MAX907 Просмотр технического описания (PDF) - Maxim Integrated

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MAX907

Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators

Maxim Integrated 

19-0129; Rev 7; 1/06

Dual/Quad/Single, High-Speed, Ultra-Low-Power,

Single-Supply TTL Comparators

General Description

The MAX907/MAX908/MAX909 are dual/quad/single,

high-speed, ultra-low-power voltage comparators

designed for use in systems powered from a single

+5V supply; the MAX909 also accepts dual ±5V sup-

plies. Their 40ns propagation delay (with 5mV input

overdrive) is achieved with a power consumption of

only 3.5mW per comparator. The wide input common-

mode range extends from 200mV below ground (below

the negative supply rail for the MAX909) to within 1.5V

of the positive supply rail.

Because they are micropower, high-speed compara-

tors that operate from a single +5V supply and include

built-in hysteresis, these devices replace a variety of

older comparators in a wide range of applications.

MAX907/MAX908/MAX909 outputs are TTL-compatible,

requiring no external pullup circuitry. All inputs and out-

puts can be continuously shorted to either supply rail

without damage. These easy-to-use comparators incor-

porate internal hysteresis to ensure clean output switch-

ing even when the devices are driven by a slow-moving

input signal.

The MAX909 features complementary outputs and an

output latch. A separate supply pin for extending the

analog input range down to -5V is also provided.

The dual MAX907 and single MAX909 are available in

8-pin DIP and SO packages, and the quad MAX908 is

available in 14-pin DIP and SO packages. These com-

parators are ideal for single +5V-supply applications

that require the combination of high speed, precision,

and ultra-low power dissipation.

Applications

Battery-Powered Systems

High-Speed A/D Converters

High-Speed V/F Converters

Line Receivers

Threshold Detectors/Discriminators

High-Speed Sampling Circuits

Zero-Crossing Detectors

Features

♦ 40ns Propagation Delay

♦ 700µA (3.5mW) Supply Current per Comparator

♦ Single 4.5V to 5.5V Supply Operation

(or ±5V, MAX909 only)

♦ Wide Input Range Includes Ground

(or -5V, MAX909 only)

♦ Low, 500µV Offset Voltage

♦ Internal Hysteresis Provides Clean Switching

♦ TTL-Compatible Outputs

(Complementary on MAX909)

♦ Input and Output Short-Circuit Protection

♦ Internal Latch (MAX909 only)

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX907CPA

0°C to +70°C

8 Plastic DIP

MAX907CSA

0°C to +70°C

8 SO

MAX907EPA

-40°C to +85°C

8 Plastic DIP

MAX907ESA

MAX907MSA/PR*

-40°C to +85°C

-55°C to +125°C

8 SO

8 SO

Ordering Information continued at end of data sheet.

*Go to www.maxim-ic.com/PR-1 for details on high-reliability

plastic processing.

Pin Configurations

TOP VIEW

OUTA 1

INA- 2

INA+ 3

GND 4

MAX907

DIP/SO

8 V+

7 OUTB

6 INB-

5 INB+

OUTA 1

INA- 2

INA+ 3

V+ 4

INB+ 5

INB- 6

OUTB 7

MAX908

14 OUTD

13 IND-

12 IND+

11 GND

10 INC+

9 INC-

8 OUTC

DIP/SO

Pin Configurations continued at end of data sheet.

________________________________________________________________ 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.

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