubles
every
O.5pA/\t
10°C
02pA/v
02pA/V
rlNPUT OFFSET CURRENT
INPUT
Voltage
OSpA/V
10oC
1011!110pF
101111
Common-mode
NOISE
Voltage
001 Hz to 10Hz. p-p
10Hzto1kHz.
Current 001Hz
INPUT
02pA/V
02pA/V
IMPEDANCE
Differential
INPUT
every
doubles
Drift vs Temp
Drift vs Supply
:!:20pA
max
I
Initial at TCASE = +25°C.
rms
to 10Hz. p-p
VOlTAGE
SIJV
1!JV
17IJV
1pA
03pA
17IJV
03pA
RANGE
Max Safe Differential
Voltage(1)
Max Safe Common-mode
Voltage
Common-mode
Voltage.
Operation
Common-mode
Rejection
TEMPERATURE
Case
-vcc
;0 -VCr:
-VD
+V{
Linear
Vcc -!1v
86dB
Vcc
-10 v
110dB
Vcc -10
110dB
0°C to 70°C
.55°C to +125°C
55°C to +150°C
Specification
Operating
Storage
NOTE.
1 On Models 3581 and 3582 the inputs
may be damaged
by pulses at pins 5 or 6 with
dV /dt?1 V /nsl. Any possible damage can be eliminated by limiting the input current to 150mA
with external resistors in series with those pins. No external protection
is needed for slower
voltage
The information
BURR-BROWN
provided
herein is believed to be reliable; however,
assumes no responsibility
for inaccuracies
or omissions.
BURR-BROWN
assumes no responsibility
for the use of this information,
and all use of such information
shall be entirely at the user's own risk.
Prices and specifications
are subject to change without notice. No patent
rights or licenses to any of the circuits described
herein are implied or
granted to any third party. BURR-BROWN
does not authorize or warrant
any BURR-BROWN
product for use in life support devices and/or systems.
TYPICAL
PERFORMANCE
TCASE = +25°C
and :tVcc
CURVES
max unless otherwise
noted
-50 -25
0
25
50
75 100 125
Case Temperature roC I
OPEN-LOOP
GAIN VS SUPPL y
VOL T AGE A T MAX LOAD
MAXIMUM
POWER
DISSIPATION
11)
"0
[~
0:
ta
(!J
c.
O
O
-'
0,
0)
c.
O
10
100
1k
10k 100k 1M 10M
Frequency
+
~
40
iHzi
50
60
70
80
90 100 110
TOTAL INPUT NOISE VOLTAGE
VS SOURCE RESISTANCE
-25
O
25
50
Temperature
75100
125
~
-Vcc
=:t75V
-
-~!
901
-j~t~
Vcc = :!:35\i
~
50
~
30
101
I
100
1k
Frequency
10k
(HZi
75
100
125
Temperature
,0(
104
100k
105
106
10;
Resistance
(01
TOTALLOWFREOUENCYINPUT
NOISE
VS
SOURCE
RESISTANCE
108
VSFREOUENCY
110!
70
50
POWER SUPPL Y REJECTION
~-VCC=:t150V
m
~
a:
~
<.)
103
Source
(oGI
COMMON-MODE
REJECTION
VS FREQUENCY
130
25
Power Supply 1%of maxi
1/1.1
150
PACKAGE OPTION ADDENDUM
www.ti.com
10-Mar-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
3581J
NRND
TO-3
LMF
Pins Package Eco Plan (2)
Qty
8
18
Pb-Free (RoHS
Exempt)
Lead/Ball Finish
Call TI
MSL Peak Temp (3)
N / A for Pkg Type
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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Addendum-Page 1
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