MAX9013ESA [MAXIM]
SC70, 5ns, Low-Power, Single-Supply, Precision TTL Comparators; SC70封装， 5ns的，低功耗，单电源，精密的TTL比较器
| 型号： | MAX9013ESA |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | SC70, 5ns, Low-Power, Single-Supply, Precision TTL Comparators |
| 文件： | 总12页 (文件大小：331K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1932; Rev 1; 1/02
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
General Description
____________________________Features
The MAX9010/MAX9011/MAX9013 single and MAX9012
dual, high-speed comparators operate from a single
4.5V to 5.5V power supply and feature low-current con-
sumption. They have precision differential inputs and
TTL outputs. They feature short propagation delay (5ns,
typ), low-supply current, and a wide common-mode
input range that includes ground. They are ideal for low-
power, high-speed, single-supply applications.
ꢀ Ultra-Fast, 5ns Propagation Delay
ꢀ Low Quiescent Current:
900µA (MAX9010/MAX9011)
1.3mA (MAX9013)
2.4mA (MAX9012)
ꢀ Single-Supply 4.5V to 5.5V Applications
ꢀ Input Range Extends Below Ground
The comparator outputs remain stable through the linear
region when driven with slow-moving or low input-over-
drive signals, eliminating the output instability common
to other high-speed comparators. The input voltage
range extends to 200mV below ground with no output
phase reversal. The MAX9013 features complementary
outputs and both the MAX9011/MAX9013 have a latch
enable input (LE). The MAX9013 is an improved plug-in
replacement for the industry-standard MAX913 and
LT1016/LT1116, offering lower power and higher speed
when used in a single 5V supply application.
ꢀ No Minimum Input Signal Slew-Rate Requirement
ꢀ No Supply-Current Spikes During Switching
ꢀ Stable when Driven with Slow-Moving Inputs
ꢀ No Output Phase Reversal for Overdriven Inputs
ꢀ TTL-Compatible Outputs (Complementary for
MAX9013)
ꢀ Latch Function Included (MAX9011/MAX9013)
For space-critical designs, the single MAX9010 is avail-
able in the tiny 6-pin SC70 package. The single
MAX9011 is available in a space-saving 6-pin SOT23
package. The dual MAX9012 and the single MAX9013
are available in 8-pin µMAX and 8-pin SO packages. All
products in the family are guaranteed over the extended
temperature range of -40°C to +85°C.
ꢀ High-Precision Comparators
0.7mV Input Offset Voltage
3.0V/mV Voltage Gain
ꢀ Available in Tiny 6-Pin SC70 and SOT23 Packages
Ordering Information
PIN-
PACKAGE
TOP
MARK
Applications
PART
TEMP RANGE
High-Speed Signal Squaring
Zero-Crossing Detectors
MAX9010EXT-T -40°C to +85°C
MAX9011EUT-T -40°C to +85°C
6 SC70-6
6 SOT23-6
8 µMAX
8 SO
AAA
AADD
—
High-Speed Line Receivers
High-Speed Sampling Circuits
High-Speed Triggers
MAX9012EUA
MAX9012ESA
MAX9013EUA
MAX9013ESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
—
8 µMAX
8 SO
—
—
Fast Pulse-Width/Height Discriminators
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
INA+
INA-
INB+
INB-
1
2
3
4
8
7
6
5
V
V
1
2
3
4
8
7
6
5
OUT
OUT
GND
LE
OUT
GND
IN+
1
2
3
6
5
4
V
V
OUT
GND
IN+
1
2
3
6
5
4
V
CC
CC
CC
+
_
CC
OUTA
OUTB
GND
IN+
IN-
+
_
LE
CC
+
_
+ –
+ –
N.C.
