Rainbow Electronics MAX903 User Manual

General Description

The MAX900–MAX903 high-speed, low-power, single/
dual/quad voltage comparators feature differential ana­log inputs and TTL-logic outputs with active internal pull­ups. Fast propagation delay (8ns typ at 5mV overdrive)
makes the MAX900–MAX903 ideal for fast A/D convert­ers and sampling circuits, line receivers, V/F converters,
and many other data-discrimination applications.

All comparators can be powered from separate analog
and digital power supplies or from a single combined sup­ply voltage. The analog input common-mode range
includes the negative rail, allowing ground sensing when
powered from a single supply. The MAX900–MAX903
consume 18mW per comparator when powered from +5V.

The MAX900–MAX903 are equipped with independent
TTL-compatible latch inputs. The comparator output
states are held when the latch inputs are driven low. The
MAX901 provides the same performance as the
MAX900/MAX902/MAX903 with the exception of the
latches.

For newer, pin-for-pin compatible parts with the same
speed and only half the power dissipation, see the
MAX9201/MAX9202/MAX9203 data sheet.

Applications

Features

♦ 8ns (typ) Propagation Delay

♦ 18mW/Comparator Power Consumption (+5V, typ)

♦ Separate Analog and Digital Supplies

♦ Flexible Analog Supply: +5V to +10V or ±5V

♦ Input Range Includes Negative Supply Rail

♦ TTL-Compatible Outputs

♦ TTL-Compatible Latch Inputs (Except MAX901)

MAX900–MAX903

High-Speed, Low-Power Voltage Comparators

________________________________________________________________ Maxim Integrated Products 1

Pin Configurations

Ordering Information

19-2887; Rev. 4; 7/01

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.

Ordering Information continued at end of data sheet.

Pin Configurations continued at end of data sheet.

High-Speed A/D
Converters

High-Speed V/F
Converters

Line Receivers
Threshold Detectors

Input Trigger Circuitry
High-Speed Data

Sampling
PWM Circuits

PART TEMP RANGE PIN-PACKAGE

MAX900ACPP 0°C to +70°C 20 Plastic DIP

MAX900BCPP 0°C to +70°C 20 Plastic DIP

MAX900ACWP 0°C to +70°C 20 Wide SO

MAX900BCWP 0°C to +70°C 20 Wide SO

MAX900AEPP -40°C to +85°C 20 Plastic DIP

MAX900BEPP -40°C to +85°C 20 Plastic DIP

MAX900AEWP -40°C to +85°C 20 Wide SO

MAX900BEWP -40°C to +85°C 20 Wide SO

MAX901ACPE 0°C to +70°C 16 Plastic DIP

MAX901BCPE 0°C to +70°C 16 Plastic DIP

TOP VIEW

MAX901

1

IN- (A) IN- (D)

IN+ (A)

2

GND

3

AD

4

OUT (A)

OUT (B)

5

BC

*

V

6

EE

IN+ (B)

7

IN- (B)

8

DIP/SO

16

15

14

13

12

11

10

9

IN+ (D)

**

V

CC

OUT (D)

OUT (C)

**

V

DD

IN+ (C)

IN- (C)

IN- (A)

IN+ (A)

GND

OUT (A)

N.C.

MAX902

1

2

3

4

A

5

6

*

7

EE

DIP/SO

14

VCC**

13

N.C.

12

OUT (B)

B

11

LATCH (B)LATCH (A)

10

VDD***

9

IN+ (B)

IN- (B)V

8

MAX903

1

VCC**

2

IN-

3

4

*

EE

DIP/SO

*ANALOG V- AND SUBSTRATE
**ANALOG V+
***DIGITAL V+

87VDD***

6

5

OUTIN+

GND

LATCHV

MAX900–MAX903

High-Speed, Low-Power Voltage Comparators

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)

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.

Analog Supply Voltage (VCCto VEE) ...................................+12V

Digital Supply Voltage (VDDto GND) ....................................+7V

Differential Input Voltage..................(V

EE

- 0.2V) to (VCC+ 0.2V)

Common-Mode Input Voltage..........(V

EE

- 0.2V) to (VCC+ 0.2V)

Latch-Input Voltage (MAX900/MAX902/

MAX903 only) .........................................-0.2V to (V

DD

+ 0.2V)

Output Short-Circuit Duration

To GND.......................................................................Indefinite

To V

DD

...............................................................................1min

Internal Power Dissipation................................................500mW

Derate above +100°C ................................................10mW/°C

Operating Temperature Ranges:

