DATASHEET
ISL28915
Nano Power, Push/Pull Output Comparator
The
ISL28915
is a nano power comparator optimized for
low-power applications. This device is designed for
single-supply operation from 1.8V to 5.5V and typically
consumes 500nA of supply current. These devices also feature
a push/pull output stage with rail-to-rail input and output
swing (RRIO), allowing for maximum battery usage.
The combination of small footprint, low power, single supply,
and rail-to-rail operation makes them ideally suited for all
battery operated devices.
The ISL28915 features an enable pin and is offered in the
6 Ld SOT-23 package. The device operates over the -40°C to
+125°C temperature range.
FN8343
Rev.0.00
Jul 16, 2012
Features
• Low Active Current . . . . . . . . . . . . . . . . . . . . . . . . . . 600nA Max
• Low Disable Current. . . . . . . . . . . . . . . . . . . . . . . . . . 20nA Max
• Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150µs
• Rail-to-Rail Input/Output Voltage Range (RRIO)
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
• Operating Temperature Range. . . . . . . . . . .-40°C to +125°C
Applications
•
•
•
•
•
•
Battery-Powered/Portable Systems
Telemetry and Remote Systems
Alarm and Monitoring Systems
Oscillator Circuits
Window Comparators
Threshold Detectors/Discriminators
V
REF
IN-
520
5V
R
L
=
∞
-
SUPPLY CURRENT (nA)
V+
ISL28915
GND
500
480
460
440
420
400
380
360
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
C
1
10µF
IN+
+
2kΩ
R
L
AUDIO SIGNAL PEAK DETECTOR
SUPPLY VOLTAGE (V)
FIGURE 1. TYPICAL APPLICATION CIRCUIT
FIGURE 2. SUPPLY CURRENT vs SUPPLY VOLTAGE
FN8343 Rev.0.00
Jul 16, 2012
Page 1 of 10
ISL28915
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL28915FH6Z-T7
BENA
PART
MARKING
TEMP RANGE
(°C)
-40°C to +125°C
PACKAGE
TAPE & REEL
(Pb-Free)
SOT23-6
PKG.
DWG. #
P6.064A
NOTES:
1. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-
free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for
ISL28915.
For more information on MSL please see techbrief
TB363.
Pin Configuration
ISL28915FH6Z
(6 LD SOT-23)
TOP VIEW
OUT 1
GND 2
IN+ 3
+ -
6 V+
5 EN
4 IN-
Pin Descriptions
ISL28915FH6Z
(6 LD SOT-23)
1
2
3
4
5
6
PIN NAME
OUT
GND
IN+
IN-
EN
V+
EQUIVALENT
CIRCUIT
Circuit 3
Circuit 4
Circuit 1
Circuit 1
Circuit 2
Circuit 4
Comparator output
GROUND terminal
Comparator non-inverting input
Comparator inverting input
Comparator enable pin; Logic “1” selects the enabled state: Logic “0” selects the disabled
state
Positive power supply
V+
V+
IN-
IN+
GND
LOGIC
PIN
GND
CIRCUIT 2
CIRCUIT 3
V+
CAPACITIVELY
COUPLED
ESD CLAMP
DESCRIPTION
V+
OUT
GND
GND
CIRCUIT 4
CIRCUIT 1
FN8343 Rev.0.00
Jul 16, 2012
Page 2 of 10
ISL28915
Absolute Maximum Ratings
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.75V
Supply Turn-On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/µs
Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Maximum Differential Input Voltage . . . . . . . . . . . GND - 0.5V to V+ + 0.5V
Min/Max Input Voltage . . . . . . . . . . . . . . . . . . . . . . GND - 0.5V to V+ + 0.5V
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite
ESD Tolerance
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-C) . . . . . . . . . . . . . . . . . . 150V
Charged Device Model (Tested per JESD22-C110D) . . . . . . . . . . . . . 1kV
Latch-up (Tested per JESD-78B; Class 2, Level A) . . . . . . . . . . . . . . . at +125°C
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
6 Ld SOT-23 Package (Notes 4, 5) . . . . . . .
239
108
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see
TB493
Recommended Operating Conditions
Ambient Temperature Range (T
A
) . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
5. For
JC
, the “case temp” location is taken at the package top center.
Electrical Specifications
-40°C to +125°C.