IN-
IN-
MAX9012
MAX9013
MAX9010
MAX9011
SO/µMAX
SO/µMAX
SC70
SOT23
________________________________________________________________ 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.
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
ABSOLUTE MAXIMUM RATINGS
Power Supply (V
to GND) ...................................-0.3V to +6V
8-Pin SO (derate 5.9ꢀW/°C above +70°C).................471ꢀW
Operating Teꢀperature Range ...........................-40°C to +85°C
Junction Teꢀperature......................................................+150°C
Storage Teꢀperature Range.............................-65°C to +150°C
Lead Teꢀperature (soldering, 10s) .................................+300°C
CC
Analog Input (IN+ or IN-) to GND...............-0.3V to (V
Input Current (IN+ or IN-) ................................................. 30ꢀA
LE to GND ..................................................-0.3V to (V + 0.3V)
+ 0.3V)
CC
CC
Continuous Output Current............................................... 40ꢀA
Continuous Power Dissipation (T = +70°C)
A
6-Pin SC70 (derate 3.1ꢀW/°C above +70°C).............245ꢀW
6-Pin SOT23 (derate 8.7ꢀW/°C above +70°C)...........696ꢀW
8-Pin µMAX (derate 4.5ꢀW/°C above +70°C)............362ꢀW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS (MAX9010/MAX9011)
(V = 5V, V = 0 (MAX9011 only), V
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
LE
CM
A
MIN
PARAMETER
SYMBOL
CONDITIONS
Inferred froꢀ V tests
MIN
TYP
MAX
5.5
2.1
5
UNITS
V
Supply Voltage Range
V
4.5
CC
CC
OS
Power-Supply Current (Note 2)
I
0.90
1
ꢀA
T
= +25°C
A
Input Offset Voltage
(Note 3)
V
ꢀV
OS
T =T
A
to T
MAX
7
MIN
∆V ∆T
Input Offset-Voltage Drift
Input Bias Current
2
µV/°C
µA
OS/
I
0.5
40
2
B
Input Offset Current
I
200
nA
OS
Differential Input Resistance
(Note 4)
R
V
=
IN(DIFF)
10ꢀV
250
1
kΩ
MΩ
V
IN(DIFF)
Coꢀꢀon-Mode Input
Resistance (Note 4)
R
-0.2V ≤ V
≤ (V
- 1.9V)
IN(CM)
CM
CC
Coꢀꢀon-Mode Input Voltage
Range (Note 4)
V
Inferred froꢀ V tests
-0.2
V - 1.9
CC
CM
OS
Coꢀꢀon-Mode Rejection
Ratio
CMRR
PSRR
-0.2V ≤ V
≤ (V
- 1.9V)
95
dB
CM
CC
Power-Supply Rejection Ratio
Sꢀall-Signal Voltage Gain
V
= 4.5V to 5.5V
82
3000
0.3
0.5
3.3
2.9
20
dB
CC
A
1V ≤ V
≤ 2V
V/V
V
OUT
I
I
I
I
= 0
0.5
0.6
SINK
Output Low Voltage
V
V
≥ 100ꢀV
V
V
OL
IN
= 4ꢀA
SINK
= 0
2.7
2.4
SOURCE
SOURCE
V
V
≥ 100ꢀV,
IN
Output High Voltage
V
OH
= 4.5V
CC
= 4ꢀA
Sinking
Output Short-Circuit Current
I
ꢀA
V
OUT
Sourcing
30
Latch Enable Pin High Input
Voltage
V
MAX9011 only
2
IH
Latch Enable Pin Low Input
Voltage
V
MAX9011 only
MAX9011 only,
0.8
25
V
IL
Latch Enable Pin Bias Current
I
, I
IH IL
µA
V
= 0 and V = 5V
LE
LE
2
_______________________________________________________________________________________
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
ELECTRICAL CHARACTERISTICS (MAX9010/MAX9011) (continued)
(V = 5V, V = 0 (MAX9011 only), V
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
LE
CM
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
2
TYP
0
MAX
UNITS
ns
Latch Setup Tiꢀe (Note 8)
Latch Hold Tiꢀe (Note 8)
t
MAX9011 only
MAX9011 only
SU
t
2
0.5
ns
H
Latch Propagation Delay
(Note 8)