MAX900–MAX903_C_ _ .......................................0°C to +70°C

MAX900–MAX903_E_ _ ....................................-40°C to +85°C

Junction Temperature........................................-65°C to +160°C

Storage Temperature Range .............................-65°C to +150°C

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

PARAMETER SYMBOL CONDITIONS

Input Offset Voltage V

Input Bias Current I

Input Offset Current I

Input Voltage Range V

OS

B

OS

CM

VCM = 0
V

= 1.4V

O

IIN+ or IIN- 3 6 4 10 µA

VCM = 0;
V

= 1.4V

O

(Note 1) VEE - 0.1

MAX900A/MAX901A

MIN TYP MAX MIN TYP MAX

0.5 2.0 1.0 4.0 mV

50 250 100 500 nA

V

-

CC

2.25

MAX900B/MAX901B/

MAX902/MAX903

V

- 0.1

EE

V

CC

2.25

-

UNITS

V

Common-Mode Rejection
Ratio

Power-Supply Rejection
Ratio

Output High Voltage V

Output Low Voltage V

Latch-Input Voltage High V

Latch-Input Voltage Low V

Latch-Input Current High I

Latch-Input Current Low I

CMRR

PSRR (Note 2) 50 150 100 250 µV/V

LH

OH

OL

LH

LL

LL

-5V < V
+2.75V,
V

O

(Note 2)

VIN > 250mV,
I

SRC

VIN > 250mV,
I

SINK

(Note 3) 1.4 2.0 1.4 2.0 V

(Note 3) 0.8 1.4 0.8 1.4 V

VLH = 3.0V
(Note 3)

VLL = 0.3V
(Note 3)

CM

= 1.4V

= 1mA

= 8mA

<

50 150 75 250 µV/V

2.4 3.5 2.4 3.5 V

0.3 0.4 0.3 0.4 V

1 20 1 20 µA

1 20 1 20 µA

MAX900–MAX903

High-Speed, Low-Power Voltage Comparators

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)

TIMING CHARACTERISTICS

(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= +25°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS

Positive Analog
Supply Current

Negative Analog
Supply Current

Digital Supply
Current

Power
Dissipation

I

I

I

PD

(Note 7) 10 15 5 8 2.5 4 mA

CC

(Note 7) 7 12 3.5 6 2 3 mA

EE

(Note 7) 4 6 2 3 1 1.5 mA

DD

V

= VDD =

CC

+5V, V

EE

= 0

M AX900A/M AX901A
M AX900B/M AX901B

MIN TYP MAX MIN TYP MAX MIN TYP MAX

70 105 35 55 18 28 mW

MAX902 MAX903

PARAMETER SYMBOL CONDITIONS

VOD = 5mV,

= 15pF,

Input-to-Output High
Response Time

Input-to-Output Low
Response Time

Difference in
Response Time
Between Outputs

t

pd+

t

∆t

pd

C

L

I

= 2mA

O

(Note 4)

= 5mV,

V

OD

= 15pF,

C

L

­I

= 2mA

O

(Note 4)

(Notes 4, 5) 0.5 2.0 0.5 2.0 0.5 2.0 ns

pd

MAX900A/MAX901A
MAX900B/MAX901B

MIN TYP MAX MIN TYP MAX MIN TYP MAX

810 810 810 ns

810 810 810 ns

MAX902 MAX903

UNITS

UNITS

Latch Disable to
Output High Delay

Latch Disable to
Output Low Delay

Minimum Setup Time t

Minimum Hold Time t

Minimum Latch
Disable Pulse Width

t

pd+ (D)

t

pd- (D)

t

pw (D)

(Notes 3, 6) 10 10 10 ns

(Notes 3, 6) 12 12 12 ns

(Notes 3, 6) 2 2 2 ns

s

(Notes 3, 6) 1 1 1 ns

h

(Notes 3, 6) 10 10 10 ns

MAX900–MAX903

High-Speed, Low-Power Voltage Comparators

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS

(VCC= +5V, VEE= -5V, VDD= +5V, LE1–LE4 = logic high, TA= full operating temperature, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS

Input Offset Voltage V

OS

VCM = 0,
V

= 1.4V

O

MAX900A/MAX901A

MIN TYP MAX MIN TYP MAX

13 26 mV

MAX900B/MAX901B/

MAX902/MAX903

UNITS

Input Bias Current I

Input Offset Current I

Input Voltage Range V

Common-Mode
Rejection Ratio

Power-Supply
Rejection Ratio

Output High Voltage V

Output Low Voltage V

Latch Input Voltage
High

Latch Input Voltage
Low

Latch Input Current
High

Latch Input Current
Low

B

OS

CM

CMRR

PSRR (Note 2) 100 250 150 500 µV/V

OH

OL

V

LH

V

LL

I

LH

I

LL

I

IN+

VCM = 0,

= 1.4V

V

O

(Note 1)

-5V < V
+2.75V,
V

= 1.4V

O

(Note 2)

VIN > 250mV,
I

SRC

VIN > 250mV,
I

SINK

(Note 7) 1.4 2.0 1.4 2.0 V

(Note 7) 0.8 1.4 0.8 1.4 V

VLH = 3.0V
(Note 7)

VLL = 0.3V
(Note 7)

or I

IN-

CM

= 1mA

= 8mA

4 10 6 15 µA

100 500 200 800 nA

V

-

EE

0.1

<

80 250 120 500 µV/V

2.4 3.5 2.4 3.5 V

0.3 0.4 0.3 0.4 V

2 20 1 20 µA

2 20 1 20 µA

VCC -

2.25

VEE -

0.1

VCC -

2.25

V