Datasheet
MAX9107/MAX9108/MAX9109
25ns, Dual/Quad/Single, Low-Power,
TTL Comparators
________________________________________________________________ Maxim Integrated Products 1
TOP VIEW
1
2
3
4
5
6
7
8
SO
N.C.
OUT
GND
LE
V
CC
IN+
IN-
N.C.
MAX9109
1
2
3
4
5
6
7
8
SOT23/SO
V
CC
OUTB
INB-
INB+
OUTA
INA-
INA+
GND
MAX9107
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTD
IND-
IND+
GNDV
CC
INA+
INA-
OUTA
MAX9108
INC+
INC-
OUTCOUTB
INB-
INB+
TSSOP/SO
A
D
B
C
GND
IN-IN+
16V
CC
5 LE
OUT
MAX9109
SC70/SOT23
2
34
Pin Configurations
19-2045; Rev. 2; 1/07
General Description
The MAX9107/MAX9108/MAX9109 dual/quad/single,
high-speed, low-power voltage comparators are
designed for use in systems powered from a single
+5V supply. Their 25ns propagation delay (with 10mV
input overdrive) is achieved with a power consumption
of only 1.75mW per comparator. The wide input com-
mon-mode range extends from 200mV below ground
to within 1.5V of the positive supply rail.
The MAX9107/MAX9108/MAX9109 outputs are TTL-
compatible, requiring no external pullup circuitry.
These easy-to-use comparators incorporate internal
hysteresis to ensure clean output switching even when
the devices are driven by a slow-moving input signal.
The MAX9107/MAX9108/MAX9109 are higher-speed,
lower-power, lower-cost upgrades to industry-standard
comparators MAX907/MAX908/MAX909. The MAX9109
features an output latch but does not have comple-
mentary outputs.
The dual MAX9107 is available in both 8-pin SO and
SOT23 packages. The quad MAX9108 is available in
14-pin TSSOP and SO packages while the single
MAX9109 is available in an ultra-small 6-pin SC70
package, a space-saving 6-pin SOT23 package and
an 8-pin SO package.
Applications
Features
♦ 25ns Propagation Delay
♦ 350µA (1.75mW) Supply Current Per Comparator
♦ Single 4.5V to 5.5V Supply Operation
♦ Wide Input Range Includes Ground
♦ Low 500µV Offset Voltage
♦ Internal Hysteresis Provides Clean Switching
(2mV)
♦ TTL-Compatible Outputs
♦ Internal Latch (MAX9109 only)
♦ Space-Saving Packages:
6-Pin SC70 (MAX9109)
8-Pin SOT23 (MAX9107)
14-Pin TSSOP (MAX9108)
Ordering Information
PART
PIN-
PACKAGE
TOP
MARK
PKG
CODE
MAX9107EKA-T 8 SOT23-8 AAIB K8-5
MAX9107ESA 8 SO — S8-2
MAX9108EUD 14 TSSOP — U14-1
MAX9108ESD 14 SO — S14-1
MAX9109EXT-T 6 SC70-6 AAU X6S-1
MAX9109EUT-T 6 SOT23-6 AARU U6-1
MAX9109ESA 8 SO — S8-2
Battery-Powered Systems
A/D Converters
Line Receivers
Threshold Detectors/
Discriminators
Sampling Circuits
Zero-Crossing Detectors
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Note: All devices are specified over the -40°C to +85°C operat-
ing temperature range.