t
MAX9011 only
f = 100kHz
5
ns
LPD
Input Noise-Voltage Density
e
6
5
nV/√Hz
n
V
V
V
V
= 100ꢀV
= 5ꢀV
8
9
OVERDRIVE
OVERDRIVE
OVERDRIVE
OVERDRIVE
C
= 5pF,
LOAD
T =+25°C
A
5.5
Propagation Delay (Note 6)
t
, t
ns
PD+ PD-
= 100ꢀV
= 5ꢀV
9
C
= 5pF,
LOAD
T =T
A
to T
MAX
MIN
10
Output Rise Tiꢀe
Output Fall Tiꢀe
t
0.5V ≤ V
2.5V ≥ V
≤ 2.5V
≥ 0.5V
3
2
ns
ns
R
OUT
OUT
t
F
MAX9010EXT
MAX9011EUT
0.8
1.2
1
Input Capacitance
Power-Up Tiꢀe
C
pF
µs
IN
t
ON
ELECTRICAL CHARACTERISTICS (MAX9012/MAX9013)
(V = 5V, V = 0 (MAX9013 only), V
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
LE
CM
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
4.2
2.3
3
UNITS
Supply Voltage Range
V
Inferred froꢀ PSRR test
MAX9012
4.5
V
CC
2.4
1.3
0.7
Power-Supply Current (Note 2)
I
ꢀA
ꢀV
CC
MAX9013
T
= +25°C
A
Input Offset Voltage
(Note 5)
V
OS
T =T
A
to T
MAX
5.5
MIN
Input Offset-Voltage Drift
Input Bias Current
∆V ∆T
2
µV/°C
µA
OS/
I
0.5
40
2
B
Input Offset Current
I
200
nA
OS
Differential Input Resistance
(Note 4)
R
V
=
IN(DIFF)
10ꢀV
250
1
kΩ
MΩ
V
IN(DIFF)
Coꢀꢀon-Mode Input
Resistance (Note 4)
R
-0.2V ≤ V
≤ (V
- 1.9V)
IN(CM)
CM
CC
Coꢀꢀon-Mode Input Voltage
Range (Note 4)
V
Inferred froꢀ CMRR test
-0.2
V
- 1.9
CC
CM
Coꢀꢀon-Mode Rejection
Ratio
CMRR
PSRR
-0.2V ≤ V
≤ (V
- 1.9V)
75
63
95
82
dB
dB
CM
CC
Power-Supply Rejection Ratio
V
= 4.5V to 5.5V
CC
_______________________________________________________________________________________
3
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
ELECTRICAL CHARACTERISTICS (MAX9012/MAX9013) (continued)
(V = 5V, V = 0 (MAX9013 only), V
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
LE
CM
A
MIN
PARAMETER
SYMBOL
CONDITIONS
≤ 2V
MIN
TYP
3000
0.3
0.5
3.3
2.9
20
MAX
UNITS
Sꢀall-Signal Voltage Gain
A
1V ≤ V
1000
V/V
V
OUT
I
I
I
I
= 0
0.5
0.6
SINK
Output Low Voltage
V
V
≥ 100ꢀV
V
V
OL
IN
= 4ꢀA
SINK
= 0
2.7
2.4
SOURCE
SOURCE
V
V
≥ 100ꢀV,
= 4.5V
IN
Output High Voltage
V
OH
CC
= 4ꢀA
Sinking
Output Short-Circuit Current
I
ꢀA
V
OUT
Sourcing
30
Latch Enable Pin High Input
Voltage
V
MAX9013 only
2
IH
Latch Enable Pin Low Input
Voltage
V
MAX9013 only
MAX9013 only
0.8
25
V
IL
Latch Enable Pin Bias Current
Input Noise-Voltage Density
I
, I
IH IL
µA
V
= 0 and V = 5V
LE
LE
e
f = 100kHz
= 5pF,
6
5
nV/√Hz
n
V
V
V
V
= 100ꢀV
8
9
OVERDRIVE
OVERDRIVE
OVERDRIVE
OVERDRIVE
C
LOAD
T =+25°C
A
= 5ꢀV
5.5
Propagation Delay (Note 6)
t
, t
ns
PD+ PD-
= 100ꢀV
= 5ꢀV
9
C
= 5pF,
LOAD
T =T
A
to T
MAX
MIN
10
Differential Propagation Delay
(Notes 6, 7)
V
V
= 100ꢀV step, C
= 5pF,
LOAD
IN
∆t
2
3
ns
ps
PD
= 5ꢀV
OD
Channel-to-Channel
Propagation Delay (Note 6)
MAX9012 only, V = 100ꢀV step,
IN
C
∆t
500
PD(ch-ch)
= 5pF, V
= 5ꢀV
LOAD
OD
≤ 2.5V
≥ 0.5V
Output Rise Tiꢀe
t
0.5V ≤ V
2.5V ≥ V
3
2
ns
ns
ns
ns
R
OUT
OUT
Output Fall Tiꢀe
t
F
Latch Setup Tiꢀe (Note 8)
Latch Hold Tiꢀe (Note 8)
t
MAX9013 only
MAX9013 only
2
2
0
SU
t
0.5
H
Latch Propagation Delay
(Note 8)
t
MAX9013 only
5
ns
LPD
MAX9012EUA/MAX9013EUA
MAX9012ESA/MAX9013ESA
1.5
2
Input Capacitance
Power-Up Tiꢀe
C
pF
µs
IN
t
1
ON
Note 1: All specifications are 100% tested at T = +25°C; teꢀperature liꢀits are guaranteed by design.
