Maxim MAX909MJA, MAX909CPA, MAX909CSA, MAX909EPA, MAX908MJD Datasheet

...

19-0129; Rev. 3; 7/94

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

Single-Supply TTL Comparators

_______________General Description

The MAX907/MAX908/MAX909 dual, quad, and single high-speed, ultra low-power voltage comparators are designed for use in systems powered from a single +5V supply; the MAX909 also accepts dual ±5V supplies. Their 40ns propagation delay (with 5mV input overdrive) is achieved with a power consumption of only 3.5mW per comparator. The wide input commonmode 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 comparators 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 pull-up circuitry. All inputs and outputs can be continuously shorted to either supply rail without damage. 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 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 small-outline packages, and the quad MAX908 is available in 14-pin DIP and small-outline packages. These comparators 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

MAX907CSA 0°C to +70°C 8 SO MAX907C/D 0°C to +70°C Dice* MAX907EPA -40°C to +85°C 8 Plastic DIP MAX907ESA -40°C to +85°C 8 SO MAX907MJA -55°C to +125°C 8 CERDIP

Ordering Information continued on last page.

* Dice are specified at +25°C, DC parameters only.

0°C to +70°C 8 Plastic DIP

_________________Pin Configurations

TOP VIEW

Pin Configurations continued on last page.

OUTA

INAINA+

GND

OUTA

INAINA+

INB+

INB-

OUTB

1 2 3 4

MAX907

DIP/SO

1 2 3 4

V+

MAX908

5 6 7

DIP/SO

V+ OUTB

INB-

6 5

INB+

OUTD IND-

IND+

12 11

GND INC+

INC-

9 8

OUTC

MAX907/MAX908/MAX909

________________________________________________________________ Maxim Integrated Products

Call toll free 1-800-998-8800 for free samples or literature.

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

ABSOLUTE MAXIMUM RATINGS

Positive Supply Voltage (V+ to GND) ........................+7V

Negative Supply Voltage (V- to GND, MAX909 only).........-7V

Differential Input Voltage

MAX907/MAX908..........................-0.3V to (V+ + 0.3V)

MAX909 ..............................(V- - 0.3V) to (V+ + 0.3V)

Common-Mode Input Voltage

MAX907/MAX908..........................-0.3V to (V+ + 0.3V)

MAX909 ..............................(V- - 0.3V) to (V+ + 0.3V)

Latch Input Voltage (MAX909 only).........-0.3V to (V+ + 0.3V)

Input/Output Short-Circuit Duration to V+ or GND . ..Continuous

Continuous Power Dissipation (T

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

8-Pin SO (derate 5.88mW/°C above +70°C) ...........471mW

8-Pin CERDIP (derate 8.00mW/°C above +70°C)......640mW

14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) . ..800mW

14-Pin SO (derate 8.33mW/°C above +70°C)..........667mW

14-Pin CERDIP (derate 9.09mW/°C above +70°C) ....727mW

Operating Temperature Ranges:

MAX90_C_ _ ...................................... 0°C to +70°C

MAX90_E_ _ ...................................-40°C to +85°C

MAX90_MJ_ ..................................-55°C to +125°C

Storage Temperature Range ...................-65°C to +160°C

Lead Temperature (soldering, 10sec)....................+300°C

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

(V+ = 5V, TA= +25°C; MAX909 only: V- = 0V, V

MAX907/MAX908/MAX909

PARAMETER CONDITIONS MIN TYP MAX UNITS

Positive Trip Point Negative Trip Point Input Offset Voltage Input Bias Current Input Offset Current

Input Voltage Range

SYMBOL

TRIP+

TRIP-

CMR

Common-Mode Rejection Ratio CMRR (Notes 4, 5) 50 100 µV/V Power-Supply Rejection Ratio PSRR (Notes 4, 6) 50 100 µV/V Output High Voltage

Positive Supply Current per Comparator

I+ (Note 7)

Negative Supply Current I- MAX909 only: V- = -5V 60 100 µA Power Dissipation per

Comparator Output Rise Time

Output Fall Time

PD (Note 8)

= 0V; unless otherwise noted.)

LATCH

(Note 1) 24 mV (Note 1) -2 -4 mV (Note 2) 0.5 2.0 mV VCM= 0V, VIN= V VCM= 0V, VIN= V

(Notes 3, 4)

SOURCE

= 3.2mA

SINK

= 8mA

SINK

OS OS

MAX907/908/909 MAX909 only: V- = -5V

= 100µA

-0.2 V+ - 1.5

-5.2 V+ - 1.5

3.0 3.5

MAX907/MAX908 MAX909

= 0.4V to 2.4V, CL= 10pF

OUT

= 2.4V to 0.4V, CL= 10pF

OUT

= +70°C)

100 300 nA

25 50 nA

0.3 0.4

0.4

0.7 1.0

1.2 1.8

3.5 5.5 610

12 ns

6 ns

V VOutput Low Voltage

2 _______________________________________________________________________________________

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

Single-Supply TTL Comparators

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 5V, TA= +25°C; MAX909 only: V- = 0V, V

