Datasheet

5
Maxim Integrated
Micropower, Single-Supply, UCSP/SOT23
Comparator + Precision Reference ICs
MAX9038–MAX9043/
MAX9050–MAX9053
ELECTRICAL CHARACTERISTICS—B Grade (1% Initial Accuracy) (Note 12) (continued)
(V
CC
= 5V, V
EE
= 0V, V
CM
= 0V, V
PU
= 1.8V, R
PU
= 10kΩ, I
OUT
= 0A, I
REF
= 0A, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.) (Note 2)
Note 2: All devices are 100% production tested at T
A
= +25°C. Limits over the extended temperature range are guaranteed by
design.
Note 3: Supply voltage range guaranteed by PSRR test on comparator and line regulation of REF.
Note 4: V
OS
is defined as the center of the input-referred hysteresis band.
Note 5: For the comparators with the inverting input (IN-) uncommitted.
Note 6: Input bias current is the average of the inverting and noninverting input bias currents.
Note 7: Not production tested. Guaranteed by design.
Note 8: Guaranteed by CMRR test.
Note 9: V
OVERDRIVE
is beyond the offset and hysteresis determined trip point.
Note 10: Temperature coefficient is measured by the box method; i.e., the maximum ΔV
REF
is divided by the maximum ΔT.
Note 11: Thermal hysteresis is defined as the change in V
REF
at +25°C before and after cycling the device from T
MIN
to T
MAX
.
Note 12: MAX9038/MAX9039 has an initial accuracy of ±0.4%.
Typical Operating Characteristics
(V
CC
= 5V, V
EE
= 0V, V
CM
= 0V, V
PU
= 1.8V, R
PU
= 10kΩ, I
OUT
= 0A, I
REF
= 0A, T
A
= +25°C, unless otherwise noted.)
0
10
30
20
50
40
60
-40 0-20 20 40 60 80
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051
SUPPLY CURRENT vs. TEMPERATURE
MAX9038 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
V
CC
= 5.0V
V
IN+
> V
IN-
V
CC
= 2.7V
0
10
30
20
50
40
60
-40 0-20 20 40 60 80
MAX9042/MAX9043/MAX9052/MAX9053
SUPPLY CURRENT vs. TEMPERATURE
MAX9038 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
V
CC
= 5.0V
V
IN+
> V
IN-
V
CC
= 2.7V
0.01 0.1 1 10 100 1000
200
150
100
50
0
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051
SUPPLY CURRENT vs. SWITCHING FREQUENCY
MAX9038 toc03
SWITCHING FREQUENCY (kHz)
SUPPLY CURRENT (µA)
V
CC
= 5.0V
V
CC
= 2.7V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX
UNIT
MAX9038–MAX9043 +50 +200
Line Regulation
ΔV
REF
/
ΔV
CC
2.5V ≤ V
CC
≤ 5.5V
MAX9050–MAX9053 +50 +200
µV/V
Sourcing: 0µA ≤ I
REF
≤ 500µA 2 4
Load Regulation
ΔV
REF
/
ΔI
REF Sinking: -500µA ≤ I
REF
≤ 0µA 3.5 6
µV/µA
Output Short-Circuit Current I
SC
V
REF
= V
EE
or V
CC
4mA
Thermal Hysteresis (Note 11) T
HYST
130 ppm
Long-Term Stability 1000h at T
A
= +25°C 100 ppm
Ripple Rejection
ΔV
REF
/
ΔV
CC
V
CC
= 5V ±100mV, f = 120Hz 84 dB
Turn-On Settling Time t
R
( V
RE F
) To V
REF
= 1% of final value 200 µs
Capacitive Load Stability
Range (Note 7)
C
L
( V
RE F
) 0 4.7 nF