UNISONIC TECHNOLOGIES CO., LTD
UTL331/A
LOW POWER SINGLE VOLTAGE
COMPARATOR
DESCRIPTION
The UTC
UTL331/A
consists of a low power voltage comparator
designed specifically for operation from a single supply over a wide
range of voltages. Operation from split power supplies is also
possible.
This comparator also has a unique characteristic that the input
common-mode voltage range includes ground even though it is
operated from a single power supply voltage.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Wide single supply voltage range or dual supplies +2V~+36V or
±1V~±18V
* Very low supply current (0.2mA) independent of supply voltage
(1mW /comparator at +5V)
* Low input bias current: 25nA typ.
* Low input offset current: ±5nA typ.
* Low input offset voltage: ±1mV typ
* Input common-mode voltage range includes ground.
* Low output saturation voltage: 250mV typ.(I
OUT
=4mA).
* Differential input voltage range equal to the supply voltage.
*TTL, DTL, ECL, CMOS Compatible outputs.
ORDERING INFORMATION
Ordering Number
Lead Free
UTL331L-AF5-R
UTL331AL-AF5-R
Halogen Free
UTL331G-AF5-R
UTL331AG-AF5-R
Package
SOT-25
SOT-25
Packing
Tape Reel
Tape Reel
MARKING
UTL331
UTL331A
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 5
QW-R104-005.B
UTL331/A
PIN CONNECTIONS
(top view)
UTL331
LINEAR INTEGRATED CIRCUIT
UTL331A
-
+
BLOCK DIAGRAM
V
CC
+
3.5μA
100μA
3.5μA
100μA
IN(+)
GND
IN(-)
GND
Output
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R104-005.B
UTL331/A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
CC
V
I(DIFF)
V
IN
LINEAR INTEGRATED CIRCUIT
RATING
UNIT
Supply Voltage
±18 or 36
V
Differential Input Voltage
±36
V
Input Voltage
-0.3 ~ +36
V
Output Short-Circuit to Ground (Note 2)
Infinite
Power Dissipation
P
D
380
mW
Junction Temperature
T
J
150
°C
Operating Temperature
T
OPR
-40 ~ +125
°C
Storage Temperature
T
STG
-65 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Short-circuit from the output to V
CC
can cause excessive heating and eventual destruction. The maximum
output current is approximately 20mA, independent of the magnitude of V
CC
.
THARMAL DATA
(T
J
=150°C, T
A
=25°C)
PARAMETER
junction to Ambient
SYMBOL
θ
JA
RATING
320
UNIT
°C/W
ELECTRICAL CHARACTERISTICS
(V
CC
=5.0V, All voltage referenced to GND, T
A
=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
1
5
mV
T
A
=+25°C
Input Offset Voltage (Note 1)
V
I(OFF)
T
MIN
≤T
A
≤
T
MAX
9
mV
Differential Input Voltage
V
I(DIFF)
(Note 4)
V
CC
V
Large Signal Voltage Gain
Gv
V
CC
=15V, R
L
=15k, V
OUT
=1~ 11V
50
200
V/mV
0
V
CC
-1.5
V
T
A
=+25°С
Input Common Mode Voltage
V
I(CM)
Range (Note 3)
T
MIN
≤T
A
≤
T
MAX
0
V
CC
-2
V
T
A
=+25°C
250
400
mV
V
I(DIFF)
=1V,
Low Level Output Voltage
V
OL
V
CC
= V
OUT
=30V
T
MIN
≤
T
A
≤T
MAX
700
mV
25
250
nA
T
A
=+25°С
Input Bias Current (Note 2)
I
I(BIAS)
T
MIN
≤
T
A
≤T
MAX
400
nA
5
50
nA
T
A
=+25°С
Input Offset Current
I
I(OFF)
T
MIN
≤
T
A
≤T
MAX
150
nA
0.4
0.7
mA
V
CC
=5V, no load
Supply Current
I
CC
V
CC
=36V, no load
0.7
0.9
mA
Output Sink Current
I
SINK
V
I(DIFF)
=-1V, V
OUT
=1.5V
6
16
mA
T
A
=+25°C
0.1
50
nA
V
I(DIFF)
=1V,
High Level Output Current
I
OH
V
CC
= V
OUT
=30V
T
MIN
≤
T
A
≤T
MAX
1
μA
Response Time
t
R
R
L
=5.1kΩ to V
CC
(Note 5)
1.3
μs
Large Signal Response Time
t
REL
V
IN
=TTL,V
REF
=+1.4V,R
L
=5.1KΩ~ V
CC
300
ns
Notes: 1. At output switch point, Vo=1.4V, R
S
=0Ω with V
CC
from 5V ~ 30V and over the full input common-mode
range (0V ~ V
CC
1.5V).
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially
constant, independent of the state of the output, so no loading charge exists on the reference or input lines.
3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by
more than 0.3V.The upper end of the common-mode voltage range is V
CC
+ -1.5V,but either or both inputs
can go to +30V without damage.
4. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage
remains within the common-mode range the comparator will provide a proper output state.
The low input voltage state must not be less than -0.3V (or 0.3V below the negative power supply, if used).
5. The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals
300ns can be obtained.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R104-005.B
UTL331/A
TYPICAL CHARACTERISTICS
Supply Current vs. Supply Voltage
1.0
0.8
0.6
0.4
T
A
=-40°С
T
A
=+25°С
T
A
=+125°С
6
5
4
3
2
1
0
0
-50
-100
40
LINEAR INTEGRATED CIRCUIT
Response Time for vs. Input Overdrives
- Negative Transition
Input overdrive:5mV
+5V
20mV
eI -
+
100mV
5.1kΩ
eo
0.2
R=
∞
0
0
10
20
Supply Voltage (V)
30
T
A
=+25°С
0
0.5
1
1.5
2
Time (µS)
Response Time for vs. Input Overdrives
- Positive Transition
6
5
Input overdrive:100mV
Input Current vs. Supply Voltage
80
T
A
=-40°С
60
4
3
2
5mV
40
T
A
=+25°С
1
0
100
20mV
+5V
20
T
A
=+125°С
50
0
20
30
40
0
T
A
=+25°С
eI
-
+
5.1kΩ
eo
0
10
0.5
1
1.5
2
Supply Voltage (V)
Output Saturation Voltage vs. Output Current
Out of saturation
10
0
Time (µS)
10
1
T
A
=+125°С
10
-1
T
A
=-40°С
10
-2
T
A
=+25°С
10
-3
10
-2
10
-1
10
0
10
1
10
2
Output Sink Current (mA)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R104-005.B
UTL331/A
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R104-005.B
京公网安备 11010802033920号
EEWORLD