PARAMETER

Propagation Delay

SYMBOL CONDITIONS MIN TYP MAX UNITS

PD+,tPD-

Differential Propagation Delay

Propagation Delay Skew

tPDskew

Latch Input Voltage High Latch Input Voltage Low Latch Input Current

IIH, I Latch Setup Time Latch Hold Time

ELECTRICAL CHARACTERISTICS

(V+ = 5V, TA= T

Positive Trip Point Negative Trip Point Input Offset Voltage Input Bias Current Input Offset Current

Input Voltage Range

Common-Mode Rejection Ratio CMRR (Notes 4, 5) 75 200 µV/V Power-Supply Rejection Ratio PSRR (Notes 4, 6) 75 200 µV/V Output High Voltage

Positive Supply Current per Comparator

Negative Supply Current I- MAX909 only: V- = -5V 100 200 µA Power Dissipation per Comparator PD (Note 8)

to T

MIN

MAX

PARAMETER

; MAX909 only: V- = 0V, V

SYMBOL CONDITIONS MIN TYP MAX UNITS

= 0V; unless otherwise noted.)

LATCH

VIN= 100mV, VOD= 5mV, (Note 9)

∆t

VIN= 100mV, VOD= 5mV,

(Note 10) MAX909 only: VIN= 100mV,

= 5mV, (Note 11)

V V

TRIP+

TRIP-

(Note 12) 2.0 V

(Note 12) 0.8 V

(Note 12) 20 µA

(Note 12) 2 ns

= 0V; unless otherwise noted.)

LATCH

(Note 1) 25 mV (Note 1) -2 -5 mV (Note 2) 13 mV

VCM= 0V, VIN= V

C/E temp. ranges (Notes 3, 4)

CMR

M temp. range (Notes 3, 4)

V V

SOURCE

SINK

= 100µA = 3.2mA = 8mA

I+ (Note 7)

OS OS

MAX909 only, V- = -5V

MAX907/908/909 MAX909 only,

V- = -5V

MAX907/MAX908 MAX909

40 50 ns

1 ns

2 ns

200 500 nA

50 100 nA

-0.2 V+ - 1.5MAX907/908/909

-5.2 V+ - 1.5

-0.1 V+ - 1.5

-5.1 V+ - 1.5

2.8 3.5

0.3 0.4

0.4

0.8 1.2

1.2 2.0

47 611

V VOutput Low Voltage

MAX907/MAX908/MAX909

_______________________________________________________________________________________ 3

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

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 5V, TA= T

Propagation Delay

Differential Propagation Delay

Propagation Delay Skew Latch Input Voltage High

Latch Input Voltage Low Latch Input Current Latch Setup Time Latch Hold Time

Note 1: Trip Point is defined as the input voltage required to make the comparator output change state. The difference

Note 2: Input Offset Voltage is defined as the center of the input-referred hysteresis zone. Specified for V Note 3: Inferred from the CMRR test. Note that a correct logic result is obtained at the output, provided that at least one input is

MAX907/MAX908/MAX909

Note 4: Tested with V+ = 5.5V (and V- = 0V for MAX909). MAX909 also tested over the full analog input range (i.e., with

Note 5: Tested over the full input voltage range (V Note 6: Specified over the full tolerance of operating supply voltage: MAX907/MAX908 tested with 4.5V < V+ < 5.5V. MAX909

Note 7: Positive Supply Current specified with the worst-case condition of all outputs at logic low (MAX907/MAX908), and

Note 8: Typical power specified with V+ = 5V; maximum with V+ = 5.5V (and with V- = -5.5V for MAX909). Note 9: Due to difficulties in measuring propagation delay with 5mV of overdrive in automatic test equipment, the

Note 10: Differential Propagation Delay is specified as the difference between any two channels in the MAX907/MAX908 (both out-

Note 11: Propagation Delay Skew is specified as the difference between any single channel’s output low-to-high transition (t

Note 12: Latch specifications apply to MAX909 only. See Figure 2.

to T

MIN

PARAMETER

; MAX909 only: V- = 0V, V

MAX

SYMBOL CONDITIONS MIN TYP MAX UNITS

PD+,tPD-

∆t

tPDskew

IIH, I

between upper (V

+) and lower (V

TRIP

Specified for an input common-mode voltage (V

within the V

limits. Note also that either or both inputs can be driven to the upper or lower absolute maximum limit with-

CMR

= 0V; unless otherwise noted.)

LATCH

VIN= 100mV, VOD= 5mV (Note 9)

VIN= 100mV, VOD= 5mV (Note 10)

MAX909 only: VIN= 100mV,

= 5mV (Note 11)

45 70 ns

2 ns

4 ns

(Note 12) 2.0 V (Note 12) 0.8 V (Note 12) 20 µA (Note 12) 4 ns (Note 12) 4 ns

-) trip points is equal to the width of the input-referred hysteresis zone (V ) of 0V. See Figure 1.

= 0V. See Figure 1.

out damage to the part.

V- = -5.5V).

CMR

tested with 4.5V < V+ < 5.5V and with -5.5V < V- < 0V.

with V+ = 5.5V.

MAX907/MAX908/MAX909 are sample tested to 0.1% AQL with 100mV input overdrive. Correlation tests show that the specification can be guaranteed if all other DC parameters are within the specified limits. V

must be added to the over-

drive voltage for low values of overdrive.

puts making either a low-to-high or a high-to-low transition).

and high-to-low transition (t

-), and also between the QOUT and QOUT transition on the MAX909.

HYST

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