MAX912 Maxim, MAX912 Datasheet

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MAX912

Manufacturer Part Number
MAX912
Description
The MAX913 single and MAX912 dual, high-speed, low-power comparators have differential inputs and complementary TTL outputs
Manufacturer
Maxim
Datasheet

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The MAX913 single and MAX912 dual, high-speed,
low-power comparators have differential inputs and
complementary TTL outputs. Fast propagation delay
(10ns, typ), extremely low supply current, and a wide
common-mode input range that includes the negative
rail make the MAX912/MAX913 ideal for low-power,
high-speed, single +5V (or ±5V) applications such as
V/F converters or switching regulators.
The MAX912/MAX913 outputs remain stable through
the linear region. This feature eliminates output instabili-
ty common to high-speed comparators when driven
with a slow-moving input signal.
The MAX912/MAX913 can be powered from a single
+5V supply or a ±5V split supply. The MAX913 is an
improved plug-in replacement for the LT1016. It pro-
vides significantly wider input voltage range and equiv-
alent speed at a fraction of the power. The MAX912
dual comparator has equal performance to the MAX913
and includes independent latch controls.
19-0157; Rev 2; 8/03
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.
Zero-Crossing Detectors
Ethernet Line Receivers
Switching Regulators
High-Speed Sampling Circuits
High-Speed Triggers
Extended Range V/F Converters
Fast Pulse Width/Height Discriminators
TOP VIEW
________________________________________________________________ Maxim Integrated Products
IN+
IN-
V+
V-
1
2
4
3
General Description
DIP/SO/ MAX
MAX913
Single/Dual, Ultra-Fast, Low-Power
Applications
8
7
6
5
Q
Q
GND
LE
Precision TTL Comparators
o Ultra Fast (10ns)
o Single +5V or Dual ±5V Supply Operation
o Input Range Extends Below Negative Supply
o Low Power: 6mA (+5V) Per Comparator
o No Minimum Input Signal Slew-Rate Requirement
o No Power-Supply Current Spiking
o Stable in the Linear Region
o Inputs Can Exceed Either Supply
o Low Offset Voltage: 0.8mV
o Now Available in a Small µMAX Package
MAX912CPE
MAX912CSE
MAX912EPE
MAX912ESE
MAX913CPA
MAX913CSA
MAX913EPA
MAX913ESA
MAX913EUA
PART
INA+
GND
INA-
N.C.
LEA
QA
QA
V-
1
2
6
3
4
5
7
8
DIP/NARROW SO
-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
TEMP RANGE
Ordering Information
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
A
MAX912
Pin Configurations
B
16
15
14
13
12
11
10
9
QB
QB
GND
LEB
N.C.
V+
INB-
INB+
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 Plastic DIP
16 Narrow SO
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 µMAX
Features
1

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MAX912 Summary of contents

Page 1

... The MAX913 is an improved plug-in replacement for the LT1016. It pro- vides significantly wider input voltage range and equiv- alent speed at a fraction of the power. The MAX912 dual comparator has equal performance to the MAX913 and includes independent latch controls. ...

Page 2

... Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW 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 ...

Page 3

... +25° 5mV 100mV 5mV T = +25° (MAX912 only LPD = +25°C, unless otherwise noted. Specification limits over temperature ( defined the same way. OS driven to both V and V (not 1.4V cannot be measured in automatic handling equipment PD is added to overdrive ...

Page 4

Single/Dual, Ultra-Fast, Low-Power Precision TTL Comparators (V+ = +5V -5V 0V 15pF PROPAGATION DELAY vs. INPUT OVERDRIVE PD PD 100 INPUT ...

Page 5

... Precision TTL Comparators Typical Operating Characteristics (continued) = +25°C, unless otherwise noted.) A INPUT 100mV/div OUTPUT Q 1V/div Q MAX912/MAX913 RESPONSE TO 50MHZ ( 10mV ) SINE WAVE P-P 10ns/div MAX912/MAX913 RESPONSE TO SLOW-MOVING TRIANGLE WAVE INPUT 20mV/div OUTPUT Q 1V/div Q 1V/div NEGATIVE-TO-POSITIVE PROPAGATION DELAY 5ns/div INPUT 10mV/div OUTPUT Q 2V/div ...

Page 6

... Negative Power Supply. -5V for dual supplies (bypass to GND with a 0.1µF capacitor) or GND for single supply. Latch Enable. Q and Q are latched when LE is TTL high or floating. The comparator latch transparent when LE is low. 6 GND Logic Ground 7 Q TTL Output Q 8 Complementary TTL Output 6 _______________________________________________________________________________________ MAX912 Pin Description FUNCTION MAX913 Pin Description FUNCTION ...

Page 7

... This makes the differential input voltage region around 0V unus- able, as does a high V Input Amplifier problem, but acts to keep the input away from its linear range (Figure The MAX912/MAX913 do not oscillate in the linear region, which greatly enhances the comparator’s reso- lution ...

Page 8

... Single/Dual, Ultra-Fast, Low-Power Precision TTL Comparators Applications Information Power Supplies and Bypassing The MAX912/MAX913 are tested with ±5V power sup- plies that provide an input common-mode range (V of 8.7V (-5.2V to +3.5V). Operation from a single +5V supply provides a common-mode input range of 3.7V (-0.2V to +3.5). Connect V- to GND for single-supply operation ...

Page 9

... Single/Dual, Ultra-Fast, Low-Power (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) _______________________________________________________________________________________ Precision TTL Comparators Package Information 9 ...

Page 10

... Single/Dual, Ultra-Fast, Low-Power Precision TTL Comparators (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 10 ______________________________________________________________________________________ Package Information (continued) ...

Page 11

... For the latest package outline information go to www.maxim-ic.com/packages.) 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. ...

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