Datasheet

(V
RS+
= -0.1V to +28V, V
CC
= 3.3V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
OUT
= 10kΩ for MAX9928F, T
A
= -40°C to +125°C, unless oth-
erwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Resistance R
OUT
MAX9928F 5 MΩ
MAX9929F 6.4 10 13.6 kΩ
Output High Voltage (Note 6) V
OH
MAX9928F, R
OUT
= 10kΩ
(V
CC
-
0.1)
(V
CC
-
0.45)
V
MAX9929F
(V
CC
-
0.1)
(V
CC
-
0.45)
Minimum Output Voltage (Note 7) V
OL
MAX9929F
T
A
= +25°C 0.25 2.0
mV
T
A
= -40°C to +125°C 15
Minimum Output Current (Note 7) I
OL
MAX9928F
T
A
= +25°C 0.025 0.2
µA
T
A
= -40°C to +125°C 1.5
SIGN COMPARATOR DC ELECTRICAL CHARACTERISTICS
Discharge to Charge Trip Point
(Note 8)
V
TDC
V
RS+
= 3.6V
T
A
= +25°C -1.6 -1.2 -0.5
mV
T
A
= -40°C to +125°C -2.15 -0.15
V
RS+
= -0.1V
T
A
= +25°C -2.5 -1.2 +0.25
T
A
= -40°C to +125°C -4.6 +2.3
Charge to Discharge Trip Point
(Note 8)
V
TCD
V
RS+
= 3.6V T
A
= +25°C -1.8
mV
V
RS+
= -0.1V T
A
= +25°C -1.8
Hysteresis Width V
HYS
V
RS+
= 3.6V, -0.1V T
A
= +25°C 0.6 mV
Common-Mode Input Range
(Note 9)
V
CMR
-0.1 +28 V
Common-Mode Rejection Ratio
(Note 9)
CMRR
2V ≤ V
RS+
≤ 28V 102
dB
-0.1V ≤ V
RS+
≤ +2V 74
Output Low Voltage V
OL
I
SINK
= 100µA 0.03 0.1 V
Output High Voltage V
OH
(V
CC
-
0.01)
(V
CC
-
0.04)
V
Internal Pullup Resistor R
PULL-UP
1 MΩ
POWER SUPPLY
Supply Voltage Range (Note 10) V
CC
T
A
= +25°C 2.5 5.5
V
T
A
= -40°C to +125°C 2.8 5.5
Amplier Power-Supply Rejection
Ratio (Note 10)
PSRR
A
V
RS+
= 3.6V 72 90
dB
V
RS+
= -0.1V 66 86
Comparator Power-Supply
Rejection Ratio
PSRR
C
V
RS+
= 3.6V 90
dB
V
RS+
= -0.1V 86
Quiescent Supply Current I
CC
2V ≤ V
RS+
≤ 28V 20 30
µA
-0.1V ≤ V
RS+
< +2V 115 200
MAX9928/MAX9929 -0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Ampliers
www.maximintegrated.com
Maxim Integrated │ 3
Electrical Characteristics (continued)