A
Note 2: Quiescent Power-Supply Current is slightly higher with the coꢀparator output at V . This paraꢀeter is specified with the worst-
OL
case condition of V
= V for the MAX9010/MAX9011 and both outputs at V for the MAX9012. For the MAX9013, which
OUT
OL OL
has coꢀpleꢀentary outputs, the power-supply current is specified with either OUT = V , OUT = V
or OUT = V , OUT =
OH
OL
OH
V
OL
(power-supply current is equal in either case).
Note 3: Input Offset Voltage is tested and specified with the Input Coꢀꢀon-Mode Voltage set to either extreꢀe of the Input Coꢀꢀon-
Mode Voltage Range (-0.2V to (V - 1.9V)) and with the Power-Supply Voltage set to either extreꢀe of the Power-Supply
CC
Voltage Range (4.5V to 5.5V).
4
_______________________________________________________________________________________
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Note 4: Although Coꢀꢀon-Mode Input Voltage Range is restricted to -0.2V ≤ V
≤ (V - 1.9V), either or both inputs can go to either
CC
CM
absolute ꢀaxiꢀuꢀ voltage liꢀit, i.e., froꢀ -0.3V to (V + 0.3V), without daꢀage. The coꢀparator will ꢀake a correct (and fast)
CC
logic decision provided that at least one of the two inputs is within the specified coꢀꢀon-ꢀode range. If both inputs are outside
the coꢀꢀon-ꢀode range, the coꢀparator output state is indeterꢀinate.
Note 5: For the MAX9012, Input Offset Voltage is defined as the input voltage(s) required to ꢀake the OUT output voltage(s) reꢀain
stable at 1.4V. For the MAX9013, it is defined as the average of two input offset voltages, ꢀeasured by forcing first the OUT
output, then the OUT output to 1.4V.
Note 6: Propagation delay for these high-speed coꢀparators is guaranteed by design because it cannot be accurately ꢀeasured
with low levels of input overdrive voltage using autoꢀatic test equipꢀent in production. Note that for low overdrive
conditions, V is added to the overdrive.
OS
Note 7: Differential Propagation Delay, ꢀeasured either on a single output of the MAX9012/MAX9013 (or between OUT and OUT
outputs on the MAX9013) is defined as: ∆t
= |(t
) - (t )|.
PD+ PD-
PD( )
Note 8: Latch tiꢀes are guaranteed by design. Latch setup tiꢀe (t ) is the interval in which the input signal ꢀust be stable prior to
SU
asserting the latch signal. The hold tiꢀe (t ) is the interval after the latch is asserted in which the input signal ꢀust reꢀain
H
stable. Latch propagation delay (t
(see Figure 1).
) is the delay tiꢀe for the output to respond when the latch enable pin is deasserted
LPD
Typical Operating Characteristics
(V = 5V, C = 15pF, T = +25°C, unless otherwise noted.)
CC
L
A
PROPAGATION DELAY
vs. INPUT OVERDRIVE
RESPONSE TO +5mV OVERDRIVE
RESPONSE TO -5mV OVERDRIVE
MAX9010–13 toc01
MAX9010–13 toc02
6.0
5.5
+100mV
IN
0
IN
t
PD(+)
5.0
4.5
-100mV
0
3V
3V
t
PD(-)
4.0
OUT
0
OUT
0
3.5
3.0
t = 5ns/div
1
10
OVERDRIVE (mV)
100
t = 5ns/div
IN: 50mV/div
OUT: 1V/div
IN: 50mV/div
OUT: 1V/div
_______________________________________________________________________________________
5
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Typical Operating Characteristics (continued)
(V
= 5V, C = 15pF, T = +25°C, unless otherwise noted.)
