Austin Semiconductor, Inc.
Voltage Comparator
AVAILABLE AS MILITARY
SPECIFICATIONS
• SMD 5962-86877
• M38510/10304B
• MIL-STD-883, 1.2.1
GND
INPUT+
INPUT-
V
-
oltag
Volta g e
Comparator
AS111
PIN ASSIGNMENT
(Top View)
8 Pin Ceramic DIP (C008)
1
2
3
4
8
7
6
5
V
+
OUTPUT
BALANCE/
STROBE
BALANCE
FEATURES
• Operates from single 5V supply
• Input current: 150 nA max. over temperature
• Offset current: 20 nA max. over temperature
• Differential input voltage range: ±30V
• Power consumption: 135 mW at ±15V
14 Pin Ceramic DIP (C014)
NC
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
NC
NC
V
+
NC
OUTPUT
BALANCE/
STROBE
OPTIONS
• Packages
8 pin Ceramic DIP
14 pin Ceramic DIP
20 pin Ceramic LCC
8 Lead Metal Can
• Temperature Ranges
Extended (-55
o
C to +125
o
C)
MIL-STD-883 paragraph 1.2.1
(-55
o
C to +125
o
C)
MARKINGS
C008
C014
E020
TO08
XT
/883
INPUT+
INPUT-
NC
V
-
BALANCE
8 Lead Metal Can (TO08)
V
+
8
GND
1
INPUT+
2
3
4
7
OUTPUT
6
BALANCE/STROBE
GENERAL DESCRIPTION
The AS111 is a voltage comparator that has input currents
nearly a thousand times lower than other similar devices like. It
is also designed to operate over a wider range of supply
voltages: from standard ±15V op amp supplies down to the
single 5V supply used for IC logic. Their output is compatible
with RTL, DTL and TTL as well as MOS circuits. Further, they
can drive lamps or relays, switching voltages up to 50V at
currents as high as 50 mA.
Both the inputs and the outputs of the AS111 can be
isolated from system ground, and the output can drive loads
referred to ground, the positive supply or the negative supply.
Offset balancing and strobe capability are provided and
outputs can be wire OR’ed. Although slower than some
devices (200 ns response time vs 40 ns), this device is also
much less prone to spurious oscillations.
INPUT-
5
BALANCE
V
-
20 Pin Ceramic LCC (E020)
For more products and information
please visit our web site at
www.austinsemiconductor.com
AS111
Rev. 1.5 7/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
Austin Semiconductor, Inc.
TYPICAL APPLICATIONS
3
oltag
Volta g e
Comparator
AS111
AS111
Rev. 1.5 7/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
Austin Semiconductor, Inc.
TYPICAL APPLICATIONS (CONTINUED)
3
oltag
Volta g e
Comparator
AS111
NOTE:
Do Not Ground Strobe Pin
NOTE 2:
Typical input current is 50pV with inputs strobed off.
NOTE 3:
Pin connections shown on schematic diagram and typical applications are for TO08 metal can package.
ABSOLUTE MAXIMUM RATINGS*
,5
Total Supply Voltage (V
84
).............................................................36V
Output to Negative Supply Voltage (V
74
)....................................50V
Ground to Negative Supply Voltage (V
14
)...................................30V
Differential Input Voltage.............................................................±30V
Input Voltage
4
................................................................................±15V
Output Short Circuit Duration..................................................10 sec
Lead Temperature (Soldering, 10 sec).......................................260°C
Voltage at Stobe Pin................................................................V
+
-5V
*Stresses greater than those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
these or any other conditions above those indicated in the
operation section of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods
may affect reliability.
Note 4:
This rating applies for ±15 supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit
is equal to the negative supply voltage or 30V below the positive supply, whichever is less.
Note 5:
The maximum junction temperature of the AS111 is 150°C. For operating at elevated temperatures, devices in the TO08 package must
be derated based on a thermal resistance of 165°C/W, junction to ambient, or 20°C/W, junction to case. The thermal resistance of the dual-in-line
package is 110°C/W, junction to ambient.
AS111
Rev. 1.5 7/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
3
Austin Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS
6
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Voltage Gain
Response Time
8
7
oltag
Volta g e
Comparator
AS111
MIN
TYP
0.7
4.0
60
40
200
200
0.75
2.0
0.2
1.5
5.0
10
4.0
20
150
13.0
0.4
0.5
6.0
5.0
MAX
3.0
10
100
UNITS
mV
nA
nA
V/mV
ns
V
mA
nA
mV
nA
nA
V
V
µA
mA
mA
CONDITIONS
T
A
= 25°C, R
S
< 50K
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
V
IN
< -5mV, I
OUT
= 50mA, T
A
= 25°C
Saturation Voltage
Strobe ON Current
9
T
A
= 25°C
7
Output Leakage Current V
IN
> 5mV, I
OUT
= 35V, T
A
= 25°C, I
STROBE
= 3mA
Input Offset Voltage
R
S
< 50k
7
Input Offset Current
Input Bias Current
Input Voltage Range
Saturation Voltage
V+ = 15V, V- = -15V, Pin 7 Pull-Up May Go To 5V
V > 4.5V, V = 0, V
IN
< -6mV, I
OUT
< 8mA
+
-
-14.5
13.8, -14.7
0.23
0.1
5.1
4.1
Output Leakage Current V
IN
> 5mV, I
OUT
= 35V
Positive Supply Current
T
A
= 25°C
Negative Supply Current T
A
= 25°C
Note 6:
These specifications apply for VS=±15V and Ground pin at ground, and -55°C < T
A
< +125°C, unless otherwise stated.
The offset voltage, offset current and bias current specifications apply for any supply voltage from a single 5V supply up to
±15V supplies.
Note 7:
The offset voltages and offset currents given are the maximum values required to drive the output within a volt of
either supply with a 1mA load. Thus, these parameters define an error band and take into account the worst-case effects of
voltage gain and R
S
.
Note 8:
The response time specified (see definitions) is for a 100 mV input step with 5 mV overdrive.
Note 9:
This specification gives the range of current which must be drawn from the strobe pin to ensure the output is properly
disabled. Do not short the strobe pin to ground; it should be current driven at 3 to 5 mA.
AS111
Rev. 1.5 7/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4
Austin Semiconductor, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS
oltag
Volta g e
Comparator
AS111
AS111
Rev. 1.5 7/03
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
5