PARAMETER
V
OS
V+ = 5V, GND = 0V, V
CM
= 2.5V, T
A
= +25°C, unless otherwise specified. Boldface limits apply over
MIN
(Note 6)
-2
-2.5
MAX
(Note 6)
2
2.5
-3
25
67
1.2
31
100
5
98
DESCRIPTION
Input Offset Voltage
CONDITIONS
TYP
-0.2
UNIT
mV
mV
pA
pA
pA
pA
V
dB
dB
dB
I
OS
Input Offset Current
-25
-67
I
B
Input Bias Current
-31
-100
CMIR
CMRR
Common Mode Input Range
Common-Mode Rejection Ratio
Established by CMRR test
V
CM
= 0.5V to 3.5V
0
72
70
V
CM
= 0V to 5V
PSRR
Power Supply Rejection Ratio
V+ = 1.8V to 5.5V
60
77
70
100
dB
dB
V
OUT
Maximum Output Voltage Swing
R
L
terminated to V+/2
Supply Current, Enabled
Output low, R
L
= 10kΩ
Output high, R
L
= 10kΩ
V
EN
= V+ - 0.3V
4.930
35
4.990
500
70
mV
V
I
S,ON
600
900
nA
nA
nA
nA
V
pF
I
S,OFF
Supply Current, Disabled
V
EN
= GND + 0.3V
0.25
20
50
V
SUPPLY
C
IN
Supply Voltage Range
Input Capacitance
1.8
6
5.5
ENABLE INPUT
V
ENH
V
ENL
I
EN-H,L
Enable Pin High Level
Enable Pin Low Level
Enable Pin Input Current
V
EN
= 0V, 5V
-80
-200
2.2
V+ - 0.3
GND + 0.3
80
200
V
V
nA
nA
FN8343 Rev.0.00
Jul 16, 2012
Page 3 of 10
ISL28915
Electrical Specifications
-40°C to +125°C. (Continued)
PARAMETER
V+ = 5V, GND = 0V, V
CM
= 2.5V, T
A
= +25°C, unless otherwise specified. Boldface limits apply over
MIN
(Note 6)
MAX
(Note 6)
DESCRIPTION
CONDITIONS
TYP
UNIT
TIMING
t
PD
±
t
R
/t
F
Propagation Delay Low to High and High to
Low
Output Rise/Fall Time
C
L
= 10pF, 20mV Overdrive
C
L
= 10pF
150
11
260
20
µs
µs
NOTE:
6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
Typical Performance Curves
520
500
SUPPLY CURRENT (nA)
480
460
440
420
400
380
360
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
R
L
=
∞
+PROPAGATION DELAY (µs)
250
R
L
= 10kΩ
R
L
TO GND
200
OVERDRIVE = 20mV
150
100
R
L
TO V+
50
OVERDRIVE = 100mV
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 3. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 4. PROPAGATION DELAY vs SUPPLY VOLTAGE (RISING EDGE)
180
-PROPAGATION DELAY (µs)
160
140
120
100
80
60
40
20
0
1.5
R
L
= 10kΩ
R
L
TO V+
R
L
TO GND
+PROPAGATION DELAY (µs)
600
V+ = 5V
500
400
R
L
TO GND
300
V+ = 2V
200
100
0
R
L
= 10kΩ
OVERDRIVE = 20mV
R
L
TO V+
R
L
TO V+
OVERDRIVE = 100mV
R
L
TO GND
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1
10
OVERDRIVE (mV)
100
1000
SUPPLY VOLTAGE (V)
FIGURE 5. PROPAGATION DELAY vs SUPPLY VOLTAGE (FALLING EDGE)
FIGURE 6. PROPAGATION DELAY vs OVERDRIVE (RISING EDGE)
FN8343 Rev.0.00
Jul 16, 2012
Page 4 of 10
ISL28915
Typical Performance Curves
400
350
-PROPAGATION DELAY (µs)
300
250
200
150
100
50
0
1
R
L
TO GND
10
OVERDRIVE (mV)
100
V+ = 2V
R
L
TO V+
V+ = 5V
(Continued)
30
R
L
= 10Ω
R
L
= 10kΩ
OUTPUT CURRENT (mA)
25
SINKING
20
SOURCING
15
10
1000
5
1.5
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
5.5
FIGURE 7. PROPAGATION DELAY vs OVERDRIVE (FALLING EDGE)
FIGURE 8. SHORT CIRCUIT CURRENT vs SUPPLY VOLTAGE
2.5
2.3
ENABLE THRESHOLD (V)
ENABLE TIME (µs)
900
880
860
840
820
800
780
1.5
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
760
1.5
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
2.1
1.9
1.7
1.5
1.3
1.1
0.9
FIGURE 9. ENABLE THRESHOLD VOLTAGE vs SUPPLY VOLTAGE
FIGURE 10. ENABLE TO OUTPUT DELAY TIME vs SUPPLY VOLTAGE
9
8
DISABLE TIME (µs)
650
600
SUPPLY CURRENT (nA)
550
500
450
400
350
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
R
L
=
∞
7
6
5
4
3
2
1
1.5
300
-60
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
100
120
140
FIGURE 11. ENABLE LOW TO OUTPUT TURN-OFF TIME vs SUPPLY
VOLTAGE
FIGURE 12. SUPPLY CURRENT vs TEMPERATURE, V+, GND = ±2.5V
FN8343 Rev.0.00
Jul 16, 2012
Page 5 of 10
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