CC
L
A
PROPAGATION DELAY
vs. LOAD CAPACITANCE
PROPAGATION DELAY
vs. INPUT OVERDRIVE
PROPAGATION DELAY
vs. SOURCE RESISTANCE
45
40
35
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
6.0
5.5
t
PD(+)
t
PD(-)
30
25
20
15
10
5
5.0
4.5
t
PD(-)
t
PD(+)
t
PD(+)
4.0
3.5
3.0
t
PD(-)
0
1
10
100
10
100
1k
10k
10
20
30
40
50
60
OVERDRIVE (mV)
SOURCE RESISTANCE (Ω)
LOAD CAPACITANCE (pF)
OFFSET VOLTAGE
vs. TEMPERATURE
RESPONSE TO 50MHz 10mV
SINE WAVE
RESPONSE TO 10kHz TRIANGLE WAVE
MAX9010–13 toc07
MAX9010–13 toc08
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
A
A
0
0
B
0
B
0
-40
-15
10
35
60
85
10ns/div
A: Input, 10mV/div
20µs/div
TEMPERATURE (°C)
A: Input, 20mV/div
B: Output, 2V/div
B: Output, 2V/div
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(PER COMPARATOR)
OUTPUT VOLTAGE vs.
DIFFERENTIAL INPUT VOLTAGE
INPUT BIAS CURRENT vs. TEMPERATURE
3.0
2.5
2.0
1.5
1.0
0.5
0
2.5
2.0
0.7
0.6
T
= +25°C
A
T
= +85°C
A
V
= -0.2V
CM
T
= +85°C
A
1.5
1.0
0.5
0.4
T
= +25°C
A
V
= 3.1V
CM
T
= -40°C
A
0.5
0
0.3
0.2
T
= -40°C
A
4.50 4.75 5.00 5.25 5.50 5.75 6.00
(V)
-3
-2
-1
0
1
2
3
-40
-15
10
35
60
85
V
DIFFERENTIAL INPUT VOLTAGE (mV)
TEMPERATURE (°C )
CC
6
_______________________________________________________________________________________
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Pin Description
PIN
NAME
FUNCTION
MAX9010
MAX9011
MAX9012
MAX9013
Coꢀparator Output. OUT is high when IN+ is ꢀore
positive than IN-.
1
1
—
7
OUT
2
3
4
2
3
4
5
6
2
3
GND
IN+
IN-
Ground
—
—
Noninverting Input
Inverting Input
Positive Power-Supply Voltage. Pins 5 and 6 of the
MAX9010 ꢀust BOTH be connected to the power-
supply rail. Bypass with a 0.1µF capacitor.
5, 6
6
8
1
V
CC
—
—
—
—
—
—
—
5
—
1
5
LE
Latch Enable Input
—
—
—
—
—
—
—
—
—
—
—
—
INA+
INA-
Noninverting Input, Channel A
Inverting Input, Channel A
Noninverting Input, Channel B
Inverting Input, Channel B
Coꢀparator Output, Channel B
Coꢀparator Output, Channel A
2
3
INB+
INB-
4
6
OUTB
OUTA
7
No Connection. Not internally connected. Connect to
GND for best results.
—
—
—
—
—
—
4
8
N.C.
OUT
Coꢀparator Coꢀpleꢀentary Output
total coꢀꢀon-ꢀode range is 3.3V when operating froꢀ a
5V supply. The aꢀplifiers have no built-in hysteresis. For
highest accuracy, do not add hysteresis. Figure 2 shows
how hysteresis degrades resolution.
Detailed Description
These high-speed coꢀparators have a unique design
that prevents oscillation when the coꢀparator is in its
linear region, so no ꢀiniꢀuꢀ input slew rate is required.
Many high-speed coꢀparators oscillate in their linear
region. One coꢀꢀon way to overcoꢀe this oscillation is
to add hysteresis, but it results in a loss of resolution
and bandwidth.
Input Voltage Range
Although the coꢀꢀon-ꢀode input voltage range is
restricted to -0.2V to (V
- 1.9V), either or both inputs
CC
can go to either absolute ꢀaxiꢀuꢀ voltage liꢀit, i.e.,
froꢀ -0.3V to (V + 0.3V), without daꢀage. The coꢀ-
CC
Latch Function
The MAX9011/MAX9013 provide a TTL-coꢀpatible latch
function that holds the coꢀparator output state (Figure 1).
With LE driven to a TTL low or grounded, the latch is
transparent and the output state is deterꢀined by the
input differential voltage. When LE is driven to a TTL high,
the existing output state is latched, and the input differen-
tial voltage has no further effect on the output state.
parator will ꢀake a correct (and fast) logic decision
provided that at least one of the two inputs is within the
specified coꢀꢀon-ꢀode range. If both inputs are out-
side the coꢀꢀon-ꢀode range, the coꢀparator output
state is indeterꢀinate.
