SG143
HIGH-VOLTAGE OPERATIONAL AMPLIFIER
DESCRIPTION
The SG143 is a general-purpose high-voltage operational amplifier
featuring operation to
±40V
and overvoltage protection up to
±40V.
Increased slew rate, together with higher common-mode and supply
rejection, insure improved performance at high supply voltages.
Operating characteristics are independent of supply voltage and
temperature. These devices are intended for use in high voltage
applications where common-mode input ranges, high output voltage
swings, and low input currents are required. Also, they are internally
compensated and are pin compatible with industry standard operational
amplifiers.
FEATURES
•
•
•
•
•
±
4.0V to
±
40V supply voltage range
±
37V output voltage swing
±
24V common-mode voltages
Overvoltage protection
Output short circuit protection
HIGH RELIABILITY FEATURES-SG143
♦
Available to MIL-STD-883 and DESC SMD
♦
LMI level "S" processing available
CIRCUIT SCHEMATIC
4/90 Rev 1.1 5/94
Copyright
©
1994
1
11861 Western Avenue
∞
Garden Grove, CA 92641
(714) 898-8121
∞
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.
SG143
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage
SG143 ............................................................................±40V
Input Voltage
SG143 ............................................................................±40V
Differential Input Voltage .................................
±(V
+
+ |V
-
| - 3) V
Note 1. Exceeding these ratings could cause damage to the device.
Output Short Circuit Duration ............................................ 5 sec
Operating Junction Temperature
Hermetic (T, Y-Package) .............................................. 150°C
Storage Temperature Range ............................ -65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) ................... 300°C
THERMAL DATA
T Package:
Thermal Resistance-
Junction to Case
,
θ
JC
................... 25°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
............ 130°C/W
Y Package:
Thermal Resistance-
Junction to Case
,
θ
JC
.................. 50°C/W
Thermal Resistance-
Junction to Ambient
,
θ
JA
........... 130°C/W
Note A. Junction Temperature Calculation: T
J
= T
A
+ (P
D
x
θ
JA
).
Note B. The above numbers for
θ
JC
are maximums for the limiting
thermal resistance of the package in a standard mount-
ing configuration. The
θ
JA
numbers are meant to be
guidelines for the thermal performance of the device/pc-
board system. All of the above assume no ambient
airflow.
RECOMMENDED OPERATING CONDITIONS
(Note 2)
Supply Voltage
SG143 ........................................................................... ±28V
Input Voltage
SG143 ........................................................................... ±28V
Operating Ambient Temperature Range (T
J
)
SG143 ............................................................ -55°C to 125°C
Note 2. Range over which the device is functional.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply for the operating ambient temperature of 25°C and over the recommended supply voltage
range. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
Parameter
Input Offset Voltage
T
A
= T
MIN
to T
MAX
Input Offset Current
T
A
= T
MAX
T
A
= T
MIN
.
Input Bias Current
Large Signal Voltage Gain
Test Conditions
T
A
= T
MIN
to T
MAX
R
L
= 100KΩ, V
OUT
= ±10V
T
A
= T
MIN
to T
MAX
Common-Mode Rejection
Power Supply Rejection
Input Common Mode Range (Peak)
Unity Gain Bandwidth
Slew Rate
R
L
=5KΩ
Supply Current
Output Voltage Swing
Short Circuit Current
SG143
Min. Typ. Max.
2.0
5.0
6.0
1.0
3.0
4.5
7.0
8.0
20
35
100 180
50
80
110
15
100
±24 ±25
1.0
2.5
4.0
±22
20
Units
mV
mV
nA
nA
nA
nA
nA
V/mV
V/mV
dB
µV/V
V
MHz
V/µs
mA
V
mA
4/90 Rev 1.1 2/94
Copyright
©
1994
2
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.
SG143
CHARACTERISTIC CURVES
FIGURE 1.
POWER BANDWIDTH
FIGURE 2.
PEAK OUTPUT VOLTAGE SWING VS. POWER SUPPLY VOLTAGE
FIGURE 3.
OPEN-LOOP FREQUENCY RESPONSE
FIGURE 4.
OUTPUT SHORT-CIRCUIT CURRENT VS. TEMPERATURE
FIGURE 5.
INPUT CURRENT
FIGURE 6.
VOLTAGE GAIN
4/90 Rev 1.1 2/94
Copyright
©
1994
3
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.
SG143
CHARACTERISTIC CURVES
(continued)
FIGURE 7.
SUPPLY CURRENT
FIGURE 8.
UNITY GAIN BANDWIDTH
TYPICAL APPLICATIONS
FIGURE 9 - VOLTAGE OFFSET
NULL CIRCUIT
FIGURE 10 - DIFFERENTIAL AMPLIFIER WITH ±20V
COMMON-MODE INPUT VOLTAGE RANGE
FIGURE 11 - LOW-DRIFT SAMPLE AND HOLD
CONNECTION DIAGRAMS & ORDERING INFORMATION
Package
8-PIN METAL CAN
T - PACKAGE
(See Notes Below)
Part No.
SG143T/883B
SG143T/DESC
SG143T
Ambient
Temperature Range
-55°C to 125°C
-55°C to 125°C
-55°C to 125°C
Connection Diagram
N.C.
OFFSET ADJUST
INVERTING INPUT
NON-INVERTING
INPUT
2
3
4
5
8
1
7
6
V+
OUTPUT
OFFSET ADJUST
V-
8-PIN CERAMIC DIP
Y- PACKAGE
SG143Y/883B
SG143Y/DESC
SG143Y
-55°C to 125°C
-55°C to 125°C
-55°C to 125°C
OFFSET ADJUST
INVERTING INPUT
NON-INVERTING INPUT
V-
1
2
3
4
8
7
6
5
N.C.
V+
OUTPUT
OFFSET ADJUST
Note 1. Contact factory for JAN and DESC product availablity.
2. All packages are viewed from the top.
4/90 Rev 1.1 2/94
Copyright
©
1994
4
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.
