19-2045; Rev. 0; 5/01
25ns, Dual/Quad/Single, Low-Power,
TTL Comparators
General Description
Features
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.
ꢀ 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)
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.
ꢀ TTL-Compatible Outputs
ꢀ Internal Latch (MAX9109 only)
ꢀ No Phase Reversal for Overdriven Inputs
ꢀ Space-Saving Packages:
6-Pin SC70 (MAX9109)
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.
8-Pin SOT23 (MAX9107)
14-Pin TSSOP (MAX9108)
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.
Ordering Information
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
MAX9107EKA-T
MAX9107ESA
MAX9108EUD
MAX9108ESD
MAX9109EXT-T
MAX9109EUT-T
MAX9109ESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 SOT23-8
8 SO
AAIB
—
Applications
Battery-Powered Systems Threshold Detectors/
14 TSSOP
14 SO
—
Discriminators
—
A/D Converters
Sampling Circuits
Line Receivers
6 SC70-6
6 SOT23-6
8 SO
AAU
AARU
—
Zero-Crossing Detectors
Pin Configurations
TOP VIEW
8
7
6
5
1
2
3
4
8
7
6
5
OUTA
INA-
1
2
3
4
5
6
7
14 OUTD
13 IND-
12 IND+
11 GND
10 INC+
1
2
3
4
N.C.
OUT
GND
LE
V
V
OUTA
INA-
INA+
GND
MAX9107
CC
CC
MAX9109
OUT
GND
IN+
1
2
3
6
5
4
V
CC
MAX9109
OUTB
INB-
IN+
IN-
D
C
A
B
INA+
LE
V
CC
MAX9108
INB+
N.C.
INB+
INB-
IN-
SO
SOT23/SO
9
8
INC-
SC70/SOT23
OUTB
OUTC
TSSOP/SO
________________________________________________________________ Maxim Integrated Products
1
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.