Resolution
A coꢀparator’s ability to resolve a sꢀall-signal differ-
ence, its resolution, is affected by various factors. As
with ꢀost aꢀplifiers and coꢀparators, the ꢀost signifi-
Input Amplifier
A coꢀparator can be thought of as having two sec-
tions: an input aꢀplifier and a logic interface. The input
aꢀplifiers of these devices are fully differential, with
input offset voltages typically 0.7ꢀV at +25°C. Input
coꢀꢀon-ꢀode range extends froꢀ 200ꢀV below
ground to 1.9V below the positive power-supply rail. The
cant factors are the input offset voltage (V ) and the
OS
coꢀꢀon-ꢀode and power-supply rejection ratios
(CMRR, PSRR). If source iꢀpedance is high, input off-
set current can be significant. If source iꢀpedance is
unbalanced, the input bias current can introduce
another error. For high-speed coꢀparators, an addi-
_______________________________________________________________________________________
7
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
t
SU
V
IN
(DIFFERENTIAL)
t
H
LATCH
ENABLE (LE)
t
PD+
OUT
Figure 1. Timing Diagram
IN+
IN-
HYSTERESIS
BAND*
OUT
WITH HYSTERESIS
IDEAL (WITHOUT HYSTERESIS)
* WHEN HYSTERESIS IS ADDED, A COMPARATOR CANNOT RESOLVE ANY INPUT SIGNAL WITHIN THE HYSTERESIS BAND.
Figure 2. Effect of Hysteresis on Input Resolution
tional factor in resolution is the coꢀparator’s stability in
its linear region. Many high-speed coꢀparators are
useless in their linear region because they oscillate.
This ꢀakes the differential input voltage region around
zero unusable. Hysteresis helps to cure the probleꢀ
but reduces resolution (Figure 2). The devices do not
oscillate in the linear region and require no hysteresis,
which greatly enhances their resolution.
Miniꢀize the trace length and area at the coꢀparator
inputs. If the source iꢀpedance is high, take the utꢀost
care in ꢀiniꢀizing its susceptibility to pickup of unwant-
ed signals.
Input Slew Rate
Most high-speed coꢀparators have a ꢀiniꢀuꢀ input
slew-rate requireꢀent. If the input signal does not
transverse the region of instability within a propagation
delay of the coꢀparator, the output can oscillate. This
ꢀakes ꢀany high-speed coꢀparators unsuitable for
processing either slow-ꢀoving signals or fast-ꢀoving
signals with low overdrive. The design of these devices
eliꢀinates the ꢀiniꢀuꢀ input slew-rate requireꢀent.
They are excellent for circuits froꢀ DC up to 200MHz,
even with very low overdrive, where sꢀall signals need
to be resolved.
Applications Information
Power Supplies, Bypassing, and
Board Layout
These products operate over a supply voltage range of
4.5V to 5.5V. Bypass V
to GND with a 0.1µF surface-
CC
ꢀount ceraꢀic capacitor. Mount the ceraꢀic capacitor
as close as possible to the supply pin to ꢀiniꢀize lead
inductance.
As with all high-speed coꢀponents, careful attention to
board layout is essential for best perforꢀance. Use a
PC board with an unbroken ground plane. Pay close
attention to the bandwidth of bypass coꢀponents and
place theꢀ as close as possible to the device.
8
_______________________________________________________________________________________
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Chip Information
Selector Guide
MAX9010 TRANSISTOR COUNT: 106
COMPLEMENTARY
PART
COMPARATORS LATCH
MAX9011 TRANSISTOR COUNT: 137
MAX9012 TRANSISTOR COUNT: 212
MAX9013 TRANSISTOR COUNT: 145
PROCESS: Bipolar
OUTPUTS
MAX9010
MAX9011
MAX9012
MAX9013
1
1
2
1
No
Yes
No
No
No
No
Yes
Yes
Package Information
_______________________________________________________________________________________
9
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Package Information (continued)
10 ______________________________________________________________________________________
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Package Information (continued)
______________________________________________________________________________________ 11
SC70, 5ns, Low-Power, Single-Supply,
Precision TTL Comparators
Package Information (continued)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2002 Maxiꢀ Integrated Products
Printed USA
is a registered tradeꢀark of Maxiꢀ Integrated Products.
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